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Products & Services

Basement Waterproofing
Waterproof Wall Products
DryTrak Basement Water Control System
Floodring Water Heater Protection
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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Your leading Cowlitz County, WA Wet Basement & Foundation Repair Company

We would recommend your company indefinitely and are glad we chose TerraFirma....
Happy Customers Surrounding Cowlitz County, WA

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Reviews From Cowlitz County
Testimonials From Cowlitz County
Josh was excellent. Knew his business and understood our issues. Gave us all our options. I would recommend...
Testimonial by William & Linda S. from Longview, WA
Ryan did a great job. He is professional and knowledgable.
Testimonial by Mike C. from Longview, 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 Cowlitz County, WA 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 Cowlitz County, WA homes! Call 1-866-486-7196 or click below to schedule a free, no-obligation service estimate today!

Foundation repair solutions in Cowlitz County, WA

Even the smallest of structural issues can worsen to cause damage to the rest of your Cowlitz County, WA 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 Cowlitz County, WA 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 Cowlitz County, WA 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
  • Water heater protection
  • 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 Cowlitz County, WA 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 Cowlitz County, WA 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 Cowlitz County, WA!

Job Stories From Cowlitz County, WA
Foundation Settling Prevented With Push Piers in Longview, WA

    Frank C a local Longview, WA resident saw that his foundation was not level. One side was starting to sink significantly. Frank knew of a friend who worked at TerraFirma Foundation Systems, Patrick Dunn. SO he called the office to have Patrick come out.

    That came day Patrick came to do a full inspection of his property. He recommended the push pier system for the settling foundation, which works by being connected to the wall that is settling or slanting.  Next, the piers are then driven into the ground hydraulically until a suitable loading bearing stratum is encountered.  Over time the foundation slowly starts to lift and eventually will come back to normal. Also he recommended Smart Jacks which are installed in the crawlspace to provide supplemental support for the failing structure.

    With the help of the Push Piers and Smart Jacks, the foundation is no longer sinking.

Water Seepage into Longview, WA

    Longview, WA native Tony B was having a problem with water leaking into his basement. He was worried that it would create major problems in the future so he started looking for a company that could help him. While looking through the internet he came across an ad for TerraFirma Foundation Systems and decided this was the company he needed to call.

    A few days after speaking to the office they sent out Deryl George to inspect the basement. He recommended a few products. The first was the CleanSpace wall system which is a vapor barrier that is attached to the walls of the basement and will prevent water and moisture from coming through into the basement. This wall system would also drain that water into the WaterGuard interior drainage channel which is installed along the perimeter of the basement to catch incoming water seepage and direct it towards a sump pump.

    With the basement now completely protected, Tony can use his basement as he needs without any water damage.

Crawlspace Conditioning to Floor Restoration in Battle Ground, WA

Cracks are forming in the walls above a widows and in the corner on the second floor. More cracks appear in the bathroom under the stairs on the first floor. The interior floors are sagging and have a bounce to them when you walk across. Does it sound like I'm describing your house? Many people who suffer from crawl space issues see the aftermath in all sorts of places throughout the home. 

The Hixson's crawl space was wet and humid causing a rotting in the support beams. Because of the rotting support beams, the interior floors began to sag pulling away from the interior walls. You guessed it, now the interior walls and, in some areas around windows, show signs of cracking. The Hixon's had Smart Jacks installed on the interior support beams to stabilize the sagging floor raising them and re-supporting the walls. The Hixon's have only fixed one part of the problem though. After conditioning the crawl space with Cleanspace liner, SilverGlo wall insulation and a dehumidifying unit, the Hixson's can be sure that their sagging floors and cracking wall problems are finished.

Smart Jacks and Cleanspace Beautify Home in Vancouver, WA

The Northwest is a beautiful place to live. The landscape is so diverse and green because of the year round heavy rain fall. Although these conditions are why our terrain is so beautiful, it can be harmful to your home and specifically the foundation. A Vancouver, Washington home has suffered from years of moisture problems causing the humidity and mold levels to rise, and the floors to sag due to rotting supports. To restore the value of the home, the foundation will need to be stabilized and the crawl space environment conditioned. 

To achieve the first goal, Smart Jack posts were installed and secured to the support beams under the house. These easy to install and adjust steel supports will not only stabilize the foundation from continuing to sag, but will also raise the floor up to eliminate the "bounce" in your step. To achieve the second goal of conditioning the crawl space environment a combination of products were installed; Cleanspace liner isolates the air from the Earth, SilverGlo wall insulation regulates air temperature reflecting warm air back into the home, insulating and heating at the same time, and a sump pump and dehumidifier to regulate the moisture and humidity levels.

the Rauch's are very happy with their new crawl space, all the while improving the comfortability for their family and increasing energy efficiency. A win-win all the way around.

Concrete Leveling for Slanting Slabs Around Pool Kalama, WA

    It's hard to imagine a better summer day than friends, family, BBQ and a pool party. Think about this. After the cement pool is poured and the water is filled, you can imagine how heavy a structure like that must weigh. Home and pool owners Darren and Adriane O. noticed a slanting of the slabs around their pool and wanted to level this issue without massive destruction around the pool area. It is almost summer after all, and they wanted to take advantage of their pool. After searching the internet, they discovered that TerraFirma could help them out.

    TerraFirma Concrete Leveling was the solution they discovered. What it is, is a light weight poly urethane with a high capacity and expansive properties. A penny sized hole is drilled in the sinking slab with the void underneath and the foam is pumped into the void. It expands, stabilizes the slab and with measurable lift. With next to no destruction and curing quickly, Darren and Adriane O. can enjoy their pool all summer long worry free.

Multi-Room Cleanspace Encapsulation Longview, WA

    Home owner Mike C. in Longview, Washington has been continuously adding on to his home for the past few years. At first for pleasure, a new media room, or home office; However, as his family grew he wanted to make sure that his add on rooms were up to code as far as health, insulation, cost effectivity and personal comfort. After seeing a TerraFirma ad on TV, he knew instantly he found a professional company that could help him with his home goals. Specifically for under the home in the crawl space.

    Kevin Miller, a System Design Specialist at TerraFirma, inspected Mike's crawl space and designed a perfect solution for three separate crawl space sections of his property. By completely encapsulating the area, Mike was able to achieve all of his home goals. After condition the crawl space environment with Cleanspace and a dehumidifier, Mike house now circulates healthier (mold free) air. By installing SilverGlo wall insulation around the interior perimeter, not only was Mike able to keep his home warmer but in doing so, achieved higher comfortability and saves money on heating bills.

    It was a simple 2 day project which required virtually zero destruction to the home. Mike now has an efficiently running home that him and his family can be comfortable in any day of the week.

Settling Home Addition Longview, WA

    For Longview, WA home owner Betty H., her addition in 1962 is causing her problems 50 years later. The addition is an 8' by 30' room and has settled almost 6" in the worst spots. This is significant and is a health hazard. Not just because of the unevenness to the house, but because of the structural integrity of the foundation has also been compromised allowing humid air, moisture and critters under the home. It is an unsafe and unhealthy environment. she saw a tv ad showing how TerraFirma could permanently stabilize and lift her foundation, so she called immediately to schedule a free inspection.

    As inspected by System Design Specialist Ryan Lahley, a 10 push pier and 4 Smart Jack system was designed to permanently stabilize Betty's add on foundation. 10 push piers were installed around the perimeter of the foundation. Once driven to proper depth and achieved adequate capacity, the weight of the home was fully resting on the piers which were anchored in sufficient load bearing soil.

    As for the interior settlement portions of her home, Smart jacks were installed under the load beams that had also began to sink. By re-supporting the load beams we eliminated the sagging and that "bounce" when walking through the room.

    With one system we were able to permanently stabilize Betty's foundation and re-support her interior settlement issues. She can be sure that her house won't be settling anymore.

Soil Washout Damages Back Patio in Woodland, WA

Jacquie W. noticed the back patio of her Woodland, WA home had settled and cracked and wasn’t sure how to fix it. After much research online, Jacquie called TerraFirma to answer all her questions and repair the concrete. 

System Design Specialist Manny Ancira came out to evaluate the back patio, discovering that the settlement and cracking were caused by soil washout. He took his notes to Casey Thomas and his crew to develop a plan. The concrete would need TerraFirma Concrete Leveling Solutions, including polyurethane foam and Nexus Pro, to lift, stabilize, and level the back patio. 

The crew went quickly to work, repairing the concrete within one day!


Settling Back Patio in Kelso, WA

Rob and Jill H. have lived in their Kelso, WA, home since 2001. They recently noticed that their back patio was cracking due to the downhill settlement. After watching a TerraFirma commercial on TV, Jill reached out for help.

System Design Specialist Jacob Iltis evaluated Rob and Jill’s home. He found that the concrete was stamped, and the control joints were cut into the 20x20 concrete pad. A few of these joints had separated due to the settlement, which was mainly on the north side of the concrete pad. As a result, the concrete had cracked. To solve this problem, Jacob suggested using TerraFirma's Concrete Leveling Solutions, including polyurethane foam and Nexus Pro, to lift the back patio. He then worked with Ken and his crew to develop a plan.

After finalizing the plan, Ken's crew lifted and stabilized Rob and Jill's back patio within one day!

Southwest Corner of Home Settling in Kalama, WA

Danielle W. noticed the southwest corner of her 2013 single-family home had settled in Kalama, WA. Not wanting the settling to get worse as she prepared to sell the house in a few years, she reached out to TerraFirma for help. 

System Design Specialist Jacob Iltis met with Danielle and evaluated the property. The home had a differential settlement of 1 inch from the high point on the east side to the low point on the southwest side. There were a few cracks in the foundation on the south side of the home as well, so Jacob recommended installing TerraFirma Push Piers to stabilize the south wall.

With Jacob’s recommendation, Roberto Burgos and his crew went to work, stabilizing Danielle’s house within one day! 


Serving the following Cowlitz County, WA zip codes
Longview 98632, Kelso 98626, Woodland 98674, Silverlake 98645, Toutle 98649, Kalama 98625, Castle Rock 98611, Ariel 98603, Ryderwood 98581, Cougar 98616, Carrolls 98609
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