Interior and exterior waterproofing for Fairfield County and Westchester County homes — Stego vapor barriers, EZ Breathe ventilation, foundation crack sealing, and drainage correction. Done right the first time, by an IICRC-certified restoration team that understands building science, not just selling systems.
We tailor the system to the source of the water — not the other way around. Below is the full menu of waterproofing solutions we install across Fairfield + Westchester.
Below-slab vapor barrier installation per Stego Industries spec. Stops water vapor migrating up through soil into your finished basement — the most common source of chronic basement humidity that feeds mold.
Patented whole-basement ventilation system that removes excess moisture, allergens, mold spores, radon, and VOCs. Often the final preventive step after a water or mold remediation job.
Polyurethane or epoxy injection for leaking foundation cracks — full-depth seal that holds against hydrostatic pressure.
French drain installation around interior perimeter + sump basin + battery-backup pump. The standard solution when exterior excavation isn't practical.
Dig out the exterior foundation wall, apply waterproof membrane, install drain tile to daylight. The gold-standard fix for chronic exterior water intrusion.
Often the cheapest, highest-impact fix. We grade the exterior to slope away from the foundation and extend downspouts to actually move water away. Sometimes this is all you need.
Full Stego-system encapsulation of crawl-space dirt floors + dehumidification. Eliminates the moisture source that feeds mold and rot above the crawl space.
Interior wall coatings + antimicrobial primer where source moisture has been addressed but visible damage remains. Cosmetic + protective final layer.
The 911 Storm Difference
Most basement waterproofing companies sell one system. We've spent years restoring the damage that wrongly-prescribed waterproofing left behind. That's why we approach every basement as a building-science problem first: thermal imaging, moisture mapping, source identification — then the system, with the right manufacturer credentials behind it.
Selected photos from waterproofing assessments and projects. The pattern is consistent: identify the source first, install the right system, verify with moisture mapping.
Mineral salts on basement walls = water actively passing through. Check our problem page on efflorescence.
Even after airing out — chronic moisture is feeding hidden mold somewhere.
Sump pump may be fine but exterior drainage is failing.
Moisture wicking up from the slab or below-grade walls.
Vapor migration through slab. Stego encapsulation + EZ Breathe is the fix.
Source is water moisture. Remediation + waterproofing prevents recurrence.
Water damage restoration responds to an active water event (burst pipe, sewage backup, flood). Basement waterproofing prevents water from entering in the first place — sealing foundations, installing vapor barriers and drainage, and addressing the moisture sources that drive long-term basement dampness and mold growth.
Cost varies widely based on scope. Interior crack injection: $400-$1,500 per crack. Full interior drain tile + sump system: $4,000-$15,000. Exterior excavation + membrane: $10,000-$50,000+. Vapor barrier (Stego) + EZ Breathe ventilation: $3,000-$8,000. We provide free written quotes after on-site assessment.
Most homeowners insurance does NOT cover preventive waterproofing — they cover sudden and accidental water events only. However, if waterproofing is needed as part of restoring damage from a covered event (burst pipe, etc.), it can be included in the claim scope.
Depends on the source. Hydrostatic pressure from outside the foundation usually requires exterior solutions (grading, drainage, membrane). Vapor migration through walls/slab is addressed with interior systems (Stego vapor barriers, EZ Breathe). Often a combined approach works best. Our free assessment identifies the source first, then prescribes the right system.
Stego is an industry-leading below-slab vapor barrier (ASTM E1643 compliant). Water vapor migrating up through soil into a basement or crawl-space slab is one of the most common sources of chronic basement humidity, peeling paint, efflorescence, and the hidden moisture that feeds mold growth. We're certified Stego installers — proper installation is what separates a permanently dry basement from one that keeps weeping moisture.
We're an IICRC-certified restoration company first, waterproofers second. That means we approach basement moisture as a building-science problem — using thermal imaging and moisture mapping to find the actual source, not just selling a system. If your problem is from above (roof, plumbing), we'll tell you. If it's truly groundwater, we install the right system from the right manufacturer with the right warranty.
Pipe bursted and flooded our kitchen floor and into the basement. Called 911Storm and Raf came to check out the situation. He tore out all the water damaged material and dried it all out. Thanks for the fast response!
When my basement flooded after heavy rain, I didn't know where to turn. 911 Storm responded within an hour, removed all the water, and dried everything completely. Their team was professional and compassionate throughout the process.
A burst pipe caused water damage in my kitchen, and 911 Storm came to the rescue. They worked quickly to remove the water, dry the area, and repair the damage. I was impressed with their attention to detail. Five stars!
After a small kitchen fire left smoke and soot damage, I called 911 Storm for help. They cleaned everything thoroughly, restored the damaged cabinets, and even eliminated the smoke odor. My kitchen looks brand new!
I discovered mold in my basement and immediately called 911 Storm. Their team arrived quickly, conducted a thorough inspection, and removed the mold efficiently. They even helped prevent future mold by improving ventilation. Highly recommend!
911 Storm made what could have been a nightmare feel manageable. They explained every step of the process, removed the mold safely, and cleaned up completely. My family feels safe in our home again. Thank you!
60-minute response across Fairfield County, CT and Westchester County, NY. No obligation, no high-pressure sales.
IICRC Certified • Licensed & Insured • All Major Insurance Carriers
