Basement Waterproofing Signs

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Signs your
basement needs waterproofing

Unwanted water or moisture in your basement ruins everything it touches. A home with a wet basement is also one of the biggest red flags to prospective home buyers.


These are some signs that you need to stay alert for:

  • Basement floor cracks and leakage
  • Wet basement walls
  • Musty smells
  • Damp drywall and carpet
  • Rusty appliances or floor vents
  • Cove joint seepage
  • Efflorescence, yellow, orange, or black stains
Leaky Floor

Leaky Floor &
Wall Cracks

Settling can cause your basement floors to crack. Additionally, water can build up outside your foundation resulting in hydrostatic pressure, pushing against foundation walls and forcing leaks into your basement.

When water comes up through the floor or basement walls you need to address it. Installing a perimeter drain system and drainage channel, and sump pump will help direct any water that comes through the cracks and away from your valuables.  

Stains

The white chalky powder on your basement walls, also known as efflorescence, is a common sign of moisture in your basement. Usually accompanied by yellow, orange, and/or black stains, moisture is a problem that if not addressed, can make your foundation walls crack and even cause your basement to present leaks.

Even after waterproofing your basement, concrete walls and floors continually absorb moisture from the soil and release it into the air. A reliable, low-maintenance dehumidifier system will ensure your basement and home will stay dry.

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Poor Air Quality

Basement Air Quality

Most indoor air quality issues start in dark, wet areas of the house, like the basement or crawl space. Mold thrives in this kind of environment and will commonly be accompanied by a nasty smell. In addition to mold, excess moisture can lead to wood rot, attracting pests like termites and rodents that further compromise your basement air quality. High humidity levels can also exacerbate allergies and respiratory issues, especially for those with asthma. Addressing basement air quality problems not only improves air quality but also creates a healthier living environment for your family.

After removing any organic materials (mold) and making sure your waterproofing system is working correctly, you should still consider other airborne hazards, such as dust mites and bacteria. These can also affect your basement air quality and potentially endanger your health. Fortunately, you can prevent them with the use of a dehumidifier.

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TERRAFIRMA IN ACTION

Leaky basement? Moldy odors? You’re not alone. We’ve helped families across Oregon & Washington breathe easier with our Basement Waterproofing Systems. Check out some tips and examples of our waterproofing work here.

Basements WATERPROOFED,
HOMEOWNERS HAPPY

We take pride in our years of experience making homes dry, safe, and stable. From Ashland to Corvallis, Beaverton to Olympia, our Basement Waterproofing clients have given us great feedback.

These folks came in and did a great job start to finish. When there were some difficulties they were there with answers and work arounds, always willing to get the job done to their high standards. James was great on the front end, informing me on the Everbrace information to stabilize our foundation, Sammy put all the pieces and dates together and Rocky, Harlan & Dorian did a great job on site. The basement not only looks great now, but I have the peace of mind that the foundation won't give out from under our home. Thank you!
June 28th 2022. Shout-out to TerraFirma Foundation Systems for a job well done repairing our daylight basement foundation wall. The whole process from bidding/estimating through to job completion was a good experience. TerraFirma makes good use of technology to make bid and contract review, as well as payment for services seamless. Timely email communication for scheduling of the job, status updates, including email from the project manager days prior to the scheduled start date. Kevin and his crew showed up a hair early each day of the job. Good attention to detail on site prep and work was per the stated timeline and engineer plans. Really gotta hand it to Kevin and his crew for timeliness and professionalism and attention to detail on a job well done. Thank you Joe (bidding), Tara and all the backoffice folks, as well as Kevin, Brent, and Andrew (the job site crew) for a great customer service experience. JayW
Christian and his team were on time, personable as well as professional. The team did a great job repairing the leaks in our basement and keeping us informed of any changes and progress.
Our house is over 100 years old and the basement was very humid. I had laid down a vapor barrier but it wasn't sealing out all the moisture from the walk-in crawlspace. So we decided to have our walk-in crawl space encapsulated by Terra Firma after getting quotes from 3 companies. I knew that we needed a pro to get all the weird angles done correctly. We chose TF because they were professional, communicative, and their quote was reasonable in comparison to the others. They got the job done and have stayed in contact afterwards to make sure everything was correct. As a homeowner, I appreciated how they listened to my issues and expectations while also giving me needed expertise about how to get the job done. After the encapsulation was finished, the difference was clear. Our home smells better and the air is nice and dry.
Fair quote and strong workmanship. They came in and got the job done quickly. Our basement issue seems to be resolved. I'd recommend TerraFirma!
Jorge and his colleagues Juan and Manuel did a really great job installing a sump pump and basement perimeter water collection system in our NE Portland home. As ours is a 99-year old home, they took great care to avoid damaging any “vintage” plumbing, and the result is a significant protection against water damage. Hard working, friendly guys, and I would highly recommend them!
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Katie Mardon M.recommends
TerraFirma did a great job start to finish. The guy who came out to do the assessment before the bid spent about 90 minutes with me discussing the whole situation with my basement and explained what I needed - and what I DIDN'T need. The talk of the competitors was the TF sells exclusively expensive solutions but that was not my experience AT ALL. These folks excelled in customer service, explaining the options/job to me, and there were no surprises.
I purchased two waterproofing systems from them a few years back. After the rain the past couple days its time to leave a glowing review. They did an interior drain in my basement and a separate drain tile system in my crawlspace. Both systems have been working flawlessly for 3 or 4 years now with zero water intrusion into my basement that I totally renovated after their install. They've also come out every year as promised for servicing. Thankful for connecting with them. After hearing the river of water enter into the pump and it go off every minute or so for nearly 12 hours yesterday, they deserve 5 stars. I would recommend them to anyone.
The technician (Clay Carter) was very professional, honest, and helpful in explaining parts of the system I had kinda forgotten about. I'd somewhat neglected my basement system over the years, so I appreciated his kindness and patience as he went through and checked everything. System is still working great though! No water in the basement after 5 years, and the mechanical stuff was still in good order, I'd call that a win.
We had our longtime basement flooding problems addressed by Terra Firma in December 2023. We have now had some super hard rains and it has stayed DRY. The team was efficient and professional & Jessika was a great communicator and I couldn't be happier. Highly recommend!
The Crew was great to work with, Region Supervisor did a great job, The lady on the phone was knowledgeable on the job process and has great communication style. The job turned out just has they described, we had our crawl space waterproof.
We had TerraFirma come out and do our radon mitigation, fix our fireplace/chimney, and waterproof our basement. They were professional and always on time. Great service and friendly employees. I will be using them again. Thanks!

Basement Waterproofing Homeowner Questions


Should I be concerned about damp spots on my basement carpet? What should I do?

If you have wet carpet in your basement or damp spots on the floor or baseboards, this could be a sign that you have a leaky basement issue. Wet basements create more problems than just wet carpet. Mold or mildew could be growing under the carpet, which fills the air you breathe with musty odors and hazardous mold spores.

The first step in fixing your leaky basement is finding the source of the water intrusion. Save yourself the hassle. One of our basement waterproofing experts will inspect your basement for waterproofing problems and recommend the best solution for your home.

Why should I trust your methods to waterproof basements?

TerraFirma is more than just your local waterproofing contractor. We are proud to be part of The Basement Systems® International Network, which comprises more than 300 elite basement waterproofing and crawl space repair contractor companies all across the United States and Canada.

As a member of the Basement Systems® International Network, TerraFirma is able to provide our customers with industry-leading products and warranties, while remaining committed to personalized service and custom solutions.

My basement has flooded in the past. What can I do to prevent this?

Basements can flood from a number of areas, including: floor cracks, leaking or burst pipes, leaking windows, hatchway doors, sump pump failure, and water heater failure. Our local experts will help you understand and address the cause of your basement flooding.

How should I handle a wet, leaky basement?

  • Avoid any electrical hazards – Avoid touching any devices or wires
  • If possible, pump out any standing water
  • Dry out and discard any wet non-essential organic materials such as wood
  • Find the cause of leaking and flooding. Our local experts will help you find the causes and provide you with a tailored solution to your basement.

What are footing drains?

Footing drains are installed just outside the foundation of your home’s basement. These are thick pipes with holes designed to let water flow inside. A layer of stones is put on top of the drainpipe to prevent soil backfill from blocking the pipe. However, with time, backfill can seep through the stones and clog the pipe. Improperly maintained footing drains can lead to a leaky basement.