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Find Addition to existing structure builders in San Jose

Avatar for My Construction Group
My Construction Group
4.8(
182
)

Serving San Jose, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"I had the pleasure of working with Ariel from My Construction Group for a fairly large remodel (two balconies, one room addition, and one great room expansion) project on my home. I was very pleased with the completed work and even more impressed with their attention to the customer experience. This truly differentiated them from other contractors I have worked with. I would highly recommend My Construction Group to everyone."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+110

Response time2 days
7 neighbors recently requested a quote
Recommended by97%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 love our new deck! It’s sturdy, beautiful, and adds so much value to our backyard. The team listened to what we wanted and delivered exactly that, right down to the custom railing and built-in seating."
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 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

"Herman Construction is wonderful and takes pride in the work they do and the value they deliver to us (customers). Herman Construction has done several jobs for our home -- including a tricky kitchen renovation (cabinet work), fixing a leaking pipe in wall, deck work, and an electrical upgrade. They are attentive to details and do every job to ensure we are pleased with the outcome. I highly recommend Herman Construction."
Home Addition
Home Addition
Home Additon
Home Additon
Home Addition

+25

Response time7 hrs
Recommended by81%of homeowners
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 wanted to share my fantastic experience with ON Design & Remodeling during my recent bathroom remodeling project. The results are amazing, and I'm so grateful to Raz and Sofia. The bathroom now feels like a high-end spa, The tiles, fixtures, and overall design are top quality. Can't wait for future projects with ON Design & Remodeling! "
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%
37 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

"Reliable skilled, and professional construction service. The team completed the work on time and with great quality. The final result looks amazing. I would definitely recommend them."
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

"Just finished a full kitchen remodel with Unique Home Design & Remodeling, and if I could give more than 5 stars, I would. Working with Tal made all the difference — he was honest, organized, and clearly experienced. This was our first big home project, so we were nervous, but Tal’s steady communication and willingness to walk us through every choice really made us feel confident. The team was respectful, clean, and worked incredibly hard. One thing that stood out was their flexibility — when we made a few changes mid-project, they didn’t roll their eyes or nickel-and-dime us. Instead, they adapted and kept things moving forward. The result is a beautiful, functional kitchen that feels us. Highly recommend these guys if you want quality and peace of mind!"
M
Response time1 day
Response rate96%
149 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

"We recently had the chance to work with Quartz construction ( owner: Ohad) on our construction project for bathroom remodeling and we couldn’t be more pleased with the results. From start to finish, their team demonstrated professionalism, transparency. They maintained clear communication throughout the project, kept us informed of progress and any potential changes, and delivered everything on time and within budget. The quality of the workmanship is outstanding — every detail was handled with care and precision. What stood out most was their commitment to customer satisfaction. They were responsive to our questions, respectful of our space, and ensured that the final outcome matched our vision perfectly. If you're looking for a reliable, skilled, and trustworthy construction contractor, I wholeheartedly recommend Quartz Construction, Ohad and his team. AJ "
bathroom
bathroomremodel
stairs
stairs
wood deck

+252

Response time2 days
1 neighbors recently requested a quote
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

"Just finished a full kitchen remodel with Unique Home Design & Remodeling, and if I could give more than 5 stars, I would. Working with Tal made all the difference — he was honest, organized, and clearly experienced. This was our first big home project, so we were nervous, but Tal’s steady communication and willingness to walk us through every choice really made us feel confident. The team was respectful, clean, and worked incredibly hard. One thing that stood out was their flexibility — when we made a few changes mid-project, they didn’t roll their eyes or nickel-and-dime us. Instead, they adapted and kept things moving forward. The result is a beautiful, functional kitchen that feels us. Highly recommend these guys if you want quality and peace of mind!"
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

"The Hall and Master Bathrooms were fully renovated with new cabinets, countertops, showers and fixtures. Leo from Skytech assisted me along the way with option choices and recommendations. The crew was exceptional in their workmanship and were very detail oriented and made sure to clean the area prior to departure each day. I have received multiple compliments on the finished bathrooms. I would highly recommend Skytech Builders to anyone considering renovations and Leo in particular."
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
31 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.