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Best basement waterproofing pros near Malvern, IA

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

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

Serving Malvern, 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

202 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for AccuLevel, Inc. - Missouri
AccuLevel, Inc. - Missouri
4.0(
215
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Malvern, IA and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Every person involved with my job was knowledgeable and highly professional. I look forward to having a dry basement from now on, and I am confident that AccuLevel's work will make that happen."
Commercial Waterproofing
Commercial Waterproofing
Commercial Waterproofing
Commercial Waterproofing
Commercial Waterproofing

+28

Response time7 hrs
69 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Olshan Foundation Repair
Olshan Foundation Repair
3.9(
67
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Malvern, IA and surrounding areas

In business since 1933

Free estimates

Warranties offered

"As a project manager in the construction industry I can tend to be a little overbearing when it comes to hiring contractors to work on my own home. During the discovery/bid process Cody was extremely knowledgeable and helpful with explaining the issue and the options we had to remedy my problem. Their bid came in at a fair value and below what I was as expecting so we signed the contract to move forward with the work. Olshan installed 8 cable lock st piers to lift and stabilize our foundation. Alejandro was in charge of the actual work on our home and he is an absolute rock star. He was extremely knowledgeable and went above and beyond to ensure that the job was performed correctly. His crew was respectful of our home and got in and out as quickly and cleanly as they could. Alejandro answered all texts and phone calls in a reasonable amount of time and always kept me in the loop. Overall, foundation work is tough but Olshan made it look easy. Cody and Alejandro were exceptional throughout the process and I trust if I ever need anything in the future they will be there for me."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+25

Response rate100%
Recommended by74%of homeowners
Dave Navarro Construction
5.0(
2
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Malvern, 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
Roofs, Walls, & All
5.0(
3
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Malvern, IA and surrounding areas

In business since 2021

Free estimates

Credit card accepted

Roofs, Walls & All, is a general construction and home improvement contractor and handyman service, lead and provided by Preston Woodall a carpenter by trade with over 10 years of experience. We specialize in, but are not limited to roofing, framing, (both wood and metal studs) decks, porches, patios, gazebo, pergola, sheds, fencing, staining, retaining walls, window and door install, siding, insulation, wood resurfacing, flooring, tile, carpet, drywall and hole patching, finish, trim, painting, driveway and garage add ons, appliance install and more. No job too big or small. We guarantee quick reliable and quality service for any job at a fraction of our competitors pricing.

Handymen Project
Handymen Project
Handymen Project
Handymen Project
Additional Photos

+3

Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

Yes, crawl spaces can attract bugs, especially since moisture tends to build up in the space, and moisture attracts pests. A good way to prevent pest infestation in your crawl space is to install a vapor barrier—called crawl space encapsulation—on the interior to seal the space, along with a French drain or some other kind of foundation drainage system outside to keep runoff out of your crawl space. You can also seal foundation cracks and repair damages to cut off access to pests.

Sandbags are the most common and efficient way to create a flood barrier at home. Some local authorities pass them around to homes before the risk of a flood. Otherwise, you can use flood-proof house materials, like burlap or woven plastic bags, to make sandbags and fill them with sand or cat litter. Make sure that when you stack them, they’re tightly laid on top of each other, creating the effect of a firm wall against accumulating water.

Yes, water and water vapor can seep through cracks in your basement floor, which means you should address all basement floor cracks, even if they don’t indicate structural issues. Sealing settling cracks and shrinkage cracks is a good idea to keep water and moisture outside where it belongs. Doing so can improve your indoor air quality, reduce the risk of mold growth, make your home more comfortable, and help prevent pest infestation.

To maintain an outdoor structure, perform regular inspections for damage, leaks, and weak joints. Clean the structure regularly, treat or repaint wood surfaces for weather resistance, and reinforce any weak joints to prevent deterioration and ensure its longevity.

You don’t always need to install a dehumidifier in your encapsulated crawl space, but it might be a good idea in certain instances. If you notice obvious signs of condensation, mold, or musty smells permeating from your crawl space, a dehumidifier can help. It’s ideal for homes in humid areas.

In a worst case scenario, structural damage like rust on metal beams, rotting wood, and swelling on doors and windows can signal moisture problems that would benefit from a dehumidifier.

The Malvern, IA homeowners’ guide to basement waterproofing services

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