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Find Basement remodelers in El Sobrante

Avatar for OT Bay Builders
OT Bay Builders
5.0(
77
)

Serving El Sobrante, CA and surrounding areas

Angi 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%
2 neighbors recently requested a quote
Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
5.0(
13
)

Serving El Sobrante, CA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"We recently had our bathroom remodeled by Be Home Remodeling, and I just wanted to share how happy we are with everything. Pouria, our project manager, was great — super organized, always kept us updated, and really listened to any concerns we had. Any time we needed something or had a question, he handled it right away. The crew (Manuel, Isaí )did an awesome job. They worked cleanly, were respectful of our home, and the quality of the work shows. The bathroom turned out even better than we expected, and we honestly love how everything came out. Overall, it was a really smooth experience, and we’d definitely recommend Be Home Remodeling and Pouria if you’re planning a remodel."
full house remodeling
full house remodeling
full house remodeling
full house remodeling
full house remodeling

+31

Response time1 day
Response rate98%
338 neighbors recently requested a quote
Avatar for Northwest Builders & Renovation, LLC
Northwest Builders & Renovation, LLC
5.0(
11
)

Serving El Sobrante, CA and surrounding areas

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."
Leslie House Remodel
Leslie House Remodel
Leslie House Remodel
Leslie House Remodel
Leslie House Remodel

+30

Response time11 hrs
Response rate99%
4 neighbors recently requested a quote
Avatar for Tech Line Construction, Inc.
Tech Line Construction, Inc.
5.0(
13
)

Serving El Sobrante, CA and surrounding areas

Angi Approved

In business since 2007

Free estimates

Emergency services offered

"Tech Line Construction was easy to work with. They showed up when scheduled and finished the project as discussed. The workmanship was solid, and communication was consistent throughout."
Fremont
Fremont
Remodel
Beautiful Kitchen Remodel
Beautiful Kitchen Remodel

+28

Response time2 days
11 neighbors recently requested a quote
Recommended by61%of homeowners
Avatar for Plumbing 1 Builder's Inc
Plumbing 1 Builder's Inc
5.0(
14
)

Serving El Sobrante, CA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"These guys were great. Fixed the issue and went above and beyond with a few extra repairs. Professional and cleaned up everything. I will definitely reach out again for any work in the future."
Response time3 hrs
44 neighbors recently requested a quote
Avatar for Bear Remodeling, Inc.
Bear Remodeling, Inc.
4.9(
21
)

Serving El Sobrante, CA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2019

Free estimates

Customers say: Quality work

"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!"
living room remodel
Wet bar
waterfall island
gray shaker style cabinets
kitchen island

+158

Response time12 hrs
Response rate98%
15 neighbors recently requested a quote
Avatar for BEAR Remodeling Inc.
BEAR Remodeling Inc.
4.9(
15
)

Serving El Sobrante, CA and surrounding areas

Angi Approved

Super Service Award Winner

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!"
Outdoor Kitchen - Clayton
Outdoor Kitchen - Clayton
Outdoor Kitchen - Clayton
Weather Safe
Outdoor Kitchen - Clayton

+84

Response time9 hrs
18 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Ovation Restoration, LLC
Ovation Restoration, LLC
4.7(
78
)

Serving El Sobrante, CA and surrounding areas

Angi Approved

In business since 1997

Free estimates

Emergency services offered

"Ovation Restoration did an excellent job with our home improvement project. In our master bedroom, to take advantage of a fantastic view, they removed a large window from one wall, sealing it up like new, and installed a similar window on another wall. The work was performed quickly and skillfully, with great results. They also turned the double door leading into that room into a single door, creating more space in the room. Concurrently, in the guest bathroom, the old tub was removed, and a beautiful walk-in tiled shower was installed, along with a window with a fantastic view. The project manager Rick was a pleasure to work with, and his team were all professional, conscientious, and friendly. Everything turned out just as we imagined. We would highly recommend Ovation Restoration."
Breathtaking solid slab granite countertops
Walk-in shower with sliding glass door
Handicap accessible with style
New lighting
Antique white custom cabinets

+133

Response time10 hrs
Response rate93%
5 neighbors recently requested a quote
Avatar for Puffin Builders, Inc.
Puffin Builders, Inc.
5.0(
7
)

Serving El Sobrante, CA and surrounding areas

Angi Approved

In business since 2020

Free estimates

Warranties offered

"Working with Puffin was incredible. What originally started with a small repair became much larger when we began demolishing portions of our house that had fallen into disrepair and Kristian and his team were there every step of the way. From communicating changes and keeping us up to date on expenses and needed repairs to educating us on code compliance and inspection schedules we felt safe in Puffinâ s hands. Our home is now safe, strong and beautiful because of Puffinâ s hard work and dedication. I would happily work with them again."
Solid Surface Shower Surround
Vanity
Window, tub, toilet and vanity
Storage solution
Kohler Sliding Glass Door

+2

Response time1 day
Response rate94%
Recommended by85%of homeowners
...
Showing 1-10 of 438
FAQs for basement remodeling projects in El Sobrante, 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 El Sobrante, CA homeowners’ guide to basement remodelings

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