Top-rated basement remodelers.

Get matched with top basement remodelers in Cotati, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your basement remodel project in Cotati, CA?

Select your specific project to find the pro for you.

Verified Reviews for Basement Remodel pros in Cotati, CA

*The Angi rating for Basement Remodel companies in Cotati, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Remodel needs.

*The HomeAdvisor rating for Basement Remodel companies in Cotati, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Remodel needs.

Last update on June 22, 2026

Find Basement remodelers in Cotati

Avatar for Bielefield Construction, Inc.
Bielefield Construction, Inc.
4.9(
8
)

Serving Cotati, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"We found Bielefeld Construction on Home Advisor and was surprised when Ray responded because we hadnâ t previously had a lot of luck on Home Advisor. We hired them for a master bedroom remodel and are very happy with the final outcome. We made a few changes here and there and Ray was very accommodating. All employees and subcontractors were pleasant, considerate and meticulous in what they brought to the project. We would definitely recommend Bielefeld Construction and use them again if the need arises. 5 star organization!"
Finished Fireplace Facade
Kitchen After
Kitchen After
ADA Shower Area
Before fireplace facade

+54

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for D I Y Design & Consulting
D I Y Design & Consulting
4.9(
7
)

Serving Cotati, CA and surrounding areas

Approved

In business since 1990

Free estimates

Offers commercial services

"I am very pleased with my new shower. Marc kept me informed of the entire project. His crew was always on time, hard workers and kept the work area clean."
Response time1 day
Response rate92%
3 neighbors recently requested a quote
Request Quote
Avatar for Tocchini Builders Inc.
Tocchini Builders Inc.
3.7(
131
)

Serving Cotati, CA and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Kramer’s home-improvement did a fantastic job remodeling my home. Many compliments on the completed project.Leo and his crew were fantastic and very professional. Anything I needed done they accommodated and did a beautiful Job of it. Highly recommend very reasonable pricing."
17 neighbors recently requested a quote
Recommended by92%of homeowners
Request Quote
Avatar for First String Home Improvement
First String Home Improvement
5.0(
9
)

Serving Cotati, CA and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"I highly recommend Skyler, he is such a professional handyman, he does the work very quickly and you can trust him. He will come in advance with professional equipment, remove the wooden floor with tools, and remove the nails exposed to the outside to avoid safety hazards. He is also very nice, cheerful and patient. It was a great experience to work with him."
Mailbox Repair
Mailbox Repair
Fence Install
Door Fix
Door Fix

+7

Response time2 hrs
Response rate95%
Recommended by85%of homeowners
Request Quote
Avatar for Alvarado and Son Construction, Inc.
Alvarado and Son Construction, Inc.
5.0(
3
)

Serving Cotati, CA and surrounding areas

Approved

In business since 2018

Free estimates

Offers commercial services

"He is very conscientious, accurate and on time! He keeps his promises and does excellent work!"
Response time7 hrs
3 neighbors recently requested a quote
Recommended by66%of homeowners
Request Quote
...
Showing 1-10 of 118
Basement Remodel questions, answered by experts

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.

A finished basement must have a heat and electrical supply with an entrance that meets building code requirements, such as a stairwell to the home's main living space. It often must include finished walls, ceilings, and floors. If the finished basement includes a bedroom, it should have a heat source, an egress window, and a closet.

Remodeling, as opposed to finishing, means altering an already finished basement by adding a bathroom, bedroom, or living area.

Building a bar in the basement will likely add value to your home, although it’s unlikely that you’ll see a significant return on investment (ROI) unless you plan on using the space for you and your guests. If you think you’ll use the area frequently, though, it’s probably worth the investment, and you should see a bump in value if or when you sell your property.

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable. 

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

The Cotati, CA homeowners’ guide to basement remodels

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

See all articles