Top-rated basement remodelers.

Get matched with top basement remodelers in Hayward, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Basement remodelers in Hayward

Avatar for UNITED C CONSTRUCTION, INC
UNITED C CONSTRUCTION, INC
5.0(
3
)

Angi Approved

In business since 2024

Free estimates

Customers say: Quick response

"Updating our home was a dream we have had for years. But finding a good contractor in Bay Area was so difficult, that we almost gave up. We were introduced to United C Construction by our architect(who we also love!) It was exhausting trying to find someone trustworthy and not overpriced. We had luck of working with Osmar which during the project we had clear communication, expectation of setting, professionalism and superior craftsmanship. He walked us through every step of the way, and helped problem solve tough permitting and structural issues in Berkeley!"
Recommended by66%of homeowners
Latan Construction
5.0(
1
)

Angi Approved

In business since 2018

Free estimates

Customers say: Quick response

"Latan Constrution is the best contractor I have ever had. Saud said he would be at my house at 8:00 am for a estimate 7:55 he was in my driveway waiting for 8:00. His estimate was very good and he kept his price to the estimate. Every day he was on time and ready to go to work 8:00 AM. Saud is the best contractor I have ever had he makes sure you are happy with his work. If I could give him 10 stars I would. I have some more things I need him for flooring, kitchen, bathroom. Latan Constrution is the best thank you Saud."
Recommended by100%of homeowners
Avatar for Citadel PG
Citadel PG
4.6(
5
)

Angi Approved

In business since 2020

Free estimates

Customers say: Quick response

"Update: They came out to take care of some issues, which has not been resolved. It was not so good at the beginning but it got better and the work now looks good!"
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Alvarado and Son Construction, Inc.
Alvarado and Son Construction, Inc.
5.0(
3
)

Angi Approved

In business since 2018

Free estimates

Customers say: Quality work

"Jose, Jesus, and the whole crew are awesome. They put in the foundation, framed, and sided a new addition and did a great job. I have worked with a lot of contractors and Alvarado and Son are amazing. Their price was reasonable, the speed of getting the project done was lightning fast, and the whole crew are really nice people that you just like to have around. I have never had a foundation come out as dimensionally correct as they built it and their framing was outstanding. I literally had the city inspectors giving them compliments ... which just doesn't happen normally. If you have a similar project, look no further! "
1 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
5.0(
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. "
613 neighbors recently requested a quote
Recommended by33%of homeowners
...
Showing 1-10 of 1034
FAQs for basement remodeling projects in Hayward, 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 Hayward, CA homeowners’ guide to basement remodelings

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