How much do addition contractors typically cost?
- Santa Rosa, California Average$159,166
- Typical Range$35,000 - $275,000
- Low End - High End$35,000 - $275,000

Remodeling Bathrooms, Garage Building, Handyman Projects , and 2 more
"Jason and his crew were great and made the whole experience quick and easy! I had them fully remodeled my kitchen - floors, cabinets, windows, countertops, and put on a good layer of paint. Will use his service in the future!"
4EAD13B3B5C9E15BD3F1172F3A0CB83F68D9B7DAB1BD2D5895C7F395BC4C840C 6. in July 2026

"GREAT WORK GREAT COMMUNICATION. Jay listened to our needs and wants, gave us the right price and delivered on time when it came to completing a very nice master bath remodel for us. Thank you Jay!! ( we did not feel like we were juggled in between other customers which is a huge plus for us)."
B6A8193F5BDA341EF44444AAD719348BEC8A8CE06FE06BB5F4478B2BF558D65E D. in August 2026
Home Improvement
"I had 2 bathrooms with water damage which needed remodeling. Michael, the owner of D S Builders, was very easy to work with. From the start, he was helpful in directing me to the places I would need to obtain the necessary supplies, i.e. tile, fixtures, lights, toilets, bathtub, ect. His paperwork was organized and specific to the time the work would take, when payments were due and the order the work would be done. He is prompt, polite and very detail oriented and he managed his sub-contractors without issue. The job site was always cleaned up at the end of everyday. He was always ready to discuss the progress, problems or alternate ways to complete the work. He is a very good communicator; and he made sure we were always on the same page. Furthermore, the quality of the work performed was outstanding! I could not have wished for a more perfect outcome! I love both my new bathrooms, and I would hire this company again in a minuet to compete any other projects."
Kitty K. in June 2024
Siding Repairs, Additions, Painting , and 1 more
"I hired them to do pest repair and paint the outside of my house as I was prepping for a sale. The quality of the work was excellent. I was informed at every step if something additional needed repair and given options. The paint job was superior. They let me know when the were coming, always showed up on time and didnâ t leave until the work was done. I highly recommend their company."
Sandy J. in April 2023
Bathroom Remodels, Unique Situations, Kitchen Remodels
"He is great, have been using him for many years. He is a real pro in what he does. I have recommend him to others, they have called me back, said that he was wonderful."
Jim B. in November 2009
Remodeling
"Patrick's prompt response to my inquiry, his written estimate and contract, start and completion of work was by far the best I have received in Oregon. His leadership skills with his crew was very courteous and thoughtful. When I requested a couple of changes he was upfront on the cost and never complained. I would recommend him highly and would definitely contact him again for future projects."
Sharon B. in October 2024
"John was wonderful to work with. The work involved turned out to be a lot. His quote was very reasonable and he more than earned it! John is a perfectionist. Every detail was finished to perfection. Our tastes were similar and I got exactly what I wanted. The people he hired to do the plumbing and turn an old yellow bathtub to gleaming white were also excellent. I am thrilled with my new shower! I highly recommend John Cutrufelli, Bay Builders Inc."
BD4D9CD01269099966516A57322485A5940A66784CB9A6432563B69DF9208F47 4. in June 2026
"The jobs were done in a timely manner and The workmanship was excellent along with professionalism during each project. I would recommend Hilario Construction to anyone wishing to have excellent service with all projects."
DCC0EA6DA87C1928DBBC48524C7F3576D5E93007B7ECDDCF16FBDEB8A80C01FE D. in April 2026
Doors (Exterior) - Install or Replace, Find a Custom Home Builder, Doors (Interior) - Install or Replace
"We hired Brian Byrne and his team for several upgrade projects. They updated the siding and trim on nearly half of our house which came out perfect. We also wanted a custom farmhouse look with stained wood beams above our garage and front windows, he far exceeded our expectations and we get constant compliments from our neighbors. After this project we hired them again to replace two sliding glass doors that were outdated and they came out great! I would highly recommend them and plan on hiring them again in the future. Bryan is professional, always on time and easy to work with."
Rick R. in August 2021
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Any good contractor will answer these questions, and most will appreciate dealing with a client that takes such an active interest in finding good service. On the other hand, if a contractor gives you a hard time with these questions, you probably want to find someone else.
Santa rosa Addition & Remodeling Contractors are rated 4.8 out of 5 based on 64 reviews of 64 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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