--- title: "Monsen Collins Builders — General Contractors | Houzz" canonical_html_url: https://www.houzz.com/professionals/general-contractors/monsen-collins-builders-pfvwus-pf~218490537 markdown_url: https://www.houzz.com/md/professionals/pf~218490537.md entity_type: LocalBusiness business_name: "Monsen Collins Builders" category: ["General Contractors"] image: https://st.hzcdn.com/fimgs/4733de7b010059ff_2725-w400-h400-b0-p0--.jpg address: "14320 Saratoga Sunnyvale Rd #3, Saratoga, California 95070, United States" latitude: 37.2713 longitude: -122.0227 phone: "(800) 871-9590" website: https://www.monsencollins.com/ rating: 4.9 review_count: 11 best_of_houzz_awards: 2 followers: 104 last_updated: 2026-09-01 --- # Monsen Collins Builders Original Houzz profile: [Monsen Collins Builders](https://www.houzz.com/professionals/general-contractors/monsen-collins-builders-pfvwus-pf~218490537) ## Professional summary - **Primary category:** General Contractors - **Location:** Saratoga, CA - **Serves:** San Jose, Sunnyvale, Santa Clara, Redwood City, Mountain View, Palo Alto, Cupertino, Campbell, Menlo Park, Los Gatos, Los Altos, Saratoga, San Carlos, Belmont, Los Altos Hills, Atherton, Woodside, Cambrian Park, Monte Sereno, Pescadero, Coastside, Redwood Estates - **Houzz rating:** 4.9 out of 5 (11 reviews) - **Best of Houzz:** 2 awards (2017–2018), for Service. ## About ### Houzz Badges - Star Houzzer - 5 Star Houzzer - Houzz Influencer - Recommended on Houzz - 25,000 Ideabook Saves - Best of Houzz winner - Locally owned - References available Dear Homeowner, Your Vision. Our Passion. At Monsen Collins Builders this is more than just a motto, it is the North Star that guides every facet of our company. Our passion is to bring your vision of home, family and space to life. As a boutique custom design-build firm we are dedicated to offering each and every one of our clients a high touch collaborative building experience, because we know it is not only the final results that matter but the journey that got us there. Drawing upon our decades of combined experience we have created a residential design and production system that will educate, inform and respond to our clients needs throughout the building process. We look forward to what is next, so please let us know how we might serve you today! ### Services Provided - Home Remodeling - Bathroom Remodeling - Kitchen Remodeling - General Contracting - Home Additions - Custom Homes - New Home Construction - Home Extensions - Accessory Dwelling Units (ADUs) - Guesthouse Design & Construction - Home Restoration - Pool House Design & Construction - Multigenerational Homes - Green Building - Tiny House Construction - Custom Home ### Areas Served - San Jose - Sunnyvale - Santa Clara - Redwood City - Mountain View - Palo Alto - Cupertino - Campbell - Menlo Park - Los Gatos - Los Altos - Saratoga - San Carlos - Belmont - Los Altos Hills - Atherton - Woodside - Cambrian Park - Monte Sereno - Pescadero - Coastside - Redwood Estates ### Typical Job Cost $500,000 - 2 million ## Business Details | Field | Value | | --- | --- | | Business Name | Monsen Collins Builders | | Address | 14320 Saratoga Sunnyvale Rd \#3, Saratoga, California 95070, United States | | Phone | (800) 871-9590 | | Website | https://www.monsencollins.com/ | | License Number | 1077882 | | Followers on Houzz | 104 | ## Contact - **Houzz profile:** [Monsen Collins Builders](https://www.houzz.com/professionals/general-contractors/monsen-collins-builders-pfvwus-pf~218490537) - **Website:** https://www.monsencollins.com/ - **Phone:** (800) 871-9590 ## Credentials - **Best of Houzz:** 2 awards (2017–2018), for Service. ## Reviews **Overall rating: 4.9 out of 5 — 11 reviews** *Aspect averages:* - Work Quality: 50.0 - Communication: 50.0 - Value: 50.0 ### All 11 reviews **★★★★★ — MB Design, Oct. 2022** > If you are planning on any kind of remodeling or building your new home , Monsen-Collins Builders crew should be your first choice. They will take care of you and your project as you are a member of their family. High-end contracting services and high-end results is what you can expect from them. They treat their co-workers as great as their clients and that great energy results in beautiful homes. **★★★★★ — Fleur de Lis Designs, June 2017** > Construction services did a great job following my architectural plans to the T. The overall project turned out exactly what I had planned with the clients. They were easy to work with and did a great job. The client had a very good experience working with them. **★★★★★ — Ann Stearns, June 2017** > Finding a home remodeling contractor who is trust-worthy, professional, and does quality work at a reasonable price is very important to me. So, I carefully screened prospective contractors referred by family, acquaintances, and public reviews. I selected Cassady Monsen from Construction Services based on a very favorable recommendation from a personal reference who had used him for her kitchen remodel and my impression after having met him. I liked his work style and felt most comfortable with Cassady compared to all the contractors I interviewed. His bid was thorough and he was responsive, accommodating, and respectful of my needs and requests. He provided several suggestions that I took and ended up loving. His crew and sub-contractors did a beautiful job on my kitchen remodeling. Not only they did do a great job on my kitchen, but they were also very friendly and nice folks. Some of them have worked for the company for more than a decade. They cleaned up neatly at the end of each day. When any issue arose, they promptly took care of it, even after the job was completed about a year later, hassle free. Cassady went beyond the call of duty. When I asked for his help to lay out area rugs for the living, dining, and bedroom, since the carpet cleaning company did not provide this service of moving heavy furniture, he gladly sent someone along with him to do it for me as a favor. Because it was such a pleasure working with Cassady due to the great job he did and his professionalism, I have selected him to remodel my bathrooms and manage the expansion of the master bedroom. That speaks for itself! **★★★★★ — Sridhar Sharma, Feb. 2017** > Construction Services was a wonderful company to work with. Our project was an addition of an ensuite to the main house. We had rigid City codes to work with and Cassady Monsen and his crew were very patient, knowledgeable and accommodating to all our requests. The quality of work was beyond excellent and materials used were all of very high standard. **★★★★★ — pbsaw03, Dec. 2016** > Choosing a general contractor for a remodel of one's home is a risky decision, but we couldn't be more thrilled with our selection of Construction Services. Cassady and his team are top-notch. They were responsible for a remodel that began as a kitchen remodel and became a whole-house remodel. We feel like we live in a completely new, high-quality structured home, thanks to the work of Cassady, Martin, Juan, and team. Their electrical, tile, and other specialty providers are wonderful, and vey talented at their trades. We lived in the remodel during the entire project (5 months) and it was far easier than I ever expected it would be. The workers were respectful, cleaned up after themselves thoroughly every day, and were genuinely nice and great to interact with. They even communicated and worked with our own independent contractors that we chose for certain components of our remodel (e.g. flooring, painting, fireplace refacing) to ensure the job site operated smoothly. Processing change orders, billing, and payments was easy, efficient, and accurate. In general, the company truly feels like the perfect combination of a family business whom you really trust and get a good "gut feel" about, but who are very professional and really know everything there is to know about the business. Without a doubt, we would/will choose to work with Cassady and his team again on our future home improvements. **★★★★ — j chew, Jan. 2016** > Construction Services was a pleasure to work with. Their estimate was clear and reasonable. I was informed up front of possible added costs. The work was done on time. There were problems, but the problems were resolved in a fair and professional manner. The job included cabinetry, two bathroom remodels, window replacement and the removal of a wall. I would call on Construction Services again. **★★★★★ — Anna Lisa Avelar Interior Design, Feb. 2013** > As a designer who works with contractors on a daily basis, I have to say that Cassady in the most professional contractor I have ever dealt with. He does solid work, is accountable, and truly cares about what the client wants, as opposed to just getting the job done. Just an absolute pleasure to work with, and I will definitely refer future clients. **★★★★★ — arledgej, Feb. 2013** > Bob and Cassady Monsen were a pleasure to work with. This being our first remodel (added Master BR and bath, remodeled 2 baths and kitchen, added exterior hardscape) I don't have anything to compare them to, however in absolute terms I could not have asked for more. From walking us through the bid and helping us think through the issues our plans might create, to advice on particular processes or materials, to the day-to-day interaction, to the quality of the construction itself, Construction Services continually exceeded our expectations. The 5 month project came in a few days early and exactly on budget (except for the changes that came at our request :)). I hired a few subcontractors directly myself (HVAC and painting), and in the end wish I had just used Construction Services to handle the details for me. The construction crew and foremen were all extremely professional and courteous as well. I was so pleased with their work we hired them for our complete exterior remodel and landscaping project we just kicked off. **★★★★★ — vegiwich, Jan. 2013** > Complete remodel and addition of two upstairs bedroom. > Along with landscaping and wonderful interior design help. > The place is gorgeous and we enjoy our new home. **★★★★★ — Charles Vadney, Jan. 2013** > After a glowing report about Construction Services from our neighbor across the street who used them do extensive remodeling, we decided to go with them for the remodeling of our bathroom and our whole-house repiping. Not only was their work excellent, but it was their positive attitude and gracious nature whenever we asked them to redo something that most impressed us. They were on time, neat and professional. They really wanted to make sure that we were satisfied at every step of the way. Long after their work is done, you will appreciate their attention to detail. I know that we do.There is much more praise that I could write about this wonderful company, but just use them; there will be no "buyer's remorse". **★★★★★ — susanlavelle, Jan. 2013** > Bob and Cassady Monsen did a complete remodel on our ranch-style home in San Jose in 2009, including a new kitchen, bathroom, front of the house, and second story. They transformed our small house into a spacious and comfortable home we adore. Bob and company completed our job on time with great attention to detail and superb quality, both in materials and craftmanship. Bob is a man of the highest integrity, and we have recommended him to many of our friends and colleagues. He has remodeled no fewer than four of our friends' homes. We were also pleased with the quality of his crew and how he so quickly dealt with issues that arose. We are so pleased to have Bob and Cassady as our life-long family friends. ## Selected projects - [Monte Sereno Custom Home](https://www.houzz.com/hznb/projects/monte-sereno-custom-home-pj-vj~7317641) - Location: Monte Sereno, CA - Photos: 56 - [South Los Altos Custom](https://www.houzz.com/hznb/projects/south-los-altos-custom-pj-vj~6164612) - Location: Los Altos, CA - Photos: 29 - [Downtown Sunnyvale Craftsman](https://www.houzz.com/hznb/projects/downtown-sunnyvale-craftsman-pj-vj~6166605) - Location: Sunnyvale, CA - Photos: 19 - [Custom Saratoga Remodel](https://www.houzz.com/hznb/projects/custom-saratoga-remodel-pj-vj~6630925) - Location: Not specified - Photos: 6 - [Los Altos Hills Classic Kitchen and Powder Room](https://www.houzz.com/hznb/projects/los-altos-hills-classic-kitchen-and-powder-room-pj-vj~178770) - Location: Los Altos Hills, CA - Photos: 19 - [Moreland Second Story Addition & Whole Home Renovation](https://www.houzz.com/hznb/projects/moreland-second-story-addition-and-whole-home-renovation-pj-vj~2514349) - Location: San Jose, CA - Photos: 4 - Description: 1000 Square Foot 2nd story addition with whole house remodel - [Morgan Hill Wine Country Lodge](https://www.houzz.com/hznb/projects/morgan-hill-wine-country-lodge-pj-vj~6168167) - Location: Morgan Hill, CA - Photos: 17 - [Carmel-By-The-Sea Custom Home](https://www.houzz.com/hznb/projects/carmel-by-the-sea-custom-home-pj-vj~5831152) - Location: Carmel, CA - Photos: 15 - Description: Custom Built Beach Cottage - [Menlo Park Transitional](https://www.houzz.com/hznb/projects/menlo-park-transitional-pj-vj~6005089) - Location: Menlo Park, CA - Photos: 17 - [Los Altos Hills Modern Addition and Remodel](https://www.houzz.com/hznb/projects/los-altos-hills-modern-addition-and-remodel-pj-vj~163940) - Location: Los Altos, CA - Photos: 12 - Description: Addition and Remodel of Eccletic House in Los Alstos Hills - [Alderbrook 2nd Story Addition](https://www.houzz.com/hznb/projects/alderbrook-2nd-story-addition-pj-vj~2514358) - Location: San Jose, CA - Photos: 8 - Description: 2nd story addition with Master Suite, whole house gutted and renovated with three new bathrooms, kitchen, and exterior upgrades - [Stanford University Historical Home](https://www.houzz.com/hznb/projects/stanford-university-historical-home-pj-vj~150983) - Location: Palo Alto, CA - Photos: 18 - Description: Historic Restoration of Stanford turn of the century French Tutor - [Menlo Park Addition](https://www.houzz.com/hznb/projects/menlo-park-addition-pj-vj~2370769) - Location: Menlo Park, CA - Photos: 9 - [Los Altos Addition and Remodel](https://www.houzz.com/hznb/projects/los-altos-addition-and-remodel-pj-vj~151327) - Location: Los Altos, CA - Photos: 5 - Description: Los Altos 1000 Square Foot addition and whole house remodel - [Sunnyvale Addition and Remodel](https://www.houzz.com/hznb/projects/sunnyvale-addition-and-remodel-pj-vj~5831186) - Location: Sunnyvale, CA - Photos: 30 - Description: 1000 Square Foot Addition and whole house remodel - [Normandy Place Remodel](https://www.houzz.com/hznb/projects/normandy-place-remodel-pj-vj~5831181) - Location: Los Altos Hills, CA - Photos: 7 - [1929 complete transformation mixing classic with modern.](https://www.houzz.com/hznb/projects/1929-complete-transformation-mixing-classic-with-modern-pj-vj~6444539) - Location: Palo Alto, California - Photos: 5 - Description: Whole house interior remodel with all new kitchen and bathrooms. Hardwood flooring and windows. https://www.paloaltoonline.com/news/2017/09/21/simply-modern-design-for-1929-colonial - [Rose Garden Primary Bedroom and Bath Addition](https://www.houzz.com/hznb/projects/rose-garden-primary-bedroom-and-bath-addition-pj-vj~6725144) - Location: San Jose, CA - Photos: 19 [See all 18 projects](https://www.houzz.com/professionals/general-contractors/monsen-collins-builders-pfvwus-pf~218490537) ## Ideabooks - [Janet Ferrare bathroom](https://www.houzz.com/ideabooks/151680921/list/janet-ferrare-bathroom) — 3 ideas - [Jean Tran Idea Book](https://www.houzz.com/ideabooks/130333181/list/jean-tran-idea-book) — 6 ideas [See all 2 ideabooks](https://www.houzz.com/ideabooks/users/monsencollinsbuilders) ## Community Q&A **Q: What is the name of the quartzite product on the countertops!** *(in Photo Questions)* A: White princes **Q: What are the counter tops?** *(in Photo Questions)* A: those are quartzite from all natural stone **Q: What is the tub deck/shower bench height?** *(in Photo Questions)* I love the way you integrated these two areas. Would love to know the height. Thank you. A: You are welcome, sorry it took me so long:) **Q: Tile** *(in Photo Questions)* Can you tell me what type of tile is on the floor? Is it crema marfil? Where was long octagon tile on the wall purchased? A: it is a marble, the tile was all sourced from a company in Chicago **Q: Love this sink** *(in Photo Questions)* Is this console sink custom? If not, where did you find it? It is awesome! A: it was purchased at saratoga plumbing in cupertino, CA **Q: Tile** *(in Photo Questions)* What is the tile surrounding the window wall A: That is white marble tile --- *Source: Houzz professional profile. Reflects the profile as of 2026-09-01.*