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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

"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 time5 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 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

9 neighbors recently requested a quote
Recommended by75%of homeowners
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

"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 time2 days
Response rate93%
633 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

"As most of us know when we do a remodeling project, it is real hard to find good and honest people to complete your project. Fortunately, I found Leo and Yonathan from SkyTech Builders to help me with remodeling and repairing two of the bathrooms in my family's 4-Plex building. They were very honest, polite and helpful each step of the process from start to finish. The are very patient and suggested materials and design but always thinking about quality and your budget. Overall the experience with Leo and Yonathan was top notch and we were very satisfied with the finished product. We will definitely be using Sky Tech Builders for our future construction projects."
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

35 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

"Did just what I needed - added a 240 V circuit to my existing subpanel using liquid waterproof conduit, done in 2 hours, reasonable quote for the work, two thumbs up, would hire again! They also noticed an existing outlet that was not properly sealed near the area they were working and sealed it up!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

8 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

"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 time12 hrs
Response rate100%
41 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

"This company delivered solid construction results with great attention to safety and quality. The crew was experienced and organized. The final build looks excellent. Very happy with their work."
kitchen
kitchen
kitchen
bathroom
bathroom

+165

Response time1 day
1 neighbors recently requested a quote
Recommended by29%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.