Top-rated addition to existing structure builders.

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

Avatar for OT Bay Builders
OT Bay Builders
5.0(
109
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"We needed more space for our growing family, and the addition they built blends in seamlessly with our original home. From permits to the finishing touches, everything was handled professionally. It’s like it was always meant to be part of the house!"
Broadway Kitchen Remodel
Broadway Full Kitchen remodel
Broadway Full Kitchen remodel
San Francisco Contemporary Kitchen Remodel
San Francisco Contemporary Kitchen Remodel

+81

Response time12 hrs
Response rate100%
Recommended by68%of homeowners
Avatar for Herman Construction Company
Herman Construction Company
5.0(
22
)

Serving San Jose, CA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Karol and his crew are very talented, efficient builders. We hired Karol to build a composite deck to compliment the pool we had installed in the back yard. It turned out beautifully. He is a great communicator and listener, prompt and reliable."
Home Addition
Home Addition
Home Additon
Home Additon
Home Addition

+25

Response time7 hrs
Recommended by81%of homeowners
Avatar for Future Vision Remodeling
Future Vision Remodeling
4.9(
57
)

Serving San Jose, CA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"Future Vision Remodeling is one of the most professional companies I have dealt with. Not only are the project managers punctual and knowledgeable, their office staff are diligent and handle any problem to the best of their ability. I would highly recommend hiring them for any project."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+555

Response time7 hrs
Response rate100%
11 neighbors recently requested a quote
Avatar for Herman Construction Company
Herman Construction Company
5.0(
30
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Warranties offered

"Karol worked as general contractor for our home remodel, which involved adding a second story on an existing single family home. Karol managed the project very skillfully, keeping it within budget and our timeline. I was particularly impressed by his integrity and we eventually came to trust him for looking out for it interests. When our initial drywall subcontractor was overbilling us and frequently absent from the job, Karol promptly called out the actions and terminated the contact. He helped us find good workarounds for some issues involving our kitchen cabinets and a new outdoor deck."
Second floor House addition in progress. San Jose
second floor house addition before San Jose
Second floor house addition complete
second floor house addition in progress
2 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
4.9(
67
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"It was a great pleasure working with Pouria and Juan. I hired them to help build a 400 sq. ft. deck, and they were able to finish it within a week at a very high quality. They were incredibly flexible with all of our requirements?don't hesitate to communicate with them if you need anything changed during construction! They are absolutely amazing and efficient. They even did some extra work around our house, which will really help us in the long run. Their pricing is very fair compared to many other groups, and I will definitely go to them the next time I need a project done!"
full house remodeling
full house remodeling
full house remodeling
full house remodeling
full house remodeling

+31

Response time1 day
Response rate99%
621 neighbors recently requested a quote
Avatar for Skytech Builders
Skytech Builders
5.0(
21
)

Serving San Jose, CA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"After I contacted several contractors on a room addition I decided to go with Sky Tech Builders and I can tell that it was a really easy decision because they gave me great offer and they completely understood what I wanted to do. They were also available on acceptable time and project started soon after we signed a contract. The project manager and his crew were professional, honest, helpful and very respectful to me and my home. They finished project within time they promised and within my budget. And final outcome is excellent, I am fully satisfied with everything they did and would definitely work with Sky Tech Builders again!"
Master Bathroom Remodel in San Jose.
Kitchen Remodel in San Mateo
Kitchen remodeling in Fremont
Master Bathroom Remodel in San Jose.
Kitchen Remodel in San Mateo

+63

Response time1 day
Response rate100%
35 neighbors recently requested a quote
Avatar for Bay Easy Construction
Bay Easy Construction
4.3(
154
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"It was a challenging time to undertake this project between COVID, engineering errors (not the builder), labor shortages, and the price of lumber. I would not say it was easy, but the end result is a very well built, comfortable, attractive, and energy efficient living space. I learned a lot from this project and provided feedback to the contractor about what I didn't know about the process when we began and what others would benefit from. One key item is a clear list of what the "finishing" materials are and a schedule indicating when these materials are needed. I recommend that anyone working on a building project of this intensity insist upon a detailed list as part of the contract and in advance of the work beginning. Since our work was done, this contractor has hired two additional people to focus on those types of needs. The people performing the labor were always polite, friendly and respectful of masking and social distancing. We felt comfortable with them around our home. One thing that could have been better is more orderly disposal of materials and separation of recyclable and non-recyclable items."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time9 hrs
4 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for On Design & Remodeling INC
On Design & Remodeling INC
5.0(
46
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"I recently had the pleasure of working with ON design for a significant addition and removal project at my home. From start to finish, their professionalism and attention to detail were impeccable. They communicated clearly throughout the process, ensuring I was always up to date with the progress. The quality of their work was exceptional, and they completed the project on time and within budget. I couldn't be happier with the transformation they brought to my home. Highly recommend their services!"
The Willow Oaks project
First floor kitchen and stairs
Master Bathroom remodeling
Open concept Kitchen
The Willow Oaks project

+399

Response time2 days
Response rate100%
42 neighbors recently requested a quote
Avatar for LeCut Construction
LeCut Construction
5.0(
62
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Warranties offered

"I hired Lecut Construction to remodel my entire home including 3 bathrooms, kitchen, flooring and carpeting. They are very knowledgeable and were very clear in communication. They gave us full freedom in choosing our designs and modeled and constructed exactly like how we wanted them, without changing the price on the initial contract. They kept on their schedule without slipping up. In addition, it's been more than a year and I can still call them anytime if there is any issue and they would come and fix the minor issues without any charge."
kitchen
kitchen
kitchen
bathroom
bathroom

+165

Response time1 day
Response rate87%
2 neighbors recently requested a quote
...
Showing 1-10 of 589
FAQs for addition to existing structure building service projects in San Jose, 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 Jose, 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.