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Products & Services

Radon Mitigation

Radon Testing

Radon Detection

Radon Abatement

Radon Mitigation System

Basement Repair Services & Products

WaterGuard Interior System

DryTrak Drainage Channel

TrenchDrain Drain Grate

IceGuard Discharge Line

FlexiSpan Wall Crack Repair

Polyurethane Crack Sealing

WellDuct Window Drainage

BrightWall Waterproof Panels

ThermalDry Wall Barrier

Basement To Beautiful Pre-finishing Wall Insulation Panels

Drain Tile Installation

SuperSump Pump System

TripleSafe Pumping System

UltraSump Battery Back Up

Sanidry Dehumidifier

Crawl Space Repair Services & Products

CleanSpace Encapsulation Vapor Barriers And Liners

Turtl Access Hatch

EverLast Crawl Space Doors

Sanidry Csb Dehumidifier

SmartDrain Water Drainage

SilverGlo Wall Insulation

TerraBlock Floor Insulation

SmartSump Sump Pump

Crawl-o-Sphere Crawl Space Fan

WallCap Block Wall Sealer

SmartVent Flood Vents

Foundation Repair Services & Products

Push Pier Underpinning For Settlement, Foundation Leveling, Sinking Foundation Repair

Geo-lock Wall Anchors

Geo-lock Helical Anchors

PowerBrace Bowed Wall Repair

CarbonArmor Fiber Wall Repair

SmartJack Crawl Space Support

Slab Pier Repair

PolyLevel Concrete Lifting

EZ Post Deck Repair

Shotcrete Wall Restoration

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 Washington County, OR

For a FREE no-obligation basement waterproofing, foundation repair, radon mitigation, crawl space repair estimate in Washington County, OR, please fill out the form to the right and TerraFirma will contact you shortly.

Happy Customers Surrounding Washington County, OR

Testimonials

Reviews

Work Requests

Click the icons to see what our customers had to say.

Reviews from our customers in Washington County, OR

5.0/5
Jason C. Rodlun Ct

Jon Keas and his crew were very polite, helpful and informative. Thanks guys

5.0/5
Jason C. Rodlun Ct

5.0/5
Melinda E. Willamina

4.8/5
John

We did encounter one major issue, but your quickness in handling the problem was excellent. All issues were resolved according to our satisfaction. Thank You!!! We recommend Josh of install crew to be groomed for a foreman job! Very impressed with that young man!

5.0/5
Richard H. SE Hollyhock

Drew, our installation crew chief, did an outstanding job!

5.0/5
Susan S. SE Lexington Dr.

I chose Terrafirma because of the expertise shown by the salesman, followed up by a great crew on site.

4.8/5
Mike F. SW Albertson Road

Our home is on a slope in the woods, and over time we noted significant signs of settlement - cracks in drywall and ceiling, the deck sinking, settlement of walkways and front step, cracks in foundation. Josh from TerraFirma came out and did a very thorough (at no cost to us) evaluation of the property, identifying the issues relating to the soil and location, and probably how the site was prepped originally, as well as problems related to water drainage down our driveway and dumping into the soil next to the foundation. He recommended placing push-piers to support and lift the foundation along 3 sides of the house, and adjustable jacks in certain areas of the crawlspace to lift some of the floors that were sagging. He also recommended having trench drains placed across the driveway in two places to eliminate the water draining down to the house (to be performed by different contractor). The sunken slabs/steps/sidewalks would be addressed by "Polylevel" injection under the slabs (subcontractor to TerraFirma). We also decided to have our crawlspace encapsulated at the same time. This was actually our idea to ask about that. Josh was very professional and answered all questions, and at no time did he come across as high pressure or with a sales pitch. He simply presented us with possible solutions to the problems.

In early November, the work began, taking about 2 weeks. Drew, the installation foreman, and his crew were great. Very cheerful, professional and courteous, and hardworking, despite having to work in absolutely miserable conditions of cold and rain. Drew was always available to answer my questions and address any concerns, and went the extra mile to do little things to tie up loose ends in the project rather than leaving things for us to have to deal with afterward.

There was a problem early on when cracks developed in the foundation where at least half the piers were placed, owing to there not having been any rebar reinforcement of the foundation (rebar not required code until after about '98) when it had been poured. Drew indicated that this was not uncommon and that the piers would still do the job. However, many of the cracks were along one edge of the brackets or next to them, where shear along the cracks might be expected during lifting or support. There was also one pier that was very tilted/angled where it contacted the foundation, that mechanically appeared unsound in that position. I called for a time-out and contacted the engineer, Rob, and he and the production manager Keith came out to assess the situation. This resulted in Rob revising the plans to include some additional piers and bolting steel plates on either side of a number of the cracks that were in question, to mitigate the problem, before the foundation was lifted. So they were very responsive to the concerns I raised, and did what was necessary to address the issues. And I should also point out that we were NOT charged anything extra for the additional work performed - only the amount agreed upon in the original contract. There is a small part of me that wonders to what degree the cracks, etc would have been addressed had I not brought up the issue, but I'd like to give TerraFirma and the engineering company the benefit of the doubt and assume that the outcome would be the same (i.e., that the cracks would have been plated, etc). I was slightly disappointed that the cracks in the drywall and ceiling didn't seem to improve much or at all after the foundation was leveled, and I still have some minor concerns about support along one corner, but overall we're very pleased with the job. Drew grouted all the cracks, and repaired all the storm drain pipes, even including a pipe for the irrigation system that I had assumed I would have to fix myself. Another feature to point out that helped make our decision to forge ahead with the project was the 75 year transferable warranty, and the fact that anytime within the first 5 years, you can have TerraFirma come back out to reassess the leveling at no charge.

Another bright point was the Polylevel job performed by Geoff - he and his asst were very accommodating in scheduling, and did a great job of lifting and leveling the sidewalks, slabs and step.

TerraFirma really does seem to be perfectly suited to doing this sort of work on residential homes with difficult/limited access to the foundation, and we certainly would recommend them to anyone with foundation issues. Next summer, we plan on replacing our old deck, which continues and will continue to sink for all the same reasons that the foundation had been sinking. But this time we will support the deck with helical piers, and we are planning to have TerraFirma place the piers.

5.0/5
Howard E. NE Marina Ct.

Thank You!

4.0/5
Joe V.

I will never go with anyone else but Terra Firma. My crawl space looks great and my house and family are healthy.

3.8/5
Toni D.

I would have preferred a one total price for a single phase for the stabilization of my home. Not pillars inside and then later the outside repair. Cost was very high. More reasonable price would be preferred.

5.0/5
Vern S. NW Meadowridge Dr

Excellent and exceptional work from the whole team.

4.2/5
Steven S. SW Butner Rd

4.2/5
Lindsay P. SW Colyer Way

Terra Firma recently did a crawl space drainage system for my home. Gage and his crew showed up right on time, did the job quickly, and cleaned up afterwords. Gage explained how everything works and answered all my questions to my satisfaction. I will definitely recommend Terra Firma.

4.8/5
Ruth A. SW Brooks Bend Ln.

5.0/5
Carol B.

Terra Firma took a different approach, which while more expensive, was more complete.

5.0/5
Cheryl Tigard, OR

Thank you again.

4.2/5
Greg M. SW Viewmount Court

5.0/5
Grant K. SW Viewmont Drive

Our job had some unforeseen complications because of the way the foundation was constructed. The Terra Firma team has been good about coming back several times to address problem areas.

The only downside is that this foundation construction problem was noticed during the initial installation, but nothing was mentioned at the time and the install proceeded as planned. Very soon after, we had many water leaks appear because of that problem. We know it was an unusual circumstance, but it was a little concerning that it wasn't recognized as an issue during the installation and nothing was mentioned. Homeowners like us rely on your knowledge and problem-solving ability, so this was a bit of a misstep in our opinion. But, the company has been good about taking care of the problem since, so we still feel very positive about the experience.

Overall, everyone we have encountered either in person or over the phone has been great. It seems like a company that is well run and has it's act together.

5.0/5
Jaden L. Portland, OR

Outstanding job estimate was fast and professional crew showed up on time worked there tails off and got it done right they left the work sure that is my house very clean and tidy above and beyond other contractors that I have felt with the crews were very professional and knowledgeable I would absolutely recommend this company to any one in need of there help thank u.

4.8/5
Darry L. SW Raleighwood Lane

Very smoothly handled process. Messy, dirty work but we would never have known it from the care the crews took to keep the adjacent basement site clean and useable while they were mucking about in the crawl space!

5.0/5
Monica K.

I just want to say again how much we appreciated the work that was done here. The crew worked so hard and such long hours every day and were always friendly and respectful to me. The excavations were done carefully and the yard/foundation areas were completely cleaned up when the job was done. Any questions or concerns I had during this process were quickly answered and I was always shown what was happening as the work proceeded.

I wanted all the guys who worked here to know how much their time and efforts were appreciated. Thank them for me.

-Robin and Monica.

5.0/5
Bob A. SW Riverwood Lane

We are interested in adding a Smart Jack Post under the washer and dryer flooring in June when the soil under the clean space firms. We understand that TerraFirma Foundation Repair will contact us in June to follow up on this. Thank you.

5.0/5
Terri A. SW Apache Dr

Responsible basement waterproofing, foundation repair, radon mitigation, crawl space repair company serving Washington County, Oregon

We not only adhere to the highest industry standards, we strive to be the industry leader in the home improvement related services we provide. We also use state-of-the-art products and technology which are designed to fix your home. We are the authorized Basement Systems dealer in Washington County, OR.

Services we offer in Washington County:

Wet/flooded basement waterproofing solutions.
Lifetime warranty on all perimeter waterproofing systems.
Foundation and structural repair solutions.
25-year warranty against manufacturing defects on foundation products.
Crawl space sealing with CleanSpace vapor barrier.
25-year warranty on crawl space encapsulation systems.
Financing Available
FREE written estimates and inspections, and fast installation

Photo Galleries From Washington County

With how tall and open this Portland crawl space was, it was important to encapsulate the crawl space with our VaporLoc Elite barrier, as well install a MoistureLoc dehumidifier to prevent future mold.

Our System Design Specialist, Erik Keyes inspected the crawl space, and he concluded that the crawl space would need VaporLoc Elite, one SmartJack, A TripleSafe Sump Pump, and two MoistureLoc dehumidifiers to prevent future mold. With a plan set, Nick Maszy and his production team came to the home...

There was, fortunately, no mold in the crawl space, but there were support posts that were suffering from water damage.

Serving the following Washington County, OR zip codes

Portland 97229, Portland 97223, Portland 97281, Portland 97224, Portland 97291, Portland 97225, Portland 97298, Hillsboro 97123, Hillsboro 97124, Beaverton 97003, Beaverton 97008, Beaverton 97077, Beaverton 97005, Beaverton 97078, Beaverton 97006, Beaverton 97075, Beaverton 97007, Beaverton 97076, Tualatin 97062, Forest Grove 97116, Sherwood 97140, Cornelius 97113, North Plains 97133, Banks 97106, Gaston 97119, Gales Creek 97117, Buxton 97109, Timber 97144, Manning 97125

CCB# 173547
WA: TERRAFR931LH

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