The mold in my Flatbush apartment came back after the super painted over it. Why?

Paint does not stop the water feeding it. The leak or condensation has to be fixed and the growth removed.

Who pays for mold removal in a rent-stabilized Flatbush apartment?

Generally the owner, who must fix the cause. Damage to your own belongings may fall under renters insurance.

Can you work in my building without shutting down the elevator?

Usually yes. We pad and protect it and move sealed bags at quiet times agreed with the super.

Do you also work in Midwood houses?

Yes. Basements, bathrooms and attics in houses are part of our work here too.

Apartment Mold & Leak Repair in Flatbush & Midwood, NY

Quick answer

Mold work in Flatbush and Midwood is mostly apartment work in prewar elevator buildings and walk-ups, plus older houses on the Midwood side. The usual causes are slow leaks from old risers and bathroom plumbing, winter condensation on cold exterior walls, and damp basements. We trace the water, contain the work area inside the unit, remove the growth, dry the framing, and document it for the tenant, the owner and any HPD reinspection.

Updated September 2026

Local conditions

What drives mold in Flatbush and Midwood buildings

Flatbush and Midwood had about 153,500 residents in 2023, the city's 24th largest neighborhood, and a 21.0 percent homeownership rate. Most households rent, and in 2009, 82.5 percent of the rental units were rent-regulated. Long tenancies are good for neighbors and hard on old plumbing, because walls and fixtures go decades without being opened.

Winter adds condensation. Central Park January normals run about 39 to 41 degrees by day and 27 to 30 at night, cold enough to sweat single-pane windows and uninsulated exterior walls in an older apartment. Corner bedrooms and the walls behind furniture are where it shows first.

Tenants do report it. HPD completed 56,198 inspections in fiscal year 2022 in response to indoor allergen complaints, and a mold violation of 10 to 30 square feet is Class B with 60 days to correct. When the deadline is set, the owner needs the cause fixed and the work recorded.

82.5%Rental units that were rent-regulated, 2009

21.0%Homeownership rate in Flatbush and Midwood, 2023

56,198HPD allergen-complaint inspections in FY2022

27-30°FTypical January night lows

Opening a kitchen wall at a leaking riser in Flatbush

Jobs we do most in Flatbush and Midwood

Apartment work in older buildings makes up most of our Flatbush calls. Each job has its own page.

Apartment Mold Remediation

Containment and removal inside a unit, with hallways and elevators protected.

HPD Mold Violation Remediation

Fixing the cause and the mold before an HPD deadline, with records.

Hidden Leak Detection

Tracing a wet wall to the riser, the unit above or a roof drain.

Window Condensation Mold Removal

Black spotting on sills and exterior walls in older apartments.

Wall Mold Removal

Growth behind furniture and inside cold exterior walls.

Basement Mold Removal

Damp basements in Midwood houses and apartment building cellars.

Working in large prewar buildings

In a large elevator building, the leak is often several floors away from the stain. We follow the readings along the riser and, with the super or the managing agent, check the units above before anything is opened, so the wall comes down once, in the right place.

We protect the elevator and the hallway, keep the work inside sealed containment, and clean the path out every day. The owner gets a written scope, photos and final readings the owner can send to HPD to show the violation was corrected.

Apartment mold removal and leak repair in Flatbush and Midwood, Brooklyn