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Products & Services

Basement Waterproofing
Waterproof Wall Products
DryTrak Basement Water Control System
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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Basement Waterproofing Services in Coos Bay, OR

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

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Reviews From Coos Bay
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...
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...
Testimonial by Chuck M. from Coos Bay, OR
I received great care from all your staff.
Testimonial by Peggy C. from Coos Bay, OR

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 system 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 to further stabilize and better your slabs!

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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.

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