Get matched with top basement waterproofing pros in Byram, MS

Q: Can underfloor insulation cause moisture and mold?

• <div><p>Underfloor insulation alone will not cause moisture and mold, but improper installation can. Although the purpose is to seal any drafts, your subfloor still needs ventilation. If you seal the area too tightly and prevent all airflow, this can cause moisture to get trapped. This moisture eventually leads to mold and&mdash;if your floors are wood&mdash;rotting.</p></div>

Q: What's the difference between a vapor barrier and insulation?

• <div><p>A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air&mdash;and sometimes moisture&mdash;that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won&rsquo;t get damaged from moisture, like rigid foam board or expanding spray foam insulation.</p></div>

Q: Is it worth putting a dehumidifier in a crawl space?

• <div><p>Yes, if your crawl space is prone to humidity, a dehumidifier can help keep it dry. For use in a crawl space, you&rsquo;ll need a high-capacity and high-efficiency dehumidifier with built-in air filtration. It&rsquo;s also wise to purchase one with a self-draining feature. Otherwise, you&rsquo;ll need to climb into the crawl space to empty the dehumidifier.</p></div>

Q: Is it okay for a crawl space to be wet?

• <div><p>No, you don&rsquo;t want your crawl space to be wet because water and even moisture in the air under your home can attract insects and rodents, decrease your indoor air quality, increase your energy bills, promote mold growth, and even lead to structural damage. If you notice any signs of water or humidity in your crawl space, you should get the issues addressed immediately by contacting a professional. They can remove moisture and will know <a href="https://www.angi.com/articles/how-to-waterproof-your-basement.htm">how to waterproof your basement</a> to prevent ongoing problems. </p></div>

Q: What are the most expensive parts of finishing a basement?

• <div><p>Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance. </p><p>The <a href="https://www.angi.com/articles/what-average-cost-add-exitwalk-out-my-finished-basement.htm">cost of a walkout basement</a> can be anywhere from $5,000 to $35,000.</p></div>

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Verified Reviews for Basement Waterproofing pros in Byram, MS

*The Angi rating for Basement Waterproofing companies in Byram, MS is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Byram, MS is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on September 14, 2026

Reviewed in September 2026
They did an amazing job fixing my chimney flashing and also built a cricket so water will flow better. So happy with the work they have done! Recommend 100%
Alfa Construction LLC
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Reviewed in August 2025
Mr. Taylor and his crew constructed a concrete parking spot for a vehicle next to the driveway at my residence. They were efficient, courteous and professional throughout the project and more importantly, in my opinion, the job was done right. Would recommend.
Larry Taylor Construction
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Reviewed in March 2024
Montel and his crew has pressure washed many properties of mine over the years. They have done everything from gutter cleaning to fences to driveways and houses. He has always done outstanding work. 10/10 recommend giving him your business! You will not be disappointed!
Pressure Pros of Ms, LLC
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Reviewed in January 2024
This Company has great knowledge on every aspect of what I wanted to do. everybody was very profession with the remolding of my whole house. I also got drainage work done in 2018 and still no problems. I would recommend to company to family and friend . This company rates 10.10
Hall Engineering, LLC
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Reviewed in November 2023
The workers went way over and beyond they showed up on time they cleaned up after themselves this was my first time using a contractor I was very nervous but Mike Wilson assured me that everything was going to be fine and he walked me through everything I know if I ever need a contractor again...
Wilson Construction
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Reviewed in May 2023
I was very impressed with Lee and Kim. They did an excellent job waterproofing our basement! They were so knowledgeable about the work and were able to answer any questions we had. I would totally recommend them to anyone who is looking to waterproof their basement!
Southern Affordable Mold Busters
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Reviewed in September 2022
Mr. Henry Parker and his crew replaced a culvert underneath our driveway and repaired the driveway with concrete above it. He came out the day he promised, started our project within a few days, completed the work on time, and actually did a better job than what we were expecting. His crew...
HLP Concrete Finishing
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Reviewed in August 2022
Precision Spray Foam of Mississippi LLC did everything they said they would and did a good job!
Precision Spray Foam of Mississippi LLC
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Reviewed in June 2022
First of all, these guys are absolutely fantastic! Just bought our home, and the first night we took a shower in the upstairs bathroom? It leaked water on to the ceiling of the room below it. Sent David Cooper an Angi’s list message late at night, he got back to me FIRST thing at 630am. They got...
Cooper's Plumbing Service LLC
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Reviewed in April 2022
We hired these guys to do a French drain next to a building along with spreading gravel and a little concrete work. I've been burned in the past by crews but this father and son team are the best! I just wish I would have found them years ago. Top notch service and great guys
B & B Construction
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Find Basement waterproofing pros in Byram

Midsouth Crawlspace Solutions, LLC

5.0(

)

Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Byram, MS and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Jamie was very thorough in his explanation. Sadly this project will have to wait quite a while due to the cost."

Response time7 hrs

22 neighbors recently requested a quote

Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Byram, MS and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Excellent customer service. They were highly knowledgeable and took time to explain what needed to be done. They arrived promptly and didnâ t dawdle on the job. I highly recommend them and will use them again in the future."

Response time9 hrs

9 neighbors recently requested a quote

Recommended by98%of homeowners

Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Byram, MS and surrounding areas

Approved (Corporate)

In business since 2025

Free estimates

Warranties offered

"Stanley came out and took time to thoroughly inspect our foundation and proposed a solution to level the floors and waterproof the crawl space. Really appreciated his thorough service and clear advice."

+17

123 neighbors recently requested a quote

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Drain Master 24/7, LLC

4.1(

)

Basement Drainage Channels - Repair

Serving Byram, MS and surrounding areas

Approved

In business since 1993

Free estimates

Credit card accepted

"Came quickly and got the job done at an affordable price."

Response time10 hrs

Response rate91%

19 neighbors recently requested a quote

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Drain Master 24/7 LLC

4.3(

)

Basement Drainage Channels - Install

Serving Byram, MS and surrounding areas

Approved

In business since 2023

Emergency services offered

Warranties offered

"Very cordial, knowledgeable and prompt."

Recommended by50%of homeowners

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Superior Foundations Service

New to Angi

Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Byram, MS and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

Foundation repair (slab and conventional), French drains, helical piers and post-tension cables

Response time2 days

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On-Site Solutions, LLC

New to Angi

Basement Drainage Channels - Repair

Serving Byram, MS and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

HandyMan Business Specializing in Light Commercial and Residential installs and repairs.\nAll Things Property. \nAirBnB Repairs and Installs.\nMS Licensed Contractor And Insured.\nBusiness since 2006.

2 neighbors recently requested a quote

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Brumfields lawncare

New to Angi

Basement Drainage Channels - Repair

Serving Byram, MS and surrounding areas

Approved

I am an honest, fair, hardworking small town business guy that loves to do anything that involves the yard. My crew and I will meet any needs you have and work with you to give you your desired outcome!

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Cooper's Plumbing Service LLC

4.6(

144

)

Basement Drainage Channels - Install

Serving Byram, MS and surrounding areas

In business since 2014

Credit card accepted

"Good price and got me up and going in a few hours."

Recommended by95%of homeowners

Basement Drainage Channels - Install

Serving Byram, MS and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"They had to work on a home 31+ years old and even slide-ins aren't made for them now. Extra work was done, and they had everything they needed. You could not have asked for a better company, and they were very polite."

Response time10 hrs

Response rate100%

Recommended by100%of homeowners

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Showing 1-10 of 39

Basement Waterproofing questions, answered by experts

Underfloor insulation alone will not cause moisture and mold, but improper installation can. Although the purpose is to seal any drafts, your subfloor still needs ventilation. If you seal the area too tightly and prevent all airflow, this can cause moisture to get trapped. This moisture eventually leads to mold and—if your floors are wood—rotting.

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

Yes, if your crawl space is prone to humidity, a dehumidifier can help keep it dry. For use in a crawl space, you’ll need a high-capacity and high-efficiency dehumidifier with built-in air filtration. It’s also wise to purchase one with a self-draining feature. Otherwise, you’ll need to climb into the crawl space to empty the dehumidifier.

No, you don’t want your crawl space to be wet because water and even moisture in the air under your home can attract insects and rodents, decrease your indoor air quality, increase your energy bills, promote mold growth, and even lead to structural damage. If you notice any signs of water or humidity in your crawl space, you should get the issues addressed immediately by contacting a professional. They can remove moisture and will know how to waterproof your basement to prevent ongoing problems.

Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance.

The cost of a walkout basement can be anywhere from $5,000 to $35,000.

The Byram, MS homeowners’ guide to basement waterproofing services

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

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Jul 20, 2026Jul 20, 2026
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How to Waterproof a Basement Like a Pro
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Jul 9, 2026Jul 9, 2026
What Is Basement Waterproofing and How Does It Work?
Struggling with a damp basement? Learn about basement waterproofing and how these tips can help keep your basement safe from the elements.
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•
Jul 20, 2026Jul 20, 2026
How to Keep Your Basement Dry and Get Rid of Moisture
Can’t seem to get rid of the moisture and mold in your basement? Learn why basements tend to hold moisture and how to get rid of moisture in the basement.
C.E. Larusso
•
Jul 8, 2026Jul 8, 2026
7 Reasons Water Is Seeping Through Your Basement Floor
Unearth the root causes of water seepage in your basement floor. Explore effective solutions to keep your basement dry and your home protected.