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Top-Rated Basement remodelers in Saint Helena - Updated Nov 2026

Avatar for Tocchini Builders Inc.
Tocchini Builders Inc.
3.8(
136
)
Basement - Remodel

Serving Saint Helena, CA and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Leo did a great job redoing our laundry area. They did a great job and went above and beyond to meet the requirements of the job. I'd recommend Leo to anyone looking to get some home projects done."
53 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for THREE LIONS REMODELING
THREE LIONS REMODELING
New to Angi
Basement - Remodel

Serving Saint Helena, CA and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! \n

3 neighbors recently requested a quote
Bielefield Construction, Inc.
New to Angi
Basement - Remodel

Serving Saint Helena, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

Our company prides itself on reliability, integrity and quality work. When Bielefield Construction, Inc., is hired, we make it a point to provide the highest level of customer service. With over 30 years of experience, we specialize in custom wood and trim work, additions, remodels and deck building. Specializing in stair railings and newel post installations. If you are looking to turn your home into your dream home, call us today! We look forward to earning your business. \n

1 neighbors recently requested a quote
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Basement Remodel FAQs, answered by experts

Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms. 

Finishing a basement is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.

Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.

You should plan on waiting at least a year and ideally two to three years after construction before finishing your basement. This will give the foundation time to settle in response to the weight of your home and the expansion of the surrounding soil. You can then repair your foundation and seal any cracks as needed before finishing it to reduce your risk of future leaks or other issues.

Building up by adding square footage to the top of your home is often less expensive than adding a basement, but it depends on the specifics of your house, your property, and supply costs. Because building a basement requires excavation, it can be a more expensive option than building up.

If you don’t have a crawl space but have a partial basement you want to make deeper, you can expect to spend a little less—between $40,000 and $90,000 on average. However, if you’re not adding new finished square footage, you won’t see much in the way of ROI.

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.

The Saint Helena, CA homeowners’ guide to basement remodels

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