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

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
10 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Deleon E Hijo Construction
Deleon E Hijo Construction
5.0(
7
)
Basement - Remodel

Serving Petaluma, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Offers commercial services

"Joe, Abel, and Crew did an awesome job building our 28’x8’ Timbertech deck, 25’ elevated on a hillside. Joe worked closely with the Mill Valley permitting office to get the engineering plans approved, and once we got the green light the deck shot right up! We’re extremely happy we chose them to build the deck and would happily recommend for anyone looking at similar projects."
Apartment Remodel
Apartment Remodel
Apartment Remodel
Apartment Remodel
Apartment Remodel

+6

Response time4 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for First String Home Improvement
First String Home Improvement
5.0(
9
)
Basement - Remodel

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%
2 neighbors recently requested a quote
Avatar for Maldonado Jessy Construction
Maldonado Jessy Construction
4.3(
60
)
Basement - Remodel

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 Tocchini Builders Inc.
Tocchini Builders Inc.
3.8(
134
)
Basement - Remodel

Serving Petaluma, 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."
60 neighbors recently requested a quote
Recommended by89%of homeowners
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Basement Remodel questions, answered by experts

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.

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.

If you don’t have a crawl space but have a partial basement you want to make deeper, you can expect to spend a little less—between $40,000 and $90,000 on average. However, if you’re not adding new finished square footage, you won’t see much in the way of ROI.

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.

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.

The Petaluma, CA homeowners’ guide to basement remodels

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