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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 August 09, 2026

Find Basement remodelers in Cotati

Avatar for Bielefield Construction, Inc.
Bielefield Construction, Inc.
4.9(
8
)
Basement - Remodel

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
10 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for First String Home Improvement
First String Home Improvement
5.0(
9
)
Basement - Remodel

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%
2 neighbors recently requested a quote
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Avatar for Alvarado and Son Construction, Inc.
Alvarado and Son Construction, Inc.
5.0(
3
)
Basement - Remodel

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 time1 hour
Recommended by66%of homeowners
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Avatar for Tocchini Builders Inc.
Tocchini Builders Inc.
3.8(
134
)
Basement - Remodel

Serving Cotati, 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."
54 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Grade A Builders
Grade A Builders
5.0(
1
)
Basement - Remodel

Serving Cotati, CA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

Drywall Dynamics is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.\n\n\nFamily Owned and Operated \n\n36 years of experience. \n\nemergency Hours available upon request

Response time7 hrs
Response rate87%
1 neighbors recently requested a quote
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Basement Remodel questions, answered by experts

Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.

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.

Permits may be required for major repairs, structural work, or electrical and plumbing restoration after a flood. Check with your local building department to determine permit requirements and associated fees for your flooded basement cleanup project. Obtaining the correct permits helps ensure work is done safely and up to code.

A walkout basement is considered to be partially below grade because at least one wall is entirely exposed. In some cases and in specific municipalities, inspectors and appraisers will still count walkout basements as below grade, which means the space can’t serve as living space or be rented out. If you intend on using the area as living space or a separate apartment, you should check with your local building department to make sure it’s legal to do so.

Walkout basements are not generally included in a home’s square footage, although they may be if they meet certain conditions that depend on local regulations. A finished walkout basement used as a living space may be counted toward square footage in some locations as long as all codes for livable space are met.

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.

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