About TerraFirma

We cover all of Oregon and Southwest Washington.

Fix it once. Fix it with confidence. Fix it with TerraFirma

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Founded in 2005, TerraFirma has been a partner in keeping your home safe and sound structurally for over a decade. The foundation experts have gained a reputation of providing all customers with the best quality of service. Each employee is extensively trained and certified in foundation repair and basement waterproofing, so you can rest assured knowing you are in good hands.

At TerraFirma, we understand that foundation cracks, wet crawlspaces, and musty basements are stressful. We offer a free onsite estimate for all work that you may need to be completed, and we will work with you to customize a solution for your home.

TerraFirma stands by our promise of solving your foundation problem and basement needs in the most efficient manner.

How much of the air in your home comes from your crawl space?

Thursday, October 11th, 2018 by CJ Garcia


 How much of the air you breathe in your home comes from your crawl space? - Image 1

Have you ever considered what’s in the air you breathe in your home? While it’s weird to think about, but for homeowners in the Pacific Northwest, it should be top of mind.

Approximately 50% of air on the first floor of your home comes from your crawl space. That means any mold, unwanted odors, or whatever stray vermin may bring in to your crawl space is seeping into the air and parts of your home where your family spends quality time together.

How your crawl space affects your home

When warm air rises and leaks out of the upper levels of your home, new air replaces what has escaped, and that air comes from the lowest parts of a house.

If your crawl space has substantial water or if outdoor air comes in through vents, then your crawl space is prone to high humidity which will inevitably travel through the upper levels of your home. Mold growth also typically starts in your crawl space.

In short, your crawl space impacts the amount of humidity, condensation, and mold that could be seeping into your home.

How to solve your crawl space problems

Before you can resolve any problems with your air quality, you need to know if you have an issue! The only way to know what’s happening in your crawl space is to venture down there and check it out for yourself. Understandably, not many homeowners want to investigate a dirty, smelly crawl space, and if they do, they might not know what to look for.

Fortunately, you can gain peace of mind about your crawl space and home air quality with the help of TerraFirma. By setting up an appointment, an experienced and local System Design Specialist will come to your home and provide you with a free inspection of your crawl space. On that same day, you’ll receive a report from the System Design Specialist that will detail what they discovered in your crawl space, and what they recommend you should do to help improve your home’s air quality.


Schedule your free inspection with TerraFirma today!

our service area

We serve the following areas

  • Adams
  • Adrian
  • Arock
  • Athena
  • Baker City
  • Bates
  • Boardman
  • Bridgeport
  • Brogan
  • Burns
  • Canyon City
  • Cove
  • Crane
  • Dayville
  • Diamond
  • Drewsey
  • Durkee
  • Echo
  • Elgin
  • Enterprise
  • Fields
  • Frenchglen
  • Haines
  • Halfway
  • Harper
  • Helix
  • Heppner
  • Hereford
  • Hermiston
  • Hines
  • Huntington
  • Imbler
  • Imnaha
  • Ione
  • Ironside
  • Irrigon
  • Jamieson
  • John Day
  • Jordan Valley
  • Joseph
  • Juntura
  • Kimberly
  • La Grande
  • Lexington
  • Long Creek
  • Lostine
  • Meacham
  • Milton Freewater
  • Monument
  • Mount Vernon
  • North Powder
  • Nyssa
  • Ontario
  • Oxbow
  • Paulina
  • Pendleton
  • Pilot Rock
  • Prairie City
  • Princeton
  • Richland
  • Riley
  • Riverside
  • Seneca
  • Spray
  • Stanfield
  • Summerville
  • Sumpter
  • Ukiah
  • Umatilla
  • Union
  • Unity
  • Vale
  • Wallowa
  • Westfall
  • Weston
Our Locations:

TerraFirma Foundation Systems
761 NE Garden Valley Blvd.
Roseburg, OR 97470
1-541-204-4660


TerraFirma Foundation Systems
10111 S Tacoma Way Suite D5
Tacoma, WA 98499
1-253-777-0712


TerraFirma Foundation Systems
7910 SW Hunziker St
Portland, OR 97223
1-541-229-4049
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