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Best basement remodelers near San Marcos, CA

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Top-Rated Basement remodelers in San Marcos - Updated Nov 2026

Avatar for Fausto Construction
Fausto Construction
5.0(
98
)
Basement - Remodel

Serving San Marcos, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"I hired fausto construction inc. to remodel 3 bathrooms in our home. He met our expectations and every aspect of the work. I highly recommend this general contractor for all your remodeling"
Response time1 day
5 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Basement - Remodel

Serving San Marcos, 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 San Marcos, 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 R C B CONSTRUCTION
R C B CONSTRUCTION
5.0(
5
)
Basement - Remodel

Serving San Marcos, CA and surrounding areas

Approved

In business since 1978

Free estimates

Small jobs welcome

"I can’t say enough good things about Jake and his construction company. He recently completed an addition on our home, and the entire experience was outstanding from start to finish. Jake was professional, dependable, knowledgeable, and took a lot of pride in his work. He kept us informed throughout the project, paid attention to the details, and made sure everything was done right instead of cutting corners. The quality of the finished addition exceeded our expectations and looks like it was always meant to be part of the house. It’s hard to find a contractor you can truly trust, but Jake is one of them. He showed up, followed through on what he promised, and treated our home with respect. We couldn’t be happier with how everything turned out. I would recommend Jake and his company without hesitation to anyone looking for quality construction work. Five stars all the way — we would absolutely hire him again!"
New construction home
New construction home
New construction home
New construction home
New construction home

+8

3 neighbors recently requested a quote
Avatar for Big boys construction
Big boys construction
New to Angi
Basement - Remodel

Serving San Marcos, 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 R A Crandall Construction INC
R A Crandall Construction INC
5.0(
1
)
Basement - Remodel

Serving San Marcos, CA and surrounding areas

Approved

In business since 1983

Free estimates

Credit card accepted

"Had stucco job done from water damage and fence gates fixed. All work was done professionally and prices were awesome. With this company you can’t go wrong. Specially, when you feel like you’re trying to find an honest, hard working person to help you."
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26 neighbors recently requested a quote
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Basement Remodel FAQs, answered by experts

Roughing in and connecting utilities are the hardest parts of finishing a basement, and they’re the parts we typically don’t recommend doing as a DIY project. Unfortunately, your finishing timeline can be extended by weeks while you wait for contractors and inspectors to install electrical wiring, plumbing lines, and heating/cooling equipment and carry out inspections.

It is common for a contractor to ask for a down payment before starting a project, especially for jobs that require purchasing materials and equipment or hiring a crew. The deposit amount can range from 10% to 50% of the total job cost. While a request for up to 50% is not unusual, a contractor should not ask for more than that, and you should never pay for a project in full before the work has begun. To protect yourself, always discuss payment terms before starting and have a written contract that outlines the project timeline and expectations. Additionally, be sure to hire reputable contractors and check their licensing and insurance before the project begins.

Save money on your basement finishing project by making cost-effective decisions such as minimizing structural changes and avoiding costly construction revisions. DIY simpler tasks such as painting or basic cleanup to reduce labor costs. You can also opt for energy-efficient fixtures and materials that may qualify for rebates or tax incentives.

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

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.

The San Marcos, CA homeowners’ guide to basement remodels

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