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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
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

Air Purifier

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TerraFirma Basement Waterproofing in 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 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 Dallas, OR homes! Call 1-866-486-7196 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 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
  • 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 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
  • Downspout extensions
  • And more!

Wet basement repair products & solutions

A wet basement can cause serious issues with the overall structure of your Dallas, 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 Dallas, 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 Dallas, OR homes and provide lasting protection.

Call 1-866-486-7196 or click below to schedule a FREE, no-pressure service estimate for any of our services in Dallas, OR!

Job Stories From Dallas, OR
Sticking Front Door in Dallas, OR

Steve K. observed that his front door was becoming increasingly difficult to open and close, prompting him to research potential causes. Suspecting a foundation issue, he reached out to TerraFirma for assistance.

System Design Specialist Dennis Gibson assessed Steve's property. He noted that the home's foundation protruded 2 inches on the south corner and 1 inch at the front door, which was Steve's primary concern. Additionally, Dennis discovered that the crawl space contained only a malfunctioning Zoller sump pump, resulting in a muddy environment and standing water beneath Steve's residence. To address these issues and stabilize the home, Dennis recommended the installation of helical piers and a new UltraSump Pump. He collaborated with Bradley Twyman and his team to devise a plan, and the crew successfully completed the project within two days.

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.

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