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Best basement waterproofing pros near La Conner, WA

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TRUSTED BY LA CONNER, WA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon19
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in La Conner - Updated Nov 2026

Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.2(
72
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving La Conner, WA and surrounding areas

Approved (Corporate)

In business since 1974

Free estimates

Warranties offered

"David and Cody from John's Waterproofing went straight to work; they quickly found the problem, showed me the problem, discussed what would have to be done to fix the problem, fixed the problem, then thoroughly cleaned up. Very nice people to work with, from the schedulers through the technicians."
New Home Encapsulation
SilverGlo Insulation
CleanSpace
SaniDry Dehumidifier
Puddling in Basement

+7

Response time11 hrs
Response rate94%
30 neighbors recently requested a quote
Near Me Roofing Company
5.0(
74
)
Basement Drainage Channels - Repair

Serving La Conner, WA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"Excellent service and very thorough with explanation and getting the right. I researched many skylight installation companies and decided to hire Ari and Elijah. I will recommend my colleagues and friends and family. I will absolutely use this roofing company for any roof work on my house."
Response time4 days
Recommended by80%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 La Conner, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"We’ve had a lot of crews in our home for various projects over the years, and I have to say this was one of the most courteous. They worked hard, navigating through our kitchen to access the basement and I really appreciated their efforts. Thank you MTU, we now have safe walls in our cellar and fresh beams to keep the house standing ;)"
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 SeaTown Electric Heating and Air
SeaTown Electric Heating and Air
4.7(
1,638
)
Basement Drainage Channels - Install

Serving La Conner, WA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"4 hyberheat mistubishi mini splits (2 of them extra powerful) and a great outdoor unit $30k 4 years free financing Far better deal than Blue Flame and others and no sleezy salesman tactics. Service was good too. A broken seal meant water was getting into the basement. They came in 18 minutes and fixed is super fast!"
Seattle's Rewire Specialists
Generator
Tesla Chargers
Knob and Tube Removal
Ductless Install

+26

Response time1 day
3 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Gaspar Services
Gaspar Services
4.5(
71
)
Basement Drainage Channels - Install

Serving La Conner, WA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Hired Johnny to clear my shop roof and glad I did. Fast,Friendly and professional. Can't say enough about how good of a job he did at a fair price. I hear he provides many different services and I will be adding his number to my speed dial..5 Stars !!"
After!
Composite deck
New kitchen
New living room
Doors

+58

Response time1 day
6 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for LaVergne Plumbing & Heating
LaVergne Plumbing & Heating
4.5(
11
)
Basement Drainage Channels - Repair

Serving La Conner, WA and surrounding areas

Approved

In business since 1951

Emergency services offered

Warranties offered

"Impressively quick service. Cody was very professional, responsive, and friendly. He explained the process, issue, and resolution. Very happy with this plumber and company."
Well Pump Equip
Frank
Well Pump Truck
Well Pump Service
Meet Frank!

+13

Response time6 hrs
Response rate100%
73 neighbors recently requested a quote
Avatar for Sound Home Preservation
Sound Home Preservation
New to Angi
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving La Conner, WA and surrounding areas

Approved

Free estimates

Warranties offered

Credit card accepted

A damp crawlspace, sticking doors, sagging floors, or musty odors are often signs of hidden structural or moisture damage. At Sound Home Preservation, we specialize in crawlspace encapsulation, wood rot repair, structural framing repairs, waterproofing, and foundation stabilization that protect your home's value and your family's health. Our experienced team provides honest evaluations, clear recommendations, and permanent solutions, without high-pressure sales tactics. \n \nSchedule your FREE Home Preservation Inspection today and discover what's happening beneath your home before minor issues turn into major repairs. Call now or request your inspection online, it only takes a minute.

Foundation Damage Signs
Foundation Damage Signs
13 neighbors recently requested a quote
Palm Construction, Inc.
5.0(
90
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving La Conner, WA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"We worked with Ali (sales manager) and Tony (project manager), who took the time to design a project that made sense for our property and our budget, made a number of suggestions and recommendations and were never pushy or tried to "sell" us on something. The crew really went above and beyond to provide top quality workmanship and overall we were in very good hands. Highly recommended!"
Recommended by100%of homeowners
Avatar for Expedeck
Expedeck
5.0(
24
)
Basement Drainage Channels - Install

Serving La Conner, 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
Showing 1-10 of 31
Basement Waterproofing FAQs, answered by experts

Topical sealers adhere to the surface of concrete to create a protective layer. In many cases, this is all you need for concrete that sees light to moderate traffic, such as your basement. Penetrating sealers, on the other hand, bond with the free lime in the top layer of concrete to form calcium silicate, which prevents liquid from passing through. This type of sealer protects the surface from water, oil, and gasoline spills.

The difficulty of adding a basement to an existing house can vary depending on the house’s location, the size of the basement, and the type and condition of the existing foundation. Adding a basement is a job best handled by the pros, so you’ll need to enlist professional help for this project.

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.

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

A crawl space is an area under the house that provides access to plumbing, electrical, heating ducts, and other HVAC units. Its purpose is to create a buffer between the ground and the living area, helping with ventilation, moisture control, and access for maintenance or repairs. Crawl spaces are most often seen in houses in North America which are built on concrete foundations versus other parts of the world where buildings are constructed differently.

The La Conner, WA homeowners’ guide to basement waterproofing services

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