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

Avatar for Groundworks
Groundworks
4.1(
275
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Walsh, CO and surrounding areas

Approved (Corporate)

In business since 2021

Free estimates

Warranties offered

"This company is top notch with very professional workers and courteous reps to give you an estimate. This was by far the BEST job for the money. It was 6 times LESS than Applewood. Yes, I'm not kidding. You will not be disappoint!! Thank You Complete Basement Systems!!"
Protect Your Basement Before & After
Correct Your Wet Basement
Protect Your Basement
Waterproof Your Basement
Protect Your Concrete Before & After

+16

77 neighbors recently requested a quote
Recommended by83%of homeowners
D & D Contracting
4.4(
5
)
Basement Drainage Channels - InstallFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Walsh, CO and surrounding areas

In business since 2017

Free estimates

Credit card accepted

Welcome to D & D Contracting! We take pride in the quality of work and customer satisfaction that we give each and every customer. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

1
2
3
4
5

+13

Response time2 days
Recommended by80%of homeowners
Avatar for Thrasher Foundation Repair - Denver
Thrasher Foundation Repair - Denver
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Walsh, CO and surrounding areas

In business since 1975

Free estimates

Warranties offered

With 50 years of experience in the basement and foundation repair industry, Thrasher Foundation Repair offers trusted services to homeowners around Denver, CO. Recognized for our exceptional commitment to leadership, character, and organizational ethics, we are proud recipients of the 2024 International BBB Torch Award for Ethics. From cracked concrete repair to basement waterproofing and crawl space encapsulation, we provide state-of-the-art solutions to keep your foundation safe, dry, and healthy. Here at Thrasher, we guarantee precise repair and genuine care. We proudly offer our services in Fort Collins, Colorado Springs, Aurora, and surrounding areas. Contact us today at 303-586-5570 for a free inspection.

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+9

Response time1 day
Response rate100%
Yocam Construction, LLC
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Walsh, CO and surrounding areas

In business since 2013

Free estimates

Credit card accepted

Yocam Construction LLC, is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time3 hrs
Basement Waterproofing FAQs, answered by experts

If you notice standing water under the deck after rainstorms, you may need a drainage system to efficiently move this water. You do not want standing water to rest against your foundation or against support posts for the deck, as this could cause significant structural problems over time. Make sure the area has proper grading, too.

Thankfully, you do have a few sump pump backup options in case it fails. One option is a battery-powered backup sump pump. Another option is using a portable backup generator as a power supply for your sump pump. Unlike a battery-powered backup which has limited power, a generator can run around the clock for as long as you need it. 

Or you can opt for a water-powered backup pump, which uses your home’s water supply as a source of power. However, this may not be the best option if you find your house frequently has low water pressure.

Crawl spaces are prone to issues caused by excess humidity and improper ventilation, but that doesn’t mean you should avoid buying a house with a crawl space. A home that is encapsulated and well-maintained shouldn’t have any more issues than a slab or basement home.

Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance. 

The cost of a walkout basement can be anywhere from $5,000 to $35,000.

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

The Walsh, CO homeowners’ guide to basement waterproofing services

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