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Best basement waterproofing pros near Allenton, WI

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TRUSTED BY ALLENTON, WI HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon18
    Verified basement waterproofing services reviews

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

Avatar for Renew Basement Foundation
Renew Basement Foundation
5.0(
23
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Allenton, WI and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Based on the foundation being brick, there was not the option to add weeps. Additionally in the middle of February, I did not want to excavate the exterior. Therefore the waterproofing was done from the inside. Renew added a rigid board covering onto the foundation interior which will direct moisture downwards to the new drain tile system and now the basement is humidity and moisture free. Very pleasant folks to work with too."
Response time1 day
Response rate100%
2 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.6(
917
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Allenton, 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

50 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Sure-Dry, LLC
Sure-Dry, LLC
3.8(
19
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Allenton, WI and surrounding areas

Approved

In business since 1994

Free estimates

Warranties offered

"Mike is great at the planning and cost estimate. He gets right to work and works efficiently, finishing in less time and at a lower cost than I had expected. And he does great work! I now have a well insulated garage, and can't thank Mike enough."
Sump Pump Installation
Waterproofing Basement Walls
Egress Window
Egress Window
Concrete Resurfacing

+18

Response time5 hrs
82 neighbors recently requested a quote
Recommended by54%of homeowners
Avatar for AccuLevel, Inc. - Northern Illinois
AccuLevel, Inc. - Northern Illinois
3.9(
215
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Allenton, WI and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Matt was up front about the cost and understood our policy to obtain estimates from 3 companies before proceeding with work in our home. He itemized the estimate and explained the procedure and warranty. He was pleasant to work with! He did not require an hour of my time or insist that both my husband and I be present in order to give us a sales pitch. The price was competitive and not inflated to cover marketing expenses. I like that the company is family owned & local, and that the workers are employees, not sub-contractors. The men who did the work were efficient and we have had no water in our basement since the waterproofing was done. I believe the contractors who followed Acculevel's work were a little surprised at the materials used, and they had to adjust their plans somewhat, but all is good in the end. Thank you!"
Wall Anchors
Exterior Foundation Repair
Bowed Wall Foundation Repair AFTER
Horizontal Wall Crack BEFORE
Exterior Wall Anchors

+31

Response time4 days
69 neighbors recently requested a quote
Recommended by87%of homeowners
Basement Repair Specialists, LLC
3.7(
73
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Allenton, WI and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Bob Reber was very diligent, on time that was promised and repaired my sump pump to perfection. He knew exactly what he was doing with professionalism and efficiency. I have not had a problem since then. I am extremely pleased this company and feel more at ease now and confident with Basement Repair Specialists out of Appleton, WI. I highly recommend them!"
Carbon Fiber straps
Response time8 hrs
110 neighbors recently requested a quote
Recommended by75%of homeowners
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Basement Waterproofing FAQs, answered by experts

In most cases, it is safe to live in a home with minor foundation problems, but you should not let the issues persist. Virtually all foundations have small cracks from normal settlement, which are not a structural concern but should be sealed to prevent water intrusion. However, major damage—such as large structural cracks, sinking foundations, or bulging walls—can make a home unsafe. Other issues that can pose safety and health risks include poor indoor air quality from mold or pests, uneven floors, and rotten beams or joists. It is always best to have a foundation repair expert or structural engineer inspect any issues to determine if your home is safe to live in.

The least expensive basement waterproofing methods include grading soil away from your home, installing downspout extenders on your gutter system, and applying a waterproof paint on the interior of the foundation walls. Installing a French drain is a relatively inexpensive method if you do the work yourself, although it’s labor-intensive and can be challenging to install properly.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. The chances of mold developing depend on several factors, including the severity of the damage and how quickly the area is cleaned and dried. To prevent mold, you must act quickly—ideally within the first 24 hours. Clean up all water and thoroughly dry the affected area. If the damage is extensive, you were unable to address it immediately, or you suspect mold has already started to grow, it is best to assume it is present and hire a professional mold inspector or removal expert to assess the situation.

Many prevention methods can be used individually or in combination to waterproof your basement. Some of the most common waterproofing methods include:

  • Using dehumidifiers 

  • Silicate concrete sealers

  • Vapor barriers 

  • Baseboard channels 

  • Drain tile systems

  • Waterproofing paint

  • Drainage systems

  • Epoxy injection

  • Interior French drains

  • Exterior excavation and waterproofing

  • Cement waterproofing

  • Weep tiles

  • Liquid membrane

  • Sheet membrane 

  • Yard grading

  • Gutters and downspouts

If your basement often leaks after heavy rain, it’s probably caused by hydrostatic pressure. When the ground is saturated with water, it can put pressure on the exterior of your home’s foundation, causing cracks in the basement wall and pushing water through any existing weak spots. Over time, hydrostatic pressure can cause structural damage to your home.

The Allenton, WI homeowners’ guide to basement waterproofing services

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