Part of our Suffolk County mold remediation coverage
The Hamptons & East End, NY · IICRC S520 CertifiedMold Remediation in the Hamptons
IICRC-certified mold remediation for the South Fork and East End — the humidity, waterfront exposure, and closed-up seasonal homes out here make mold a year-round risk.
Why East End Homes Get Mold
Mold needs moisture and time. The Hamptons and Twin Forks supply both in ways the rest of Long Island doesn’t — and often no one is home to catch it early.
Homes closed for the season
A house shut up from fall to spring with the heat low is a greenhouse for mold — especially with a slow leak or high indoor humidity no one is monitoring.
Coastal humidity & salt air
Waterfront and near-shore homes stay damp. That constant moisture in basements, crawlspaces, and around HVAC gives mold a year-round foothold.
Waterfront & flood exposure
Southampton, Montauk, Sag Harbor and the bays flood and hold groundwater. Damp below-grade spaces are where East End mold most often starts.
Older & complex construction
Additions, crawlspaces, and tight framing trap moisture out of sight. We find where it’s hiding and treat it before it spreads through the home.
Serving the Hamptons & the Twin Forks
We reach the East End from our Bellport base daily. Explore our local pages for the towns where we work most often:
Also serving: Amagansett, Bridgehampton, East Quogue, Hampton Bays, Montauk, Quogue, Remsenburg, Sag Harbor, Sagaponack, Speonk, Wainscott, Water Mill — and the North Fork from Riverhead to Orient.
What Our East End Mold Remediation Includes
Every job follows the IICRC S520 standard for professional mold remediation:
- Inspection & moisture assessment — we locate the moisture source and map the mold before any work begins.
- Containment — the area is sealed and put under negative air so spores can’t spread through the home.
- HEPA air filtration — commercial air scrubbers capture airborne spores throughout the job.
- Removal of mold-damaged materials — unsalvageable drywall, insulation, and porous materials are bagged out under containment.
- HEPA vacuuming, cleaning & encapsulation — surfaces are HEPA-vacuumed and treated; crawlspaces and basements can be encapsulated to resist regrowth.
- Post-remediation verification — we confirm the area is clean and dry, and can arrange clearance testing, before closing up.
Why East End Homeowners Choose K.O.S. Restoration
- Locally owned and operated on Long Island since 2006 — the East End included.
- IICRC-certified in mold remediation (S520) and water damage restoration.
- We fix the moisture source — often water damage — so mold doesn’t return.
- Discreet, careful work in high-value and seasonal homes.
- 331+ five-star Google reviews from Long Island homeowners.
What Long Island Homeowners Say
“We found water damage and mold from a past leak going down to the basement. Tom and his team were professional, reasonable, and very thorough — all the mold was removed and the area treated from the floor joists to the walls. No more musty smell. Would highly recommend KOS.”
“Fast response, high-quality workmanship, and outstanding service from start to finish. Tom takes the time to explain every step so you feel confident. You can tell they’re licensed, insured, and highly experienced.”
“I cannot even begin to describe how EXCELLENT this company is! Brianna put me at ease, Rob arrived early and was just as professional. This was a Friday at noon and by 4:30pm they completed the job — better than I ever expected!”
Hamptons Mold Remediation — FAQ
Can you check a seasonal home for mold while it’s closed up?
Yes. If you or your property manager suspect mold in a house that’s been shut for the season, we inspect for hidden moisture and growth and remediate what we find — coordinating with whoever manages the property.
How fast can you get to the East End?
We serve the Hamptons and North Fork daily, roughly 45–75 minutes from our Bellport base. Mold only spreads the longer it sits, so we schedule inspections quickly.
Is mold from a slow leak covered by insurance?
It depends on your policy and the cause. Many policies limit mold, especially from long-term leaks. We document the moisture source and damage to give your claim the best chance.
Do you also fix the water problem behind the mold?
Yes — see our Hamptons water damage restoration page. Fixing the moisture source is how we keep mold from coming back.
Think you have mold on the East End?
Don’t wait for it to spread through a closed-up house. Call K.O.S. Restoration for IICRC-certified mold remediation across the Hamptons and North Fork, or request your free inspection.
Call (631) 560-8999