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Best basement remodelers near Placentia, CA

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Top-Rated Basement remodelers in Placentia - Updated Nov 2026

Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
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Basement - Remodel

Serving Placentia, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We hired McCormick Home Builders to remodel our living room, and we are beyond pleased with the result. The team was professional, worked efficiently, and Aris design ideas made a huge difference. The room feels so much brighter and more spacious. This was the best decision we made for our home, and we were already planning our next remodel with them."
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+1

Response time6 hrs
Recommended by17%of homeowners
Home Pro Remodeling & Construction, Inc.
4.1(
31
)
Basement - Remodel

Serving Placentia, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"After calling a few companies, we found Home pro remodeling. Ariel the manager gave us a good offer for the retaining wall, it was the best offer we received compare to other companies ! His guys are super professional, nice and clean. We were very happy with the experience. If you are looking to remodel your home , Home pro remodeling is definitely the best in the area! They are the real deal."
Response time5 days
Recommended by77%of homeowners
Avatar for Saris Building
Saris Building
5.0(
5
)
Basement - Remodel

Serving Placentia, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Saris Building is a family-run general contracting business serving homeowners and property owners throughout the Los Angeles area. We offer new home construction, home additions, ADUs, garage conversions, and kitchen and bathroom remodeling.\n\nWe work closely with our clients, focusing on clear communication, detailed estimates, and quality workmanship. From home improvements to complete builds, we take pride in treating your property with care and keeping you informed throughout the job.\n\nContact us to discuss your project and how we can help bring it to life.

Construct an Office Wall
Avatar for Big boys construction
Big boys construction
New to Angi
Basement - Remodel

Serving Placentia, CA and surrounding areas

Approved

Credit card accepted

Hi, my name is Steven with Big Boys Construction. We are a locally owned and operated company serving the High Desert and surrounding areas. We specialize in a wide range of residential services including painting, flooring, drywall, concrete, and general home improvements.\n\nOur goal is simple — deliver quality work, honest pricing, and reliable service you can count on. We take pride in treating every home like it’s our own, with attention to detail and proper preparation from start to finish.\n\nWhether it’s a small repair or a full renovation, we are committed to making the process smooth and stress-free for our customers. We look forward to earning your business and bringing your vision to life.\n

Full kitchen remodel
Vinyl flooring
Vinyl flooring
Vinyl flooring
Avatar for SS CONSTRUCTION & LANDSCAPE INC
SS CONSTRUCTION & LANDSCAPE INC
5.0(
1
)
Basement - Remodel

Serving Placentia, CA and surrounding areas

Approved

In business since 2018

Free estimates

Offers commercial services

"Shu and his crew did a great job. They protected my staircase and created barriers to separate the work and the rest of the house. They were always on time and they did a great job. Very pleased w the workmanship and the result. Can’t go wrong w Shu. A reliable contractor."
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Basement Remodel FAQs, answered by experts

It’s less expensive to finish your basement than it is to build an addition to your home. The average cost to refinish a basement is $32,000 (between $7 and $23 per square foot) while building an addition to your home costs $50,325 ($80 to $210 per square foot). Depending on the size of your basement and other factors, like moving plumbing and electrical, refinishing a basement is a more cost-effective option in most cases.

A finished basement does not always count as square footage, as this varies by state regulations. In areas that allow below-grade spaces to be included in a home's official square footage, the basement must typically meet certain conditions. These conditions often include having a functional egress and being a livable space with flooring, finished walls, and temperature control. To be certain, contact your local assessor to confirm your area's specific policies regarding basement square footage.

Key trends include home gyms, theatre rooms, additional rooms (bedroom/office), and more, with personalized styles reflecting individual preferences.

It is generally more affordable to finish a basement than an attic, though it ultimately depends on how you plan to use the space. The average cost to finish a basement ranges from $7 to $23 per square foot, while attic renovation costs $30 to $60 per square foot. However, a simple attic conversion to a storage space will cost significantly less.

Yes, you can add a bathroom to an unfinished basement, but you’ll want to take proper precautions if doing so. As with any bathroom addition, you’ll need to make sure that it’s approved by local building authorities first. With unfinished basements, you especially need to keep an eye on proper ventilation practices.

The Placentia, CA homeowners’ guide to basement remodels

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