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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

"Our basement went from a dark storage area to a cozy family room and home office. The remodel was smooth from start to finish. Great communication, thoughtful design ideas, and skilled workmanship throughout."
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 rate98%
1 neighbors recently requested a quote
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 is a very nice guy to work with. He is approachable, easy to communicate with. He goes through the project from end to end on our first visit, explain how he would build the frame, cut the wood, the timeline. He also finds a stone guy and coordinates the work. When actually doing the work, he puts cardboards on our floor to avoid scratching. Upon request, he also did a prototype for us, and when we change our mind to use a different style, he redoes the bulk of the project. I would recommend Karol to anyone who needs carpenter work!"
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

"The finished work turned out beautifully but the length of time it took the crew to complete the job could have been better. The project manager was great to work with and very responsive however there are a couple of small details that I am waiting for them to resolve."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+555

Response time7 hrs
Response rate100%
10 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
34 neighbors recently requested a quote
Recommended by100%of homeowners
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 time10 hrs
7 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
4.9(
65
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"After they redid our counter tops and island, we had them paint out cabinets and build shelves up to the ceiling. The communication was on point this time and the results speak for themselves. Would definitely recommend them to anyone for any home project."
full house remodeling
full house remodeling
full house remodeling
full house remodeling
full house remodeling

+31

Response time1 day
Response rate98%
622 neighbors recently requested a quote
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

"We just finished to build an ADU in the backyard with ON Design & Remodeling. In the beginning we met Aviv and he guided us with his team along the design process. They helped us to get the permit faster and choosing all the visible materials before starting the work. During the construction we received weekly updates regards the process so we always knew what to expect. We build the unit for my parents and they are so happy with their new small home, and to share the yard together with us. Currently we are in the planning process to remodel our main resident kitchen with ON team, so obviously we are so happy working with this amazing team."
The Willow Oaks project
First floor kitchen and stairs
Master Bathroom remodeling
Open concept Kitchen
The Willow Oaks project

+399

Response time2 days
Response rate94%
44 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

"Excellent construction services with strong attention to detail. The crew worked efficiently and stayed within the agreed timeline. The final structure looks amazing. Very dependable company."
kitchen
kitchen
kitchen
bathroom
bathroom

+165

Response time1 day
Response rate85%
2 neighbors recently requested a quote
Avatar for Quartz Construction
Quartz Construction
4.7(
77
)

Serving San Jose, CA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Mastersuite remodel - created separate office within existing floorspace by adjusting bathroom and closet size. Great experience from start to finish. Ohad Mahoul, owner of Quartz, is very easy to work with, made helpful recommendations for material supplies, regularly visited our home throughout the project and responded very swiftly to calls and emails from start to finish; Ohad’s foreman, Luis, and co-workers, all worked tidily, respectfully and professionally - they were all very pleasant to have around. We made a few adjustments to our project along the way, which the team were happy to accommodate - nothing was too much trouble. The job required plumbing, electrical, lighting, carpentry, bathroom tiling, quartz counter and shower installation, installation of both engineered wood and tiled flooring. We are delighted with the results and are hoping to work with Quartz again on another project at our home."
bathroom
bathroomremodel
stairs
stairs
wood deck

+252

Response time2 days
2 neighbors recently requested a quote
Recommended by87%of homeowners
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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.