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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 Corvallis, OR

Ryan was available for follow ups and furthers questions throughout the project time frame. ...
Happy Customers Surrounding Corvallis, OR
Work Requests

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Reviews From Corvallis
Testimonials From Corvallis
The office staff was courteous and helpful. I rate them a 10!
Testimonial by Robert V. from Corvallis, OR
We look forward to working with you in the future if we have any more home foundation projects.
Testimonial by Rick & Mary L. from Corvallis, OR
Patrick was very personable and professional.
Testimonial by Buzz B. from Corvallis, OR

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 Corvallis, 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 Corvallis, OR homes! Call 1-844-311-8051 or click below to schedule a free, no-obligation service estimate today!

Foundation repair solutions in Corvallis, OR

Even the smallest of structural issues can worsen to cause damage to the rest of your Corvallis, 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.

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 Corvallis, 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 Corvallis, 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 Corvallis, 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!

Radon Mitigation Experts in OR

Radon is a naturally occurring radioactive gas that has become the second-leading cause of lung cancer -- second only to cigarette smoke. It is not something you can see, taste, hear or touch, which makes it something you don’t want in your home. Did you know that almost one of every fifteen homes in America sufferers from elevated radon levels? TerraFirma has been helping homeowners just like you with radon testing, mitigation, and providing some basic radon education throughout Oregon and Washington if you are in Corvallis and require a radon inspection. Call TerraFirma today!

Our radon mitigation services include:

  • Radon mitigation systems
  • Radon testing
  • Indoor air quality services
  • Radon mitigation inspection
  • Radon and real estate
  • And more!
Job Stories From Corvallis, OR
Oregon State Campus Waterproofing Corvallis, Or

The percentage of homes in Oregon and throughout the northwest that have a basement rather than a crawl space are low; However, as TerraFirma is helping more and more customers, we are seeing more half basement half crawlspace type homes. The waterproofing process, through, is similar with a few added parts for complete water protection.

Jim C. has one of these half and half type homes and was experiencing water coming through the wall cold cracks and in heavy rain conditions coming up from the floor slab. As we know concrete is porous which allows water to seep through at the path of least resistance. The proper waterproofing system called for Waterguard to collect water coming through these two problem areas, and a more powerful sump pump for removal. In this case Smart Pump was powerful enough. In heavier more severe cases, Triple Safe Sump Pump is the best options. To give the basement/crawlspace area extra protection, Cleanspace Wall Liner was installed around the perimeter to isolate the cold and damp cement walls from the space helping to condition the air. 

With a new, efficient waterproofing system, Jim C. can be confident that his basement will be dry all the time, the air quality is improved and piece of mind is restored. 

Work Requests From Corvallis, OR
Project Location: Corvallis, OR
Interested in getting a quote for our crawl space
Project Location: Corvallis, OR
Have a crawl space that needs new vent covers. Not sure what the right/best option is and need advice.
Project Location: Corvallis, OR
The chimney tilts which makes the fireplace and wall crack
Project Location: Corvallis, OR
My home was completed in 2006. The front concrete stoop and two steps has sunk unevenly, up to two inches. I am the third homeowner so have no building details. It appears to be one continuous concrete pour. I would like an estimate on if and how much this could be corrected using your expanding foam technique. We corrected a similar problem in Colorado, so I am familiar with the process.
Project Location: Corvallis, OR
Hi there - we need some work done on the vapor barrier in our crawlspace.
Project Location: Corvallis, OR
I have moisture in my crawl space and would like to figure out the best way to deal with it.
Project Location: Corvallis, OR
I need someone to go under the house and inspect for water damage and any other issues.
Project Location: Corvallis, OR
Need bid for hillside home to correct setting on driveway and cracks. need ASAP-- first appointment in corvallis if possible
Project Location: Corvallis, OR
We are interested in an estimate for a seismic retrofit for our 1960's single level ranch home that needs foundation bolting. Is this something you can help us with?
Project Location: Corvallis, OR
I had a home inspection and there are a few cracks in the foundation of a home I may buy (currently rent).
Project Location: Corvallis, OR
I have a crawlspace under the main part of the home with a fairly active sump pump. Newer insulation and vapor barrier from a previous rodent problem. Still concerned about moisture level and rodent access.
Project Location: Corvallis, OR
I have a sidewalk next to my house that has settled and pulled away from the house. I'm interested in the foam lifting technique shown in your commercial. I would prefer an email response if possible because I'm often unavailable during the daytime. Thanks!
Project Location: Corvallis, OR
I have a foundation issue at the footings of two deck posts. One post has settled 2.75 inches and the other has settled 1.75 inches.
Project Location: Corvallis, OR
Crack corner foundation
Project Location: Corvallis, OR
Cinder block foundation cracking.
Project Location: Corvallis, OR
Two issues.. sinking drive way corner.. 3000sqft soggy mold ridden soil in crawl space
Project Location: Corvallis, OR
Cracked driveway
Project Location: Corvallis, OR
Hello, I'm hoping to get an estimate for a seismic retrofit. I have a 1960's single level ranch home that would need foundation bolting, gas auto-shut-off, and a brick chimney that would need reinforcing. Thank you! If anyone is available Wednesday, November 13th, I will be off work that day.
Project Location: Corvallis, OR
Cracks forming in foundation around our home.
Project Location: Corvallis, OR
My house was built in 1991, and I would like a seismic retrofit to bring it up to current code.
Serving the following Corvallis, OR zip codes
97330, 97331, 97333, 97339, 97330, 97331, 97333, 97339