---
title: "GUILTEC LLC — General Contractors | Houzz"
canonical_html_url: https://www.houzz.com/professionals/general-contractors/guiltec-llc-pfvwus-pf~788610356
markdown_url: https://www.houzz.com/md/professionals/pf~788610356.md
entity_type: LocalBusiness
business_name: "GUILTEC LLC"
category: ["General Contractors"]
image: https://st.hzcdn.com/fimgs/a533052e0e10a277_8664-w400-h400-b1-p10--.jpg
address: "208 Stamford Avenue, Stamford, Connecticut 06902, United States"
latitude: 41.0602
longitude: -73.5445
phone: "(203) 912-9224"
website: http://www.guiltec.com
rating: 5
review_count: 73
best_of_houzz_awards: 4
followers: 195
last_updated: 2026-08-13
---

# GUILTEC LLC

Original Houzz profile: [GUILTEC LLC](https://www.houzz.com/professionals/general-contractors/guiltec-llc-pfvwus-pf~788610356)

## Professional summary

- **Primary category:** General Contractors
- **Location:** Stamford, CT
- **Serves:** Stamford, North Stamford, Norwalk, East Norwalk, Greenwich, Westport, Darien, New Canaan, Wilton, Riverside, Cos Cob, Old Greenwich, Byram, Mamaroneck, Port Chester, Poundridge, Purchase, Rye, Rye Brook
- **Houzz rating:** 5.0 out of 5 (73 reviews)
- **Best of Houzz:** 4 awards (2014–2018), for Service.

## About

### Houzz Badges

- Star Houzzer
- Recommended on Houzz
- 1,000 Ideabook Saves

Guiltec Development is a construction company managed by skilled Master Carpenter Denis Guilfoyle. Guiltec Development has been involved in the Interior and Exterior construction of high end residential and commercial projects – Custom Homes, Additions, Renovations & Bars and Restaurants. In all these areas, Guiltec Development has a reputation as a quality Company of superior value which has been involved in some very impressive interior and exterior trim projects. 

The business combines the capabilities of an experienced General Contractor & Home Builder with the knowledge and insight of the best professionals. Our two greatest assets are our people and our integrity. Our competitive advantage stems from our reputation as well as the success from so many of our past projects.

Above all we are dedicated to our customers and projects. Our desire to exceed the expectations of our clients has made us into the leading general contractor of high end bar/restaurant, residential construction & interior/exterior trim.

In all these areas, Guiltec Development has a reputation as a quality General Contractor and Home Builder of superior value. With Guiltec Development, you get the best of both worlds: local home builders that understand your needs and are committed to the work they create and construct.

The secret to Guiltec Development success is the ability to create a quality project on time and in budget. That philosophy of integrity, responsibility and quality has been the true foundation and design and construction of every project.

### Services Provided

- Home Remodeling
- Kitchen Remodeling
- Bathroom Remodeling
- General Contracting
- Home Additions
- Custom Homes
- New Home Construction
- Home Extensions
- Deck Building
- Basement Remodeling
- Garage Building
- Porch Design & Construction
- Foundation Construction
- Demolition
- Wine Cellar Installation

### Areas Served

- Stamford
- North Stamford
- Norwalk
- East Norwalk
- Greenwich
- Westport
- Darien
- New Canaan
- Wilton
- Riverside
- Cos Cob
- Old Greenwich
- Byram
- Mamaroneck
- Port Chester
- Poundridge
- Purchase
- Rye
- Rye Brook

### Typical Job Cost

$10,000 - 5,000,000

## Business Details

| Field | Value |
| --- | --- |
| Business Name | GUILTEC LLC |
| Address | 208 Stamford Avenue, Stamford, Connecticut 06902, United States |
| Phone | (203) 912-9224 |
| Website | http://www.guiltec.com |
| License Number | HIC0623494  & NHC0012533 |
| Followers on Houzz | 195 |

**Social profiles:**
- Facebook — https://www.facebook.com/GuiltecDevelelopment

## Contact

- **Houzz profile:** [GUILTEC LLC](https://www.houzz.com/professionals/general-contractors/guiltec-llc-pfvwus-pf~788610356)
- **Website:** http://www.guiltec.com
- **Phone:** (203) 912-9224

## Credentials

**Certifications & Awards**
- ~ Best of Houzz Service 2014, 2015 & 2016
- ~ Best Facade Design Stamford CT
- ~ Business persons of Year, New Haven

- **Best of Houzz:** 4 awards (2014–2018), for Service.

**Affiliations**
- [National Association of Home Builders](https://www.houzz.com/professionals/schools-and-organizations/national-association-of-home-builders-pfvwus-pf~562065019)
- [HBRA of Fairfield County Inc.](https://www.houzz.com/professionals/schools-and-organizations/hbra-of-fairfield-county-inc-pfvwus-pf~915393152)
- [HBRA of Connecticut](https://www.houzz.com/professionals/schools-and-organizations/hbra-of-connecticut-pfvwus-pf~790835092)

## Reviews

**Overall rating: 5.0 out of 5 — 73 reviews**

### Reviews

**★★★★★ — Brooke Dabrowski, Jan. 2020**

> After a house fire, we needed to rebuild our home on the original site. Our experience with Denis and Guiltec could not have been better. They are real professionals with exacting quality standards and incredible resources for the various trades. They stayed on schedule, and quickly answered every question and request that we had. Denis had some wonderful suggestions that saved money on the project and often improved the design. Denis and his team became real partners in our project. Although we are happily settled for now, I look forward to working with them on another big project in the future.

**★★★★★ — Christina McAleer, Jan. 2020**

> My husband and I hired Denis and his Team to build our new construction 6,000 sq. ft. home in Fairfield County, CT.  Denis and his Team were outstanding in their attention to every detail:  costs, design, materials, and time management.   The focus was always to keep us happy, and Denis and his Team did just that.   Our day-to-day Supervisor, Noel, was fantastic.  He attended to every and any concern we had in a kind, professional, and timely manner.  We could not be happier!  We have our dream home thanks to the extraordinary craftsmanship and passion of Denis Guilfoyle and his Team.

**★★★★★ — Rocco and Belle Alianiello, Jan. 2019**

> Denis and his team couldn't have been more professional.  The renovation was finished exactly when they said it would be.  They were even done a few weeks early.  The team was hands on with all of the subcontractors and made sure the job was done correctly.  The recommendations during the building process were always the best value for the dollar.  The cost of the project came in exactly where it was first estimated.  If you need any job done to enhance the value of your home, big or small, Guiltec is the company you should hire.  Since our project we have recommended Guiltec to family and friends all with the same satisfying results.

**★★★★★ — Caroline whitman, Aug. 2018**

> We hired Denis to help us with a flood in our house. Just the basics: dry out, fix walls and ceiling, etc. Because of Denis' creativity and genuine skill, he had vision which went beyond mere repairs and helped us transform a beautiful house that I was plenty sick of, into a home I don't want to leave for years. He is very busy, but if you want someone who is a genuinely gifted designer and craftsman, with a top-notch building company behind him, he is your man. We highly recommend him and hope to work with him again in the future.

**★★★★★ — gracieann22, Oct. 2017**

> Denis and the Guiltec team had the vision to completely transform my tiny, cramped house. Denis thinks of things I had never considered.  Further, the attention to detail and the thoroughness was beyond what I could have imagined.  I completely trust Denis and I love the work he did to my house.  I went from considering selling to never wanting to leave!

**★★★★★ — Gad Lavy, Oct. 2017**

> Guiltec just completed a complicated window and door replacement project at our home. They essentially replaced the entire back of our house.
> The original windows and frames were leaking and we were looking for a competent builder who is experienced in this area.
> Dennis, the owner, was promp, pleasant and very professional.
> His assessment of the problem and his proposal were reasonable and accurate.
> The job was completed promptly and with minimal inconvenience to us.
> We were extremely impressed with the quality of work, reasonable pricing and personal attention we received.
> The workers made an effort to keep the work area clean and did a great job cleaning up at the end.
> Very professional.
> Highly recommended.

**★★★★★ — mojorun, March 2017**

> Denis and his team at Guiltec did an amazing job completely renovating two full bathrooms for us. He was able to help guide us through the entire process and provide great tips on how to stay within our budget with high end finishes. He applied his experience from working on luxury homes to our project and helped us maximize our investment.
>
> Guiltec's service level is personal and best in class. We have allergies and each night he made sure that all areas were completely sealed off to contain dust etc.
>
> We would absolutely use Guiltec again and recommend them to anyone dreaming of a remodel or building a house.

**★★★★★ — Caroline Butler, Feb. 2017**

> Denis and team worked on a year long project in our home.  They did a great job. What differentiates Denis from just being a good builder is his great ideas and flexibility to work with you on design ideas.  He becomes truly passionate when you engage him in the creative side and has some really great ideas. We had loose ideas on what to do with our kitchen and he added some ideas that made all the difference. he also really encouraged us to put a 'funky stairs' in place which we were extremely nervous about as it pushed us over out budget BUT it turned out to be the best idea as its really made our home special and we love it.  Thanks Denis and team.

**★★★★ — dunschuld, Jan. 2017**

> We have worked with Guiltec LLC on a number of projects in Fairfield County
>
> We offer propane Services inclusive of design, and installation of propane storage and gas lines
>
> The team at Guiltec is professional, courteous, focused on productivity and excellent end results
>
> We worked with Denis and Niall on design layout, reviewing alternate locations and on coordinating construction with the subcontractors involved
>
> There was always an eye for the best design solutions
>
> Jobs were completed on schedule
> and the team was great to work with
>
> I recommend them highly
>
> David

**★★★★★ — jodavey7, Jan. 2017**

> Denis repaired extensiive water damage from a burst pipe 2 winters ago when we're not living in our house. He had to rip out walls, flooring, ceiling, a toilet and more and make the house look nice. He managed to do this in an outstanding 2 weeks so we could get the house back on the market asap. On another job he tore out & replaced our deck with an lpe mahogany deck, complete with concealed screws and handrails.   Has great rapport with his crew and always full of fun.

**★★★★★ — David Zidek, Jan. 2017**

> Denis is truly an accomplished professional with impeccable attention to detail and Guiltec, llc, from any perspective is the best builder. A builder who is trustworthy, honest and loyal to his customers.

**★★★★★ — Andrew Rahrig, Jan. 2017**

> Denis and Naill performed work on my home for six weeks starting in May. From start to finish I knew I could trust them to do the job right and capture (and enhance!) the vision for the project. They are creative and constantly looked for ways to optimize the space, the budget, and functionality of my home without sacrificing quality. For example, they used old floor boards in my attic to create a sliding door and on my own I would have never thought of re-purposing that wood in that manner. While having construction in your home is stressful, every Guiltec employee was willing to take extra time to explain certain aspects of the project and provide input on important decisions. Their advice was always spot-on and never did I feel pressured to do something I didn't want to. When my next project comes along it will include Guiltec simply because I trust them and I know the work will be done with attention to every detail.  I usually don't get online and do reviews, but I am happy to do a review for this company. Pictures below show my attic going from nothing to something incredible!

## Selected projects

- [Ocean Drive East Waterfront Deck](https://www.houzz.com/hznb/projects/ocean-drive-east-waterfront-deck-pj-vj~1350829)
  - Location: Stamford, CT
  - Photos: 36
- [Rustic Kitchen](https://www.houzz.com/hznb/projects/rustic-kitchen-pj-vj~1398381)
  - Location: Not specified
  - Photos: 10
- [Stamford Basement to Top Floor Renovation](https://www.houzz.com/hznb/projects/stamford-basement-to-top-floor-renovation-pj-vj~87306)
  - Location: Stamford, CT
  - Photos: 7
- [Shippan Designer Home](https://www.houzz.com/hznb/projects/shippan-designer-home-pj-vj~87193)
  - Location: Stamford, CT
  - Photos: 17
- [37 Sound Ave](https://www.houzz.com/hznb/projects/37-sound-ave-pj-vj~773885)
  - Location: Stamford, CT
  - Photos: 15
- [Stamford Transformation - Whole Home Remodel](https://www.houzz.com/hznb/projects/stamford-transformation-whole-home-remodel-pj-vj~334596)
  - Location: Stamford, CT
  - Photos: 18
- [Rogers Road Remodel](https://www.houzz.com/hznb/projects/rogers-road-remodel-pj-vj~1408851)
  - Location: Hampton, CT
  - Photos: 32
- [Local Portfolio Projects](https://www.houzz.com/hznb/projects/local-portfolio-projects-pj-vj~87187)
  - Location: Not specified
  - Photos: 64
- [Westport Home Remodel](https://www.houzz.com/hznb/projects/westport-home-remodel-pj-vj~1310864)
  - Location: Westport, CT
  - Photos: 36
- [Shippan Ave Master Suite](https://www.houzz.com/hznb/projects/shippan-ave-master-suite-pj-vj~333037)
  - Location: Stamford, CT
  - Photos: 19
- [Stamford Waterfront Renovation](https://www.houzz.com/hznb/projects/stamford-waterfront-renovation-pj-vj~1381231)
  - Location: Stamford, CT
  - Photos: 33
  - Description: Photos say it all!
- [Movie Room and Kitchen Upgrade](https://www.houzz.com/hznb/projects/movie-room-and-kitchen-upgrade-pj-vj~333058)
  - Location: Stamford, CT
  - Photos: 6
- [Stamford Ave](https://www.houzz.com/hznb/projects/stamford-ave-pj-vj~461536)
  - Location: Stamford, CT
  - Photos: 18
- [Kitchens](https://www.houzz.com/hznb/projects/kitchens-pj-vj~87218)
  - Location: Not specified
  - Photos: 36
- [Closets](https://www.houzz.com/hznb/projects/closets-pj-vj~87297)
  - Location: Not specified
  - Photos: 5
- [Sea Beach](https://www.houzz.com/hznb/projects/sea-beach-pj-vj~483657)
  - Location: Not specified
  - Photos: 9
- [Westport Basement & Wine Cellar](https://www.houzz.com/hznb/projects/westport-basement-and-wine-cellar-pj-vj~668559)
  - Location: Westport, CT
  - Photos: 10
- [Greenwich](https://www.houzz.com/hznb/projects/greenwich-pj-vj~629067)
  - Location: Greenwich, CT
  - Photos: 8
- [Ocean Drive Post & Beam](https://www.houzz.com/hznb/projects/ocean-drive-post-and-beam-pj-vj~332981)
  - Location: Not specified
  - Photos: 9
- [Projects currently working on!](https://www.houzz.com/hznb/projects/projects-currently-working-on-pj-vj~436580)
  - Location: Not specified
  - Photos: 10

[See all 36 projects](https://www.houzz.com/professionals/general-contractors/guiltec-llc-pfvwus-pf~788610356)

## Ideabooks

- [Bathrooms](https://www.houzz.com/ideabooks/120313773/list/bathrooms) — 8 ideas
- [Bedrooms](https://www.houzz.com/ideabooks/121141363/list/bedrooms) — 17 ideas
- [Living Rooms](https://www.houzz.com/ideabooks/121141905/list/living-rooms) — 1 idea
- [Outdoor Spaces](https://www.houzz.com/ideabooks/120313738/list/outdoor-spaces) — 2 ideas
- [Kitchens](https://www.houzz.com/ideabooks/120313733/list/kitchens) — 2 ideas
- [Custom Built-Ins](https://www.houzz.com/ideabooks/120313789/list/custom-built-ins) — 1 idea
- [Windows & Doors](https://www.houzz.com/ideabooks/120313757/list/windows-doors) — 1 idea
- [dendenden's ideas](https://www.houzz.com/ideabooks/567004/list/dendenden-s-ideas) — 138 ideas

[See all 8 ideabooks](https://www.houzz.com/ideabooks/users/guiltecdevelopment)

## Community Q&A

**Q: Did this project require extending exterior wall?** *(in Photo Questions)*

A: Hi, Yes Where the fridge is a small addition. It worked out so well, One of our favorites!

**Q: Where is the hardware from?** *(in Photo Questions)*

A: I believe there from RH (The Dillon Pull)
http://www.restorationhardware.com/catalog/category/products.jsp?categoryId=cat1512023

**Q: Hi, Amazing Island, What is the Material used for the Counter Top,** *(in Photo Questions)*

Is that one Solid Slab?

A: Hi 
Thank you, It really came out amazing.
The Material on the Counter Tops was Ceasar Stone \#2003. We made the Island Look beefy by adding another piece to the edge, we had it fabricated in a way that you can not see a joint along the edge, while keeping the modern Pencil edge look.

**Q: What is the color on the door, has anyone found out? Beautiful!!** *(in Photo Questions)*

A: What color is the door, Its amazing.

**Q: Great beams/trusses!  Are they solid timbers?  Species?  Stain brand/color?** *(in Photo Questions)*

A: That ceiling is amazing!

---

*Source: Houzz professional profile. Reflects the profile as of 2026-08-13.*