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Find Basement remodelers in San Jose

Avatar for DARCO, LLC
DARCO, LLC
4.90(
5
)

Angi Approved

In business since 2019

Free estimates

Customers say: Quality work

"DARCO did a wonderful job on my kitchen/ dining space remodel. It is even more beautiful than I imagined, and everything was done with such high quality. I love sharing how beautiful it is with family, friends and neighbors!"
Recommended by100%of homeowners
Avatar for Herman Construction Company
Herman Construction Company
4.98(
21
)

Angi Approved

In business since 2000

Free estimates

Customers say: Quality work

"I hired Karol for a bathroom remodel and Im very happy with how it turned out. Karol was great to work with. Very friendly, professional, communicative and detail oriented. I would definitely recommend him."
Recommended by85%of homeowners
Avatar for Cardinal Custom Construction
Cardinal Custom Construction
5.00(
3
)

Angi Approved

In business since 2005

Free estimates

Warranties offered

"We hired Dave and his crew to build our new home. Dave and his design/engineering team made some wise changes to our plan that saved time and money. His crews were able to build are home ahead of schedule, on budget, while maintaining excellent craftsmanship. Dave was super accomodating and easy to deal with on difficult decisions. I highly recommend Cardinal for your project."
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
4.96(
12
)

Angi 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. "
603 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for Northwest Builders & Renovation, LLC
Northwest Builders & Renovation, LLC
5.00(
11
)

Angi Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"I recently had the pleasure of replacing my roof with Isaac, Jonathan, and their team, and I couldn't be more pleased with the outcome. They were really nice, professional, and on time from beginning to end. They went above and beyond by guiding me through the insurance procedure and making sure I received full compensation for the damage. The entire procedure was stress-free thanks to their support and outstanding communication."
5 neighbors recently requested a quote
Avatar for Benlo Remodeling
Benlo Remodeling
5.00(
10
)

Angi Approved

Super Service Award Winner

In business since 2025

Free estimates

"I couldn?t be happier with our kitchen remodel! From start to finish, the team was professional, attentive, and incredibly skilled. They helped us refine our design ideas, stayed on schedule, and kept communication clear throughout the entire process. The craftsmanship is outstanding?every detail, from the cabinetry to the lighting, looks flawless."
1 neighbors recently requested a quote
Avatar for BEAR Remodeling Inc.
BEAR Remodeling Inc.
4.93(
15
)

Angi Approved

In business since 2017

Free estimates

Customers say: Quick response

"Working with BEAR Remodeling on our ADU garage conversion has been a great experience! The 3D design has really helped us see the project before work began. The team has stayed organized, finished on time, and delivered exactly what we had imagined. Everything has turned out clean, modern, and built to last. We have happily recommended BEAR Remodeling to anyone looking for reliable remodeling services!"
3 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Future Vision Remodeling
Future Vision Remodeling
4.00(
8
)

Angi Approved

In business since 2013

Free estimates

Customers say: True professional

"The bathroom remodel went well. The completed work was beautiful and completed on time. Especially great job on the tile work. Would definitely hire again"
2 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Yad Construction
Yad Construction
4.50(
2
)

Angi Approved

In business since 2010

Free estimates

Emergency services offered

"Very good work. Performed carpentry, drywall , stucco, painting and brickwork. Finished job on time. Arrived promptly ; cleaned up before leaving each day."
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for RG Construction
RG Construction
5.00(
8
)

Angi Approved

In business since 0

Free estimates

Emergency services offered

"Me and my wife decided recently to get our kitchen remolded. After some time searching for the right guys to do the job we settled on RG Construction. Richard, who is the owner, is a great guy and super informative. He never left any question unanswered or left us uncertain about anything. His crew works quick, and they pay attention to the tiniest detail. They absolutely are worth every dollar and I would recommend RG Construction to any homeowner, and I for sure will be giving them a call back for any work I need done in the future. Me and my wife are absolutely in love with our remodel."
12 neighbors recently requested a quote
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Showing 1-10 of 1029
FAQs for basement remodeling projects in San Jose, CA

Finishing a basement turns unused square footage into livable space and returns up to 70% of what you spend when you sell your home. Beyond that resale boost, you gain a playroom, home office, or guest suite you can start enjoying right away. That mix of daily comfort and solid return on investment (ROI) makes basement finishing one of the smartest upgrades you can tackle.

In some parts of the country—especially lots on swamps, high water tables, or other wetlands—local codes prohibit basements. Saturated soil puts constant pressure on foundation walls and lets water seep in faster than any sump pump can handle. 

If your property sits on waterlogged ground, building on a slab or crawl space is often safer, more affordable, and code-compliant.

Most basements wrap up in four to eight weeks. Framing takes three to five days, with electrical and plumbing rough-ins following over the next week. Add five days for drywall, two to three for flooring, and another week for paint, trim, and punch-list items. 

Delays can happen if materials run late or your contractor’s calendar is packed, so build in a little cushion when you plan.

Whether a finished basement counts toward your home’s official square footage depends on local rules. Many areas only include below-grade space if it has code-approved egress, fully finished walls, ceilings, and floors, plus consistent heating. 

Check with your local assessor or building department before you start; meeting those standards can affect taxes, appraisals, and resale value.

Building codes require a checklist: dedicated heat and electrical service, a code-approved stairway, and at least one egress window or exterior door. Walls, ceilings, and floors must be fully finished and meet insulation, ventilation, and fire-separation standards. If you add a bedroom, you’ll also need a closet, proper clearances, and safe exits. If you change the layout later, be ready to update the space so every new room still meets today’s code.

The San Jose, CA homeowners’ guide to basement remodelings

From average costs to expert advice, get all the answers you need to get your job done.