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Find Addition to existing structure builders in San Jose

Avatar for My Construction Group
My Construction Group
4.9(
192
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"Ariel, Lorena, and team just finished my bedroom addition project. Ariel was on top of things from plans to construction finish. As a home owner go through this the first time, I had lots of questions and Ariel answered them with great patience. He organized the construction very efficiently. I will hire My Construction Group again for future needs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+110

Response time2 days
13 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for OT Bay Builders
OT Bay Builders
5.0(
77
)

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 rate98%
3 neighbors recently requested a quote
Avatar for On Design & Remodeling INC
On Design & Remodeling INC
5.0(
38
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"I canâ t thank enough to ON design & Remodeling, and especially to Raz and Aviv my project managers. It was my first major remodeling in the house and I was a little nervous in the beginning, but they met me at my house for the consultation and I felt that there is someone to trust from the first moment. During the project they were always there and responsive to all of my familyâ s questions, they shared a lot of photos and videos in our communication group and kept us in the loop. I am IN LOVE with my new dream kitchen! Highly recommend to any of you like me that looking for a good company that you can trust to make the whole remodeling to a very exciting experience."
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%
38 neighbors recently requested a quote
Avatar for LeCut Construction
LeCut Construction
5.0(
51
)

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 Unique Home Design & Remodeling
Unique Home Design & Remodeling
5.0(
48
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1983

Free estimates

Warranties offered

"We recently completed a room addition with Unique Home Design & Remodeling, and the experience was absolutely fantastic from start to finish. Ofir, our project manager, was an absolute gem—responsive, honest, and incredibly organized. We added a bedroom and small bathroom off the back of our home, and not only did they finish ahead of schedule, but the quality of work is top-notch. The finishes are exactly what we envisioned, and the team kept the construction site tidy every day. What impressed us most was how seamless they made everything feel. If you're looking to add space to your home, I wouldn't hesitate to recommend them!"
M
Response time1 day
Response rate96%
154 neighbors recently requested a quote
Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
5.0(
14
)

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%
612 neighbors recently requested a quote
Avatar for Quartz Construction
Quartz Construction
4.8(
65
)

Serving San Jose, CA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"First of all, these guys are rockstars. I never thought that I will say this about contractors - but they really impressed us with their professionalism and quality of work. We bought a new house with a big yard for our kids to run around (realizations during the pandemic), but it meant that we had to compromise on the quality of the house interior. It looked really old and didn't look renovated after it was build in the 60s. I started talking to general contractors to get it remodelled and was shocked by the timelines and prices being quoted. I found Ohad (owner of Quartz Construction) via yelp reviews and what struck me most was that everyone was commenting on his clear communication. We had done a remodel of our townhome in the past and it was not a great experience since the contractor kept changing timelines and prices in the middle of the job. My wife and I went to their office and had a detailed conversation with Ohad on what we were looking for. We had just a vague idea of what we wanted and this is where Ohad really helped us. He worked with us to create a plan on how we can make the home better and he even played the role of the designer to change the layout to create a new bedroom and bathroom. Post that, he drafted up everything and gave us a detailed quote on everything. 1. Remove 2 fireplaces and an indoor bbq pit within the home. 2. Change complete flooring. 3. Remove the popcorn cieling (and asbestos) and put new cieling. 4. Complete remodel of kitchen including structural changes. 5. Complete remodel of 2 bathrooms. 6. Construction of a new room and bathroom (with structural change). 7. Remodel the laundry room and guest washroom. 8. Recess lights across the house (close to 80 + recess lights across the house). 9. Painting interior and exterior. 10. New sub-panel for appliances. 11. All the required permits for these. Ohad a quoted a very reasonable price for all of this and he quoted 2 months to finish the project. I was a bit shocked, but he was very confident about it. We really liked the way he communicated and had an open discussion about everything, so we decided to go with him. Ohad had promised us that we will see progress in our house everyday and he kept that promise. His workers are honest, hard working folks and we were really impressed by everyone - especially Omar who was the worksite supervisor. The workers showed up everyday on time (8 am or earlier) and left late evening by 7 pm. They left the worksite so clean after every day's work that we used to wonder whether they were planning to come back the next day :-). Even our new neighbors were commenting about the punctuality and asked us for the contractors phone number for their remodeling (without seeing the interior, just based on the punctuality). We were expecting it to at least take 3-4 months and were prepared for the wait - but the entire project finished in 2 months a 1 week ( 1 week over the agreed timeline). And, the reason why it took 1 week more was since we added exterior painting and slanting roof+insulation for our new bedroom at the last moment. Since almost everything at our place was new, there were things to be fixed and reconfigured after we moved in. Anything we called and asked for was done the same day or the immediate next day. Everyone coming in and seeing the house cannot believe that it was done in 9 weeks (and within the budget) and a lot of my friends are now planning remodelling keeping Ohad and Quartz construction in mind. Ohad always says that he is "talking out loud" so that there is no confusion. It is his way of making sure that everyone is on the same page and there are no surprises. He is brutally honest and that is the best quality a contractor should have. This was the biggest remodeling we ever did and we were expecting a grind - but it was a breeze thanks to Ohad and his men. Highly recommended !!"
bathroom
bathroomremodel
stairs
stairs
wood deck

+252

Response time2 days
Recommended by87%of homeowners
Avatar for Unique Home Design & Remodeling
Unique Home Design & Remodeling
5.0(
48
)

Serving San Jose, CA and surrounding areas

Approved

In business since 1983

Free estimates

Warranties offered

Unique Home Design & Remodeling is a leader in providing value-added construction services to our customers by creating a successful partnership throughout the construction process. Our pledge is to establish lasting relationships with our customers by exceeding their expectations and gaining their trust through exceptional performance by every member on our construction team. Unique Home Design & Remodeling's mission is to accomplish full customer satisfaction in every area possible from color selection to project completion. Unique Home Design & Remodeling's main focus is to provide our future clients with a professional home improvement experience. We vow to our customers with the highest level of quality construction services at fair market and competitive prices. To ensure the longevity of our company through repeat and referral business achieved by customer satisfaction in all areas including timeliness, attention to detail and service-minded attitudes.

Response time2 days
39 neighbors recently requested a quote
Recommended by66%of homeowners
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

"I went with Sky Tech Builders on a room addition. I decided to hire this company because they gave me very realistic offer, were available in short time and I also got some recommendations from my friends. The project started soon after we signed a contract and it went very smooth, there were no issues or hidden costs. Sky Tech Builders team was professional, efficient, quick and communication was great. They finished this project ahead of schedule, quality is superb and final product is excellent. I couldn't ask for more! Thank you!"
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
30 neighbors recently requested a quote
Recommended by100%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.