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

Avatar for Groundworks
Groundworks
4.5(
283
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Cook, MN and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2005

Free estimates

Warranties offered

"Gregg Poindexter and Dan Supar were incredibly knowledgeable, thorough and helped me navigate my basement waterproofing issues. They took their time and made sure everything was inspected fully. And even went above and beyond. Very happy with their service!"
Foundation
Foundation
Foundation
Foundation
Foundation

+16

Response time3 days
149 neighbors recently requested a quote
Recommended by84%of homeowners
Rule of thumb home repair
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cook, MN and surrounding areas

In business since 2012

Free estimates

Emergency services offered

to be sure that theres an very fair priced agreement inplace to know what will be accomplish with the end result is exaclty what was discussed so going into it i know as well as yourself know and agree on the exact dollar amount that is fair or lower than most only to ensure a very stress free time as well as repeat costumers is what i look to acheive. i will not take a job that would be labeled or talked about as in "slapped together quick" i just cant do that because of how i was tought as i got more serious about what i do for somone is what they have to live with as well as i do share that feeling and i dont go home at night wondering about anyhting because when i do sothing i do it right and i do it good so that whoever its for is happy with the outcome.\ni feel that if your able to explain what you need done im confedent that the result will be just that.\nif you had water damage or any type of damage to your property i will bring it back to its origal state or you may have some add ins or more depth to the job resulting in a new and inproved type of result.\nalso lets say the way things are desighned just do quite fit your style or simply just fit objects in to anymore because familys get bigger and the house stays the same . even if you know something has to change but you have no idea what to do about it thats ok we can dicuss many types of options and ideas untill you feel or find just that perfect mixture you needed. or if you just simplely need another set of hands to get a task done quickly, safly and not pay so much that your questioning to go it aloone because i can assure you well agree on what you want im there to listen and understand your hurdles and hofully end up with you going out to shop and upon your return its finished, im gone, and its already been paid! so that you can get back to your day without any issues.\n

Basement Waterproofing FAQs, answered by experts

Permits may be required for major repairs, structural work, or electrical and plumbing restoration after a flood. Check with your local building department to determine permit requirements and associated fees for your flooded basement cleanup project. Obtaining the correct permits helps ensure work is done safely and up to code.

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.

If a crawl space isn’t vented, there can be moisture buildup, which can lead to mold damage, easily destroying the foundation of your home. A closed-off crawl space can trap heat, which can be useful in the winter, but can also trap dangerous gases and prevent clean air from entering the home through the floorboards.

Proper basement ventilation is very effective at reducing humidity. Without enough ventilation, your basement is prone to mold and moisture damage. Your basement should have as much natural ventilation via windows and doors as possible, and if your budget allows, you should also consider installing an ERV system to keep basement humidity levels at bay.

Yes, if your crawl space is prone to humidity, a dehumidifier can help keep it dry. For use in a crawl space, you’ll need a high-capacity and high-efficiency dehumidifier with built-in air filtration. It’s also wise to purchase one with a self-draining feature. Otherwise, you’ll need to climb into the crawl space to empty the dehumidifier.

The Cook, MN homeowners’ guide to basement waterproofing services

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