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Find Basement remodelers in Washington

Avatar for JP Sheehan Construction, LLC
JP Sheehan Construction, LLC
5.0(
31
)

Serving Washington, MO and surrounding areas

Angi Approved

In business since 1992

Free estimates

Credit card accepted

"We hired JP Sheehan to demolish an old barn on our farm. The guys who were on site were prompt and demolished the building leaving no trace the building even existed once it was completed. Highly recommend."
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Tittel Construction
Tittel Construction
5.0(
11
)

Serving Washington, MO and surrounding areas

Angi Approved

In business since 2024

Free estimates

Emergency services offered

"Conner was the ultimate professional. He work was of the highest quality. He wad extremely polite and showed up on time. He gave us a quote and he stuck to it, Not only did he do a great job for the price he quoted, but he also finished before the time he quoted. I would highly recommend Conner and his Company. "
Shed build
Staircase rebuild for customer
Decorative ceiling
Fascia and siding
Response time2 days
Response rate91%
8 neighbors recently requested a quote
Avatar for Nonstop Contracting
Nonstop Contracting
5.0(
7
)

Serving Washington, MO and surrounding areas

Angi Approved

In business since 2022

Credit card accepted

"Nonstop Contracting did an amazing job from start to finish. The crew was professional, on time, and the quality of work was outstanding. They paid attention to every detail and made sure everything was done right. If you?re looking for reliable contractors who actually care about the work they do, I highly recommend them."
Basement Ceiling
Basement Ceiling
Basement Lighting
Basement Lighting
Basement Lighting

+1

Avatar for Raymond’s Repair & Renovations’s LLC
Raymond’s Repair & Renovations’s LLC
5.0(
5
)

Serving Washington, MO and surrounding areas

Angi Approved

In business since 2016

Free estimates

Warranties offered

Welcome to Raymond's repair and renovationsllc. We proudly provide the highest quality of service and craftsmanship for each aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you and making your vision a reality. Give us a call, text or email today, and let us get started!

Indoor sauna
Indoor sauna
Indoor sauna
Indoor sauna
Indoor sauna

+1

Avatar for Ethos Building Group, LLC.
Ethos Building Group, LLC.
5.0(
1
)

Serving Washington, MO and surrounding areas

Angi Approved

Credit card accepted

Customers say: Quick response

"From the beginning of my project in January 2024, I have never regretted my decision to choose Ethos Building Group LLc. Jeh Johnson and his partner Tracy Herod have worked diligently to execute the itemized proposal that began this project to rehab, restore, and rebuild my home at 607 Wilmington ave. St. Louis MO 63111. An incredible number of tradesmen and tradeswomen have done their individual tasks all on a schedule professionally overseen by Jeh. These liscensed and masters of their trades worked alongside Jeh who if necessary stepped in and aided e these individuals. His overall expertise has brought my home to this point. One must keep in mind that a burnout like my home is an unusal job for Ethos Buildig Group LLc to accept. Yet at every stage my home has been given the same careful and thorough attention as their larger jobs. And despite some push back with my insurance company every thing has proceeded smoothly and orderly manner given the inevitable supply chain delays. Jeh Johnson is an affable young man who has facilitated all phases my prject and has even taken time to educate me on all the intricacies involved in a project such as mine. I cannot think of any single word to describe my experience with Ethos Building Group LLc but the forgoing will have to suffice. Thanks you for your kind attention. Stay safe and make a point of telling those who you find dear just what they mean to you."
Builders - Garages/Barns/Sheds Project
Insurance
Clayton Basement & Addition
Bath / Walk in Shower
Egress windows

+43

Response time2 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Mueller Contracting LLC
New to Angi

Serving Washington, MO and surrounding areas

Angi Approved

Free estimates

Small jobs welcome

Offers commercial services

We are a small, family based company that provides excellent communication, and excellent work. We have a high attention to detail. We would be appreciative of your work. We have been in the construction industry for 20 years. We can provide select demolition, small structural demolition, and clean up services.

1 neighbors recently requested a quote
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FAQs for basement remodeling projects in Washington, MO

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 Washington, MO homeowners’ guide to basement remodelings

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