--- title: "Sparti Mainline — General Contractors | Houzz" canonical_html_url: https://www.houzz.com/professionals/general-contractors/sparti-mainline-pfvwus-pf~1705453573 markdown_url: https://www.houzz.com/md/professionals/pf~1705453573.md entity_type: LocalBusiness business_name: "Sparti Mainline" category: ["General Contractors"] image: https://st.hzcdn.com/fimgs/6383d20a08e6943f_4544-w400-h400-b0-p0--.jpg address: "Contact for Appointment, Berwyn, Pennsylvania 19312, United States" latitude: 40.0412 longitude: -75.4475 phone: "(610) 756-2858" website: http://www.spartimainline.com rating: 5 review_count: 40 best_of_houzz_awards: 7 followers: 20 last_updated: 2026-08-23 --- # Sparti Mainline > Montgomery County's Reputable General Contractor \| 6x Best of Houzz Original Houzz profile: [Sparti Mainline](https://www.houzz.com/professionals/general-contractors/sparti-mainline-pfvwus-pf~1705453573) ## Professional summary - **Primary category:** General Contractors - **Location:** Berwyn, PA - **Serves:** Norristown, Radnor, Chester, Drexel Hill, King of Prussia, West Goshen, Phoenixville, West Norriton, Ardmore, East Norriton, Newtown Square, Broomall, Conshohocken, Collingdale, Villanova, Plymouth Meeting, Blue Bell, Exton, Paoli, Media, Bryn Mawr, Chesterbrook, Trooper, Collegeville, Narberth, Malvern, East Lansdowne, Lima, Devon, West Conshohocken, Wayne, Gladwyne, Valley Forge - **Houzz rating:** 5.0 out of 5 (40 reviews) - **Best of Houzz:** 7 awards (2018–2026), for Service. ## About ### Houzz Badges - Houzz Pro Software User - Recommended on Houzz - 25 Ideabook Saves - Best of Houzz winner - Family owned - High-end - Verified Hires - Hired on Houzz - Responds Quickly ### Business highlights - Best of Houzz winner - Family owned - High-end - 6 Verified Hires - 1 Hire on Houzz - Responds Quickly TIMELESS DESIGN • SUPERIOR QUALITY & CUSTOMER SERVICE • LOCALLY OWNED AND OPERATED Sparti Construction is a full-service general contracting company serving Chester and Montgomery Counties in PA. We pride ourselves in the quality and craftsmanship of our work. Every project is unique, from small decks to custom homes. Sparti Main Line is led by Peter Economou, a successful builder and general contractor that has served the Delaware Valley for over 25 years. Peter has overseen the construction of over 500 units of residential and commercial construction. These projects include the construction of many new homes, renovations and additions. Peter is proud to have served as Building Committee Chair for the Montessori Children’s House of Valley Forge, where he has directed the construction of a $4M conversion of a historic barn and farm house into an award winning school in Valley Forge National Park. Peter holds a BSBC from Georgia Tech, and an MBA from Villanova University. Contact us today to find out how we can assist you with your project. Give us a call today at (610) 587-7755! ### Services Provided - Home Remodeling - Bathroom Remodeling - Kitchen Remodeling - General Contracting - Home Additions - New Home Construction - Home Extensions - Deck Building - Basement Remodeling - Flooring Installation - Garage Building - Outdoor Kitchen Construction - Porch Design & Construction - Pool House Design & Construction - Custom Home Bars - House Framing - Window Replacement - Wood Floor Installation - Attic Conversion - Window Installation - Demolition - Roof Installation - Attic Restoration - Structural Engineering ### Areas Served - Norristown - Radnor - Chester - Drexel Hill - King of Prussia - West Goshen - Phoenixville - West Norriton - Ardmore - East Norriton - Newtown Square - Broomall - Conshohocken - Collingdale - Villanova - Plymouth Meeting - Blue Bell - Exton - Paoli - Media - Bryn Mawr - Chesterbrook - Trooper - Collegeville - Narberth - Malvern - East Lansdowne - Lima - Devon - West Conshohocken - Wayne - Gladwyne - Valley Forge ### Typical Job Cost $10,000 - 5 million Each job is priced based on time and materials. ## Business Details | Field | Value | | --- | --- | | Business Name | Sparti Mainline | | Address | Contact for Appointment, Berwyn, Pennsylvania 19312, United States | | Phone | (610) 756-2858 | | Website | http://www.spartimainline.com | | License Number | pa087824 | | Followers on Houzz | 20 | **Social profiles:** - Facebook — https://www.facebook.com/spartimainline/ ## Contact - **Houzz profile:** [Sparti Mainline](https://www.houzz.com/professionals/general-contractors/sparti-mainline-pfvwus-pf~1705453573) - **Website:** http://www.spartimainline.com - **Phone:** (610) 756-2858 ## Credentials - **Best of Houzz:** 7 awards (2018–2026), for Service. **Affiliations** - [National Association of Home Builders](https://www.houzz.com/professionals/schools-and-organizations/national-association-of-home-builders-pfvwus-pf~562065019) - [PA Builders Association](https://www.houzz.com/professionals/schools-and-organizations/pa-builders-association-pfvwus-pf~941577855) ## Reviews **Overall rating: 5.0 out of 5 — 40 reviews** *Aspect averages:* - Work Quality: 48.0 - Communication: 50.0 - Value: 48.0 ### Featured Review **★★★★★ — Howie Gordon, April 2025** > This was the second major remodel that Sparti did for us and, if we were ever to do a third, we wouldn't hesitate to hire them again. The first one was our bathroom and they did such a great job we hired them to remodel our kitchen. Peter is a breeze to work with and communicates promptly and clearly. No guesswork at all. He gave us a clear breakdown of all costs and a timeline of when each step would be completed (everything went according to schedule). His main crew Dave and Dave are fantastic. Their work is meticulous and impressive to watch. We couldn't recommend them more highly. A++ ### All 40 reviews **★★★★★ — Heather, July 2026** > I HIGHLY recommend Sparti Construction!!! It was really a pleasure working with Peter and his team. They were organized, responsive, hands-on, careful, and hard-working. They kept to timelines and, most of all, the quality of work was excellent. Even when things were moving slowly or an accident happened, they were always honest and always made things right. I have heard numerous horror stories about contractors in the area - but Peter's team was excellent. Mostly, they work with integrity and clearly value their craft. **★★★★★ — jonathanbykowski, Aug. 2025** > Peter, Dave, and David were fantastic. They built a complex addition onto the second floor of our historic house. I was very concerned about the details and the quality of craftsmanship. They far exceeded my expectations. From the outset they were organized, communicated well, and kept us informed and the site organized. The carpentry was outstanding. The new trim they built to match our existing 1926 trim is identical. I am an architect and I am pretty picky about the quality of the work. They more than met my specs and for a very reasonable price as compared to other bids we received. We plan to use them again for future work and would highly recommend them. **★★★★★ — Caroline H, Aug. 2025** > My husband and I hired Peter after meeting with 8 different contractors for our kitchen remodel and lower level flooring project. He was very responsive from the beginning, which was great as first time homeowners embarking on such a big project. We also felt that his estimate was fair and the most detailed of all that we saw. We felt like we really knew what to expect. The few hiccups we had were handled quickly. Our small kitchen somehow doubled in size with a few layout changes! The functionality has greatly improved. We are very happy with the end result and would recommend Peter and his crew to anyone looking to remodel their home. **★★★★★ — Gisela & Scott, Jan. 2025** > Last week, our full kitchen and partial living room renovation by Sparti Main Line was completed. My husband and I are beyond happy with the results. We received three bids and ultimately chose Peter Economou’s because his was, by far, the most detailed and precise in terms of outlining every single phase and cost of the project. He was also the most personable and honest GC we encountered. We felt he was the most interested in the project, and we could sense he truly cared about delivering what he promised. We also had plans prepared by an architect for the project, which Peter happily took on, a proposal which could have been discouraging to other contractors. > > Peter’s team of subcontractors were absolute gems. Not only were they professional, respectful and friendly, their workmanship was impressive. Our custom island top was a 16-foot piece of solid wood, and we wanted an induction cooktop and pop-up vent installed in it. Sparti’s carpentry team was able to cut the space for this, despite this being a daunting task – they only had one shot to get it right. Their ability to nail this task on the first try was crucial, and I don’t think anyone without the right skills and experience would have been able to do it. > > Finally, the icing on the cake was Peter and his team’s warmth and friendliness throughout the process. We lived in the house during the three-month renovation, which isn’t exactly a comfortable situation when contractors are present every day. But these guys were all respectful and downright pleasant to have around. They put up with our sweet but very vocal dog and with our occasional need to get into our fridge. This may all sound frivolous, but to feel comfortable in our own home during this process was not a given. It was nice to feel not only that people were doing a great job, but that they were good people too. > > I would not think twice about hiring Sparti for another renovation job down the line. The project remained at the budget proposed, finished in a timely manner, and at the final meeting, Peter explained where every single cent went. We feel it was money well spent, and we are thrilled to have found a contractor we can trust. **★★★★★ — Nick Reed, Jan. 2025** > Sparti Mainline performed the renovation of our kitchen during the end of 2024 and they did a wonderful job! We worked with Peter, who is very down to earth but professional, and had a really great experience. Sparti was very thorough during the whole process and their crews/contractors provided valuable alternatives when issues arose. It was a pleasure working with Peter and he was always available for even the most basic questions. I would highly recommend working with Sparti Mainline and hope to use their services again someday! **★★★★★ — Steven Berens, Jan. 2025** > Working with Saprti was a truly great experience. The team was extremely communicative along our whole remodel journey. The also gave solid recommendations that we implemented and save us some money. I would highly recommend using Sparti for your home remodel and other projects as they are highly professional, do great work, and work in partnership with their clients. **★★★★★ — Susan Aument, Nov. 2024** > A painless bathroom renovation all in all. Everything looks as I had envisioned. Dave and David are careful workers and good communicators. **★★★★★ — Valerie Walter, Sept. 2024** > My project is complete and exactly as hoped for.. Included in the changes were hardwood installation and refinishing, partial wall removal, and lighting. My space has been opened up, brightened and modernized . All of the craftsmen were competent, timely and polite. Peter, from Sparti Mainline, kept me informed and responded quickly to questions. I have given Sparta Mainline 5 stars. **★★★★★ — Thomas Crookham, May 2024** > Highly recommend! > > We did a renovation - adding a large garage with second floor living space to our home, which involved breaking through walls on two floors of the house, extending a bathroom, and building multiple living spaces. > > Peter and the Sparti Mainline team were professional, responsive, respectful, and diligent. They delivered quality work, stayed within the project timeline, and quickly addressed and resolved any problems. Their pricing was reasonable and transparent, every member of the team was respectful to us and our home, and they listened and discussed any requests and issues (rather than told or ‘explained’ as though we were children). > > They were a pleasure to work with, and we highly recommend them. **★★★★★ — Susie, Feb. 2024** > Sparti Mainline recently finished up our home renovation which included adding 100 sq ft off the back of the house, a new kitchen and dining area which are now open concept with the living room and a transformation of the exterior (a new expanded, mostly covered patio, a new covered front porch, new steps/walkways, staining of the brick and new siding.) > The Sparti team and the subcontractors they used were very professional and did great work. > Peter was easy to work with throughout the project - good with communication and made sure things were done to meet (or exceed) our standards. > We are so happy with the end product and highly recommend! **★★★★★ — Howie Gordon, Jan. 2024** > Peter and his team are amazing. Peter is incredibly communicative during every step of the process and schedules his people so that the project keeps moving forward. The work his people does is exacting and on point, especially Dave and Dave! We had an original bathroom from our 1950's house that was cramped and in need of a remodel. It is now an extremely soothing and relaxing room. We are thrilled with the results. **★★★★★ — aimbesi59, Nov. 2023** > Highly recommend! Peter and his team helped us complete a detached garage with living space above, as well as a mudroom and enclosing a side porch - including a laundry room makeover. His timeline and pricing were transparent and (mostly) accurate. We are very pleased with our new space and recommend the team. **★★★★★ — shellswhite, July 2023** > We used Peter (Sparti Mainline) for a complete kitchen gut and renovation this Spring. We could not be happier with the outcome and whole process. Everything went smoothly from the design process, through the execution and completion. Peter and his crew(s) were easy to communicate with and every question or concern was handled promptly. There were a few things we had hoped to do that weren't possible due to > structural issues but his team worked with us to come up with some creative solutions. The timeline of the project went exactly as planned. We are thrilled with our kitchen and it is a pleasure to see and use it everyday!! **★★★★★ — Hannah, April 2023** > Sparti Mainline was a pleasure to work with, as they recently completed a full renovation of our two-story detached garage for us. Peter understood our vision from our first meeting and worked hard to keep our project within our budget and scope. Peter was communicative, continually updating us along the way, whether in regards to materials, timeline or budget updates. His team showed up every day, ready to work and completed our project exactly on schedule. Everyone who worked on our project was kind, personable and open to any questions or concerns we had. Our finished space is beautiful and exactly how we envisioned it. > > We are thrilled with our completed space and look forward to using it for years to come! **★★★★★ — Adam Taicher, April 2023** > We had lived in our house for over 25 years, raised 3 wonderful children and were wanting to have a more updated living experience. Our kids had started moving out so we considered purchasing a new home. As we started to look at the real estate market in our area, Berwyn PA we determined that we really loved our neighborhood and all the wonderful memories of our family had experienced so we decided to do a major renovation. We started with an architect Reen Hoffman (who was great), Reen provided the names of several contractors and after vetting 4 we decided on Sparti Mainline, Peter Economou. Right from the start of our relationship Peter was great to work with. He and his team were fantastic communicators. Peter worked with us to bring our dream to reality he had great ideas as we kept wanting to add to the initial project. Peter provided great options and I fully understood the cost and any timing changes would have on the project. I always felt that Peter not only had our best interest at heart but my wallet as well. He gave advice, he did not just do what we asked. That partnership helped us remain on budget and really get what we wanted. His team was awesome from the subs to his specific team they were friendly and professional with great attention to detail. We could not be more please it has totally changed our living experience. We completely re-did our downstairs creating a new kitchen greatroom, new ceilings in our living room front porch and upstairs hallway. We added a significant addition that allowed us to stay on the same footprint but add an enclosed porch and storage area and a new master bedroom with new walk in closets and a master bath. Thank you so much Peter we certainly would recommend you to anyone who asks!! Please check out link to some of our pics. > https://www.houzz.com/hznb/projects/71-cassat-ave-berwyn-pa-pj-vj~7105916?share=clipboard **★★★★★ — Claudette Leyden, Sept. 2022** > It took longer than expected but it turned out beautifully. Peter was very attentive to our needs and the follow up was done on a timely basis. **★★★★★ — Gillian Gutteridge, July 2022** > Peter's team completed a total renovation of our condo in Devon last year. We gutted the condo, knocked down walls and built an office in dead space within the unit. We love the result. The condo was transformed in exactly the way we had imagined. His team was entirely professional and understood what we wanted to achieve. We are very happy in our home and would definitely hire Peter and Sparti again. **★★★★★ — pshoup, July 2022** > We very much recommend Peter and his crew at Sparti. Professional, courteous, clean and hard working. > Sparti completed a basement renovation project for us and we were very pleased with the outcome. We had Peter build out an electric fireplace bump-out, build a new mantle, mount a flat screen TV, and picture frame trim new fireplace area - amongst other items associated with our project. > The project was started and completed on time. Pricing remained at the proposal price. His team arrived every day during the project on time. The workers who arrived each day during the project were hard-working, pleasant and personable - and they put up with and enjoyed our 2 dogs. Work areas were cleaned up and left in order at the end of each day. > Peter and his crew did what we asked and what he promised. > Again, we would highly recommend Peter and his team and have already approached Peter about 2 more projects. > > Paul and Kim Shoup **★★★★★ — HU-595190510, Dec. 2019** > Peter helped us with our basement renovation, which included new floors & paint, reconfiguring a few rooms, converting a half-bath into a full Jack-n-Jill bath, and installing an egress. He listened to what we wanted while at the same time offering helpful suggestions along the way. When unforeseen issues popped up, he worked with us to resolve them as efficiently as possible. His quotes and billing are clearly itemized, transparent and fair. His crew were professional and efficient. The end result is a great new space that our teenage boys can now call their own! **★★★★★ — Chett Garcia, Dec. 2019** > Peter widened our entryway, took down foyer walls, re-tiled our kitchen floor, and added a new bathroom on our third floor. The work is beautiful and high quality. We were out of the country for most of the work and trusted Peter every step with no misgivings what so ever. **★★★★★ — HU-681614871, Oct. 2019** > Sparti construction (and Peter as general contractor) did a kitchen remodel which included removing an interior wall (between kitchen and dining room), changing heating and plumbing locations, and massive electrical re-wiring. Peter and his crew of meticulous craftsmen were always professional. Peter jumped on board with enthusiasm for our vision and even had some of his own ideas including one for the flooring which made the end result an amazing space. We had several snags with the kitchen cabinets and cabinet supplier and Peter & the crew were extremely professional and flexible trying to stay on our timeline; and also mitigate the inconveniences by the cabinet supplier. Peter coordinated seamlessly and timely with the various subs - who were all great too. Additionally we appreciated the transparent way Sparti manages labor and material costs. We heartily recommend Sparti for projects big and small and we wouldn’t hesitate to call them for our next project. **★★★★★ — Matthew Shaw, July 2019** > Once we decided to do a renovation, we knew we had to talk to Peter and Sparti Mainline. Why did we know this? Well, Peter did a major renovation for my sister and brother-in-law and they just raved about his communication, work ethic and his team. We had Peter in to discuss our project and we were extremely impressed right away. We just seemed to connect with him. My wife had a clear vision of what she wanted for our space and Peter was like, yes, let’s do it! He was enthusiastic about the project and had some excellent ideas to put her vision into place. We ultimately hired Peter and team to redo our sunroom. The room was a DIY job by the previous owner, and while it was a cool space, the insulation was poor and it just was not usable at all in the hot summer months or cold winter months. I work from my home and my wife thought it would be ideal to turn this space into a new office for me, and a much smaller, but usable and functional sunroom. Once Peter and his team got started, they were just fantastic. Peter is easy to work with, very communicative and open to critiques and suggestions. His timeline for our job was 6-8 weeks and they wrapped up the project in just about 5 weeks. Not only did the job finish earlier than expected, but we stayed right on budget, which is always important. He has remained in contact to ensure we are happy with everything and to ensure that a few little minor items will be full resolved. I could not recommend Peter any stronger, he's the right fit for your next renovation project! **★★★★★ — Shannon Lopez, May 2019** > I hired Sparti Mainline to turn my screened porch into an enclosed dog/workout room. It required window, flooring, and door installation, heating/cooling, lighting and electrical work plus a dog door with steps. They did the job very quickly, were in close communication every step of the way, were on always on time, sometimes going beyond what the job required (clearing existing trash/debris). I already have a list of other projects and will not use anyone else. **★★★★★ — Christine Reyes, March 2019** > Sparti did a fabulous job with the extension of our home. We love how it looks. We appreciate how responsive Peter was in answering any of our questions and keeping us updated every step of the way. We were pleased with the results - we think our house is the best on the block. Thank you Sparti! **★★★★★ — Marie Patterson, Feb. 2019** > i hired this company because had previously done work for me. They installed a new kitchen about 5 years ago. I knew they were reliable and they will come back if there are any problems. This job was for a new Master Bath and a new powder room.. The entire bathroom was being demolished because i was getting rid of a big soaking top and putting in a large walk in shower. Everything is finished and both the bathroom and powder room are beautiful. **★★★★★ — Kate Boyle, Oct. 2018** > The very best part of working with Sparti was how communicative Peter was before, during & after our project. I always felt confident that he would listen to my concerns and that we could find solutions to any surprises that came up. Our new kitchen is stunning and functional. Our new back room is already our favorite spot in the house. We can't wait to have Peter & his guys back to do more to make our house our dream home. > > Thank you, Sparti Mainline! **★★★★★ — Lance Losey, July 2018** > Peter and his team did a great for us, everything came out as expected (or better) and for the price contracted. Very happy **★★★★★ — Lauren Mitteer, June 2018** > We are so thankful to have had Peter and his team lead complete renovation project! We purchased a fixer-upper in South Philadelphia that we knew we wanted to renovate. It was a gut-reno project that involved nearly every aspect of the house and adding a second story addition off the back (I'd say we took it down to the studs, but those came out, too!). We got multiple groups out for bids, but stopped looking after meeting Peter. You can tell he's a down-to-earth guy who's honest and realistic--which I think are exactly what you want in a Contractor. > Peter walked us through every step of the way from budget planning to final execution and keep \*consistent and solid communication\* from start to finish. Every time we peeked in to see the progress, the house was swept, tidy, and organized (which is something we didn't expect and really appreciated). > We could not be happier with the final product! His attention to detail (and that of his team) is outstanding. We're still finding little touches he added in that really make our house shine (the trimming on the custom stairs, the adorable little door to access storage under the stairs, the perfectly flush and level shower tiling, etc.). > Sparti will be our contractor for life and we could not recommend them more. **★★★★★ — Thomas Cagnole, Feb. 2018** > A positive experience from start to finish. Have already past along Peter's name and phone number to an interested neighbor. Peter has completed several projects in our community, all of those neighbors only have good things to say about Peter & Sparti Mainline. **★★★★★ — Wendy Wilhelm, Feb. 2018** > We had several pressing projects we wanted completed prior to the arrival of our baby girl. We looked at several contractors and it was clear during the process that Sparti understood our needs and budget better than the competition. They used some creative solutions to save $$ and time, and gave us excellent guidance when we weren't sure what we wanted. They handled everything from major renovations to minor fixes and touch ups. They were punctual and quick, but thorough and the quality of the work was very high. The GC was here every other day to make sure we were getting everything we wanted. They were versatile enough to handle everything we threw at them, which was a lot. I would absolutely recommend them to anyone looking for quality work. **★★★★★ — Terry McLaughlin, Feb. 2018** > Peter and his crew were very professional and we were happy with the work done in our basement as well as some other small areas we needed updated. He made us feel more like old friends, a breath of fresh air compared to some other contractors we've worked with. Highly recommend. **★★★★★ — Clara Roberts, Jan. 2018** > Love my new kitchen. Thanks so much, will definitely hire again. Clean, professional and impeccable craftsmanship. They even had ideas that I didn't consider which worked perfectly in my home **★★★★★ — Hilary Collins, Nov. 2017** > From start to finish, Sparti Main Line was a joy to work with. Timely, professional, and responsive at every turn, Peter worked diligently to satisfy our wants, spending a good amount of time sourcing material for our deck that was not readily available. Dmitiri, our onsite project lead and craftsman, emphasis on craftsman, brought his very detail-oriented skills to the job on a daily basis. As with any project, we had a couple of additional requests as they wrapped up, and once again they satisfied our needs. We are delighted with the results. Thank you, Peter, Dmitiri, and the entire team. **★★★★★ — Alpine Flooring and Design, Oct. 2017** > I have worked with Sparti Construction on several projects. Peter and his staff do an excellent job coordinating the job from the planning phase all the way to the finished product. The Sparti carpenters as well as the subs are very responsive to any questions and do high quality work. **★★★★★ — Andy Bella, July 2017** > We didn't have the easiest job for Dimitri at Sparti Mainline and he absolutely exceeded all of our expectations. He was professional, responsive, informative, fairly priced, and the work was done well and promptly. We have had several projects done at our house over the past few years, ranging from interior painting, exterior door replacements, finished basements, etc. completed by a handful of different contractors; we've been fortunate enough to have positive experiences with all the contractors but after working with Dimitri at Sparti they will be our first and only call for any future work. They're a must call if you are considering any type of renovation. **Comment from Sparti Mainline:** > Andy, thank you for taking the time to review us! We enjoyed working with you! **★★★★★ — Richard Douglass, June 2017** > The service was prompt, done very well and I am completely satisfied with the work performed by the craftsmen. They did everything that was required and more. I would recommend them for most any repair that requires skill and patience. **Comment from Sparti Mainline:** > Thank you for the review, Richard! Pleasure working with you. **★★★★★ — Renee Rozes, June 2017** > Peter and his crew from Sparti Mainline have always exceeded my expectations with any of our home remodeling projects which have included a complete basement renovation to replacing windows and sliding doors, kitchen flooring and tile work. They are honest reliable professionals with quality workmanship. All work was completed in a timely manner and within budget. I highly recommend Sparti Mainline. **Comment from Sparti Mainline:** > Renee, thank you so much for taking the time to post this review! Always a joy working with you! **★★★★★ — Shantha Curnyn, April 2017** > Wow! I have my dream house, Peter was able to make it happen at a reasonable price point. He really listened to what I wanted and provided expertise in the construction process and a skilled team. Our project included the addition of round great room with copper roof and stone fireplace, redesign of the front porch and entranceway in stone, redid all bathrooms, and reconfigured my master bedroom suit to increase size with a dormer, expanded master bathroom, added a master closet and sitting area. This was a very large project and Peter managed all of it well. **Comment from Sparti Mainline:** > Thank you so much for taking the time to review us, Shantha! We enjoyed working on this project with you. **★★★★★ — Gillian Gutteridge, April 2017** > Peter Economou is exceptionally professional and does an excellent job on budget and on time. His company totally renovated two bathrooms for us. Not only did he help us with our selection of materials that were appropriate for our project but he took great pride in making sure that the projects turned out as we wished and are both beautiful and functional. Sparti also replaced our deck a couple of years ago. This was also a great project. We highly recommend Sparti Construction. **Comment from Sparti Mainline:** > Thank you so much for taking the time to post a review for us, it's always a pleasure working with you! ## Selected projects - [Meet The Team](https://www.houzz.com/hznb/projects/meet-the-team-pj-vj~7105924) - Location: Philadelphia, PA - Photos: 9 - [Condo Renovation - Devon, PA](https://www.houzz.com/hznb/projects/condo-renovation-devon-pa-pj-vj~7014140) - Location: Philadelphia, PA - Photos: 9 - [New Construction - Manayunk, PA](https://www.houzz.com/hznb/projects/new-construction-manayunk-pa-pj-vj~7014142) - Location: Philadelphia, PA - Photos: 11 - [Whole House Renovation - Roxborough, PA](https://www.houzz.com/hznb/projects/whole-house-renovation-roxborough-pa-pj-vj~7014149) - Location: Philadelphia, PA - Photos: 6 - [71 Cassat Ave Berwyn PA](https://www.houzz.com/hznb/projects/71-cassat-ave-berwyn-pa-pj-vj~7105916) - Location: Berwyn, PA - Photos: 13 - [Bathroom Remodel - Wayne, PA](https://www.houzz.com/hznb/projects/bathroom-remodel-wayne-pa-pj-vj~7014138) - Location: Philadelphia, PA - Photos: 6 - [new Construction - Roxborough, PA](https://www.houzz.com/hznb/projects/new-construction-roxborough-pa-pj-vj~7014146) - Location: Philadelphia, PA - Photos: 13 - [Home Renovation](https://www.houzz.com/hznb/projects/home-renovation-pj-vj~2508855) - Location: Wayne, PA - Photos: 12 - [Chesterbrook Renovation](https://www.houzz.com/hznb/projects/chesterbrook-renovation-pj-vj~2626910) - Location: Chesterbrook, PA - Photos: 6 - [Gladwyne Home New Construction](https://www.houzz.com/hznb/projects/gladwyne-home-new-construction-pj-vj~2478450) - Location: Berwyn, PA - Photos: 7 - [Master Bathroom addition](https://www.houzz.com/hznb/projects/master-bathroom-addition-pj-vj~2429285) - Location: Wayne, PA - Photos: 1 - [Deck Remodel and Repair](https://www.houzz.com/hznb/projects/deck-remodel-and-repair-pj-vj~2429278) - Location: Wayne, PA - Photos: 6 - [Stone Addition Devon, PA](https://www.houzz.com/hznb/projects/stone-addition-devon-pa-pj-vj~2429264) - Location: Devon, PA - Photos: 9 - [2 Br Condo in Philadelphia Center City High Rise](https://www.houzz.com/hznb/projects/2-br-condo-in-philadelphia-center-city-high-rise-pj-vj~2832600) - Location: Philadelphia, PA - Photos: 7 - [Haverford, PA Addition](https://www.houzz.com/hznb/projects/haverford-pa-addition-pj-vj~5336405) - Location: Havertown, PA - Photos: 7 - [New Composite Deck and Railing System](https://www.houzz.com/hznb/projects/new-composite-deck-and-railing-system-pj-vj~2948227) - Location: Chester Springs, PA - Photos: 4 [See all 16 projects](https://www.houzz.com/professionals/general-contractors/sparti-mainline-pfvwus-pf~1705453573) ## Video - [Company video](https://player.vimeo.com/external/840711159.m3u8?s=2c90e970f1267a8bbf3e0de209e97f55aace0051&oauth2_token_id=1384357804) ## Frequently Asked Questions **Are you licensed, bonded, and insured?** Yes, as a professional general contracting company, we are fully licensed, bonded, and insured. This ensures that all our projects are handled with the utmost professionalism and that you, as our client, are protected throughout the construction process. It's a fundamental part of how we operate, reflecting our commitment to superior quality and customer service. **Do you handle permits and inspections?** Absolutely. As a full-service general contracting company, we manage all necessary permits and inspections for your project. We handle this entire process to ensure everything is compliant with local regulations, allowing you to focus on the exciting aspects of your home transformation. Our goal is to make the process as seamless as possible for you. **What kind of projects you specialise in?** We specialize in a wide range of residential projects, from comprehensive home remodeling, kitchen and bathroom renovations, and basement finishing, to significant home additions, extensions, and new home construction. Our expertise also covers custom home bars, deck building, and even structural engineering. Peter Economou, our leader, has overseen over 500 units, demonstrating our ability to handle projects from small decks to custom homes with superior quality and craftsmanship. **Do you handle full home additions and major renovations?** Absolutely, we specialize in full home additions and major renovations. Our services include comprehensive home remodeling, extensions, and new home construction. Peter Economou, our leader, has overseen numerous renovations and additions, including a significant $4M conversion project for the Montessori Children’s House, demonstrating our extensive experience with large-scale transformations and complex projects. **What makes your general contracting services different from others locally?** What sets Sparti Mainline apart is our unwavering commitment to 'TIMELESS DESIGN • SUPERIOR QUALITY & CUSTOMER SERVICE.' We are a locally owned and operated full-service general contracting company, deeply rooted in Chester and Montgomery Counties. Our leader, Peter Economou, brings over 25 years of experience, having overseen more than 500 residential and commercial projects, including award-winning conversions. This extensive expertise, combined with our focus on unique craftsmanship, ens... *FAQ content may be generated based on the Pro's Houzz profile and website.* ## Ideabooks - [Wynnewood Deck](https://www.houzz.com/ideabooks/86722336/list/wynnewood-deck) — 4 ideas - [Pikeland Hearth Idea Book](https://www.houzz.com/ideabooks/86721724/list/pikeland-hearth-idea-book) — 5 ideas [See all 2 ideabooks](https://www.houzz.com/ideabooks/users/n5538q) --- *Source: Houzz professional profile. Reflects the profile as of 2026-08-23.*