Top-rated basement waterproofing pros.

Best basement waterproofing pros near Mercer, WI

Enter your zip and get matched with up to 5 pros

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

Avatar for Acculevel, Inc. - Wisconsin
Acculevel, Inc. - Wisconsin
3.9(
233
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mercer, 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

Recommended by86%of homeowners
Avatar for Custom Craft Environmental
Custom Craft Environmental
4.6(
117
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mercer, WI and surrounding areas

In business since 1991

Emergency services offered

Credit card accepted

"Rich came to give us a quote the same day we called. He told us what items could be cleaned and saved and what had to be disposed of. He took the time and explained everything thoroughly. The next morning his crew came on time and got right to work. Rich and the guys did a great job cleaning our basement. You would never know their was ever sewage in our basement. We are very happy with their work. We highly recommend Custom Craft Environmental."
Additional Photos
Additional Photos
Additional Photos
Before
After

+1

Recommended by94%of homeowners
Drytronic, Inc.
New to Angi
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mercer, WI and surrounding areas

In business since 1999

Established in 1999, Drytronic, Inc. is committed to excellence and continues to be an outstanding business in the Missouri and Illinois area. Drytronic, Inc. prides itself on an outstanding record of quality service. Our longevity is a testament to the level of service and quality you'll get when you choose Drytronic, for your basement waterproofing needs. We have a full staff of highly talented and motivated individuals that are eager to help you with all of your basement waterproofing needs. We are exited that you have expressed an interest in our services and we look forward to working with you.

Lone Wolf Plumbing
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Mercer, WI and surrounding areas

In business since 2013

Offers commercial services

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n

Basement Waterproofing FAQs, answered by experts

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

Mold and mildew are the things in basements that actually cause the musty odors, but moisture is the underlying issue that causes mold and mildew growth. Addressing moisture and water problems and then removing materials that are moldy are some of the best ways to get rid of the musty odors. Preventive measures after that—like installing air fresheners and a dehumidifier—can help keep musty odors from returning.

Unfortunately, mold can grow pretty much anywhere, on any kind of surface. However, you’re most likely to see it in damp areas like basements or bathrooms, as well as anywhere there has been a water leak. Consult a local mold specialist to determine if certain areas of your home are prone to mold based on climate and other factors.

Most people consider a French drain to be one of the most effective solutions for foundation leaks, but it’s not always a standalone solution. French drains will help keep water away from your foundation to reduce the risk of leaking and structural damage from soil expansion, but depending on your foundation type and location, you might need other systems or techniques—like soil gradation and gutter and leader installation—to resolve the underlying problem.

Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:

  • Water in your basement, including damp walls or puddles on the floor

  • Mold spots in your basement

  • Musty smells or odors

  • Warped doors or walls

  • Cracks in walls

  • Insect issues, such as cockroaches and termites

The Mercer, WI homeowners’ guide to basement waterproofing services

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