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Find Basement remodelers in Petaluma

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

Serving Petaluma, 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
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Tocchini Builders Inc.
Tocchini Builders Inc.
3.7(
130
)

Serving Petaluma, CA and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Leo Tocchini responded immediately..same day as my Call regarding smell and potential moisture issues in crawl space of manufactured home. He monitored a number of areas around my home and in various places of crawl space for moisture levels. I was reassured when his monitor indicated within normal range. We then addressed seismic retrofitting procedure initiated by me for a potential future project. Leo explained what was involved and answered my questions thoroughly. I noted he is kind, attentive, excellent at clarifying procedures and rates. I inquired about the full scope of his work for future projects for myself and for a friend who is currently desiring to live in this area and will need to have his potential home inspected and assessed thoroughly before purchasing. I recommend this company highly. I think it is a rare Gem given myexperiences having purchased multiple properties during my lifetime. A 10 in my view."
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for First String Home Improvement
First String Home Improvement
5.0(
9
)

Serving Petaluma, CA and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Skylar does EVERYTHING I have ever requested; bulding furniture to perfection, installation of just about anything, lighting, window treatments, bathroom apparatus, doors and more. He can fix everything I have ever asked; dishwasher, windows, doors, floors, and more. AND you cannot even tell his been here by the time he leaves, everything is cleaned up. He is always on time. Lets put it this way; I will wait no matter how long for him to be the only person who handles my many requests."
Mailbox Repair
Mailbox Repair
Fence Install
Door Fix
Door Fix

+7

Response time2 hrs
Response rate95%
1 neighbors recently requested a quote
Avatar for Maldonado Jessy Construction
Maldonado Jessy Construction
4.3(
60
)

Serving Petaluma, 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."
Maldonado Jessy Construction
Maldonado Jessy Construction
Maldonado Jessy Construction
Maldonado Jessy Construction
Maldonado Jessy Construction

+25

Recommended by96%of homeowners
Avatar for Deleon E Hijo Construction
Deleon E Hijo Construction
5.0(
5
)

Serving Petaluma, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Offers commercial services

"Dedicated & reliable local professionals. Joe and his team were punctual, knowledgeable, personable and most of all, honest! The job was completed in time and we even extended the contract to add additional services which were equally completed with competence. We are very happy to have met them all. Highly recommended."
Apartment Remodel
Apartment Remodel
Apartment Remodel
Apartment Remodel
Apartment Remodel

+6

Response time7 hrs
Response rate85%
5 neighbors recently requested a quote
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FAQs for basement remodeling projects in Petaluma, CA

Finishing a basement turns unused square footage into livable space and returns up to 70% of what you spend when you sell your home. Beyond that resale boost, you gain a playroom, home office, or guest suite you can start enjoying right away. That mix of daily comfort and solid return on investment (ROI) makes basement finishing one of the smartest upgrades you can tackle.

In some parts of the country—especially lots on swamps, high water tables, or other wetlands—local codes prohibit basements. Saturated soil puts constant pressure on foundation walls and lets water seep in faster than any sump pump can handle. 

If your property sits on waterlogged ground, building on a slab or crawl space is often safer, more affordable, and code-compliant.

Most basements wrap up in four to eight weeks. Framing takes three to five days, with electrical and plumbing rough-ins following over the next week. Add five days for drywall, two to three for flooring, and another week for paint, trim, and punch-list items. 

Delays can happen if materials run late or your contractor’s calendar is packed, so build in a little cushion when you plan.

Whether a finished basement counts toward your home’s official square footage depends on local rules. Many areas only include below-grade space if it has code-approved egress, fully finished walls, ceilings, and floors, plus consistent heating. 

Check with your local assessor or building department before you start; meeting those standards can affect taxes, appraisals, and resale value.

Building codes require a checklist: dedicated heat and electrical service, a code-approved stairway, and at least one egress window or exterior door. Walls, ceilings, and floors must be fully finished and meet insulation, ventilation, and fire-separation standards. If you add a bedroom, you’ll also need a closet, proper clearances, and safe exits. If you change the layout later, be ready to update the space so every new room still meets today’s code.

The Petaluma, CA homeowners’ guide to basement remodelings

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