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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
SmartJack
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 Dallas, OR

The guys worked hard and fast. The work done looks solid and professional and well done. They started at 8:00...
Happy Customers Surrounding Dallas, OR
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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 Dallas, 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 Dallas, OR homes! Call 1-844-311-8051 or click below to schedule a free, no-obligation service estimate today!

Foundation repair solutions in Dallas, OR

Even the smallest of structural issues can worsen to cause damage to the rest of your Dallas, 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 Dallas, 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 Dallas, 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 Dallas, 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 Dallas, 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 Dallas, OR!

Job Stories From Dallas, OR
Hood River, OR Crawlspace Encapsulation

    Interested in breathing cleaner air inside your home? Saving money on energy bills? Consuming less energy and resources? Or adding warmth and comfort to you and your family? As a home owner, you'd be crazy to say no to any of these. Although for home owner Brian R. of Hood River, OR his crawl space project was more reactive due to recent flooding, he still enjoyed all these benefits. 

    There are four steps in encapsulating your crawl space to achieve all the benefits above and more. First, control groundwater seepage. By using dimpled drain matting, smart pipe, drain tile, and a sump pump, Brian completed the first step of encapsulation. Second, isolate the ground from the house via a thick, durable and long lasting liner. Cleanspace is the best option on the market today. Third, condition the air. We used a special dehumidifier called SaniDry CX, a unit specific to crawl spaces. And lastly block off all vents with Everlast Vent Covers. This ensures we have 100% control over the air under the house.

    Four simple steps and two days later, Brian can rest at ease knowing he and his family are enjoying the benefits above and much more.

Reimer Water Issues in Dallas, OR Crawl Space

    Stan R. of Dallas, OR noticed an increase in his water bill over the past 2 months and couldn't quite figure out why. He check all over the house and wound up in the crawl space looking at burst piper that were flooding under the home. Stan located our number in the phone book and called for a free estimate. Tim Cook was sent out shortly after to inspect his home.

    After inspection Tim confirmed that there wasn't a bigger ground water seepage problem, just the burst pipes. We were able to refer Stan to a quality plumbing company to get the job done. Since Tim was in the crawl space already, he did recognize Stan's need for a new vapor barrier, and we were at least able to help him out with something. Not every time are our solutions and services the best fix for a specific issue. No matter. We are a servant of our community and happy to help in any way that we can.

Exterior Wall Cracks, Sign of Foundation Settlement Hood River, OR

    Probably the most obvious sign of foundation or soil settlement are cracks on the outside of the home. Occasionally interior wall cracks are too small to notice; However, exterior cracking in the foundation or the house itself are good indications that your home is experiencing foundation settlement. While out in his yard, Paul J discovered cracks in his cement foundation. As he followed the cracks up the wall, he noticed separation between wall panels, openings into the basement and even an addition to his home that had began to separate from the original house. Paul searched the internet for a foundation contractor that he could trust to permanently stabilize his foundation. After finding TerraFirma and reading positive reviews, he called in for a free estimate. 

    TerraFirma System Design Specialist Ryan Lahley met Paul at his home in Hood River, OR and inspected his foundation. The cracks he discovered were the cause of nearly 1.5" of settlement around the back corner of his home. the solution to level and permanently stabilize his foundation was a series of 5 helical piles. What is unique about helical piles is that they don't drill down and remove earth, they screw right on through it. This allow the soils to rehab around the piles easier and provide better support and stabilization to the structure above.

    Paul's foundation is now permanently stabilized. We were even able to achieve 1.5" of lift to return the foundation back to level. 

Sinking Floors No More

Settling soils don't care if your home was built in 2000 or 1900. In fact many new houses are experiencing settlement issues, both interior and exterior, because all the good, stable soil has already been built upon. This 1997 home in Dallas, Oregon was experiencing interior settlement causing wall cracks in the dry wall and the front end of the home to slip.

As diagnosed by Ryan Lahley, there were two reasons for this interior settlement. The first was obvious, in that simply, the soil was settling in the middle of the house causing the floors to sag, the cracks to form and the front end of the home to slip. The second reason was due to improper water drainage in the crawl space creating pools which ate away at the wood supports.

The solution, to permanently fix both of these issues, was to install a series of Smart Jacks and a new waterproofing system. By securing Smart Jacks under the main wood supports, we were able to restore strength and stability to the inner sagging floors. Next, by installing a crawl space perimeter drain tile and smart drain to collect water and a sump pump to remove the water, we were able to manage the water levels.

We have done work for these homeowners in the past and they continue to be pleased with our services. Their foundation is now permanently stabilized around the perimeter, throughout the interior and waterproofed under the home. A comprehensive solution to restore piece of mind and value.

Work Requests From Dallas, OR
NW Hillcrest Dr in Dallas
I live in Dallas, OR, and my dining room, which extends from the back of the house, rises and falls with the seasons. There are cracks in the drywall, but none I can find in the foundation. I would like to explore solutions.
SW HILL ST in Dallas
House was built in 1920 We can see it has foundation damage and would like to see what it might cost to repair
Richardson Td in Dallas
A 25 to 40 foot corner section of an addition has cracked and shifted. Believe it was a DIY project by previous owners who did it as cheaply as possible. If not checked may cause my spouse a lot of issues years down the road after I'm gone
Northwest Denton Avenue in Dallas
House is a little over a year old and having a lot of issue with doors as well as large cracks in soil around the house.
Oak Villa Rd in Dallas
Hi, We have had a history of moisture issues in our crawl space that we have (hopefully) fixed, but we still have some old rotted pier posts that need replace to relevel our floor. I'm interested in a quote to have this work done. Thanks! Additional information: Main Area of Concern: Crawl Space
Sw River Drive in Dallas
I'm in the process of purchasing a house and have limited time to get an estimate. In the shop behind the house the slab has cracked and sunk in one corner. The building is sagging where the slab has sunk. Additional information: Main Area of Concern: PolyLevel
SW Church St in Dallas
Would like inspection. 1924 built home and floor is not level.... concerned about settling and possibly rot. Additional information: Main Area of Concern: Crawl Space
SW Veazie St in Dallas
Access to crawlspace has inadequate clearance under the framing. Footing has a wood block that needs replacing. Foundation needs possible repair. Additional information: Main Area of Concern: Crawl Space
May RD in Dallas
House is 106 years old .
SW Fairview Ave in Dallas
Our foundation has sunk and has several vertical cracks. We are hoping to get it supported and fixed so we can finish the basement.
SE Uglow Ave in Dallas
My home is quite old, built in 1908 I believe we have a couple of cracks on the walls and think It my be due to the foundation. we need it inspected? Additional information: How did you hear about us: Internet Main Area of Concern: Foundation
Kings Valley Hwy in Dallas
Foundation settlement over crawl space has caused bowed foundation, cracks in front brick work and wall and ceiling cracks. Need to fix foundation before fixing decorative brickwork and interior cracks. Will be selling home soon. Additional information: How did you hear about us: Television Main Area of Concern: Foundation
SW Bridlewood Dr in Dallas
We've had a few new cracks show up in our house, and one of our doors is sticking more than usual. We'd like to see if there is anything to be concerned about. Additional information: How did you hear about us: Internet Main Area of Concern: Foundation
Orrs Corner Rd in Dallas
We bought our house about 3 years ago. Since that time, we have noticed doors starting to stick and small cracks in the drywall. We are very concerned about our foundation. Additional information: How did you hear about us: Television Main Area of Concern: Foundation
SE Greenbriar Pl in Dallas
Standing water under our home in the winter. Insulation in floor is falling down. Interested in an estimate for vapor barrier
NW Denton Ave in Dallas
We currently have a sump pump under our house, but are looking for additional drainage.. ie French drain/perf pipe with 3/4-" minus with a new vapor barrier. Can you do this at a reasonable cost?
S.E. Walnut Ave in Dallas
Wall cracks, sinking floors, door misalignment
E Ellendale Ave in Dallas
We have an small (872 sq. ft.), older home (built in 1910 I believe) and we'd like to have someone take a look at our crawl space to give us an estimate for necessary repairs. The floor supports need to be shored up and we have some issues with water drainage. It's a rather tight space for getting into and around in some areas.
Me Fern Ave in Dallas
Have standing water under house during rainy season and no floor insulation--home is on low elevation from those around it
E. Ellendale Ave. in Dallas
We'd like an expert to take a look at the crawl space and foundation of our older (1920's), small (827 sf) home to evaluate necessary work and give us and estimate.
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