
Crawl Space Efflorescence
If you are seeing white residue on the concrete blocks of your crawl space or basement, this could be efflorescence - a sign of high humidity
Why is there moisture in my crawl space?
No foundation types are perfect, but crawl spaces have their own unique set of issues. Unlike other foundation types, crawl spaces have dirt floors and vents, allowing water to seep under the foundation walls.
The dirt floors of your crawl space emit moisture into the space, which builds up, creating high humidity levels. Here in the Southeastern part of the United States, we are known for our humid weather, so crawlspaces face an increased risk of high humidity.
The combination of humid external conditions and the damp environment of a crawl space creates a breeding ground for mold, mildew, wood rot, and efflorescence. These issues not only affect the crawl space but can also impact your home’s overall indoor air quality and stability.
What is efflorescence?
Crawl space efflorescence is the white powder residue you see on concrete blocks and brick. It is caused by water seeping in and leaving mineral deposits behind. The powder is not harmful, but the water can be.
What are the signs that I need crawl space waterproofing and repair?
Along with crawl space efflorescence, if you see a wet crawl space with standing water, wood damage, wet crawl space insulation, damaged piers, mold, and musty smells or high humidity, it’s time to call a professional.
It’s important to regularly inspect your crawlspace if you haven’t had it waterproofed. At Dry Otter, we offer many services to help you repair and waterproof your crawl space.
We offer a free crawl space inspection to assess your needs and design a plan to help you take care of any water issues in your crawlspace.
What Our Customers Are Saying
EXCELLENT Based on 312 reviews Meggan Mason2025-05-08Trustindex verifies that the original source of the review is Google. William, Josh, Luis were out to encapsulate our crawlspace and did an amazing job. They were professional, timely and knowledgeable. Would recommend them and Dry Otter-Denver NC for your crawlspace needs. Sherry L Pendergrass2025-05-07Trustindex verifies that the original source of the review is Google. Great service and prices. William Josh and Louis did an Outstanding job. I would definitely recommend using them for your basement needs. Tracy Morris2025-05-05Trustindex verifies that the original source of the review is Google. Everyone employed with Dry Otter has been wonderful to work with. Heather was always so sweet over the phone. If she needed to call me right back, she did. Marcus came out when he said he would and he was very kind and so informative. He was patient and willing to take the time to answer all our questions. The crew that came out and completed the job were all kind and did a great job. They are hard working young men. The crew cleaned our basement up before they left and it looks great. Kiddos to the entire staff! ALNELLO2025-05-01Trustindex verifies that the original source of the review is Google. In today's business environment it's so rare to find a reputable company that stands behind their installations. Dry Otter is the real deal! I had a problem with a crawlspace dehumidifier they installed years ago. Dry Otter sent a tech out the same day, diagnosed the problem and ordered the new part . Three days later they came back and installed a new control board, covered under warranty. Their tech Daniel Soto even called the following day to make sure everything was working to my satisfaction. Mike Enloe2025-04-30Trustindex verifies that the original source of the review is Google. Very pleased with Curtis, Adam, Devon , and the install crew ( William, Josh , and Luis) of Dry Ottter ! Everything was on the up n up . Answered all questions clearly . Highly recommend this company and install crew for all water issues in unwanted areas of your basement. Erika Moss2025-04-15Trustindex verifies that the original source of the review is Google. The people who work there are very nice Vishrut Konijeti2025-04-05Trustindex verifies that the original source of the review is Google. Team Dry Otter were fast in their communication and changing out the dehumidifier. Good Experience group, William, Josh and Luis completed and provided all the paperwork too. Would recommend. George Barr2025-03-27Trustindex verifies that the original source of the review is Google. Great job. Installation team is easy to work with. Ronald Paulding2025-03-27Trustindex verifies that the original source of the review is Google. The crew arrived on time and went right to work. The crew lead explained what they would do, and had no problem answering questions during the process. They left the work area very clean. Very pleased. Luis Castellanos2025-03-26Trustindex verifies that the original source of the review is Google. Very good communication with the sales team and excellent service from the on-site team. Especially appreciated the on-site lead answering in great amount of detail all the questions we had. Thanks!
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Our process includes the following inspections:
Crawl Space Inspection:
- Moisture and Water Damage
- Mold and Fungus
- Insulation Condition
- Vapor Barrier
- Structural Issues
- High Humidity
- Condensation on Ducts
Basement Inspection:
- Water Intrusion
- Cracks and Wall Leaks
- Foundation Integrity
- Sump Pump Operation
- Mold and Mildew
- Basement Floor Cracks
- Hydrostatic Pressure
Our expert will personally visit your home and examine the issues you are having with your basement or crawl space foundation.
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