Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Onalaska, WA

Enter your zip and get matched with up to 5 pros

Find Basement waterproofing pros in Onalaska

Avatar for TerraFirma Foundation Systems
TerraFirma Foundation Systems
4.0(
99
)

Serving Onalaska, WA and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"I have had two issues since they installed the new sump pump and irrigation. Issue number one was water still getting passed the new concrete. The other issue is that the new concrete was not level at all which has caused issues with the new flooring I installed. However, their customer service is top notch and will work hard to take care of you."
A System Design Specialist helping a homeowner
Encapsulating a crawl space
Fleet of vehicles in our Portland, Oregon locatio
Loading up our truck for a piering job
Loading up a truck for a waterproofing job

+33

Response time40 mins
Response rate98%
92 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.3(
313
)

Serving Onalaska, WA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Emergency services offered

"They made my cracked driveway look like new. With the stabilizing they did, itâ ll last another 100 years! Very happy with my basement also!"
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time2 days
171 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Rock Creek, LLC
Rock Creek, LLC
5.0(
6
)

Serving Onalaska, WA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Responded to phone calls and texts in a timely manner. Was courteous and respectful and cleaned up after the repairs were completed. I would highly recommend and will use them for any future plumbing issues."
concrete steps
kitchen remodel
kitchen remodel
kitchen remodel
Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Diversified Crawlspace Servs
Diversified Crawlspace Servs
3.9(
25
)

Serving Onalaska, WA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"We had a foot of water in our crawl space after the snow and 6 in. of rain from the December 2021 storms. I had called several companies to come out to take a look and give quotes. Ethan from diversified was the 3rd quote we received. Ethan explained the issue, explained what they would do to remedy it, and answered all my questions. He sent me the quote which was very resonable. BE SURE TO GET SEVERAL QUOTES. ONE COMPANY QUOTED US DOUBLE OF WHAT WE PAID DIVERSIFIED. They were able to get a team out two days later. The team was on time, professional, and did really good work. We ended up needing a sump pump due to ground water coming up. They applied a mold application and completed the work in a day. I highly recommend these guys and did my research prior to having them do the work. I am very impressed and happy we chose them."
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage

+18

Recommended by60%of homeowners
Avatar for J.S. Chappell LLC
J.S. Chappell LLC
New to Angi

Serving Onalaska, WA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

We offer a full service one stop shop… From Dust to drapes we cover everything in between. We are leaders in Residential New Construction and Home Renovations, New Development, Decks, Sheds, Shops, Additions. Our services also include our Commercial Remodeling side, no job too big or to small we’re here to be a pillar in our community and grow in the right direction. \n\nWe take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers 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.

Jesse Chappell
First Coat
New Look
Sand
Remodel

+29

Response time2 days
Avatar for Expedeck
Expedeck
5.0(
24
)

Serving Onalaska, WA and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"The workers were hard working. Did a great job. The only concern we had was the lack of attention to the workers: no porta potty and no machinery to help carry the heavy concrete. Still waiting for the $250 gift card reward, lol!"
Andrew Farjo
Landscape Lighting with retaining walls
Accent wall / Seating wall with LED lighting
Andrew Farjo
Andrew Farjo

+31

Recommended by100%of homeowners
Avatar for Creekside Excavation & Hauling LLC
Creekside Excavation & Hauling LLC
5.0(
7
)

Serving Onalaska, WA and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"Immediate call back when requested quote, and great service. Crew workers are hard working and respectful. The work performed went way beyond the basics... from cutting down 3 ft weeds, removing debris, spraying for weed control, trimming under bushes, cleaning up edges of flower bed, and then spreading bark. I would hire them again, and recommend this company ?."
Foundation dig out & Pad Compaction
Land before road & landscaping
Progress including tree clearing
Finished Product
Additional Photos

+8

Recommended by100%of homeowners
Showing 1-10 of 35
Basement Waterproofing questions, answered by experts

Basements are commonly converted into game rooms. The potential challenges you may run into include controlling moisture, working with low ceilings, limited natural light, and the need for additional electrical or HVAC work. Addressing these issues can add to the total cost, but it ensures a comfortable and functional space.

Some disadvantages of crawl spaces are mostly regarding the air itself—moisture build-up and poor ventilation, which can cause problems both in the house and underneath it, even damaging the foundation itself. Crawl spaces are difficult to access and often invite unwanted pests during the hot summer months and the cold winter ones. These hard-to-seal spaces are also susceptible to water damage during periods of heavy rain or melting snow.

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 best ventilation for a crawl space is a fully encapsulated crawl space with its own separate ventilation system. If you go this route, ensure you have the proper crawl space code requirements done and dusted before encapsulating your crawl space with a moisture barrier and installing appliances that may not be up to the proper specs.

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.

The Onalaska, WA homeowners’ guide to basement waterproofing services

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