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Top-Rated Addition to existing structure builders in Vallejo - Updated Nov 2026

Avatar for BUILDERS GROUP & DESIGN INC
BUILDERS GROUP & DESIGN INC
5.0(
21
)
Addition to Existing Structure - Build

Serving Vallejo, CA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Our bathroom was outdated and unattractive, so we wanted to hire a professional to help with the design and get the job done right. We found Builders Group on Angie, and Mike came out to give us a quote. What set Mike apart from the others was his attention to detail and how great he was with people. We decided to hire him, and we were happy with our choice from the very beginning."
South San Francisco
South San Francisco
South San Francisco
South San Francisco
South San Francisco

+139

5 neighbors recently requested a quote
Avatar for Oak Creek Canyon Builders
Oak Creek Canyon Builders
4.9(
11
)
Addition to Existing Structure - Build

Serving Vallejo, CA and surrounding areas

Approved

Customers say: True professional

"The service was perfect, they were easy to work with, they were on time, worked clean & courteous. provide info and feedback on what things needed to be done. everything was great, they did a good job. Worked on timely adherence to the estimate was perfect."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+17

4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Addition to Existing Structure - Build

Serving Vallejo, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."
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+1

Response time6 hrs
Recommended by17%of homeowners
Avatar for Waters Construction Co.
Waters Construction Co.
5.0(
5
)
Addition to Existing Structure - Build

Serving Vallejo, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Michael and team did such an amazing job on our bathroom remodel. They took our tiny, dysfunctional bathroom and turned it into a true master bathroom oasis in a short amount of time during the holiday season. When they had the space down to the studs, Michael sat down with us and discussed in detail the best possible use of the space and we couldn’t be happier with our final decision after going through the options. Michael was great at communicating and we still stay in touch to this day, which we truly appreciate. Great team who does great work and I will absolutely be giving Waters Construction a call for any and all future home renovations. I’ll let the pictures do the rest of the talking."
Kitchens
Kitchens
Kitchens
Kitchens
Kitchens

+14

Response time6 hrs
Response rate100%
Avatar for Cerletti & Kennedy Design-Build
Cerletti & Kennedy Design-Build
4.3(
109
)
Addition to Existing Structure - Build

Serving Vallejo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1987

Free estimates

Warranties offered

"Cerletti & Kennedy recently renovated our kitchen and dining area, and the end result is exceptional. In addition to relocating HVAC and water heater, our project required structural work. All of these things, as well as our daily questions and concerns, were handled by Matt and Robert et. al. with professionalism and patience."
in the beginning
 Finished!
Wish I had a good camera
 Eat in kitchen, new wood flooring, beam ceiling
 Chefs table

+45

Response time3 days
34 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Bear Remodeling, Inc.
Bear Remodeling, Inc.
4.8(
24
)
Addition to Existing Structure - Build

Serving Vallejo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Customers say: Quality work

"We are so happy we chose BEAR Remodeling Inc for our kitchen! From the design to the final touches, everything was done with extra care and attention to detail. The team was friendly, professional, and always kept us updated. We would definitely recommend them to anyone planning a remodel."
living room remodel
Wet bar
waterfall island
gray shaker style cabinets
kitchen island

+158

Response time12 hrs
Response rate98%
34 neighbors recently requested a quote
Avatar for Build Atlas
Build Atlas
5.0(
13
)
Addition to Existing Structure - Build

Serving Vallejo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"If you’re thinking about getting a new roof, definitely go with Build Atlas. I’m in my mid-20s and had no idea where to even start, but a neighbor recommended them and I’m so glad that they did! The whole team was super friendly, down-to-earth, and made the entire process way less stressful than I imagined. They showed up when they said they would, kept everything clean, and finished faster than I expected. Plus, the roof looks fantastic — it’s like my house got a facelift! It’s rare to find a company that’s this easy to work with!"
Updated Tile Flooring
Updated Vanity & Fixtures
Added Shelving & Accessories
Newly updated kitchen
Outdated Kitchen

+19

Response time5 hrs
Recommended by76%of homeowners
Patton Construction
4.3(
25
)
Addition to Existing Structure - Build

Serving Vallejo, CA and surrounding areas

Approved

In business since 1982

Free estimates

Customers say: Quick response

"Found Cal thru home advisor. One of the best decision I ever made . Cal and his crew was great .I had 2 bathrooms done and thought they would do one at a time they worked on both the same day and did an excellent job ,Cal went above and beyond. He took me to three different places just to make sure I was satisfied, His prices are very fair as a matter of fact I think a little more than fare, If and when I need more work only one place to call Patton Construction"
custom home hall bath
custom home dining room
custom home family room
custom home
custom home

+9

Response time2 days
3 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Grade A Builders
Grade A Builders
5.0(
1
)
Addition to Existing Structure - Build

Serving Vallejo, CA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

Drywall Dynamics is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business. \n \n \nFamily Owned and Operated \n \n36 years of experience. \n \nemergency Hours available upon request

Response time7 hrs
Response rate87%
2 neighbors recently requested a quote
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FAQs for addition to existing structure building service projects in Vallejo, CA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Vallejo, CA homeowners’ guide to addition to existing structure building services

From average costs to expert advice, get all the answers you need to get your job done.