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Verified Reviews for Basement Waterproofing pros in Jefferson, SD

*The Angi rating for Basement Waterproofing companies in Jefferson, SD 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 Jefferson, SD 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 April 22, 2026

Find Basement waterproofing pros in Jefferson

Avatar for Groundworks
Groundworks
5.0(
64
)

Serving Jefferson, SD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2000

Free estimates

Warranties offered

"Groundworksâ listened to our input and throughly evaluated the requirements to support the basement walls and prevent water from coming in. They were on time and communicated clearly and timely. The Foreman did an evaluation and recommended a couple changes to the plan that I agreed with and weâ re beneficial. The 3 workers knew what they were doing and worked hard. I appreciate the manner they communicated and they were very friendly. Overall, they did a great job!"
Protect Your Basement
Correct Your Wet Basement
Protect Your Basement
Waterproof Your Basement
Protect Your Concrete Before & After

+16

186 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for Blackburn Foundation Repair, LLC
Blackburn Foundation Repair, LLC
4.6(
23
)

Serving Jefferson, SD and surrounding areas

Approved

In business since 1992

Free estimates

Warranties offered

"Excellent service! Pro was nice, easy to work with, professional! Never would have known he was here, he cleaned the working area so well! I would definitely recommend Blackburn Basement!!"
Crawl Space Repair
Crawl Space Repair
Response time1 day
96 neighbors recently requested a quote
Recommended by80%of homeowners
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Kj construction llc
4.7(
42
)

Serving Jefferson, SD and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"Wow I got a pro when I hired Kevin from KJ Drywall to waterproof my basement. Not only did they do an excellent job but went beyond what they contracted to do. I recommended them to neighbors and KJ (Kevin) treated them in the same professional and efficient manner. Highly recommend KJ Drywall."
Response time1 day
Response rate88%
Recommended by97%of homeowners
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Avatar for Dakota Basement Systems, LLC
Dakota Basement Systems, LLC
5.0(
2
)

Serving Jefferson, SD and surrounding areas

In business since 2006

Free estimates

Credit card accepted

"They came in and did the work in a timely manner and cleaned up after they were done and left the basement how it was when they got there."
Water
Finished
Work
Finished
Finished

+102

Response time7 hrs
Recommended by100%of homeowners
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Avatar for Enhanced Basements Foundation Repair LLC
Enhanced Basements Foundation Repair LLC
New to Angi

Serving Jefferson, SD and surrounding areas

In business since 2024

Free estimates

Emergency services offered

Enhanced Basements foundation repair offers reliable and affordable foundation repair solutions. Our dedicated team is committed to providing high-quality services to address various foundation issues. We take pride in our work and strive to ensure the safety and stability of your property.

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Underground Specialists, LLC
New to Angi

Serving Jefferson, SD and surrounding areas

In business since 2000

Free estimates

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Alex prides himself on the cleanliness, speed and precision of the work that he provides. For several years now he has enjoyed working with one happy customer after the next and he looks forward to helping you next! Give Alex a call today.

Response time12 hrs
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Showing 1-10 of 15
Basement Waterproofing questions, answered by experts

You should take care of any sign of water in your basement, whether it’s dampness after heavy rain or puddles of water on the floor. Besides potentially causing a health hazard, the moisture can damage your home’s structure and foundation. Furthermore, mold can grow quickly and spread throughout the rest of your home. With mold remediation costs ranging between $1,200 and $3,400, it’s best to avoid mold issues by fixing the leak.

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

Venting the crawl space can be a good alternative to encapsulation if you live in a dry climate and the moisture problem isn’t severe. You could also try a dehumidifier or install a vapor barrier on the floor, leaving the walls exposed. A new drainage system may eliminate the moisture problem if it is not caused by humidity.

Whether to waterproof your basement from the interior or exterior depends on several factors, including your budget.

Exterior waterproofing is generally considered the superior method because it stops water at the source, preventing it from seeping into and damaging your basement walls. This approach offers the most protection, making it ideal if you use your basement for storage.

By contrast, interior waterproofing is often less expensive and requires less labor because the area is more accessible.

For maximum protection against water leakage and moisture, applying waterproofing measures to both the inside and outside is the best solution. However, if you must choose only one, stopping water from the outside is the most effective approach to preserve your foundation and prevent damage.

Interlocking garage tiles made with PVC are the most effective for garages with past issues of humidity and flooding because damp concrete is not suitable for paint. Epoxy coating is also water-resistant and can prevent mold buildup. Finally, porcelain tiles are a wonderful option for wet conditions if your budget allows.

The Jefferson, SD 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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