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Find Addition to existing structure builders in Antioch

Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
4.9(
67
)
Addition to Existing Structure - Build

Serving Antioch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"I had an amazing experience with Be home Remodeling, I want to thank Josh Zack's and his team of dedicated professionals for the amazing job they did on my master bathroom. Josh?s dedication and communication was crucial in ensuring the job was done quickly and professionally. He was is always available and provided quick response! We decided to do a bathroom remodel a couple of weeks ago. The entire process was done properly and as described to me at the start. Project was on schedule and went extremely smooth. The workers and staff were really professional, polite and easy to work with. I highly recommended BE Home Remodeling and specifically Josh Zack."
full house remodeling
full house remodeling
full house remodeling
full house remodeling
full house remodeling

+31

Response time1 day
Response rate99%
630 neighbors recently requested a quote
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

"Bear Remodeling Inc helped us with a room addition, and the whole experience was smooth and stress-free. The team was respectful, hardworking. The new space fits perfectly with the rest of our home. We are beyond pleased and highly recommend Bear Remodeling Inc for quality work and great service!"
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"Our bathroom was outdated and unattractive, so we wanted to hire a professional to help with the design and get the job done right.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

7 neighbors recently requested a quote
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 found McCormick home builders through Angie’s list. They were not one of our original contacts, but they contacted us and came out to give us a quote. Matteo was extremely helpful, informative, honest, and gave us reasonable realistic prices, and did not try to inflate the prices or pressure us in anyway. We felt very comfortable with him immediately. We felt like he was a member of the family that we could just talk to and ask questions he was very personable. He gave us his contact number in case we had other questions and he was always available when we needed him for any type of questions or concerns. Mateo‘s team did a beautiful job. They were fast. They were efficient. They cleaned up beautifully. They did a wonderful job. They were very considerate of our time our needs and our neighbors. They were an absolute pleasure to work with. I would highly recommend Matteo from McCormick home builders for any home building projects, and we will be calling him again in the future!"
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+1

Response time6 hrs
Recommended by15%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

"It was a design and build project: a 1200 sq ft 2-story addition to an existing house - two bedrooms, three baths, family room with wet bar, and office. Also a new 2-car garage. Matt Kennedy creatively designed the connection so as to access an existing 2nd story bedroom to the new hallway which connected it to one of the two new bathrooms. Robert Cerletti chose and managed very well the various subcontractors who were mostly expert professionals in their specialties - foundation, building structure, roofing, HVAC, plumbing, electrical, stucco and painting, wood/tile/carpeted flooring, and all finishing touches. From experience they knew how to work with city planners to reduce time for permit issuances. They recommended some added special features such as crown moulding, ornate wood stair railings, custom bathroom fixtures, exterior French water drainage, and quality kitchenette cabinets in the family room. From start to finish the project completed on-time within 9 months - delayed only by some unexpected heavy rains at the beginning slowing some foundation work. Six months has now passed since project completion and I could not be more pleased with the new addition. Robert Cerletti was on site frequently, checking on subcontractor work, consulting with me for input, discussing suggestions and ideas, getting progress payments, and paying his subs on time. The project completed on budget except where I specified added work beyond plan. I highly recommend Cerletti and Kennedy for similar projects small or large."
in the beginning
 Finished!
Wish I had a good camera
 Eat in kitchen, new wood flooring, beam ceiling
 Chefs table

+45

Response time3 days
21 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%
20 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
16 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 had a great experience working with this roofing company. From start to finish, the team was professional, organized, and efficient. The quality of the work definitely met my expectations, and I was impressed with how quickly they completed the entire reroofing project without cutting any corners. Communication was clear throughout the process, and they kept me updated on each step, which I really appreciated. There was a small delay in the delivery of some materials (not their fault), but they handled it quickly and kept things moving. If you’re looking for reliable and quality roofing work, I would definitely recommend them. It’s refreshing to see a company that values both speed and quality without trying to endlessly price gouge me — (had to deal with a few others before I found them :\)"
Updated Tile Flooring
Updated Vanity & Fixtures
Added Shelving & Accessories
Newly updated kitchen
Outdated Kitchen

+19

Response time5 hrs
Recommended by76%of homeowners
Avatar for GAXL GENERAL CONSTRUCTION
GAXL GENERAL CONSTRUCTION
5.0(
6
)
Addition to Existing Structure - Build

Serving Antioch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Emergency services offered

"We received quotes from 3 different contractors. We chose GAXL because it's close to Newark and I like how Jose explains everything in detail. Originally we thought the remodeling would take 4 weeks but it took close 6 weeks. The whole project was great, the craftsmanship was superb. At one point, we found some tiles that are not very nice (from the manufacturer) and we asked them to redo the bathroom wall. They don't complain and understand our request. The workers are great, especially Marvin and this other guy (forgot his name). They WORK very very hard from 8a to 6p everyday. Jose is on time and is very prompt in returning calls or text. In fact he's the only contractor who's very prompt and I like that! On one of the walls they discovered a mold due to rain leaking and they're able to fix it in 4 days which is great. Jose and his son pickup the materials from the suppliers and drop them in our house. Overall, Jose and his men are courteous. I will definitely use GAXL for future remodeling."
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+21

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.