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Best basement waterproofing pros near Lewiston, ID

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

Avatar for Groundworks
Groundworks
4.2(
926
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Lewiston, ID and surrounding areas

Approved (Corporate)

In business since 1999

Free estimates

Small jobs welcome

"Groundworks Initial contact with Adam Siebert Was great! Very meticulous, knowledgeable friendly. Took questions and answered fully and understandable. Technicians: Jordan K and Bex N Very outgoing friendly and knowledgeable took questions with answers I understood. I thank the two of them for a great job. A glitch in the job that needed a bit of plumbing. This team was on it to get the job done contacted supervisor and Groundworks took care of the glitch. Gary says Thankyou."
Basement
Basement
Basement
Concrete
Concrete

+9

28 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for MTU Services LLC
MTU Services LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Lewiston, ID and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"went very well. service was prompt, work was completed efficiently, thoroughly, and timely. everything was explained beforehand during bid in such a way that even someone who knows nothing about the work involved could understand. honest people who know what they are doing. treated our residents with respect. and help to maintain a safe path for them to travel through our main entrance. if you need the services they offer these are the ones to do it. fair pricing as well. only ones I found that actually guarantee the work they do for this type of job."
Elevator pit waterproofing and sealing
Piers under an existing home
Piers under an existing homes middle wall
Solutions/Answers
Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Three Bear Contracting, LLC
Three Bear Contracting, LLC
5.0(
8
)
Basement Drainage Channels - InstallFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Lewiston, ID and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"Justin provided some solutions to a foundation project and helped fix an irrigation problem with same day service. Justin is very knowledgeable and willing to explain the problem and how best to fix it."
Septic System Installation
Septic Tank Installation
Dome Chamber Drain Field Installation
Dome Chamber Drain Field Installation
New Septic Installation

+4

Response time2 days
6 neighbors recently requested a quote
Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

Yes, the air from a damp basement can travel up into your living area through a process called the stack effect, so moisture, mold spores, and other debris in your basement air can all decrease your indoor air quality on your main floors. Additionally, damp basements can promote the rotting of building materials, which can damage flooring, insulation, and framing on your first floor in addition to materials in the basement.

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.

Overwatering can cause issues like water pooling and drainage problems. To prevent overwatering, monitor your soil levels on a regular basis and change your watering schedule as necessary.

Most people consider a French drain to be one of the most effective solutions for foundation leaks, but it’s not always a standalone solution. French drains will help keep water away from your foundation to reduce the risk of leaking and structural damage from soil expansion, but depending on your foundation type and location, you might need other systems or techniques—like soil gradation and gutter and leader installation—to resolve the underlying problem.

Yes, water coming up from the floor should be treated as an emergency. If you're unable to either identify or stop the source of the water on your own, contact an emergency plumber right away. In addition to harming your flooring, standing or pooled water can lead to water-damaged concrete.

The Lewiston, ID homeowners’ guide to basement waterproofing services

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