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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
Concrete Lifting

Concrete Repair
Concrete Driveway Repair
Concrete Pool Deck Repair
Concrete Walkway Repair
Concrete Patio Repair
Concrete Leveling & Lifting
Mudjacking & Slab Jacking Alternatives
NexusPro Cracked Concrete Repair
ResurfacePro™ Concrete Resurfacing

Earthquake Retrofitting

Free Estimates & Inspections

Company Awards
HomeAdvisor - Best Of 2020 Award
TerraFirma was proud to have received the 2020 HomeAdvisor 'Best Of' Award. This award recognizes only the top percent of... [Read more]
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]
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
Vicinity of Albert Circle in Lake Oswego
Uneven walkway
Vicinity of Firwood Rd in Lake Oswego
I would like an estimate for crawl space encapsulation.
Vicinity of McVey Ave in Lake Oswego
We are interested in having some of our foundation repaired and learning more about crawlspace waterproofing. Crack leveling also needed for front and back porch.
Vicinity of Lake Grove Ave. in Lake Oswego
Water in basement and white mold on walls.
Vicinity of Pine Street in Lake Oswego
Our garage floor and adjacent driveway have sunk up to 3 inches on one side. We'd love to get this fixed without having to replace it.
Vicinity of Bonita Road in Lake Oswego
My Crawl Space is full of debris The vapor barrier is all pulled away and needs to be refinished Our outside vents need to be reattached and potential holes dug to allow for run off Would like a quote, house is ranch style.
Vicinity of Adrian Ct. in Lake Oswego
At the front of our home, we have a "mud door" entrance with a slab and brick stairs leading up to the door. The slab and stairs are sinking slightly (1-3% off level). We would like to get this leveled up.
Vicinity of Bay Creek Drive in Lake Oswego
Need a 10 x 10 patio slab lifted (approx. 1.5 - 2 inches) where it meets the house foundation.
Vicinity of South Shore Blvd in Lake Oswego
Concrete pier blocks under our house are tilted, and one is standing on loose rocks. We need the foundation repaired immediately within 10 days. Please call me ASAP. Home is in LO. We are the new owners.
Vicinity of Boca Ratan Dr in Lake Oswego
Selling home and I want it to look good. After the pressure wash before painting, I noticed some cracks.
Vicinity of Oak Knoll Ct in Lake Oswego
I am purchasing a home that has a daylight basement. There is evidence of water intrusion (flooring is stained and buckled) along the south side of the room where the foundation butts against earth. I am looking for information and cost on how to correct the problem.
Vicinity of Upper Drive in Lake Oswego
Earthquake retrofit
Vicinity of in Lake Oswego
Known foundation issues from purchase inspection
Vicinity of Blue Heron Court in Lake Oswego
Have a Interior sheet rock crack mid span in the house.
Vicinity of Wren Street in Lake Oswego
Concerned about house shifting: Ceiling cracks in Living room & garage. Notice a a distinctive crack on garage floor to outside wall - when we were cleaning and prepping the garage floor, we used the hose to flush out the floor - it ran to the outside wall and disappeared?
Vicinity of 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
Vicinity of Cedar St in Lake Oswego
In the process of selling home, inspection came back with foundation issues.
Vicinity of Overlook Drive in Lake Oswego
My house is out of level by about 2.5" I would like to get it back to level
Vicinity of Greenridge Court in Lake Oswego
Moisture and water in crawl space. Also rodents.
Vicinity of 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.
Serving the following Lake Oswego, OR zip codes
97034, 97035, 97034, 97035