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Best basement waterproofing pros near Ashippun, WI

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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon36
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Ashippun - Updated Nov 2026

Avatar for Groundworks
Groundworks
4.6(
917
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Ashippun, WI and surrounding areas

Approved (Corporate)

In business since 1993

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

+13

35 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Tri-State Basement Repair and Waterproofing, LLC
Tri-State Basement Repair and Waterproofing, LLC
3.2(
50
)
Basement Drainage Channels - Install

Serving Ashippun, WI and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"Only time will tell about the quality and that will tell us whether or not the money was well spent. I will add that the warranty did help us to decide who to go with. The service was very good with the cleanup as well as the office customer service."
Response time6 days
19 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Central Wisconsin Excavating
Central Wisconsin Excavating
5.0(
12
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Ashippun, WI and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Central Wisconsin Excavating (CWE) did a fantastic job on our project. They built a solid, well-prepared foundation for our 80,000-bushel grain bin and graded our driveways perfectly to ensure water drains away from our buildings. Their attention to detail, quality of work, and professionalism really stood out. The site was left clean and properly finished, and everything was done right the first time. We’re extremely happy with the results and would highly recommend CWE to anyone needing excavation or site work done right."
Pond project
Pond project
Basement Repair Specialists, LLC
3.7(
73
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Ashippun, WI and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"First, Bob [Provider Name Removed] took the time to explain all aspects of what is causing the mold in our crawl space. His explanation was consistent with the mold testing specialist/microbiologist we hired. The options for turning our crawl space into a mini basement were in-line with what our microbiologist said. The installation team was great to work with. They were very knowledgeable, professional, and respectful of our property. They cleaned up all the post project debris too. We are very happy with our fully enclosed crawl space that doubles as lock-and-key storage. We highly recommend the entire Basement Repair Specialists team."
Carbon Fiber straps
Response time8 hrs
114 neighbors recently requested a quote
Recommended by75%of homeowners
Robert Tony Foundation Repair, LLC
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Ashippun, WI and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

Robert Tony Foundation Repair is your solution for all your Foundation Repair needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Call us today! Satisfaction guaranteed.

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Basement Waterproofing FAQs, answered by experts

A crawl space encapsulation isn’t always necessary, but it’s a wise choice, especially if you live in an area that sees a lot of precipitation. Sealing a crawl space not only reduces damage caused by moisture, mold, and pests, but it also increases your home’s value. It can also save you money by reducing energy bills and avoiding costly repairs for structural or foundation damage.

To maintain an outdoor structure, perform regular inspections for damage, leaks, and weak joints. Clean the structure regularly, treat or repaint wood surfaces for weather resistance, and reinforce any weak joints to prevent deterioration and ensure its longevity.

Some basement waterproofing methods can actually cause your water or moisture problems to get worse, which is why it’s so important to call in a professional who knows how to solve your underlying issue and use the appropriate waterproofing methods. An example of this would be applying latex waterproofing paint to the insides of your basement walls without fixing the water issue outside. Doing so can trap moisture in the basement walls, which can promote mold growth, peeling paint, and even damaged concrete. However, when done by a professional, the only downside to basement waterproofing is the up-front cost.

You should always hire a structural engineer or a professional and licensed foundation repair company for crawl space repair. These professionals will often be able to treat the symptoms of the issue as well as the underlying problem so that you don’t have ongoing damage. They’ll also often take preventative measures to stop the issue from recurring in the future.

Some disadvantages of crawl spaces are mostly regarding the air itself—moisture build-up and poor ventilation, which can cause problems both in the house and underneath it, even damaging the foundation itself. Crawl spaces are difficult to access and often invite unwanted pests during the hot summer months and the cold winter ones. These hard-to-seal spaces are also susceptible to water damage during periods of heavy rain or melting snow.

The Ashippun, WI homeowners’ guide to basement waterproofing services

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