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Verified Reviews for Basement Waterproofing pros in Allendale, WY

*The Angi rating for Basement Waterproofing companies in Allendale, WY 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 Allendale, WY 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 December 12, 2025

Find Basement waterproofing pros in Allendale

Avatar for Blackburn Foundation Repair, LLC

Blackburn Foundation Repair, LLC

4.64(
21
)
•Approved Pro

Blackburn Foundation Repair, LLC

4.64(
21
)
•Approved Pro
Customers say: Quality work
84 local quotes requested
33 years of experience

Blackburn Basement Systems has been providing the best in basement waterproofing, crawl space and foundation repair, concrete leveling, and radon mitigation in South Dakota, and Eastern Wy, since 1992. We offer a variety of solutions for the multitude of issues that result from below grade construction throughout South Dakota. Thousands of homes, businesses and government agencies have been serviced by our trained professional installers throughout South Dakota, and Eastern Wy. We are proud to say we have 500 reviews with 4.8 stars!

"Went through them for wall braces which the job was horrible. Then the final price was 3000 more then what my quote was. I do not recommend them for a first choice. "

Matt W on November 2025

Blackburn Basement Systems has been providing the best in basement waterproofing, crawl space and foundation repair, concrete leveling, and radon mitigation in South Dakota, and Eastern Wy, since 1992. We offer a variety of solutions for the multitude of issues that result from below grade construction throughout South Dakota. Thousands of homes, businesses and government agencies have been serviced by our trained professional installers throughout South Dakota, and Eastern Wy. We are proud to say we have 500 reviews with 4.8 stars!

"Went through them for wall braces which the job was horrible. Then the final price was 3000 more then what my quote was. I do not recommend them for a first choice. "

Matt W on November 2025

Avatar for BDPeak Engineering, LLC

BDPeak Engineering, LLC

5.00(
7
)

BDPeak Engineering, LLC

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

BDPeak Engineering provides structural engineering design & drafting services for commercial, residential, industrial and institutional projects. Forensic Investigations & Engineering services are offered for residential & commercial structures. BDPeak was founded on two principles: honesty and integrity. We are professionally licensed throughout the United States, primarily focusing on the Rocky Mountain region. Our staff has been practicing structural engineering and serving the region for 15 years. BDPeak is professionally licensed in Wyoming, Colorado, Montana, Nebraska, North Dakota & Texas.

"Working with Bryan and BDPeak Engineering was an overall great experience. Being first time home builders, Bryan helped make the process as smooth as possible and helped put any concerns we may have had going into it at ease. His attention to detail and communication was second to none. He was very responsive throughout the whole process whenever we had any questions and always met the deadlines he had set. I would most definitely recommend using the services BDPeak offers for any prospective building projects."

Chris P on December 2022

BDPeak Engineering provides structural engineering design & drafting services for commercial, residential, industrial and institutional projects. Forensic Investigations & Engineering services are offered for residential & commercial structures. BDPeak was founded on two principles: honesty and integrity. We are professionally licensed throughout the United States, primarily focusing on the Rocky Mountain region. Our staff has been practicing structural engineering and serving the region for 15 years. BDPeak is professionally licensed in Wyoming, Colorado, Montana, Nebraska, North Dakota & Texas.

"Working with Bryan and BDPeak Engineering was an overall great experience. Being first time home builders, Bryan helped make the process as smooth as possible and helped put any concerns we may have had going into it at ease. His attention to detail and communication was second to none. He was very responsive throughout the whole process whenever we had any questions and always met the deadlines he had set. I would most definitely recommend using the services BDPeak offers for any prospective building projects."

Chris P on December 2022

DZ Home Improvement LLC

No reviews yet

DZ Home Improvement LLC

No reviews yet
50 years of experience

DZ Home Improvement LLC does all kinds of home improvement: Basement Finishing, Patios, Decks and Extensions, Room Additions, Siding, Soffit & Fascia, Replacement Windows, Storm Doors, and interior upgrades such as molding. We are a local, family-owned business and have been doing home improvement projects in Utah and its surrounding states for more than 30 years already. We implement the highest standard possible in delivering services to clients who desire nothing but the best in home remodelling.

DZ Home Improvement LLC does all kinds of home improvement: Basement Finishing, Patios, Decks and Extensions, Room Additions, Siding, Soffit & Fascia, Replacement Windows, Storm Doors, and interior upgrades such as molding. We are a local, family-owned business and have been doing home improvement projects in Utah and its surrounding states for more than 30 years already. We implement the highest standard possible in delivering services to clients who desire nothing but the best in home remodelling.

Avatar for Rapid Foundation Repair Inc

Rapid Foundation Repair Inc

4.91(
11
)

Rapid Foundation Repair Inc

4.91(
11
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Rapid Foundation Repair is a professional trained, Black Hawk, South Dakota based foundation repair and waterproofing contractor that specializes in the installation of steel foundation products and basement waterproofing products. We serve South Dakota and sections of Wyoming. For all foundation repair South Dakota and Wyoming, Rapid has your back. For any basement waterproofing South Dakota and Wyoming, Rapid has you covered there too! For all common problems related to these issues, you can call us.

"First of all, Nathan called me back, which doesn’t happen that often with contractors around here! Their price was very reasonable and I didn’t feel that I was being ripped off. The work was professional and timely. Won’t know until winter/spring if fixed problem but I’m confident it did or they will make it right."

Denise B on June 2018

Rapid Foundation Repair is a professional trained, Black Hawk, South Dakota based foundation repair and waterproofing contractor that specializes in the installation of steel foundation products and basement waterproofing products. We serve South Dakota and sections of Wyoming. For all foundation repair South Dakota and Wyoming, Rapid has your back. For any basement waterproofing South Dakota and Wyoming, Rapid has you covered there too! For all common problems related to these issues, you can call us.

"First of all, Nathan called me back, which doesn’t happen that often with contractors around here! Their price was very reasonable and I didn’t feel that I was being ripped off. The work was professional and timely. Won’t know until winter/spring if fixed problem but I’m confident it did or they will make it right."

Denise B on June 2018

Avatar for RIS Insulation Supply

RIS Insulation Supply

No reviews yet

RIS Insulation Supply

No reviews yet
24 years of experience

RIS in Denver, CO carries CertainTeed Batts and Blown Fiberglass, Applegate Cellulose, Roxul and IIG Mineral Wool and Safing, Touch N' Seal Foam and Other Building Material Accessories.

RIS in Denver, CO carries CertainTeed Batts and Blown Fiberglass, Applegate Cellulose, Roxul and IIG Mineral Wool and Safing, Touch N' Seal Foam and Other Building Material Accessories.

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FAQs for basement waterproofing projects in Allendale, WY

Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:

  • Water in your basement, including damp walls or puddles on the floor

  • Mold spots in your basement

  • Musty smells or odors

  • Warped doors or walls

  • Cracks in walls

  • Insect issues, such as cockroaches and termites

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.

Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.

Several factors dictate if you should waterproof the interior or exterior of your basement. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor.

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

The Allendale, WY 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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