Get matched with top basement remodelers in Sonoma, CA

Q: What are popular design options for basement remodeling?

• <div><p>Key trends include home gyms, theatre rooms, additional rooms (bedroom/office), and more, with personalized styles reflecting individual preferences.</p></div>

Q: How do I budget for a basement remodel?

• <div><p>The average cost of remodeling a basement is <b>$30 to $75 per square foot</b>. If your space is unfinished and looks like it may need more help, use the higher number when calculating your estimated basement remodeling costs. A good rule of thumb is to add an additional 20% to the top of your estimate to cover any &ldquo;what if&rdquo; situations.</p></div>

Q: Would the newly raised basement ceiling need to be finished?

• <div><p>You can <a href="https://www.angi.com/articles/how-paint-walls-ceiling-and-trim.htm">paint your ceiling</a> or install a drywall ceiling if the ceiling is unfinished, as they take up less headroom than drop ceilings. </p><p>If there are pipes in the way of ceiling installation, you can do one of two things: reroute the pipes or adjust the installation to fit, which will cost extra.</p></div>

Q: What are the hardest parts of finishing a basement?

• <div><p>Roughing in and connecting utilities are the hardest parts of finishing a basement, and they&rsquo;re the parts we typically don&rsquo;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.</p></div>

Q: Can I add a door to my basement?

• <div><p>Yes, you can add a door to your basement&mdash;it might even be required, depending on building codes in your area and whether or not you&rsquo;re using the basement as a bedroom. A <a href="https://www.angi.com/articles/6-questions-ask-basement-waterproofing-contractor.htm">basement contractor</a> can give you some advice on installation and help you add a door to your basement.</p></div>

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Verified Reviews for Basement Remodel pros in Sonoma, CA

*The Angi rating for Basement Remodel companies in Sonoma, 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 Sonoma, 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 May 22, 2026

Reviewed in May 2026
I had a really good experience with RYDR Construction for my bathroom remodel. I worked mostly with the head contractor, Dangiras, and he was organized, easy to reach, and clear about what was happening each step of the way. He kept the project moving and made sure the work was done...
RYDR Construction, LLC
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Reviewed in March 2026
Wes was very helpful with my bedroom remodel. He was clear, concise and efficient. I would be happy to hire him again.
HomeCore Property Services
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Reviewed in March 2026
Im a GC in north Bay Area and do a lot of fine remodeling and custom home buildings. A P plumbing just fits right in as much as the quality of work and great communication. Totally recommend.
AP Plumbing Co
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Reviewed in August 2025
Lorena, Ben and their team from Benlo Remodeling were outstanding. I interviewed 5 companies, and these are the reasons I chose Benlo Remodeling: 1) Lorena and Ben were "no pressure" with no upselling. 2) They were on time and worked with my schedule. 3)They explained in detail...
Benlo Remodeling
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Reviewed in December 2024
Both remodels turned out beautifully. We were very pleased with the end results. We have since done a backyard patio, and we also were pleased with the work done.
Bay Builders, Inc.
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Reviewed in June 2024
We had waited for 20 years to have our kitchen remodeled and we didn't know how to get started. Crystal Oak Builders provided us with an exceptionally great remodel experience. They remodeled our kitchen, laundry area, 1/2 bath, and windows. Their communication was excellent with frequent...
Crystal Oak Builders
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Reviewed in May 2024
They did a total remodel, including new insulation, wiring, plumbing, drywall, flooring, cabinets and finish work. Work was completed in a timely manner, and the men were easy to work with. Juan and Alicia are a good team! They made sure I was happy with every detail to the end. I will...
JA Mejia Construction
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Reviewed in January 2024
Jason was a great communicator-kept me up to date on progress and needed changes. He is a professional. I had him advise on a needed remodel-he brought lots of clarity and cost saving ideas that we will utilize.
Jason Steward
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Reviewed in October 2023
Great group of guys . They did an amazing job ,I had them built my outdoor kitchen and bbq made out for stone. They also removed and replaced all the walls in the living room. We also had them paint my a few of the bed rooms and my wife absolutely loved the remodel that they did in our...
Brothers Construction
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Reviewed in August 2023
The project required a broad knowledge of electrical, plumbing, concrete work, concrete floor staining and finishing, sheet rock installation and all lighting install. I felt extremely comfortable with the knowledge base and quality of work done. The remodel came out fantastic.
GDW Industries
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Find Basement remodelers in Sonoma

Bielefield Construction, Inc.

4.9(

)

Serving Sonoma, 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!"

+54

Response time1 day

4 neighbors recently requested a quote

Recommended by100%of homeowners

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Ovation Restoration, LLC

4.2(

102

)

Serving Sonoma, CA and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"Ovation did a great job installing a new tiled shower in our basement bathroom. They were easy to work with on design and executed exactly what I wanted for a competitive price. However, the project took 2x the estimated time they rarely proactively communicated about timelines or who would be on the job site doing what when."

Breathtaking solid slab granite countertops

+133

Response time10 hrs

Response rate93%

2 neighbors recently requested a quote

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Tocchini Builders Inc.

3.7(

131

)

Serving Sonoma, 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."

23 neighbors recently requested a quote

Recommended by92%of homeowners

Serving Sonoma, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Really great company everything went well and professional"

Response time2 days

Recommended by100%of homeowners

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Alvarado and Son Construction, Inc.

5.0(

)

Serving Sonoma, 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

2 neighbors recently requested a quote

Recommended by66%of homeowners

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Maldonado Jessy Construction

4.3(

)

Serving Sonoma, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Such a great team, I reached out to Maldonado Jessy Construction and was very respectful, kind and helpful for my full bathroom-remodel. We truly are thankful for him to help us with a big project and others as well. The job was done very efficiently and timely."

+25

Recommended by96%of homeowners

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SUNRISE CONSTRUCTION & HOME IMPROVEMENT, INC.

5.0(

)

Serving Sonoma, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

Were a locally owned and operated company that values honesty and integrity and treats your We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!\n

Response time1 day

6 neighbors recently requested a quote

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W OROZCO CONSTRUCTION INC

New to Angi

Serving Sonoma, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Hello everybody my name is will orozco ceo of w orozco construction inc we are here to help you with your house project ADU Remodeling new construction we are a company what we staring the company from bottom we know all about construction the main goal is keep all the costumer happy with all the construction projects clean and safe

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Humes Construction

New to Angi

Serving Sonoma, CA and surrounding areas

Approved

Over 30 years of experience. \nOne call does it all!!

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RP Construction

New to Angi

Serving Sonoma, CA and surrounding areas

Approved

Free estimates

Warranties offered

Credit card accepted

We are a general construction company that manages and oversees residential and commercial projects, coordinating all phases of construction from planning through completion.

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Basement Remodel questions, answered by experts

Key trends include home gyms, theatre rooms, additional rooms (bedroom/office), and more, with personalized styles reflecting individual preferences.

The average cost of remodeling a basement is $30 to $75 per square foot. If your space is unfinished and looks like it may need more help, use the higher number when calculating your estimated basement remodeling costs. A good rule of thumb is to add an additional 20% to the top of your estimate to cover any “what if” situations.

You can paint your ceiling or install a drywall ceiling if the ceiling is unfinished, as they take up less headroom than drop ceilings.

If there are pipes in the way of ceiling installation, you can do one of two things: reroute the pipes or adjust the installation to fit, which will cost extra.

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.

Yes, you can add a door to your basement—it might even be required, depending on building codes in your area and whether or not you’re using the basement as a bedroom. A basement contractor can give you some advice on installation and help you add a door to your basement.

The Sonoma, 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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