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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

4 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

Renovation enhances functionality, increases home value, and can add new space for personal or family needs. It typically modernizes older unfinished basements for new uses.

Professional remodelers streamline the process, manage permits, and handle renovations efficiently—significantly mitigating risk while maintaining standards.

You should always use high-quality lumber for your framing in order to ensure it will last the test of time and resist moisture. Use 2-foot by 4-foot lumber that is pressure-treated for your framing.

Unless you have extensive experience in construction work, remodeling a basement is best left to a professional. There are several tasks associated with this project that require exact precision, including:

  • Replacing insulation 

  • Replacing carpet or other flooring 

  • Adding heating and cooling

  • Adjusting or adding walls and doors

  • Altering or adding plumbing elements

If any of these elements is done incorrectly, it could severely impact the quality of your basement remodel and be dangerous. Changing a basement often comes with code safety requirements, like egress windows and proper ventilation. Therefore, leaving it up to a professional is often the best decision.

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.

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.