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We Provide Basement Waterproofing in Seattle, WA

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Your local basement waterproofing company in Seattle, WA is TerraFirma Foundation Systems

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We specialize in foundation waterproofing using quality Basement Systems products. We will design a customized system to keep your basement dry. As your local Basement Systems contractor, we can help you choose the best basement waterproofing options for your home.

For a FREE no-obligation basement waterproofing cost estimate in Seattle, WA, please fill out the form and your local Basement Systems company will contact you shortly.

Basement Waterproofing & Repair Services offered in Seattle:

  • Foundation Waterproofing
  • Interior Drainage System Installation
  • Sump Pump Installation & Replacement
  • Basement Dehumidifier Installation
  • Basement Leak Repair
  • Foundation Crack Repair

Basement Sump Pump Systems

If you get water in your basement every time it rains or you have an old sump pump that can’t keep up, a new basement sump pump can help keep your basement dry. Basement Systems has tested many pumps over the years and we use Zoeller pumps because we know they work.

Sump Pump Features:

  • Durable cast-iron pumps
  • Quiet operation
  • Battery-powered backup option for operation during power outages
  • Patented WaterWatch Alarm alerts of high water level

Basement Dehumidification

Moisture in the basement leads to mold growth that can damage your home, make you and your family sick, and make your basement and whole house smell musty. The solution is to remove moisture from the air. The SaniDry Sedona basement dehumidifier and air system from Basement Systems wrings the moisture from basement air and makes the damp feeling and musty smell go away!

SaniDry Sedona Features:

  • World’s most efficient dehumidifier without a bulky heat exchange
  • Automatic drainage - no buckets of water to empty
  • Automatic controls maintain ideal humidity level

Foundation Repair

Foundation cracks and bowing walls aren’t just unsightly - they easily allow water to leak into the basement and they compromise the structural integrity of your home. Whether your basement is wet or not, we offer a full-range of home foundation solutions, including helical piers, basement wall anchors, and more.

Don’t let your foundation problems get worse - contact us today to schedule your on-site foundation inspection and free foundation repair cost estimate.

Why More Seattle Homeowners Choose Us:

  • Custom-Designed Dry Basement & Structural Repair Solutions
  • Exclusive Patented Products
  • Proven Effective for Over 25 Years
  • Transferable Lifetime Warranty on Drainage Systems
  • Financing Options May Be Available - Ask Your Local Dealer

Service Area Zip Codes:


Recent job requests for basement waterproofing in Seattle, WA:

Project Location: Seattle, WA 98107

Comment: Flooded basement. Wish to find source

Project Location: Seattle, WA 98117

Comment: I've got wet basement issues.

Project Location: Seattle, WA 98105

Comment: After excessive rain, water started coming in a room in our basement.

Project Location: Seattle, WA 98119

Comment: Need moisture control in finished basement (approx 500 sq fr

Project Location: Seattle, WA 98126

Comment: In need of waterproofing our basement garage.

Project Location: Seattle, WA 98146

Comment: We currently in need of basement waterproofing in our attached garage. There is currently sings of efflorescence in the basement. We do not have a sump pump installed. I think the previous owners installed a french drain system, but it does not drain out the the end.

Project Location: Seattle, WA 98118

Comment: Basement flooded

Project Location: Seattle, WA 98250

Comment: Wish to avoid a wet basement if the pump fails or if there is a power outage.

Project Location: Seattle, WA 98155

Comment: Wet basement around couple spots

Project Location: Seattle, WA 98178

Comment: There have been several days of rain & my basement is now wet from this. I'd like to find a solution to this issue.

Project Location: Seattle, WA 98119

Comment: Water leaking into basement from under window frame and possibly under floor tiles

Project Location: Seattle, WA 98144

Comment: Water leaking in 2 areas of our basement during constant rainfall

Project Location: Seattle, WA 98188

Comment: Finished basement

Project Location: Seattle, WA 98115

Comment: Water in basement. Suspect foundation.

Project Location: Seattle, WA 98178


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