Park Slope · 11215 · Brownstone restoration

438 15th Street

A representative full-scope brownstone restoration on a quiet Park Slope side street — facade patching, stoop work, ironwork preparation, and a color-matched coating system to bring the building back to its original character.
Project facts

The specs.

Address
438 15th Street Park Slope, NY 11215
Scope
Full brownstone restoration — facade, stoop, ironwork prep
Duration
4–6 weeks
Materials & methods
Vapor-permeable patching compound
Custom-tinted breathable coating
Lime-blend mortar for joint repair
Two-part epoxy primer on exposed metal
Neighborhood

What we found

438 15th Street arrived with the typical accumulation of issues we see on Park Slope brownstones that have not had serious facade work in 30+ years. Multiple layers of failed coatings, spalling at the lower facade where street-level salt does its damage, several courses of degraded mortar joints, and a stoop showing edge wear and minor riser delamination. Nothing catastrophic — but enough total deterioration that surface-only treatments would have been a waste of money.

The building was sound underneath. The brownstone was layered NYC sandstone of the era — soft, but salvageable with the right patching approach. The stoop had its original profile intact under the worn surface. The cornice was rusted but repairable.

The restored facade with color-matched patching blended into surrounding stone.

The Work

We stripped the failed coatings back to the underlying brownstone. We mapped each spalling area, tested the substrate, and patched in vapor-permeable layers color-matched to the surrounding stone. The mortar joints were selectively repointed with a lime-blend mortar — soft enough to flex with the building, hard enough to last decades.

 

The stoop was treated as its own project: edges reformed where the wear was deepest, risers patched and tooled to match the original profile, ironwork scraped, primed, and prepared for paint. The cornice was scraped, treated for rust, and recoated with a high-grade exterior system.

The result

The finished facade reads as continuous and original. From across the street, a visitor would not be able to tell which sections were patched and which are untouched original — which is exactly the standard. The building should not need significant facade work for another 20+ years if the new coating system is maintained as recommended.

Project gallery

A few additional views of the work at 438 15th Street.
The restored facade with color-matched patching blended into surrounding stone.
Stoop edges reformed with vapor-permeable patching to match original profile.
Ironwork prep — scraped, primed, and ready for paint.

Want to walk to this project?

438 15th Street is a real address. We can meet you there for a walkaround, point out the specific repair work, and answer questions in person. Or we can send you photos of the precise details. Just call Sajin at 631-464-8200.
FREE ESTIMATE · NO OBLIGATION

Tell us about your building.

The quickest way to start is a phone call to Sajin. We will set up a time to come look at the facade, walk through what’s failing and what isn’t, and put together a written estimate within a week. No pressure to move forward.

HIS LICENSE 2073937-DCA

Bonded & Insured

Family-Owned · Since 2005
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