Got a wet basement? Musty odors? Protect your home with our proven solutions & lifetime warranty.

A dry, healthy home starts here.
Contact your local dealer or call 1-800-638-7048

Find A Dealer Near You!

Home»Basement Waterproofing»Washington»Seattle

We Provide Basement Waterproofing in Seattle, WA

Click to see why people hire us

Recent work requests in Seattle, WA

Project in Seattle

Hello! My basement has been flooding from all the rain we have gotten recently. I think it could be from the gutter drains or soaking in through the walls because of the high water table. I would love professional help for whatever the best solution is. Thank you!

Project in Seattle

Waterproof unfinished basement

Project in Seattle

Looking for solution to keeping a basement space dry and ventaladed.

Project in Seattle

Flooded basement. Wish to find source

Project in Seattle

I've got wet basement issues.

Project in Seattle

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

Project in Seattle

Need moisture control in finished basement (approx 500 sq fr

Project in Seattle

In need of waterproofing our basement garage.

Project in Seattle

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 in Seattle

Basement flooded

Project in Seattle

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

Project in Seattle

Wet basement around couple spots

Project in Seattle

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 in Seattle

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

Project in Seattle

Water leaking in 2 areas of our basement during constant rainfall

Project in Seattle

Finished basement

Project in Seattle

Water in basement. Suspect foundation.

Project in Seattle

Hi there. The interior basement perimeter has an exposed gutter system that has no built-in drainage, and in order to refinish the floors I would like to know the next steps to getting a working plumbing system that would allow for the gutters to be fully covered by flooring without the potential for stagnant water and dampness occurring. I'd like to schedule a consultation. Thanks!

Project in Seattle

I have a basement apartment that has high humidity levels. Need help determining where it comes from and to fix the issue.

Project in Seattle

Redoing basement flooring

Project in Seattle

We are looking to purchase the Turtl Crawl Space Entry one or two to self install. Do you sell them and ship them direct? If yes, what are sizes and color options? Thank you.

Project in Seattle

Wall leak in concrete basement, possibly also where floor meets wall. 2 places it appears

Project in Seattle

Vertical crack in basement, would like it sealed. Minor repair job

Project in Seattle

Assess repair and source of leakage and silt coming through foundation to inner stairs

Project in Seattle

I have a sump pump in my basement but there is not enough water getting to the tank. I need someone to install feeder lines to supply more water to the pump for removal.

Project in Seattle

Basement flooded in heavy rain. Need diagnosis and repair as well as cleanup. Please help.

Project in Seattle

Leaky wall

Project in Seattle

Sump pit is already in place- looking for installation of the pump and appropriate piping/drainage as well as an alarm

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

Your Name

Address

Phone Number

Email Address

Questions and Comments

By submitting, you agree to receive calls and text messages from Basement Systems, Inc. about project needs. Msg and data rates may apply; message frequency may vary. Reply STOP to opt out; HELP for support. Consent is not a condition of purchase. Terms of Use | Privacy

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

Get A FREE Quote!

Service Area Zip Codes

98101
98102
98103
98104
98105
98106
98107
98108
98109
98111
98112
98113
98114
98115
98116
98117
98118
98119
98121
98122
98124
98125
98126
98127
98129
98131
98133
98134
98136
98138
98139
98141
98144
98145
98146
98148
98154
98155
98158
98160
98161
98164
98165
98166
98168
98170
98174
98175
98177
98178
98181
98185
98188
98190
98191
98194
98195
98198
98199

Recent job requests for basement waterproofing in Seattle, WA

Seattle, WA 98112

Hello! My basement has been flooding from all the rain we have gotten recently. I think it could be from the gutter drains or soaking in through the walls because of the high water table. I would love professional help for whatever the best solution is. Thank you!
Seattle, WA 98116

Waterproof unfinished basement
Seattle, WA 98101

Looking for solution to keeping a basement space dry and ventaladed.
Seattle, WA 98107

Flooded basement. Wish to find source
Seattle, WA 98117

I've got wet basement issues.
Seattle, WA 98105

After excessive rain, water started coming in a room in our basement.
Seattle, WA 98119

Need moisture control in finished basement (approx 500 sq fr
Seattle, WA 98126

In need of waterproofing our basement garage.
Seattle, WA 98146

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.
Seattle, WA 98118

Basement flooded
Seattle, WA 98250

Wish to avoid a wet basement if the pump fails or if there is a power outage.
Seattle, WA 98155

Wet basement around couple spots
Seattle, WA 98178

There have been several days of rain & my basement is now wet from this. I'd like to find a solution to this issue.
Seattle, WA 98119

Water leaking into basement from under window frame and possibly under floor tiles
Seattle, WA 98144

Water leaking in 2 areas of our basement during constant rainfall