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Products & Services

Basement Waterproofing
Waterproof Wall Products
DryTrak Basement Water Control System
Basement Dehumidifier
Sump Pump Solutions
Triplesafe Sump Pump
SuperSump Sump Pump
UltraSump Sump Pump
Interior Drainage Systems
Waterguard® Drainage System Drytrak®
Trench Drain WaterGuard®: Iron Ochre System (IOS)
Flowguard Drain
Well duct Window Well Drain
Warrantied Products & Solutions

Foundation Repair
Pier Systems
Push Piers
Slab Piers
Helical Piers
Smart Jack Crawl Space Support Posts
Foundation Wall Repair
Geo-Lock Wall Anchors
Powerbrace Basement Wall Repair System
CarbonArmor Reinforcing Basement Wall System
Bowing Foundation Wall Repair
Shotcrete Spray Concrete
Concrete Lifting

Concrete Repair
Concrete Driveway Repair
Concrete Pool Deck Repair
Concrete Walkway Repair
Concrete Patio Repair
Concrete Leveling & Lifting
Mudjacking Alternatives
NexusPro Cracked Concrete Repair

Earthquake Retrofitting

Free Estimates & Inspections

TerraFirma serving Cornelius, OR

I was very impressed with the whole operation start to finish....
Happy Customers Surrounding Cornelius, OR
Testimonials
Reviews
Work Requests

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Structural repair, crawl space repair, basement waterproofing, & more

Have wet basement walls, a cracked foundation, crawl space humidity, sinking concrete slabs, or other issues with your Cornelius, OR home? TerraFirma provides expert foundation repair, crawl space repair, concrete repair, and basement waterproofing solutions that restore the home's performance and image, and value overall.

We specialize in customizable solutions adaptable for all Cornelius, OR homes! Call 1-844-311-8051 or click below to schedule a free, no-obligation service estimate today!

Foundation repair solutions in Cornelius, OR

Even the smallest of structural issues can worsen to cause damage to the rest of your Cornelius, OR home. TerraFirma has reliable Supportworks products and solutions that not only restore your foundation but prevent ongoing damage in the future.

Our foundation repair services include:

  • Pier systems
  • Structural repair services
  • Foundation wall repair systems
  • Spray concrete
  • Concrete repair
  • And more!

Have you noticed structural settlement? Cracks within the foundation? A tilted Chimney? We have solutions for these issues and more!

Call or email us today to schedule a free consultation with a system design specialist, who will provide an initial foundation assessment and walk you through the entire repair process.

Expert radon mitigation services in Cornelius

TerraFirma offers radon testing, radon mitigation systems, and indoor air quality services and more throughout Oregon and Washington. Radon is a potentially life-threatening odorless, tasteless, and silent gas that is in one of every fifteen American homes. TerraFirma has trained experts that are certified in radon testing, mitigation, and more. If your family in Cornelius has been showing signs of illness that could be related to radon or other indoor pollutants, give them a call today to get cleaner air and a better education & understanding of how to prevent radon from getting back in.

Restore & encapsulate your crawl space

Interested in crawl space solutions that fix water build-up, humidity, mold growth, and structural issues and provide added storage space and protection? The crawl space repair system from TerraFirma is the solution! Not only does TerraFirma restore your Cornelius, OR crawl space, they also seal the below-grade space to protect it from the elements and for added storage space!

Our crawl space repair & encapsulation services include:

  • Crawl space sump pumps
  • Crawl space vapor barriers
  • Crawl space access wells
  • Downspout extensions
  • And more!

Wet basement repair products & solutions

A wet basement can cause serious issues with the overall structure of your Cornelius, OR home. We specialize in basement waterproofing solutions that repair damaged below-grade spaces and provide added water protection.

Our basement waterproofing services include:

  • Waterproof wall products
  • Basement crack repair
  • Basement dehumidifier
  • Basement sump pump
  • Interior drainage solutions
  • Window well drains
  • Downspout extensions
  • And more!

Interested in patented Basement Systems products and services that do more than provide temporary fixes? Our warrantied solutions are just what you need for long-term solutions!

Concrete repair contractors

Sinking, cracked, and weak concrete looks as unappealing as dangerous, as they are a serious falling hazard. TerraFirma isn't interested in providing services that will make your Cornelius, OR home messy and end up costing you more. That is why we offer our polyurethane concrete solution, NexusPro, cracked concrete repair. This innovative concrete repair solution applies quickly to produce durable, long-lasting results without the mess and stress.

Our concrete repair services include:

  • Concrete leveling
  • NexusPro cracked concrete repair
  • Concrete sidewalk repair
  • Concrete driveway repair
  • Concrete pool deck repair
  • Concrete patio repair
  • Mudjacking alternatives
  • And more!

Wet basement, crawl space, foundation repairs & more

Since 2005, TerraFirma has offered reliable foundation repair, crawl space repair, basement waterproofing, concrete repair, earthquake retrofitting services that restore Cornelius, OR homes and provide lasting protection.

Call 1-844-311-8051 or click below to schedule a FREE, no-pressure service estimate for any of our services in Cornelius, OR!

Work Requests From Cornelius, OR
Project Location: Cornelius, OR
Concrete patio cracked and needs leveling
Project Location: Cornelius, OR
Inspector discovered water in the crawlspace upon moving into the home last month. Services needed: removal of existing barrier, installation of 3" pipe system, installation of new catch basin and sump pump, connection of discharge pipe to drains, and installation of new vapor barrier. Please provide me with an estimate or call to schedule an inspection. Thanks!
Project Location: Cornelius, OR
My main concern is the 4-6 inch drop in my garage floor on the side where it attaches to the house. Secondly, depending on the cost to repair the garage, I would like to get a quote to level my driveway and rear patio. Please email me or call after 6pm. Thank you.
Project Location: Cornelius, OR
Our crawl space is musty and smells
Project Location: Cornelius, OR
Would like a quote to understand the cost of updating a crawl space to ensure maximum protection from the environment and minimal heat loss from the living space above it.
Project Location: Cornelius, OR
Crawl space could be warping the sub flooring. Additional information: Main Area of Concern: Crawl Space
Project Location: Cornelius, OR
Sagging floor joist Additional information: How did you hear about us: Internet Main Area of Concern: Crawl Space
Project Location: Cornelius, OR
Hello. I need an estimate on fixing standing water in my crawlspace. Thanks.
Project Location: Cornelius, OR
I have a leak in the basement. I need a quote for repair.