Roofing Contractor
Park Slope, Brooklyn
Park Slope's 19th-century brownstones, slate-roofed Victorians, and landmark-protected rowhouses demand a roofer with genuine historic building expertise — not a crew that treats every job like a new-construction shingle replacement.
- Brownstone flat deck restoration — parlor-floor leaks fixed right
- Slate roof assessment and targeted restoration
- LPC historic district filings and compliance
- Parapet wall waterproofing and coping repair
Roofing Challenges Unique to Park Slope
Park Slope's architectural heritage is a source of pride — and a source of very specific roofing challenges that generic contractors consistently get wrong.
Brownstone Roof Deck Restoration
Park Slope's 1880s–1920s brownstones have flat roof decks over the rear parlor-floor extension — often the first place moisture enters the building. Original built-up roof systems have long since failed. We replace them with modern modified bitumen or TPO systems properly flashed to the surrounding masonry and parapet.
Landmark & Landmarked-Adjacent Compliance
Much of Park Slope is within the Park Slope Historic District, which means exterior work visible from the street requires Landmarks Preservation Commission (LPC) review. We prepare and submit LPC applications, specify compliant materials, and ensure all work passes DOB inspection without violations.
Slate & Tile Roof Restoration
Park Slope's Victorian-era homes and Romanesque Revival rowhouses often feature original slate roofs — some over 100 years old. Many only need targeted slate replacement and underlayment repair, not full removal. We assess slate condition accurately so you're not over-replacing a roof that has 30+ years of life remaining.
Parapet Wall & Cornice Waterproofing
The ornate cornices and decorative parapets that make Park Slope beautiful are also its most common water entry points. Cracked mortar, missing through-wall flashing, and deteriorated coping allow water to migrate down into walls and ceilings. We address parapet waterproofing as part of every roof project — not as an afterthought.
What We Do Here
All work performed to NYC DOB code with LPC coordination where required. Written estimates, DOB permit filing, and 10-year workmanship warranty included.
Frequently Asked Questions
Is my Park Slope brownstone in the Historic District?
Most of Park Slope between Flatbush Ave and Prospect Park West is within the Park Slope Historic District. Work visible from the street — including roof materials at parapets and cornices — requires LPC review. We can determine landmark status for your specific address and handle all filings.
My slate roof is 80+ years old — does it need full replacement?
Not necessarily. Vermont or Pennsylvania slate installed before 1950 is often in better condition than the underlying felt or flashings. We assess the slate itself, the flashings, and the deck — and replace only what actually needs replacement. Many Park Slope slate roofs can be restored for a fraction of full replacement cost.
What's causing the water stain on my parlor-floor ceiling?
On Park Slope brownstones, parlor-floor ceiling stains almost always trace back to the flat roof deck over the rear extension, failed flashing at the parapet wall, or deteriorated coping mortar. We'll identify the exact entry point and repair it — not just the symptom.
How do I know if my brownstone's roof deck needs replacement or just repair?
The condition of the membrane, the state of the deck boards underneath, and whether there's active moisture in the assembly all determine this. We perform non-destructive moisture testing before recommending replacement — many Park Slope flat roofs can be extended with targeted repairs and recoating.
Free Brownstone Roof Assessment in Park Slope
We'll assess your brownstone's roof deck, parapet, and slate condition — and tell you honestly what needs immediate attention and what can wait.