Top-rated basement remodelers.

Get matched with top basement remodelers in Washington, MO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Basement remodelers in Washington

Avatar for Richbuilt Basements & Remodeling

Richbuilt Basements & Remodeling

4.75(
4
)
Approved Pro

Richbuilt Basements & Remodeling

4.75(
4
)
Approved Pro
Customers say: Quick response
38 years of experience
Free onsite estimate

My name is Rich Kempa I started this company in 1989. Prior to this I was working as a design draftsmen in many fields including Architecture, electric, plumbing, heating ventilating and air conditioning. I built my first house in 1985 and lived there 15 years until my family outgrew it.Was doing a lot of remodeling in my spare time and was ready to take it on full time. I really do enjoy the work and love to see the finished product. We have finished over 150 basements since then and still counting. Please contact me for a long list of referrals.

"Great. Everything was done as promised."

Dave J on October 2023

My name is Rich Kempa I started this company in 1989. Prior to this I was working as a design draftsmen in many fields including Architecture, electric, plumbing, heating ventilating and air conditioning. I built my first house in 1985 and lived there 15 years until my family outgrew it.Was doing a lot of remodeling in my spare time and was ready to take it on full time. I really do enjoy the work and love to see the finished product. We have finished over 150 basements since then and still counting. Please contact me for a long list of referrals.

"Great. Everything was done as promised."

Dave J on October 2023


Richbuilt Basement & Remodeling

4.80(
5
)
Approved Pro

Richbuilt Basement & Remodeling

4.80(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
37 years of experience

Richbuilt Basement & Remodeling has been finishing basements for more than 25 years. We can take on the project from start to finish. We provide all needed materials, supplies and fixtures. You will have allowances in writing for all fixtures you may want to purchase yourself. We can finish one room or entire basement. If you or a family member has started to finish your basement but just has not had the time or the know how, we can finish what you started. We are professional painters, drywall hangers and tapers. We provide all plumbing and electrical service to local codes.

"Great Work!"

Sai V on February 2023

Richbuilt Basement & Remodeling has been finishing basements for more than 25 years. We can take on the project from start to finish. We provide all needed materials, supplies and fixtures. You will have allowances in writing for all fixtures you may want to purchase yourself. We can finish one room or entire basement. If you or a family member has started to finish your basement but just has not had the time or the know how, we can finish what you started. We are professional painters, drywall hangers and tapers. We provide all plumbing and electrical service to local codes.

"Great Work!"

Sai V on February 2023


"Randy and crew arrived and installed new storm door and front door on front of house. They also installed new French doors in place of our old sliding glass doors downstairs. Loved the work."

Timothy G on January 2026

Transform your home with Power 2 Construction & Remodeling. Our expert team in St. Louis specializes in remodeling and excavating, delivering top-notch service and exceptional results. Contact us today to bring your home projects to life.

"Randy and crew arrived and installed new storm door and front door on front of house. They also installed new French doors in place of our old sliding glass doors downstairs. Loved the work."

Timothy G on January 2026


Avatar for Premier 1 Properties, LLC

Premier 1 Properties, LLC

4.88(
8
)
Approved Pro

Premier 1 Properties, LLC

4.88(
8
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

At Premier 1 Properties, LLC, we solve all of your design, installation, and remodel concerns on custom home remodeling projects.The services that we are known for include Complete basement finishes, flooring work, kitchen remodeling, and bathroom remodeling/renovation in St. Charles County and St Louis County, Missouri. Our other services include: general contracting, full house remodel and restoration, and purchasing old homes for renovation, Providing quality work for our clientele is always our main priority. We service all of St. Charles and West St. Louis County, MO. For more information on the services we provide, contact us today.

"What can I say about Rick, Eric and their crew. They preformed an incredible job on our kitchen remodel. They were prompt, always on time answered all our questions and concerns. The work they preformed was outstanding and very professional. We plan on doing a bathroom remodel in the near future and Premium 1 Properties will be our go to contractor. I highly recommend them for any and all contracting projects. Thank you Rick & Eric for the awesome work you did on our kitchen!"

Rick W on May 2024

At Premier 1 Properties, LLC, we solve all of your design, installation, and remodel concerns on custom home remodeling projects.The services that we are known for include Complete basement finishes, flooring work, kitchen remodeling, and bathroom remodeling/renovation in St. Charles County and St Louis County, Missouri. Our other services include: general contracting, full house remodel and restoration, and purchasing old homes for renovation, Providing quality work for our clientele is always our main priority. We service all of St. Charles and West St. Louis County, MO. For more information on the services we provide, contact us today.

"What can I say about Rick, Eric and their crew. They preformed an incredible job on our kitchen remodel. They were prompt, always on time answered all our questions and concerns. The work they preformed was outstanding and very professional. We plan on doing a bathroom remodel in the near future and Premium 1 Properties will be our go to contractor. I highly recommend them for any and all contracting projects. Thank you Rick & Eric for the awesome work you did on our kitchen!"

Rick W on May 2024


"Tom and his crew were easy to work with. They are trustworthy and listened to my preferences and concerns. They also kept me informed every step of the way. I am happy with my bathroom remodel."

Diane F on February 2023

We are a third generation. Family owned & operated. construction/renovation business that services St.Louis County, St. Charles County, Lincoln, Warren and other surrounding areas.

"Tom and his crew were easy to work with. They are trustworthy and listened to my preferences and concerns. They also kept me informed every step of the way. I am happy with my bathroom remodel."

Diane F on February 2023


Avatar for Nonstop Contracting

Nonstop Contracting

5.00(
6
)
Approved Pro

Nonstop Contracting

5.00(
6
)
Approved Pro
4 years of experience
Free onsite estimate

At Nonstop Contracting, we transform ordinary basements into extraordinary living spaces built for modern life. As cutting-edge basement specialists, we combine innovative design, premium materials, and precision craftsmanship to deliver environments that elevate your entire home. From custom theaters and luxury bars to fitness studios, guest suites, and executive offices, every project is tailored to your lifestyle and built with long-term performance in mind. We utilize advanced moisture-control systems, energy-efficient solutions, and meticulous finishing standards to ensure durability and comfort. Our team operates with transparency, organization, and nonstop communication from concept to completion. We don’t believe in cookie-cutter remodels. We design intentional, high-end spaces that add value, function, and sophistication. Nonstop Contracting — engineering next-level basement living.

"When the job is done right!"

jeff a on February 2026

At Nonstop Contracting, we transform ordinary basements into extraordinary living spaces built for modern life. As cutting-edge basement specialists, we combine innovative design, premium materials, and precision craftsmanship to deliver environments that elevate your entire home. From custom theaters and luxury bars to fitness studios, guest suites, and executive offices, every project is tailored to your lifestyle and built with long-term performance in mind. We utilize advanced moisture-control systems, energy-efficient solutions, and meticulous finishing standards to ensure durability and comfort. Our team operates with transparency, organization, and nonstop communication from concept to completion. We don’t believe in cookie-cutter remodels. We design intentional, high-end spaces that add value, function, and sophistication. Nonstop Contracting — engineering next-level basement living.

"When the job is done right!"

jeff a on February 2026


Avatar for Ethos Building Group, LLC.

Ethos Building Group, LLC.

5.00(
1
)
Approved Pro

Ethos Building Group, LLC.

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Looking to transform your home? Ethos Building Group, LLC is your go-to remodeling expert in St. Louis. With our exceptional craftsmanship and attention to detail, we'll bring your vision to life. Contact us today and let's create the home of your dreams.

"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."

thomas p on June 2024

Looking to transform your home? Ethos Building Group, LLC is your go-to remodeling expert in St. Louis. With our exceptional craftsmanship and attention to detail, we'll bring your vision to life. Contact us today and let's create the home of your dreams.

"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."

thomas p on June 2024


Mueller Contracting LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Mueller Contracting LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2026 years of experience
Free onsite estimate

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.

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.


LSP construction

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

LSP construction

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2026 years of experience

I’m a skilled carpenter providing residential repairs and custom work. I believe in honest work, fair prices, and not cutting corners. If I say I’ll be there, I show up—and I don’t leave a mess behind. I’m building my business on word-of-mouth and repeat customers, which means every job matters. If you want quality work from someone who takes pride in it, I’m your guy.

I’m a skilled carpenter providing residential repairs and custom work. I believe in honest work, fair prices, and not cutting corners. If I say I’ll be there, I show up—and I don’t leave a mess behind. I’m building my business on word-of-mouth and repeat customers, which means every job matters. If you want quality work from someone who takes pride in it, I’m your guy.


Avatar for The Designer Craftsmen

The Designer Craftsmen

5.00(
5
)
Approved Pro

The Designer Craftsmen

5.00(
5
)
Approved Pro
2026 years of experience
Free onsite estimate

Hello there! I'm a Saint Charles/Saint Louis native and an experienced carpenter and remodeller of 17 years! Been in my own business since 2022. I love to do beautiful work at reasonable prices. I am focused on design-minded small construction and carpentry--this means that I am not primarily so focused on flashy features and the newest updates, and more focused on how I can create a project with you that makes sense with your specific house and it's architectural design. I love working with wood the most but really love doing most anything on a home and happy to do handyman work here and there as well. Please reach out so we can start a conversation! I'm happy to offer advice on how to navigate the construction industry or send you phone numbers of other great guys if you need other services. I focus on approachability and a down to earth experience. I love doing good work, i'm easy to deal with and show up when I say I will. Would love to work with you!

Hello there! I'm a Saint Charles/Saint Louis native and an experienced carpenter and remodeller of 17 years! Been in my own business since 2022. I love to do beautiful work at reasonable prices. I am focused on design-minded small construction and carpentry--this means that I am not primarily so focused on flashy features and the newest updates, and more focused on how I can create a project with you that makes sense with your specific house and it's architectural design. I love working with wood the most but really love doing most anything on a home and happy to do handyman work here and there as well. Please reach out so we can start a conversation! I'm happy to offer advice on how to navigate the construction industry or send you phone numbers of other great guys if you need other services. I focus on approachability and a down to earth experience. I love doing good work, i'm easy to deal with and show up when I say I will. Would love to work with you!

...
Showing 1-10 of 409
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.