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Products & Services

Basement Waterproofing
Waterproof Wall & Floor Products
DryTrak Basement Water Control System
FlexiSpan Wall Crack Repair
Floodring Water Heater Protection
Basement Dehumidifier
Sump Pump Solutions
Triplesafe Sump Pump
SuperSump Sump Pump
UltraSump Sump Pump
SmartSump Sump Pump
Interior Drainage Systems
Exterior Drainage Systems
Waterguard® Drainage System Drytrak®
Monolithic Floor Drains
SmartPipe Drain
Trench Drain WaterGuard®: Iron Ochre System (IOS)
Flowguard Drain
Well duct Window Well Drain
Bright Wall Basement Wall Panels
Warrantied Products & Solutions

Crawl Space Repair & Encapsulation
Crawl Space Moisture Barrier System
Crawl Space Structural Repairs
Crawl Space Access Wells & Doors
Crawl Space Sump Pumps
Triplesafe Sump Pump
SuperSump Sump Pump
UltraSump Sump Pump
SmartSump Sump Pump
Downspout Extensions

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
PolyLevel Concrete Lifting

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

Earthquake Retrofitting

Free Estimates & Inspections

Company Awards
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]
Inc. Fastest-Growing Private Companies in America
TerraFirma Foundation Systems ranked 1,1718 out of 5,000 companies on Inc. Magazine's Fastest Growing Private Companies in America. In Oregon,... [Read more]
More Awards

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 has been providing expert foundation repair, crawl space repair, concrete repair, and basement waterproofing solutions that not only restore the performance and image of the home but also the 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 porducts 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 system design specialist, who will provide an initial foundation assessment as well as walk you through the entire repair process.

Restore & encapsulate your crawl space

Interested in crawl space solutions that not only fix water build-up, humidity, mold growth, and structural issues but also 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 & doors
  • Downspout extensions
  • And more!

Wet basement repair products & solutions

Leaky basement windows, walls, and floors can cause serious issues with the overall structure of your Corvallis, OR home. We specialize in basement waterproofing solutions that not only repair damaged below-grade spaces but also provide added water protection.

Our basement waterproofing services include:

  • Waterproof wall & floor products
  • Water heater protection
  • Basement dehumidifier
  • Basement sump pump
  • Wall crack repair services
  • Interior & exterior 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 it is 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 PolyLevel concrete leveling and NexusPro cracked concrete repair. These innovative concrete repair solutions apply quickly to produce durable, long-lasting results, without mess and without stress.

Our concrete repair services include:

  • PolyLevel concrete leveling
  • NexusPro cracked concrete repair
  • Concrete sidewalk repair
  • Concrete driveway repair
  • Concrete pool deck repair
  • Concrete patio repair
  • Mudjacking
  • 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 Corvallis, 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 in Corvallis, OR!

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
NW Huntington Dr in Corvallis
We are having cracking drywall and sloping floors. Concerned about foundation issues.
NW Acorn Ridge Drive in Corvallis
I'm wondering if I can get an assessment of whether I have a foundation problem or not. I have a crack at the base of one wall, with some separation between the wall and the wood floor.
NW Fair Oaks Drive in Corvallis
Hello, My name is Gerrad, and I am having problems at my house related to soil heaving. We bought our house in 2017, and at the time, all the walls were covered with wall paper, so we didn't notice the cracks in the walls. Now that we have gone through a couple of dry/wet cycles, we notice that the additions on our house rise and fall with the soil and as a result, the cracks get bigger and smaller. The problem is mainly where the additions of the house are, and if you look at where the new foundation is, it is clear that it is rotating away from the house. I was hoping to get some information about what my options are for helical piers to correct this problem. Thank you very much for your time and help, and I look forward to hearing back from you. Sincerely, Gerrad
NE Plymouth Circle in Corvallis
Foundation is failing under the portion of my house where addition was installed. Can detect floor sloping, cracked drywall, doors not shutting/latching. Starting to affect the main house where the addition attaches. Addition was constructed before I purchased the home, probably around 2000.
NW Elder St in Corvallis
Odors/Smells emitting from crawl space. We had a outside hose bib that was leaking under house. That's fixed but still smells in house. Needs cleaned up under house. Thanks
SE Crystal Lake Drive in Corvallis
I have a 760-sf home with shallow crawl space and no vapor barrier or floor insulation. Interested in a quote for at least the vapor barrier and to know whether some excavation is needed.
in Corvallis
Cracks in foundation
SE Alexander Place in Corvallis
Front door is sticking and a crack has appeared in the corner of the living room wall.
SE Peoria Rd in Corvallis
Single story 1500 sqft home. Sinking cracked foundation on a potion of one side. House was built in 1960.
NW HIGHLAND PL in Corvallis
My patio has large cracks on it I believe caused by planters and an upper deck which was added at a later date
Bellfountain Road in Corvallis
I have cracks forming on the interior walls, which had a beam put in before we bought the house. There is also an exterior door on a different side of of the house that is on a slab that isnt shutting now.
Nw Poppy Drive in Corvallis
Am interested in seeing if there is any evidence of water damage and if my vapor barrier needs to be replaced
NW Skyline Dr in Corvallis
I have a concrete slab at our entry way that is completely hollow underneath. I would like your opinion on if and how it should be filled. Thank you, Albrecht
in Corvallis
Moisture coming in thru basement wall where the window egress is at, needs some kind of seal or fill in the cracks
NW Arthur Circle in Corvallis
Cracking walls and sticking doors in several rooms of house.
NW McDonald Cir in Corvallis
Crack and settling on front porch steps. Also some driveway settling.
in Corvallis
Cracked foundation, interior crack from window to corner of house with cracked foundation, interior crack in hardwood floor in that corner, exterior crack in facia board in that corner area.
NW Lyman Drive in Corvallis
Gaps in the crawl space vapor barrier. Some mice activity in the crawl space, have made holes in the vapor barrier. Dusty crawl space needs to be cleaned so I can get in and replace exhaust ducts.
SW Agate Ave in Corvallis
Crawl space with previously installed interior perimeter drain, sump pump and ground vapor barrier but persistent mold and vermin intrusion. Additional information: Main Area of Concern: Crawl Space
in Corvallis
The main floor is settling a lot and there is water in a corner of the basement when it rains a lot. Additional information: Main Area of Concern: Foundation
Serving the following Corvallis, OR zip codes
97330, 97331, 97333, 97339, 97330, 97331, 97333, 97339