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Best basement waterproofing pros near Oshkosh, WI

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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon23
    Verified basement waterproofing services reviews

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

Avatar for Everdry Waterproofing
Everdry Waterproofing
4.5(
23
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Oshkosh, WI and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"We hired them to waterproof and repair our basement. They did a great job, and they have great customer service. We had a couple complaints when they left, and when we called them, they immediately took care of them with no hassel. They also called us like a week later to ask how things went and actually paid attention to what we had to say. There was torrential downpour that started same day they finished, and the basement was completely dry. There would have been puddles all over before."
Encapsulation
.
almost finished
Finished Sump and drain tile install
Review Letter

+2

Response time1 day
Response rate92%
57 neighbors recently requested a quote
Avatar for Acculevel, Inc. - Wisconsin
Acculevel, Inc. - Wisconsin
3.9(
233
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oshkosh, 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!"
Commercial Waterproofing
Commercial Waterproofing
Commercial Waterproofing
Commercial Waterproofing
Commercial Waterproofing

+26

4 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Sure-Dry, LLC
Sure-Dry, LLC
3.8(
19
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oshkosh, 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
87 neighbors recently requested a quote
Recommended by54%of homeowners
Basement Repair Specialists, LLC
3.7(
73
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oshkosh, WI and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"The Project Manager, Bob Reber, was extremely helpful. He really knows a lot about basement water solutions. He is also very polite and is welcome back in our home any time! He quickly developed a detailed recommendation for a solution to the problem we were experiencing. Even better was the fact that he was willing to reduce the required work as we discovered additional information about the details of our situation. If we ever need any additional help with our basement, Bob is the only person I will call! Thanks for all your help!"
Carbon Fiber straps
Response time8 hrs
114 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Total Ground Solutions LLC
Total Ground Solutions LLC
5.0(
3
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Oshkosh, WI and surrounding areas

Approved

Free estimates

Offers commercial services

"After being let down numerous times by a company that kept promising to start a project for 3 weeks, I reached out to Total Ground Solutions. It was a risk, but as soon as I talked with Cooper, I felt very comfortable. He came to see the area, made some excellent suggestions, and I knew he was a great fit. He was great at communicating, easy to work with and did everything when promised and above expectations. He did an amazing job and I HIGHLY RECOMMEND this company!!"
Gravel tilling
Gravel tilling
Gravel tilling
Gravel tilling
Gravel tilling

+31

2 neighbors recently requested a quote
Avatar for Rion, LLC
Rion, LLC
4.7(
32
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oshkosh, WI and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"The weather interfered the day they were first to come and utilities didn’t measur and m ark in a timely matter but Rion came on time left when they said they would. They were clean and cleaned up and the workers were nice and considerate, especially with my neighbors I was concerned about hiring a basement waterproofer but I would recommend them without reservation. I love my egress window. What a difference it makes."
Randys K Racine
Randys K Racine
Randys K Racine
Randys K Racine
Randys K Racine

+21

Response time1 day
Recommended by96%of homeowners
Showing 1-10 of 26
Basement Waterproofing FAQs, answered by experts

Yes, you can add a bathroom to an unfinished basement, but you’ll want to take proper precautions if doing so. As with any bathroom addition, you’ll need to make sure that it’s approved by local building authorities first. With unfinished basements, you especially need to keep an eye on proper ventilation practices.

While "dry" mode on your AC can help reduce humidity levels to some extent, it may not be as effective as a dedicated dehumidifier, especially in areas with extremely high humidity or larger spaces. Dehumidifiers are specifically designed to remove moisture from the air more efficiently, making them a better choice for tackling persistent humidity issues.

Methods include interior sealants, exterior excavation and waterproofing membranes, sump pump installation, and vapor barriers for encapsulation. Techniques vary based on the structure and severity of moisture issues.

Yes, the air from a damp basement can travel up into your living area through a process called the stack effect, so moisture, mold spores, and other debris in your basement air can all decrease your indoor air quality on your main floors. Additionally, damp basements can promote the rotting of building materials, which can damage flooring, insulation, and framing on your first floor in addition to materials in the basement.

Regular inspections, maintaining proper grading around the foundation, and keeping gutters clear are advisable. Vapor barriers and sealants may need checking for wear after several years.

The Oshkosh, WI homeowners’ guide to basement waterproofing services

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