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

Avatar for Groundworks
Groundworks
5.0(
66
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Griswold, IA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2000

Free estimates

Warranties offered

"Groundworksâ listened to our input and throughly evaluated the requirements to support the basement walls and prevent water from coming in. They were on time and communicated clearly and timely. The Foreman did an evaluation and recommended a couple changes to the plan that I agreed with and weâ re beneficial. The 3 workers knew what they were doing and worked hard. I appreciate the manner they communicated and they were very friendly. Overall, they did a great job!"
Protect Your Basement
Correct Your Wet Basement
Protect Your Basement
Waterproof Your Basement
Protect Your Concrete Before & After

+16

207 neighbors recently requested a quote
Recommended by72%of homeowners
Dave Navarro Construction
5.0(
2
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Griswold, IA and surrounding areas

In business since 2010

Free estimates

We are a General contracting company. We perform all services involved in the completion of unfinished space. We do hire sub contractors when needed. We also stand by their work as well. Though we have only been in buisness for a short time. we have a combined 37 years construction experience.

Recommended by100%of homeowners
Avatar for Midwest Basements, LLC
Midwest Basements, LLC
4.0(
4
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Griswold, IA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

Midwest Basements LLC should be your first choice when it comes to any of your foundation needs. We take the same pride in our work as you do in your own home. Please call and ask about our in house financing and our emergency response service. Thank You!

Crawl Space
Ramp & Door
Digging out
Recommended by100%of homeowners
Avatar for Pro Site Company
Pro Site Company
New to Angi
Basement Drainage Channels - Install

Serving Griswold, IA and surrounding areas

Emergency services offered

Concrete performance depends on planning, from subgrade prep to finish and cure. An excavating company in Glenwood , will compact the base, set forms, and confirm reinforcement placement before the first truck arrives. In cooler mornings typical of Glenwood, IA, crews may adjust mix timing and finishing sequence to avoid surface tearing. Control joints are laid out to manage cracking, and edges are tiled where traffic or freeze-thaw cycles are common. Pro Site Company coordinates with excavation and grading teams to align pads, sidewalks, and approaches with site elevations and shed water. Where runoff is a concern, drains or drainage tubes are set before the pour, and slopes are checked with levels to maintain flow. For farm or outbuilding slabs in Mills County, we may recommend thicker edges, fiber reinforcement, or a vapor barrier based on intended loads.

Concrete Pouring
Land Grading
Basement Waterproofing FAQs, answered by experts

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.

Crawl spaces are the more desirable option overall because they provide additional space for storage and utilities, but they are more expensive to install and maintain. Slab foundations are considered a better option in warmer climates where the depth of the frost line isn’t an issue because they’re more affordable, but crawl spaces are better in areas where the frost line is deep or where flooding can be an issue.

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

No, your basement dehumidifier doesn’t need to be on 24/7. While it’s an excellent tool for tackling damp, musty air, especially in humid seasons, leaving it running nonstop can backfire. Over-drying the space can mess with your sinuses, warp wood, and even crack certain materials. Instead, only use your humidifier when moisture levels rise above 50%, and then give it a break when the humidity levels drop.

A sump pump can remove excess moisture from under a house if standing water is present. Other ways to protect your crawl space from moisture include installing a vapor barrier, using a dehumidifier, installing insulation, and using a fan to dry the space. Finally, keeping your gutters clear of debris and positioning your downspouts away from the home’s foundation can prevent moisture from getting into the crawl space in the first place.

The Griswold, IA homeowners’ guide to basement waterproofing services

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