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POOR AIR QUALITY

Humidity and condensation in a crawl space are a recipe for disaster. Excess moisture leads to mold growth, wood rot, and foul odors, causing issues for your home’s health, air quality, and value.

After removing any organic materials, making sure your waterproofing system is working correctly, and installing vent covers, you should still consider other airborne hazards that fortunately can be prevented with the use of a dehumidifier.

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Crawl Space Evaluation

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Schedule your free
Crawl Space Evaluation

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TERRAFIRMA IN ACTION

TerraFirma can repair your crawl space, leaving your home with cleaner, healthier air. Read on about our crawl space work and tips below.

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crawl spaces
repaired

Don’t take our word for it – see what our clients have to say.
From Roseburg to Eugene, Portland to Seattle, our Foundation Repair work speaks for itself

Sean G.
Major kudos to Terra Firma for the excellent work they did in my crawlspace. Props to Jonathan, Rom, Logan and Daniel for their great attitudes and professionalism. I definitely recommend this company.
Brian S.
Quinten, the service technician, did an amazing job of servicing the pumps and the dehumidifier, he thoroughly inspected the encapsulation system as well.
He is very knowledgeable about the whole system and answered my questions.
He gave some options for 'shipshape' warning system as well as 'Aspen Air 'purifier' both of which I intend to move forward with.
Your company is fortunate to have hired this quality of personnel.
I am equally satisfied with the original encapsulation crew.
Bill D.
We had Tyler from TerraFirma come out to bid fixing a standing water issue in our crawlspace. He was thorough (crawled the entire crawlspace), knowledgeable and responsive to questions. As a real estate agent having access to good contractors is vital, and his professionalism has placed TerraFirma solidly on our short list.
Carol F.
We had a complete encapsulation of our crawl space and sump pump and humidifier system installed. The young men who did the work were very professional. Antonio was the project manager and he was fantastic. Answered questions, explained the process, and made sure we were ok with what they were doing. They showed up at the time designated and called if they would be late. Communication was very good. Shout out to his helpers, Daniel, Jesse, and Kameron. At the end of the project they cleaned up the workspace and made sure things were left like it was before project. Thanks guys.
Gavin H.
I was referred to John from Terra Firma when I was looking to have our foundation inspected. John was very friendly and knowledgable and came out to our house to measure and inspect everything. In the end he was able to put our mind at ease and did a great job of explaining different scenarios and what he was looking for.

John even inspected the crawlspace while he was out and provided great feedback there as well. Overall we got a lot of good information and never felt as though we were being pushed into unnecessary services.

I will certainly be reaching out to Terra Firma for any future needs!
Adam D.
Travis and his crew were absolutely outstanding. They were very friendly, clean and neat during the process. They informed us of a leak that we had no idea about. Saving us costly damage, we truly appreciate it.
I had to go in the crawlspace since they completed the job. Absolutely amazing! Prior to them completing the job, whenever I had to go under, I was 50% sure something was going to jump out and kill me. Now, I feel I can easily camp out there with confidence.
Thanks guys, Amazing!! Money well spent.
Wish you all the best, for all your hard work.
Steve G.
Both crew's were on time. The crawlspace crew put down plastic from the front door to the crawlspace entrance in a bedroom. Work was completed on time, our closet doors reattached and the areas they worked in or went through left clean and tidy. The sidewalk crew completed their work in a day and even patched a crack we had forgotten to mention to the estimator. If TerraFirma also did crawlspace insulation, that would have been great, but I had to find another company for the insulation.
Kim G.
The Terra Firma team of Luis Juarez, Jose V., and Jorge D. were very dedicated and thorough in the crawl space encapsulation project at our home. They worked long hours to get the project done well and on time- as promised.
Tyler S.
Inspector Elijah was on time when he said he was going to be there was very prompt and personable. I feel like did a very thorough inspection of my crawlspace.
Ricky T.
Sam was able to provide an excellent inspection and honest report of my crawlspace waterproofing needs. Didn’t feel rushed or pressured. Was able to educate me to better understand the issues and risks. Thank you so much Sam

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Homeowner FAQs

Crawl space insulation vs encapsulation – which is better?

Crawl space insulation is typically ill-advised on its own. When insulation gets damp or wet, it stays wet. Dampness and mold that is able to grow in your crawlspace will move throughout your home. We recommend a setup that includes a double-sealed vapor barrier as well as a dehumidifier and sufficient drainage system.

My concrete seems to have moved up during the winter months, is this a problem?

If your concrete has shifted up during the winter months, it is most likely heaved from the frozen dirt below the concrete. This is normal, and usually the concrete will return to normal once the ground thaws. If it doesn’t return to its normal position in the spring, you may want to have one of our experts take a look to determine if a permanent solution is necessary.

What causes a floor joist to sag?

Excess moisture in floor joist, overspanned joist supports, and excess load above joist can all cause joists to sag.

Can you repair cracked concrete after going through concrete leveling?

Yes. In fact, we recommend that our TerraFirma Concrete Leveling customers seal the cracks and joints of their newly lifted concrete with our NexusPro solution, as it will help protect their concrete for many years to come.

My concrete seems to have settled over the winter. What should I do?

Your concrete most likely didn’t settle, but instead the adjacent concrete slabs heave upwards, due to the frozen dirt below. There is nothing that can be done, but wait for the ground to thaw and the concrete to return to its original position. If the concrete doesn’t return to its normal position in the spring, you may want to have one of our experts take a look to determine if a permanent solution is necessary.

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