Quick answer
Mold work in East Flatbush splits between rented apartments, where leaks from above and old plumbing are the usual causes, and row houses with finished basements that take on water in heavy rain. We trace the water, pump and dry where needed, contain the work area, remove the growth, dry the framing and give the owner and tenant a written record of the cause and the work.
Updated September 2026
Local conditions
What drives mold in East Flatbush homes
East Flatbush logged 217.7 serious housing code violations per 1,000 units in 2019, among the highest rates in the city. In 2009 the district had about 151,000 residents, and 49.6 percent of its rental units were rent-regulated, so most mold is found by a tenant and fixed by an owner.
Brooklyn holds about 30 percent of the city housing units, one- and two-family buildings make up 26 percent of them, and 69 percent of occupied units are rented. In East Flatbush that often means a small owner in one unit, tenants in the others and a finished basement below.
Storms are getting heavier. City sewers are generally built for 1.5 to 1.75 inches of rain an hour, while Ida brought 3.15 and the September 29, 2023 storm 2.5. When the sewer cannot keep up, basements take the water, and HPD gives a mold violation 90, 60 or 24 hours to correct depending on its size.

Jobs we do most in East Flatbush
Rented apartments and storm-soaked basements make up most of our calls here. Each job has its own page.
Apartment Mold Remediation
Containment and removal inside a rented unit, hallways protected.
Flooded Basement Cleanup
Pump-out, tear-out and drying after storm water gets in.
Basement Mold Removal
Growth on basement walls and framing left by earlier water.
HPD Mold Violation Remediation
Correcting the cause and the mold before an HPD deadline.
Sewage Backup Cleanup
Floor drain backups cleaned, disinfected and dried.
Hidden Leak Detection
Tracing a wet wall or ceiling to the pipe or unit above.
Working with small owners and their tenants
Many East Flatbush buildings have an owner upstairs and tenants below, sometimes in the basement. We schedule around both households, keep the work inside sealed containment, and explain to each what we found and where the water came from.
After a basement flood, we pump and dry before deciding what comes out. Porous material soaked by sewer water is removed; everything else is cleaned, disinfected and dried to readings before anything is rebuilt.
More in Brooklyn
Nearby areas we also cover
Flatbush & Midwood Crown Heights Canarsie & Flatlands All coverage
Questions from East Flatbush
Stay out of standing water near outlets, take photos, and get the water out and drying started within a day.
Yes. Drywall, carpet and paneling hold water, so they grow mold quickly after a leak or flood.
Report it to the owner in writing and call 311; HPD can inspect and issue a violation.
Yes. The owner remains responsible for the repair, and we work with both owner and tenant.
