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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 Lake Oswego, OR

The presentation given by your representative was above expectations. At first-looks like 1st class company - and is!...
Happy Customers Surrounding Lake Oswego, OR
Work Requests

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Reviews From Lake Oswego
Testimonials From Lake Oswego
Your representative was very informative and knowledgeable!
Testimonial by Parkwood Investment LLC from Lake Oswego, OR
The crew was fast, professional and knew what they were doing.
Testimonial by Len P. from Lake Oswego, OR
This is the only thorough, long lasting solution we found.
Testimonial by Dorothy D. from Lake Oswego, OR

Responsible basement waterproofing, foundation repair, crawl space repair company serving Lake Oswego, 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 Lake Oswego, OR.

Services we offer in Lake Oswego:

  • Wet/flooded basement waterproofing solutions.
  • MudJacking & Concrete Leveling & Lifting
  • Lifetime warranty on all perimeter waterproofing systems.
  • Foundation Repair 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
Job Stories From Lake Oswego, OR
Cracked Retaining Wall Fixed with Geo-Lock Anchors

    A new restaurant is opening in Lake Oswego and the new owner wanted to make sure not only was the food excellent but the ambiance, feel and venue was as fantastic as the food. This included repairing a retaining wall along the side of the building that, over the years, has began to lean and now rests at a 15 degree angle. Bryce B. wanted to straighten the wall to look better, but also to restore the structural aid it provided. After asking around to his friends and family he found TerraFirma and scheduled a free inspection.

    To provide lateral stability, 3 Geo-Lock Anchors were installed. Anchor plates are secured on the outside of the wall, and a fews feet back into the soil. They are connected with a rod. The plates act as an anchor and the wall is literally cranked back upright. Since the plates are secured in place, the wall is the only thing that can moves and is eventually straightened. With the use of 3 Geo-Lock Anchors, Bryce was able achieve both of his goals. Ready for grand opening late summer!

McGinnis Finding the Right Cleanspace Installer Lake Oswego, OR

    For home improvement projects there are tens and hundreds of different solutions out there; However, There are two key pieces to a successful home improvement or repair project. 1, Finding an efficient, durable, long lasting solution. 2, Finding a qualified installer of that system. Lake Oswego, OR home owners Amy & Shane M. had their crawl space encapsulated a few years back by a different company, but as of late are noticing moldy smells throughout the home. After seeing a TerraFirma ad in Portland Monthly, they called the real experts for finally solve their crawl space issues.

    After inspection by Josh Anderson, they had the right product and solution under their home, but they failed to find a qualified installer. Our improvements included a drainage system collecting ALL the water entering the area, and closing off the vents. By closing off the vents, and removing all the water Amy and Shane now have 100% control over the air underneath their home.

    Not all solutions are created equal, nor are they installed equally. Do your research and make sure you are using the real experts in the industry.

Complete Foundation Failure Revived Lake Oswego, OR

    There is a problem with home projects. Typically, they don't fix themselves. And, Typically they get worse over time especially if not addressed. Lake Oswego, OR, home owners Jim and Glenda D. have a worst case scenario. Their crawl space was humid and wet causing structural damage and mold development. Because of the pooling water the  foundation settled vertically, horizontally and torsionally. After searching for options to save their home before it went flushing down the hill, he found TerraFirma who could help with all of these issues.

    The services we performed on Jim and Glenda's home were as follows. A Cleanspace crawl space encapsulating system that would stop groundwater seepage, separate the cold earth from the house, condition the air and close off crawl space vents. These products, working together, keep air warmer, control all water issues in the crawl space, save money on heating bills and cleanse the air. The root of the problem was solved. Next we solved the side effects, the settling foundation. to stabilize vertical settlement, push piers were installed along the back side of the home on the downside of the hill. these piers were secured to the foundation footing and anchored into load bearing soil below. To stabilize horizontal and torsional settlement and stress, helical anchors and wall plates were installed. 10 to be exact. These anchors grabbed soil working against the direction of horizontal settlement to halt all movement.

    This project took Jim and Glenda 2 years to get city approval and schedule a date of installation. Luckily we got there in time before the entire foundation was sacrificed. Jim and Glenda look forward to enjoying their dream home until they are old a gray and don't have to worry about it sliding down the hill anymore.

Work Requests From Lake Oswego, OR
Fernwood Drive in Lake Oswego
Hi, I need to have the foundation evaluated of a house that is on a hill and water has been draining downward into the house for many years. Thanks, Che
Cedar St in Lake Oswego
In the process of selling home, inspection came back with foundation issues.
Overlook Drive in Lake Oswego
My house is out of level by about 2.5" I would like to get it back to level
Greenridge Court in Lake Oswego
Moisture and water in crawl space. Also rodents.
Hidalgo St. in Lake Oswego
Our driveway has "settled" creating a gap. We need to know if we can just patch it or if there is a more serious underlying issue.
Ridgecrest in Lake Oswego
We are doing a major remodel on a house, and I want a heavy duty lining put in the crawl space, and perhaps a sump pump and dehumidifier
Fir Ridge Road in Lake Oswego
Interested in estimate re: crawl space
Botticelli St. in Lake Oswego
I have a slow leak of water in my garage. It is coming up through the concrete.
in Lake Oswego
Estimate for earthquake bolting of foundation, foundation appears to be in good shape house built in 1962 it is a level lot
Boones Ferry Road in Lake Oswego
We have a foul smell coming from the vents under our main floor. We're concerned about the ducts and/or what is in the crawl space.
Amber Place in Lake Oswego
I have a home with a settling patio.
Lake Garden Ct. in Lake Oswego
We have some settlement, cracking and uneven floors in our 1963 Lake Oswego home. It was recommended to us that we contact a geotechnical engineer to get an evaluation to identify and resolve any soil/drainage/foundation issues we could have on our property before moving forward with the necessary repairs and future renovations we had hoped to complete. Is this a service that your firm can provide? Any information you can give us regarding evaluation costs and lead times would be appreciated. Thank you for your time. Additional information: Main Area of Concern: Foundation
in Lake Oswego
Retaining area around a basement waste ejector pump collapsed. Ejector pump in the crawl space adjacent to basement foundation. Oh, and pump failed. Need to get retaining area solution for pump replacement and future servicing. Challenging site area. Additional information: Main Area of Concern: Crawl Space
Preakness Court in Lake Oswego
Concrete slab foundation with possible water seepage 40 year old home, would like inspection and problem identified if possible.
Stampher in Lake Oswego
Our contractor pointed out an area of concern in the crawl space and recommended that we get it checked. Additional information: Main Area of Concern: Crawl Space
Greenridge Ct in Lake Oswego
Standing water in crawl space needs to be eliminated or redirected. We need to get an idea of what needs to be done & how much it will cost. Additional information: Main Area of Concern: Crawl Space
Northview Ct in Lake Oswego
Sinking concrete walkway & driveway. Additional information: How did you hear about us: Internet Main Area of Concern: Other
Royal Oaks Dr. in Lake Oswego
We have a moisture and a little water in our crawlspace. We are looking at options to reduce this and or eliminate the issue. My wife and I would like to see what our options are and get a cost estimate on repairs or long term fix. Our crawlspace is approx. 1500 sqft, vented. I keep the vents closed year round.
Centerwood St in Lake Oswego
I have an uneven concrete slab as part of my walkway to my front door. Additional information: How did you hear about us: Internet Main Area of Concern: Foundation
Ivy CT in Lake Oswego
I have small foundation leak in finished basement.
Serving the following Lake Oswego, OR zip codes
97034, 97035, 97034, 97035