Contact Us For
A Free Estimate!
Testimonials From Coos Bay
Jeremy and his crew did a great job! Clean up was satisfactory and we are happy with over all results of the completed work.
Testimonial by Knutson J. from Coos Bay, OR
We are so comfortable with our systems specialist and the plan the he put together for us. Ryan knew what he was talking about, that's for sure.
Testimonial by Chuck M. from Coos Bay, OR
I received great care from all your staff.
Testimonial by Peggy C. from Coos Bay, OR
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

Crawl Space Repair & Encapsulation
Crawl Space Moisture Barrier System
Crawl Space Structural Repairs
Crawl Space Access Wells
Crawl Space Sump Pumps
Triplesafe Sump Pump
SuperSump Sump Pump
UltraSump 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 Alternatives
NexusPro Cracked Concrete Repair

Earthquake Retrofitting

Free Estimates & Inspections

Croos Bay OR's Basement Experts

Your rep gave a detailed estimate & complete accurate estimate of cost!...
Happy Customers Surrounding Coos Bay, OR
Work Requests

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

TerraFirma is Coos Bay's trusted contractor for basement & foundation work. For the past decade we have been using state-of-the-art products to protect your home. We are the authorized basement systems contractor in Coos Bay.

Basement Waterproofing & Crawl Space Repair

To remove any water that could damage your home we install an interior drainage system. The drain connects to a sump pump to safely pump the water out and away from your home. The system comes with a transferable lifetime warranty.

If you need to encapsulate your crawl space we use CleanSpace vapor barrier and insulation to seal the area. Add a sump pump and dehumidifier and your home is protected from moisture, mold and rot coming up from the crawl space. 

Foundation Repair

Our team of foundation specialists will set up a time to come and inspect your home. We can fix uneven floors, bowing falls, cracked walls and more. The systems comes with a 25-year warranty. 

Concrete Repair

Sunken concrete slabs out in the driveway or sidewalk are an issue. That is why we use a polyurethane foam for concrete leveling, which is injected underneath the cement to raise the slab up. TerraFirma concrete leveling provides a superior option to traditional mudjacking methods. We also offer NexusPro cracked concrete repair and ResurfacePro concrete resurfacing to further stabilize and better your slabs!

Get a Free Estimate

Job Stories From Coos Bay, OR
SuperSump Saves Coos Bay, OR Home from Water Damage

    Local Coos Bay, OR resident Pamela H. noticed that there was water leaking into her basement through the floor.  She started looking for a company that could come and help her. While watching television she saw an ad for TerraFirma Foundation Systems and decided to give them a call.

    A few days later Casey Moore came out to her property. He suggested that they install a couple products that could help. He recommended that they install a SuperSump Sump Pump.  This is a 1/3 horsepower cast-iron sump pump that is capable of pumping out 2,500 gallons of water per hour. Also it was recommended that they install a WaterGuard System. The system is installed along the perimeter of the basement to catch incoming water seepage and direct it towards the sump pump.

    With her basement protected by the SuperSump and WaterGuard, Pamela can use her basement with no worry that any of her belongings will be ruined by water.

Foundation Settlement Issue in Coos Bay, OR

    Chris I. is a property manager in Coos Bay, OR. While visiting this property he noticed that there were cracks in the exterior walls and the doors were not opening properly. He started asking around to his friends. One of them referred him to TerraFirma Foundation Systems.

    Within a few days of contacting the office they sent out Ryan Thomas to inspect the property. He recommended that they install Push Piers in the foundation.  These piers can be installed inside or outside of the foundation walls and will not only stop settlement but can lift the foundation back to its original position. This will close any cracks and improve the function of the door.

    Now that the Push Piers have been installed, the residents of the home can continue living in it with no worry of further settlement.

Work Requests From Coos Bay, OR
Vicinity of in Coos Bay
A corner of our house is sinking.
Vicinity of OCEAN BLVD SE in Coos Bay
We would like to receive a current inspection and repairs estimate.
Vicinity of Juniper Ave in Coos Bay
House built in 1976 cement block foundation. concerned about earhquake.
Vicinity of Beacon Ln in Coos Bay
House on top of garage that has a cracked slab with water coming in.
Vicinity of in Coos Bay
My house was originally built in 1918, the front half anyway. Sometime in the 1960's the back half was added on. It is a two story house. The finished basement is the first story. There are no records of the construction that I can find but I'd like to know if it is up to code or if it needs retrofitting so that I can look into earthquake insurance. The house sits on a terraced hillside with a house above and below in close proximity.
Vicinity of Shinglehouse Rd. in Coos Bay
I have a two car garage and the back half of it is sinking at about a 3 or 4° level
Vicinity of in Coos Bay
Need to repair foundation
Vicinity of in Coos Bay
Three story home built in 1928 with added on wing needs earthquake retrofit. we would like a consultation and estimate. Additional information: Main Area of Concern: Other
Vicinity of Juniper Ave in Coos Bay
Vicinity of Robertson in Coos Bay
I am wondering if my foundation under my garage is in need of support? Additional information: Main Area of Concern: Other
Vicinity of Old Sawmill Rd in Coos Bay
CRACKED DRIVEWAY WHICH HAS SETTLED IN SOME AREAS Additional information: Main Area of Concern: Other
Vicinity of Hedge Ln in Coos Bay
Corner of my foundation sunk over time, need to get it raised back up. Thanks
Vicinity of Cape Arago Hwy in Coos Bay
Observation building at Shore Acres State Park is settling. Cracks in block walls and foundation. Additional information: Main Area of Concern: Foundation
Vicinity of CAPE ARAGO HWY in Coos Bay
Major water in crawl space
Vicinity of Ross Inlet Road in Coos Bay
I have a crawl space that needs help and some of the insulation under the house put up.It also has water in the winter time and I do not know if a sump pump or drainage system would be best.
Vicinity of Canyon Terrace in Coos Bay
Lower patio which supports the upper outdoor deck has moved (tilted down slope) and is causing support issues for upper deck. Patio needs leveling/polyfill/sand jacking etc. Additional information: How did you hear about us: Internet Main Area of Concern: Foundation
Vicinity of in Coos Bay
Beach sand concrete, old home. Additional information: How did you hear about us: Other Main Area of Concern: Basement
Vicinity of Cape Arago Hwy in Coos Bay
I have old sagging insulation under my house to remove, and a decomposing ground cover under my approx. 1800 sq ft home. I need a better quality insulation (R25?)that once again covers my floors in the 30" high crawl space, and is secured. Also, a new ground cover. (6 mil?) Also, check the metal duct work to see if it needs to be taped on the seams. Can you give me a rough estimate of cost?
Vicinity of N Dean St in Coos Bay
Basement needs proper moisture barrier and sump pump, as well as mold issue. HELP!
Vicinity of Bramble Lane in Coos Bay
Very wet soil conditions. House was built in 1942 and is only on pier/post with areas of settling. I need to level and stablize the house and install perimeter foundation for insurance coverage. Area is very wet from surrounding marsh.