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Best basement waterproofing pros near De Smet, SD

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Top-Rated Basement waterproofing pros in De Smet - Updated Nov 2026

Avatar for Blackburn Foundation Repair, LLC
Blackburn Foundation Repair, LLC
4.6(
23
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving De Smet, 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
91 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Groundworks
Groundworks
4.2(
924
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving De Smet, SD and surrounding areas

Approved (Corporate)

In business since 1999

Free estimates

Small jobs welcome

Groundworks is the North America's leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we're there with one mission to repair, protect and improve their home. For state licenses visit Groundworks.com/licensing

Basement
Basement
Basement
Concrete
Concrete

+9

18 neighbors recently requested a quote
Recommended by90%of homeowners
Kj construction llc
4.7(
42
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving De Smet, SD and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"I had an increasing water problem in my basement when it rained. Kevin came to look at the situation very promptly and assessed the problem . He was very good about making sure I understood my options and costs up front. He walked me through every step and reviewed the work once completed. I am very happy with the professionalism and excellent work of Kevin and his workers. I am happy to recommend this service. Kevin went above and beyond when they had thrown out a rock-yup, a rock-that was my mother's - he went and retrieved it! Amazing sensitivity."
Response time1 day
Response rate88%
Recommended by97%of homeowners
Avatar for Enhanced Basements Foundation Repair LLC
Enhanced Basements Foundation Repair LLC
New to Angi
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving De Smet, 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.

Underground Specialists, LLC
New to Angi
Basement Drainage Channels - Install

Serving De Smet, 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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Basement Waterproofing FAQs, answered by experts

The most flood-resistant materials you can count on in a flood scenario are concrete, closed-cell insulation, foam insulation (also known as expandable foam), pressure-treated wood, marine-grade plywood, and ceramic tile. When a material is flood-resistant, it can withstand direct contact with floodwater for at least 72 hours without being significantly damaged.

To ensure your basement walls are waterproof, it's crucial to address any existing moisture issues before finishing. Inspect for signs of water seepage, such as dampness or discoloration, and repair any leaks or cracks. Install a vapor barrier to prevent moisture from penetrating the walls, and consider waterproofing paints or coatings.

Proper drainage systems, such as interior or exterior waterproofing, can also be beneficial.

Water that pools under pavers can erode the soil foundation and weaken the paver structure. In some situations, it can also cause mold and mildew growth. If that happens, you may need to start budgeting for the cost to build and install a patio to replace the damaged one.

While it’s possible to seal a foundation yourself, it’s not recommended, as it’s a tricky and labor-intensive job. Foundation sealing is best left to the pros to save yourself time, remove the risk of doing it wrong, and keeping yourself safe. Call a foundation repair professional near you to see what the job will cost.

Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.

The De Smet, SD homeowners’ guide to basement waterproofing services

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