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HomeAdvisor - Best Of 2020 Award
TerraFirma was proud to have received the 2020 HomeAdvisor 'Best Of' Award. This award recognizes only the top percent of... [Read more]
Elite Service Professional Award
By receiving no homeowner complaints and having more than five five star ratings on our profile, TerraFirma was awarded the... [Read more]
Home Advisor Top Rated Company
TerraFirma earned the "Top Rated" award from Home Advisor, a home improvement website that millions of homeowners trust to help... [Read more]
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TerraFirma serving Renton, WA

Basement waterproofing, foundation repair, crawl space encapsulation & more. Call today for your FREE estimate or complete the form to the right!

Happy Customers Surrounding Renton, WA
Work Requests

Click the icons to see what our customers had to say.

Foundation, crawl space, basement waterproofing services in Renton

TerraFirma has been fixing problematic basements, crawl spaces, & more since 2005. Our Supportworks and CleanSpace memberships grant us access to exclusive repair, waterproofing and encapsulation systems not available from other contractors nearby. Call TerraFirma today for a no cost, no obligation estimate for our array of repair services.

Our services in Renton:

  • Basement Waterproofing
  • Crawl Space Repair
  • Crawl Space Encapsulation
  • Foundation repair
  • Commercial foundation services

Basement waterproofing in Renton:

Renton homeowners know the symptoms of a leaky basement. There may be standing water, water leaking through the floors and walls, mold growth and other unpleasant signs. Luckily, TerraFirma has developed a comprehensive basement waterproofing system, guaranteed to keep your basement dry for years to come.

Our basement waterproofing solutions:

  • Waterproof walls
  • Waterproof flooring
  • Dehumidifier & sump pump installation
  • Interior & exterior drains
  • Downspout extensions
  • And more!

Call today to add value to your basement, and cleaner, healthier air to your home. We offer no cost, no obligation estimates in Renton!

Crawl space encapsulation & repair

TerraFirma crawl space repair & encapsulation services:

  • Downspout extensions
  • Crawl space vapor barriers
  • Crawl space access wells & doors
  • Crawl space sump pumps

Are you interested in lowering utility bills, improving interior air quality, eliminating mold growth and adding usable storage space to your Renton property? If yes, TerraFirma is your one-stop-shop for crawl space repair and encapsulation. Our unique CleanSpace encapsulation system provides homeowners with quality, tested crawl space products and expert contractors to ensure the job is done right.

Call today to schedule an inspection of your home's crawl space and receive a no cost, no obligation FREE estimate for repair.

Foundation repair services

At TerraFirma, we know the importance of a solid foundation, which is why we offer an array of foundation repair options like pier systems, structural repair services, spray concrete, foundation wall repair, cracked wall & floor repair & more!

Call, email or complete the provided form to learn more about our foundation repair, crawl space repair & our other services!

Work Requests From Renton, WA
Vicinity of in Renton
We have a crack on the concrete base of our house. We want to know whether there's any foundation issue.
Vicinity of in Renton
We have a sump pump in our crawl space that stopped working. The pump was installed in 2008. We would like to have the pump replaced. Our crawl space is approximately 38 x 36.
Vicinity of in Renton
Sinking foundation, house is sagging
Vicinity of in Renton
I have serious crawlspace issues.
Vicinity of in Renton
Looking to install an interior foundation footing drainage system in my basement along around 3 feet of wall to drain into an existing downspout.
Vicinity of in Renton
I want to encapsulate my crawl space. Its about 500 square feet. It currently has a vapor barrier and fiber glass insulation underneath subfloor. I want to also install insulation foam boards and close out exterior vents. We are open to installing a dehumidifier. Let us know what you're rates are or if you are willing to visit the house for an inspection. THANK YOU
Vicinity of in Renton
I have sagging floors in my home. It is a small 2 bed 1 bath built in 1942. I am curious on what the cost would be to fix the problem.
Vicinity of in Renton
We are buying a home and found standing water in the crawl space under foundation about 6 inches. We need a complete repair estimate to remove the water, seal all leaks, and repair wood damaged from water if found.
Vicinity of Hoquiam PL SE in Renton
Entry way settled 1-2inch lower than driveway
Vicinity of Burnett Ave S in Renton
House from 1926 that is crooked, as are most in the neighborhood. Would like to get it stabilized, corrected, and understand its limitations as we plan a remodel. Email is best for initial conversations as I can be meetings, unable to pick the phone. Thanks.
Vicinity of Monterey Ave NE in Renton
Cracking ceiling prompted some looking and noticed the foundation wall had a crack going all the way through. Concerned settling has occurred and may need repair.
Vicinity of in Renton
Detached garage slab sinking in one corner. Need evaluation please
Vicinity of in Renton
Concerns with shifting of 1956 home. Crack in the ceiling and you can feel the dips in the hardwood floor. Would like an assessment and recommendations for repair.
Vicinity of in Renton
Need a quote for clean up/treatment and insulation
Vicinity of Queen Ave Ne in Renton
Some signs of foundation slipping-- stair cracks, drywall cracks.
Vicinity of in Renton
Foundation cracks and sloping floors.
Vicinity of Se May Creek Park Dr in Renton
My crawl is maybe 100 square feet and looks very similar to the before picture in your video I saw on Facebook. Nice are getting in through the floor I believe. Would like to cover it so they can't get in.
Vicinity of Hoquiam Avenue NE in Renton
Crawlspace clean up. Poor energy efficiency, weird smell in one end of home. We know there has been raccoons and/or cats under there in past.
Vicinity of in Renton
We cut a hole in the foundation to access the crawl space. Concerned it is structurally sound. Large settling crack inside the house just above that spot, crack was there prior to cutting, and it got bigger after we cut.
Vicinity of Cedar Ave S in Renton
I have a slab on my front porch that has begun to sag to one side. It supports part of the roof and has cracked some of the sidewalk. I would like to see if you could provide an estimate to raise and stabilize it.
Serving the following Renton, WA zip codes
98055, 98056, 98057, 98058, 98059, 98055, 98056, 98057, 98058, 98059