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Find Addition to existing structure builders in Barnhart

Avatar for Power 2 Construction & Remodeling

Power 2 Construction & Remodeling

10148 Buckeye Rd
4.72(
29
)
•Approved Pro

Power 2 Construction & Remodeling

10148 Buckeye Rd
4.72(
29
)
•Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
121 local quotes requested

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.

"We have been completely satisfied and impressed with the planning and subsequent work provided by Power 2 Construction! They truly listened to every question, concern, and vision I had for our project. They were polite and conscientious throughout, the subcontractors they hired for the project above par. We never felt uneasy with anyone that entered our home. The end result is absolutely gorgeous and exceeded my own expectations! We will be pursuing a second phase to our project and look forward to working with Power 2 Construction through completion!"

Tammy B on May 2025

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.

"We have been completely satisfied and impressed with the planning and subsequent work provided by Power 2 Construction! They truly listened to every question, concern, and vision I had for our project. They were polite and conscientious throughout, the subcontractors they hired for the project above par. We never felt uneasy with anyone that entered our home. The end result is absolutely gorgeous and exceeded my own expectations! We will be pursuing a second phase to our project and look forward to working with Power 2 Construction through completion!"

Tammy B on May 2025

MJ Buildings

4001 Highway P
5.00(
4
)
•Approved Pro

MJ Buildings

4001 Highway P
5.00(
4
)
•Approved Pro
Super Service Award
Customers say: Quick response
17 local quotes requested
14 years of experience

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! Book with us online or feel free to give us a call today!

"Very nice guys and willing to work with you. Photos coming soon"

Robin B on February 2025

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! Book with us online or feel free to give us a call today!

"Very nice guys and willing to work with you. Photos coming soon"

Robin B on February 2025

Avatar for RDB CONSTRUCTION LLC

RDB CONSTRUCTION LLC

1600 Lakeview Drive
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

RDB CONSTRUCTION LLC

1600 Lakeview Drive
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
2025 years of experience
Free onsite estimate

As 30+ years experience carpenters, we are always prepared to take on your projects with precision and care. We pride ourselves on being courteous and polite, ensuring a positive experience from start to finish. Our approach involves actively listening to your needs and preferences to deliver tailored solutions. ???? We understand the importance of clear communication and collaboration to bring your vision to life. From the initial consultation to the final touches, We are dedicated to providing exceptional craftsmanship. ? We are ready to start, so contact me today.

As 30+ years experience carpenters, we are always prepared to take on your projects with precision and care. We pride ourselves on being courteous and polite, ensuring a positive experience from start to finish. Our approach involves actively listening to your needs and preferences to deliver tailored solutions. ???? We understand the importance of clear communication and collaboration to bring your vision to life. From the initial consultation to the final touches, We are dedicated to providing exceptional craftsmanship. ? We are ready to start, so contact me today.

Avatar for Beaty Home Improvements

Beaty Home Improvements

562 Knob Hill Drive
4.62(
583
)
•Approved Pro

Beaty Home Improvements

562 Knob Hill Drive
4.62(
583
)
•Approved Pro
Super Service Award
Customers say: Super punctual
1167 local quotes requested
19 years of experience

Beaty Home Improvements has been providing professional quality remodeling services in St. Louis for over 20 years. Our attention to detail ensures that every kitchen and bathroom project is completed to the highest standard. Customer satisfaction is our top priority. Contact us today for all your home improvement needs.

"The pro completed it efficiently. "

Claudia C on October 2025

Beaty Home Improvements has been providing professional quality remodeling services in St. Louis for over 20 years. Our attention to detail ensures that every kitchen and bathroom project is completed to the highest standard. Customer satisfaction is our top priority. Contact us today for all your home improvement needs.

"The pro completed it efficiently. "

Claudia C on October 2025

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
32 local quotes requested

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

Le Roy Construction & Remodeling

707 N Illinois St
4.75(
4
)
•Approved Pro

Le Roy Construction & Remodeling

707 N Illinois St
4.75(
4
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
42 local quotes requested

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Everything went great. Job completed on time and clear communication and expectations throughout."

John k on August 2021

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Everything went great. Job completed on time and clear communication and expectations throughout."

John k on August 2021

Avatar for Gb contracting

Gb contracting

Located In Ballwin
5.00(
1
)
•Approved Pro

Gb contracting

Located In Ballwin
5.00(
1
)
•Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
93 local quotes requested

We are a general construction company that specializes in home remodeling and outdoor spaces. The end goal for every one of our projects is to deliver a high-quality space that is on time and on budget.

"Great company, great work and a great price! They extended a patio and built a roof over it. We are hiring them again. Their work was top-notch and the price was fair and reasonable."

dawn d on October 2024

We are a general construction company that specializes in home remodeling and outdoor spaces. The end goal for every one of our projects is to deliver a high-quality space that is on time and on budget.

"Great company, great work and a great price! They extended a patio and built a roof over it. We are hiring them again. Their work was top-notch and the price was fair and reasonable."

dawn d on October 2024

Avatar for Assiduous Contracting LLC

Assiduous Contracting LLC

50 S Schlueter Ave
5.00(
18
)
•Approved Pro

Assiduous Contracting LLC

50 S Schlueter Ave
5.00(
18
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
102 local quotes requested

Husband and wife team specializing in kitchen remodels, bathroom remodels, cabinet installation, crown molding, flooring and countertops. Offering 30-years experience in residential services. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!

"I was very impressed with the remodeling. Mr Ryan was extremely pleasant during the process. Him and his worker not only maintained a high degree of professionalism, was always on time, made sure they cleaned up at the end of the day, and finished the project in a timely manner. They took extra precaution during this pandemic outbreak to insure my safety by taking their temperatures each morning. I can not tell you how much he impressed me and highly recommend him for any home improvement project you are considering."

Cecilia L on November 2020

Husband and wife team specializing in kitchen remodels, bathroom remodels, cabinet installation, crown molding, flooring and countertops. Offering 30-years experience in residential services. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!

"I was very impressed with the remodeling. Mr Ryan was extremely pleasant during the process. Him and his worker not only maintained a high degree of professionalism, was always on time, made sure they cleaned up at the end of the day, and finished the project in a timely manner. They took extra precaution during this pandemic outbreak to insure my safety by taking their temperatures each morning. I can not tell you how much he impressed me and highly recommend him for any home improvement project you are considering."

Cecilia L on November 2020

Avatar for Terbrock Remodeling & Construction

Terbrock Remodeling & Construction

200 Cuivre Point Ln
4.63(
65
)
•Approved Pro

Terbrock Remodeling & Construction

200 Cuivre Point Ln
4.63(
65
)
•Approved Pro
Customers say: Super punctual
192 local quotes requested
75 years of experience

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

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 Perfect Choice Home Solutions Your Authorized Bath Planet Dealer of St. Louis

Perfect Choice Home Solutions Your Authorized Bath Planet Dealer of St. Louis

2424 MO-94 South Outer Rd
4.78(
129
)
•Approved Pro

Perfect Choice Home Solutions Your Authorized Bath Planet Dealer of St. Louis

2424 MO-94 South Outer Rd
4.78(
129
)
•Approved Pro
Customers say: Terrific value
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
3428 local quotes requested

Complete Bath and 2 Day Remodeling services offered: also roofing, siding, windows, and gutter/gutter cover installations. Bath Planet has been the go-to St. Louis bathroom remodeling company for over 17 years. From replacement shower surrounds to bathtubs that are designed to fit perfectly over your existing tub, our experienced team has what it takes to provide you with a bathroom that is beautiful and extremely easy to maintain. Not only do we believe very strongly in providing quality, long-lasting products, we also believe in providing an outstanding customer experience. We offer free estimates, and we can complete your project in as little as one day. We also have energy Star double pane windows, beautiful vinyl siding looks like real wood, roofing of all different styles.

"This company absolutely sucks!!! They will not stop harassing me with phone calls. They've called about 15 times, and I've told them each and every time that i no longer need help. And they won't stop!!! I had to report them to angis list. I would have reported them to BBB but they dont seem to exist anywhere except here and some website called Houzz where their account is suspended. I dont think this is a real company. Beware!!!!!"

Courtney M on July 2025

Complete Bath and 2 Day Remodeling services offered: also roofing, siding, windows, and gutter/gutter cover installations. Bath Planet has been the go-to St. Louis bathroom remodeling company for over 17 years. From replacement shower surrounds to bathtubs that are designed to fit perfectly over your existing tub, our experienced team has what it takes to provide you with a bathroom that is beautiful and extremely easy to maintain. Not only do we believe very strongly in providing quality, long-lasting products, we also believe in providing an outstanding customer experience. We offer free estimates, and we can complete your project in as little as one day. We also have energy Star double pane windows, beautiful vinyl siding looks like real wood, roofing of all different styles.

"This company absolutely sucks!!! They will not stop harassing me with phone calls. They've called about 15 times, and I've told them each and every time that i no longer need help. And they won't stop!!! I had to report them to angis list. I would have reported them to BBB but they dont seem to exist anywhere except here and some website called Houzz where their account is suspended. I dont think this is a real company. Beware!!!!!"

Courtney M on July 2025

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FAQs for addition to existing structure building service projects in Barnhart, MO

Yes, hidden rooms are legal, as long as they meet all local building regulations. If you sell your house, most states require homeowners to disclose full houseplans, which would include any hidden rooms.

If your secret room is a safe room, it should contain a means of communication aside from a cell phone, such as a shortwave radio. You should also have plenty of drinking water, a portable generator, emergency food supplies, blankets, pillows, flashlights, batteries and a first aid kit.

Any time you update your home’s square footage, you increase its value, but a secret room is a niche feature that doesn't rank high on every buyer’s list of must-haves. Investing your money in remodeling more common living areas like bedrooms, bathrooms, or kitchens will have a higher ROI than adding a secret room. Many secret rooms can act as entertainment spaces (think a game room or wine cellar) or quiet spaces (a library or study), so when building your secret room you may want to consider its versatility for when you’re ready to sell.

The Barnhart, MO homeowners’ guide to addition to existing structure building services

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

See all articles
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    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.