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Find Addition to existing structure builders in Antioch

Avatar for BEAR Remodeling Inc.
BEAR Remodeling Inc.
4.8(
34
)
Addition to Existing Structure - Build

Serving Antioch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Customers say: True professional

"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."
Outdoor Kitchen - Clayton
Outdoor Kitchen - Clayton
Outdoor Kitchen - Clayton
Weather Safe
Outdoor Kitchen - Clayton

+127

Response time9 hrs
9 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for BUILDERS GROUP & DESIGN INC
BUILDERS GROUP & DESIGN INC
5.0(
21
)
Addition to Existing Structure - Build

Serving Antioch, 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"Our bathroom was outdated and unattractive, so we wanted to hire a professional to help with the design and get the job done right.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

10 neighbors recently requested a quote
Avatar for SF Design Solutions, Inc.
SF Design Solutions, Inc.
4.9(
49
)
Addition to Existing Structure - Build

Serving Antioch, CA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

Welcome to SF Design Solutions, Inc.! We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n

Bathroom
Finished ADU Kitchen
Kitchen and Hallway
Bright ADU Kitchen
Window and Stucco

+78

Recommended by3%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Addition to Existing Structure - Build

Serving Antioch, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We decided to remodel our outdated bathroom, and McCormick Home Builders was a fantastic choice. Khaled and the team delivered high-quality work within the timeline and our budget. Every detail, from the tile work to the lighting, was beautifully done. They communicated well throughout, keeping us informed at every step, and the end result was truly a spa-like bathroom we can enjoy daily. We’d love to work with them again!"
.
.
.
.
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+1

Response time6 hrs
Recommended by17%of homeowners
Avatar for Cerletti & Kennedy Design-Build
Cerletti & Kennedy Design-Build
4.3(
109
)
Addition to Existing Structure - Build

Serving Antioch, 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
24 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 Antioch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Customers say: Quality work

"We hired Bear Remodeling to convert our garage into an ADU for my mom to live in, and they knocked it out of the park! They handled everything. The team added proper insulation, installed new windows for natural light, and created a small but efficient kitchen area. They even finished the exterior paint to match our house perfectly. The transformation is incredible. You'd never know it used to be a garage. It took about 8 weeks from start to finish, which was actually faster than we expected. If you need more living space but don't want to move, I'd recommend their garage conversion service without hesitation."
living room remodel
Wet bar
waterfall island
gray shaker style cabinets
kitchen island

+158

Response time12 hrs
Response rate98%
35 neighbors recently requested a quote
Avatar for Hagenbach Construction
Hagenbach Construction
4.3(
19
)
Addition to Existing Structure - Build

Serving Antioch, CA and surrounding areas

Approved

In business since 1982

Free estimates

Customers say: Quality work

"The finished product is nothing short of stunning. They have some incredibly talented craftsmen, and everyone that's been by so far is absolutely speechless! We plan to have them back for future projects. Remodeling is stressful and John & Amy worked diligently to address all concerns in a timely manner. We are very happy with the addition to our home."
Living Room
Downtown Room Addition - Livermore
Pleasanton Kitchen Remodel
Casita/ADU Above Garage
Danville Kitchen Remodel

+375

Response time1 day
5 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Build Atlas
Build Atlas
5.0(
13
)
Addition to Existing Structure - Build

Serving Antioch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"I couldn?t be happier with the roofing work completed by Build Atlas. As a first-time homeowner, I was nervous about taking on such a big project, but even from the first consultation, the team made everything so easy and stress-free. They were patient, thorough, and explained all of my options clearly without any pressure, which I appreciated. The crew showed up exactly when they said they would, kept the site clean, and finished ahead of schedule. Not only does my new roof look amazing, but I feel confident knowing it?s going to last. I?ve already recommended them to a few friends."
Updated Tile Flooring
Updated Vanity & Fixtures
Added Shelving & Accessories
Newly updated kitchen
Outdated Kitchen

+19

Response time5 hrs
Recommended by76%of homeowners
Avatar for Kuertz Construction
Kuertz Construction
4.9(
18
)
Addition to Existing Structure - Build

Serving Antioch, CA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"We worked with Kuertz construction and Nate on a Kitchen, Family room and Backyard remodel project. Nate was excellent in consulting with us and providing creative ideas for the redesign to keep us on budget. The work was of excellent quality, and was done on time and the attention to detail certainly stands out. Overall, Nate was great to work with and we would highly recommend him. We have gone back to him for several smaller projects and have referred him to our friends."
Modern Kitchen and Patio
Modern Kitchen and Patio
Modern Kitchen and Patio
Modern Kitchen and Patio
Modern Kitchen and Patio

+17

3 neighbors recently requested a quote
Recommended by88%of homeowners
BE&D Builders
3.8(
4
)
Addition to Existing Structure - Build

Serving Antioch, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"My project was a major renovation of a 1985 Victorian home that suffered a devastating fire. Erik and his team did a beautiful job following my architect’s plans, and was also proactive about calling out necessary changes. He was very patient with all of my changes and very specific requests, and was a very calming influence when unexpected surprises inevitably arose during construction. The final results are beautiful, and an historic house has been saved. I look forward to working with Erik again in the future!"
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Remodeling - Kitchen & Bathroom Project
Remodeling - General Project

+11

2 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for addition to existing structure building service projects in Antioch, 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 Antioch, 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.