Existing Customers Schedule Service

We're Hiring! Join Our Team

Pay Your Bill Online Pay Now

Contact Us For
A Free Estimate!

Basement Waterproofing, Crawl Space Encapsulation, Foundation Repair Conctractors in Sammamish!

Professional basement waterproofing, crawl space encapsulation, earthquake retrofitting, foundation repair & more! Call today for a FREE estimate!

Happy Customers Surrounding Sammamish, WA

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

Sammamish Basement Waterproofing, Foundation Repair & more!

Discover TerraFirma, basement waterproofing, crawl space, and foundation professionals since 2005. We specialize in fixing wet basements, musty crawl spaces, settling foundation and even earthquake retrofitting! We promise exemplary customer service with our proven repair systems. We are members of the CleanSpace & Supportworks dealer networks, so we can offer our customers the absolute best in product quality, customer care and expert training for our technicians.

Call us today to learn more about our array of services in Sammamish:

  • Crawl space repair
  • Crawl space encapsulation
  • Basement waterproofing
  • Foundation repair
  • Earthquake retrofitting
  • And more!

Crawl space encapsulation in Sammamish

Is your crawl space musty? Could there be mold growth exposing your family to harmful allergens? Perhaps humid conditions have caused your wooden floor joists to rot and compromise the structural integrity of your Sammamish. If any of these issues are affecting you and your home, TerraFirma can help. We specialize in seamless crawl space encapsulation, as well as other crawl space repairs. Repairing your crawl space is top priority if you are aiming to improve the overall air quality and value of your investment. Our crawl space repair options in Sammamish:

  • Vapor barriers
  • Sump pumps
  • Interior drainage options
  • Crawl space waterproofing
  • Exterior downspout extensions
  • And more!

We want our customers to be aware of our process and involved in every decision. That's why we customize our crawl space solutions to fit your needs in Sammamish.

Basement waterproofing specialists

Similar to crawl space encapsulation, basement waterproofing will significantly increase the value of your home and indoor air quality. This will eliminate mold growth, harmful allergens and other potential dangers for the residents in your home. If you are tired of standing water in your basement, leaky basement walls, and musty odors, call TerraFirma today. We offer full-service basement waterproofing in Sammamish:

  • Drainage systems
  • Sump pumps
  • Wall coverings
  • Basement dehumidifiers
  • Window wells & additional products

Call today to schedule your free basement waterproofing estimate!

Foundation services in Sammamish

TerraFirma provides foundation repair and other structural repairs for your Sammamish property. No more bowing walls and floors, cracked floors, structural settlement or tilted chimneys. We provide Sammamish homeowners with trusted, professional installation of our foundation repair systems:

  • Foundation wall anchors
  • Foundation pier systems
  • Crawlspace support posts
  • And more!

Call today to schedule your FREE, no cost, no obligation estimate for foundation, crawl space and basement repair. We look forward to helping!

Service Area
Free Quote