Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in San Gabriel, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Addition to existing structure builders in San Gabriel

Avatar for KN Remodeling & Supplies Inc
KN Remodeling & Supplies Inc
4.8(
62
)
Addition to Existing Structure - Build

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"Working with Nathan & KN Remodeling was the best decision we made when undertaking our garage conversion job. Nathan understood exactly what we wanted, knew our budget parameters and provided us with a range of options that helped us stay within what we were seeking to spend. We wanted it to be NICE, but didn't need to over-do any of the finishes and spend needlessly on areas that were going to be used in-frequently. The end result was fantastic. The workmanship was of the highest order, the job was executed efficiently and with constant communication and oversight. The whole job was stress free and delivered on time. I can't recommend KN Remodeling highly enough!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+48

Response time8 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for So Cal Builders & Design Inc
So Cal Builders & Design Inc
4.6(
294
)
Addition to Existing Structure - Build

Serving San Gabriel, CA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1982

Free estimates

Warranties offered

"After several long years of designing and permitting our home remodel during the pandemic, we were searching for a good contractor to build out our remodel and second story addition. Avi and David were wonderful; very thorough in explaining the process, answering all of our questions, and settling on a price that was reasonable and within our budget. During the building process, David was very responsive, available, and receptive to changes and last minute decisions made along the way. The project took longer than anticipated and there were some unexpected setbacks, but David and Avi worked quickly to fix issues and keep the project moving forward. At the end of the project they were very responsible about making sure we were satisfied with every last detail before completing the project. Our new home is beautiful and we're very happy with how it turned out, thanks to David and all the crews at So Cal Builders."
Completely renovating both the guest and master bathrooms. In the master bathroom, we're installing a spacious walk-in shower featuring dual black-finished shower heads, elegant floating benches, and marble wall tiles. Meanwhile, the guest bathroom will have a sleek built-in tub and stylish hexagon tiles.
This project involved adding a new master bathroom to the existing house. The shower features sleek white subway tiles complemented by striking black fixtures and shower door hardware. The bathroom floor is adorned with elegant white marble tiles, providing a seamless and luxurious finish. A white shaker vanity topped with a white marble countertop completes the space, creating a clean and sophisticated look.
Experience a whole new level of indoor-outdoor living with the Torres Residence Backyard Remodel. This project highlights the addition of a kitchen sliding door, seamlessly merging your interior and exterior spaces
We remodeled the current kitchen, incorporating the addition of a new sliding door to establish a seamless indoor-outdoor living area
New pool with Baja bench and spa. New pavers, aluminum patio cover and built-in BBQ in the backyard

+563

36 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Creative Home Remodeling Group Inc.
Creative Home Remodeling Group Inc.
4.7(
257
)
Addition to Existing Structure - Build

Serving San Gabriel, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Free estimates

Warranties offered

"The team at Creative Home Remodeling Group did an amazing job building an ADU for my backyard. Kris was friendly, professional, and incredibly easy to work with. He made the entire process smooth and stress-free, from permitting to completion. Quality of the work was excellent, and we couldn't be happier with the result. We will definitely use them again. Highly recommend!"
Complete Kitchen with White and Blue Cabinets
Complete Kitchen Modern Kitchen With Botcher Island
posses of the kitchen remodeling
Modern ADU, large space with studio and 1 bathroom, big windows
White Kitchen Cabinets

+427

Response time1 day
Response rate100%
25 neighbors recently requested a quote
RET Construction Corp
5.0(
37
)
Addition to Existing Structure - Build

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"My wood balcony has termites and water damages. So I hired RET to do the job. Kevin gave estimates and recommended composite planks for floor and red woods for railings. His workmanship was very professional and finished on time! On top of that, Kevin updated my balcony to the latest building codes. His price is very reasonable. If you want cheap prices and lousy jobs,hire someone else! Highly recommended!"
Response time4 hrs
Recommended by77%of homeowners
Avatar for MF Construction & Design Inc
MF Construction & Design Inc
4.5(
82
)
Addition to Existing Structure - Build

Serving San Gabriel, CA and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"Mike Mamen called back within the hour. Next day I showed him the problems with my 90-year-old garage's roof and wiring. He tell me that existing 2x4 rafters could be sistered rather than replaced with 2x12. Additional 2x6 tie beams across garage. He recommended all new shingles, garage door, side door, window, lights, and outlets. Exterior paint on stucco and wood trim. Mike recommended replacing the house 100A electric service panel with 200A, in addition to trenching a conduit between house and garage. He also recommended grading behind the garage to route water away from its foundation. Also, adding gutters and downspouts to both the garage and house. Later we discovered that the house's facia needed to be replaced. He drove me to two current job sites, introduced his crew, and showed the work being done. Mike is knowledgable, direct, friendly, and talkative. Listens to my concerns and ideas, then presents options and his recommendations. Responds to later questions and text messages. Knows local building codes and permitting process. Works by the book -- written contract proposals describe the job and materials. Flexible in handling changes and unexpected glitches. Does minor tasks gratis. Personally attends inspections. Likewise, foreman and electrician Luis is friendly and competent. I am pleased with the competence and results of MF Construction and Design. The entire job took about seven weeks. It was more expensive than I would have thought. OTOH I did not get other bids."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

Response time2 days
2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Skyline Konstruction
Skyline Konstruction
4.9(
11
)
Addition to Existing Structure - Build

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Skyline converted our attached garage into a beautiful ADU with quality workmanship, fair pricing, and top notch materials. They were very particular with respect to details, which made a huge difference in the end. I would strongly recommend skyline and will use no other company for any project, large or small. If you want the job done right, with transparency and professional service from start to finish, look no further!"
Restroom
Home remodel
Laundry
Home remodel
Laundry

+93

Response time2 days
Response rate100%
9 neighbors recently requested a quote
Avatar for Home Renew 360
Home Renew 360
4.7(
78
)
Addition to Existing Structure - Build

Serving San Gabriel, CA and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Warranties offered

"Had our roof replaced by the awesome team with Nathan behind the wheel. Very professional and no hidden costs, upgrades, etc. Very timely and up to standards. I cannot recommend them enough to anybody needing anything. In fact, we will be reaching out for future improvements on our small bungalow in LA. Also, be assured that they are not some "new to the game" company as there are a lot of them."
Roof in Huntington Beach
Asphalt Shingle Roof
Flat roof
Master Bathroom
Exterior Paint

+179

Response time8 hrs
Response rate100%
36 neighbors recently requested a quote
Avatar for YB Builders Group Inc.
YB Builders Group Inc.
5.0(
11
)
Addition to Existing Structure - Build

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"We recently had our kitchen remodeled, and the entire experience exceeded our expectations. From the initial consultation to the final installation, the team was professional, punctual, and paid incredible attention to every detail. They kept the work area clean, communicated with us throughout the project, and delivered exactly what they promised."
Bathroom Remodel
Master bathroom
Master bathroom
Master bedroom
Kitchen Remodel

+74

74 neighbors recently requested a quote
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Addition to Existing Structure - Build

Serving San Gabriel, 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!"
.
.
.
.
.

+1

Response time6 hrs
Recommended by17%of homeowners
...
Showing 1-10 of 655
FAQs for addition to existing structure building service projects in San Gabriel, 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 San Gabriel, 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.