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ADU Contractors in Boulder County

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Denver / 50 mi
Accessory Dwelling Units
1 – 15 of 389 professionals
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389 Professionals

Featured Reviews for ADU Contractors in Boulder County

Homestead Home Builders
ADU Contractors in Boulder County
Average rating: 5 out of 5 starsAugust 1, 2020
“It is our pleasure to recommend Homestead Homes and Services Inc.! Herman and Phil replaced our deck this spring and we found them personable and professional. They completed the project on time and on budget and their design skills, along with working with the City of Fort Collins thru the design and permitting process was invaluable! We look forward to using them on our next home improvement project!”
Mark Hammer Construction LTD.
ADU Contractors in Boulder County
Average rating: 5 out of 5 starsFebruary 12, 2019
“I enjoyed working with Mark & his crew. Besides being professional, their work was perfection. They showed up on time and stuck with the job until completion.”
Clifford's Custom Remodeling LLC
ADU Contractors in Boulder County
Average rating: 5 out of 5 starsOctober 17, 2017
“Kevin repaired our mailbox, which was about to fall off its post. He pulled up two steel stakes that I had driven into the ground with a sledge hammer 12 years ago, and no one else could pull up. He adjusted some doors that had been messed up when the house started sagging a little, because we had a bad builder originally, who left a support out of one end. He removed a torn screen from the screen door in front, after repairing that door so it closes and latches correctly again, and he's getting that re-screened for us. And he's working up bids for some more work. Honest, affordable and competent! The 3 things we value most in a tradesman like this!”
James Lyon General Contracting LLC
ADU Contractors in Boulder County
Average rating: 5 out of 5 starsAugust 5, 2015
“I had numerous items that I needed completed. Jim completed everything on time, within the estimate he had provided and did an excellent job. If I noticed anything that I had a question about or wanted adjusted he did it without any issue or complaint and if it impacted my budget or timeline he let me know. He was also very helpful in coming up with suggestions and alternatives on how things could be done. I had him work on my barn doors - 2 doors that were on the same track. The barn doors had been installed by someone else and when the doors were together they didn’t hang straight and were only wide enough to just cover the opening, the doors were missing a door stop in the middle, so unless you stopped the doors exactly in the middle there would be a gap on one side or the other. They had also installed guides on the bottom that I did not like as they stuck out into the opening and were screwed to the hardwood floor. Jim added sections to both sides of both doors, so that it looked like it was part of the pattern of the door and was meant to be there. The addition of the sections provided the coverage for the opening that I wanted. He put in stops for both the middle and the end so that the doors would properly stop. He took off the old guides on the bottom and installed guides that were attached to the wall and didn't stick out into the opening. He also filled in the holes in the hardwood floor so that I can't tell where they had been and leveled the doors so that they hung straight. I am now very happy with my barn doors! He also installed knobs and handles on all my cabinets and drawers in the kitchen, laundry room and bathrooms. He listened to what I was looking for, offered me a couple of suggestions on the style and then installed them and they are great. He moved some towel racks and he did a great job. I can't tell on the wall where the towel rack used to be. I was very impressed with how well everything was done and would definitely use him again.”
Veron Builders, LLC
ADU Contractors in Boulder County
Average rating: 5 out of 5 starsDecember 6, 2019
“I hired Veron Builders for a complete remodel on my north Boulder Condo. Tom and his team were beyond excellent. They did the job in time and within the budget discussed. Tom has also done a great deal of extra work beyond the scope of the job for no extra charge. I have recommended Veron Builders to friends and anyone I meet. I can’t say enough positive things about this company.”
Seawolf Development
ADU Contractors in Boulder County
Average rating: 5 out of 5 starsFebruary 1, 2022
“Bryan has done some exterior work on our 1930s house that I couldn't find anyone else who would even consider the job. His team was quick, efficient, and friendly. We enjoyed the experience so much that we had him do a full kitchen remodel. The kitchen project was affected by covid and supply chain issues, so we had some delays and had to make some different choices due to price fluctuations, but Bryan was very communicative and honest during the process. He and his team find ways to get things done rather than take the easy way out or make excuses. The kitchen is beautiful and functional. I strongly recommend Seawolf and Bryan for any interior or exterior work you might be considering.”
Factor Design Build
ADU Contractors in Boulder County
Average rating: 5 out of 5 starsMay 12, 2016
“Factor Design Build is the type of reputable company that makes things happen. In the world of construction, there are always challenges and deadlines. This team of professionals has a great ability of pulling together their resources to take action quickly. They take problems and turn them into opportunities that work well for the construction team, design team and home owner. I will continue to work with this team as they create beautiful, thoughtful and creative design projects.”
Natural Construction
ADU Contractors in Boulder County
Average rating: 5 out of 5 starsJune 11, 2013
“Natural Woodworkers completed a full remodel of our home including exterior and interior elements. We enthusiastically recommend them! They gave us a new kitchen, bathrooms, hardwood floors, tile work, custom cabinets and all the details perfectly done to my wife's quite exacting standards. Let me also mention the pergola, siding and important fixes our 40 year old home needed. Now our home is like new. The former owner drove by one day and begged us to give him a tour. He was so impressed that he pleaded to have us show it to his wife later that day! Aside from the excellent work these craftsmen do, you will find they are just plain great people. We actually missed them when they were finished. I whole heartedly recommend these guys. Come see my place if you think I'm exaggerating.”
Resort Construction
ADU Contractors in Boulder County
Average rating: 5 out of 5 starsJune 30, 2020
“Tom (Resort Construction) has done extensive remodeling projects for five years on my house. I would not use anybody else. His workmanship is excellent and he is reliable and honest. His decades of experience and old-school values are apparent in all that he does. Skills include design, creative solutions, and all facets of construction. He thrives though on beautiful finish work (woodworking, railings, trim, and tile). You won't be disappointed.”
Constructive Alternatives
ADU Contractors in Boulder County
Average rating: 5 out of 5 starsJuly 12, 2023
“I work for a manufacturer of one of the products that Constructive Alternatives utilize to help their customers be more energy efficient. Nichole and Davide have been a joy to work with. They took advantage of all of the training resources that we have to offer and brought lots of great questions to us. It's obvious that this is a company that really does their back-end research and due diligence. Wish I lived a little bit closer to Boulder (for lots of reasons haha) because I'd happily have them build and design my net-zero dream home.”
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ADU Contractor FAQs
Just answer a few questions to get matched with a local ADU Professional.
Or browse through the list of trusted ADU Professionals in Boulder County on Houzz: See Boulder County ADU Professionals’ profiles, dive into their work photos and check out customer reviews.
  1. Reach out to the pro(s) you want, then share your vision to get the ball rolling.
  2. Request and compare quotes, then hire the ADU Professional that perfectly fits your project and budget limits.
The most popular ADU Professional Services in Boulder County are:
  • ADU Design and Planning
  • ADU Construction and Installation
  • ADU Conversion
  • ADU Permitting and Code Compliance
  • Accessory Dwelling Unit Architectural Services
  • ADU Interior Design
  • ADU Consultation and Project Management
There are 415 ADU Professionals, registered on Houzz in Boulder County.

An accessory dwelling unit (ADU) is a separate living space that can be added to your property. It functions as an additional dwelling on the same land where your main home is located. ADUs have their own amenities and entrance, providing a self-contained living area. Unlike a traditional home, an ADU cannot be sold separately and is considered part of the same property.

ADUs are subject to specific zoning regulations and building codes in Boulder County. These regulations determine where and how an ADU can be constructed, ensuring compliance with local laws and requirements. It’s important to consult with local authorities or a professional contractor who is familiar with ADU regulations in your area to understand the specific legal differences and ensure your ADU meets all necessary criteria.

Consider these options for cost-effective ADU:
  1. Prefabricated ADUs: Affordable and easy to assemble, they’re a practical choice. Many prefab ADUs cost under $100,000.
  2. Traditional Construction: Work with an ADU contractor to find budget-friendly options and make smart choices.
Tips for cost-effective ADU construction:
  1. Define your needs: Determine the purpose of your ADU, whether it’s for family, rental income, or a home office.
  2. Consult a contractor in Boulder County: Their expertise can help with cost-effective materials, designs, and planning.
  3. Prefabricated components: Consider using prefabricated elements like cabinets or bathroom fixtures to save time and money.
  4. Explore financing options: Look for ADU-specific loans or programs to help cover costs.
Ensure compliance with local regulations and seek professional advice. A knowledgeable contractor can make the process smoother and cost-effective.
Why Hire Accessory Dwelling Units on Houzz?
389Local Pros on Houzz Who Serve Boulder County, CO
1M+Total Number of Reviews Left by Homeowners
The cost to build a pool in Boulder County, CO can vary widely based on factors such as size, type, and location. For detailed cost estimates, check
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