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Find Basement remodelers in West Covina

Avatar for LEV Buildzoom, Inc.
LEV Buildzoom, Inc.
New to Angi

Angi Approved

In business since 2019

Free estimates

LEV Buildzoom, Inc. is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work.LEV Buildzoom, Inc. is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

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Avatar for Maple Construction and Development Inc.
Maple Construction and Development Inc.
5.0(
2
)

Angi Approved

In business since 2023

Free estimates

"We did a full house renovation, and Jay gave us so many professional suggestions on electrical and plumbing layout, kitchen, island, bathrooms, bedrooms, and staircase design and planning. He carefully combined his expertise with our needs, and the final renovation turned out better than we could have imagined. Our whole family is very satisfied with the result. We highly recommend Jay as an architect for anyone looking to renovate their home!"
1 neighbors recently requested a quote
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Avatar for WeBuild Home Efficient
WeBuild Home Efficient
5.0(
15
)

Angi Approved

In business since 2019

Free estimates

Customers say: Quick response

"Bar and the WeBuild Efficient team did a great job installing pavers on my driveway and fixing my wooden steps and garage. He was very professional and responsive. I would recommend them, highly."
10 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Oshri Construction
Oshri Construction
5.0(
3
)

Angi Approved

In business since 1986

Free estimates

Emergency services offered

"They did an excellent job. The quality is outstanding. They pay attention to every little detail. They were very friendly, and accommodating to our wishes. They were very punctual, hard working, and cleaned up after each day. The kept the dust down to a minimum to the rest of the house. I can highly recommend Oshri Construction for anyone's next project."
2 neighbors recently requested a quote
Recommended by100%of homeowners
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Lotus Builders
5.0(
4
)

In business since 2002

Free estimates

Warranties offered

Recommended by100%of homeowners
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Avatar for RJ Laun Construction
RJ Laun Construction
4.9(
16
)

In business since 1983

Free estimates

A full service residential remodeling company specializing in older homes.

Recommended by100%of homeowners
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Avatar for Bliss Walk-In Tubs
Bliss Walk-In Tubs
5.0(
1
)

In business since 2012

"Everything went well, the process was pretty smooth, very good job as well as the price. No complaints at all."
Recommended by100%of homeowners
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SmartRise Elevator Service Inc
1.0(
1
)

In business since 2009

Free estimates

Emergency services offered

"Horrible company to deal with. They came out to help to bring the elevator to the first floor. It was stuck due to a power outage on the block. They came out at 3pm Thursday and overcharged us overtime and travel time. As you can see from their publish hours 3 pm is within their working hours. They didn't tell us the overtime rate nor tell us that we would be charged over time.The service took under 45 minutes. Smartrise billed us for two hours at 454.00 an hour, total 908.00. When I spoke to Art at the company trying to discuss the proper amount for this service, he used profanity and name calling. Art hung up on me rather than communicate."
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FAQs for basement remodeling projects in West Covina, 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 West Covina, CA homeowners’ guide to basement remodelings

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

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