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Roofing LLC
Bulkhead & Roof Hatch Repair

Bulkhead & Roof Hatch Repair and Waterproofing in NYC

Bulkheads and roof hatches are the openings that let people reach the roof, and they are common leak points. Failed flashing, worn gaskets and cracked masonry let water into stairwells and top floors. East NYC Roofing, in business 20 years, repairs and waterproofs them on buildings across the five boroughs, Nassau and Westchester.

  • 20 years in business
  • 10-year warranty on replacements
  • Within 2 hours for leaks
  • Free written estimate

Problems this solves

  • Water stains or dripping inside the top-floor stairwell
  • Rusted or warped roof hatch cover that no longer closes tight
  • Worn gaskets and weatherstripping around the hatch
  • Bulkhead door that leaks at the threshold or frame
  • Cracked brick, parging or mortar on the bulkhead walls
  • Failed flashing at the base of the bulkhead or hatch curb
  • Peeling paint and rust on metal doors and frames
  • Water entering around the hatch curb during storms
  • Hatch hardware, springs or ladders that no longer work properly

Bulkhead & Roof Hatch Repair explained

A bulkhead is the small structure on a roof that encloses a stairway to the roof, and a roof hatch is a smaller hinged opening, usually reached by a ladder. Both penetrate the roof, so they depend on good flashing, a sound curb and tight seals. Over time, hatch covers rust and warp, gaskets harden, mortar and parging crack, and flashing at the base fails. Repairs range from replacing gaskets and hardware to rebuilding the curb, re-flashing into the roof membrane, repairing masonry and waterproofing the bulkhead walls. Egress and safety matter here, so work should keep access safe and meet applicable building requirements.

Options and materials

Hatch cover and hardware replacement

New hatch lid, springs, hinges, latches and gaskets so the opening closes tight and operates safely.

Curb rebuild and re-flashing

Rebuilding or repairing the curb the hatch sits on and flashing it into the roof membrane to stop base leaks.

Bulkhead masonry and parging repair

Repointing, replacing damaged brick and repairing parging or stucco on bulkhead walls, then sealing them.

Bulkhead door repair

Re-hanging, repairing or replacing the door and frame, adding thresholds, weatherstripping and rust treatment.

Bulkhead waterproofing and coating

Applying a waterproofing or elastomeric coating to walls and roof of the bulkhead to protect the structure.

Our process

  1. Find the leak pathWe inspect the hatch, bulkhead walls, door, curb and flashing, and check the stairwell or ceiling below for water entry points.
  2. Written estimateYou receive a free written estimate listing the repairs, replacement parts and any masonry or door work involved.
  3. Prep and protectionWe protect the stairwell and roof surfaces, set up safe access and remove failed components, rust and loose material.
  4. Repair structureCurbs, masonry, doors and frames are repaired or replaced, with new gaskets and hardware installed where needed.
  5. Flash and waterproofBase flashing is tied into the roof membrane and bulkhead walls are sealed or coated to shed water.
  6. Test operationWe confirm that hatches and doors open, close and latch correctly, clean the site and photograph the completed work.

What affects the price

Scope of repair

Replacing a gasket costs far less than rebuilding a curb, re-flashing and replacing the whole hatch assembly.

Hatch or door size

Larger hatches and heavier bulkhead doors need more material, hardware and handling.

Masonry condition

Cracked walls, failed parging and deteriorated mortar require more repair before waterproofing can hold.

Roof membrane tie-in

The roof type and how much membrane must be cut back and re-flashed around the opening influence labor and materials.

Rust and metal work

Corroded frames and covers may need fabrication or replacement rather than simple repair and repainting.

Access and approvals

Roof access, occupied stairwells and any required filings or board approvals affect scheduling.

Getting a price

Because these factors change from roof to roof, we don't publish one-size-fits-all prices. We inspect your roof for free and give you a written, itemized estimate before any work starts.

Every bulkhead & roof hatch repair job includes

  • Free written estimate and leak inspection
  • Permit handling where required for the work
  • Protection of stairwell, roof surfaces and property
  • New gaskets, weatherstripping and sealants as needed
  • Re-flashing tied into the roof membrane
  • Masonry or parging repair within the agreed scope
  • Dumpster and debris removal
  • Jobsite cleanup
  • Photo documentation and written workmanship warranty reference, terms on our warranty page

Written workmanship warranty on every job; full roof replacements carry our 10-year warranty. Warranty terms.

Frequently asked questions

Why does my top-floor stairwell leak?
Common sources are the roof hatch gasket, the curb flashing, cracks in the bulkhead walls or a worn door threshold. We trace the water path from above rather than guessing, since the visible stain is often not at the source.
Can a roof hatch be replaced without replacing the roof?
Usually yes. The hatch and curb can be replaced and flashed into the existing roof membrane. If the surrounding membrane is badly worn, we will point that out and may recommend repairs around the opening as well.
Should I repair or replace the hatch?
Repair works when the cover and frame are sound and only gaskets or hardware have failed. If the lid is rusted through or warped, replacement is typically more reliable than repeated repairs. We recommend after inspection.
Can you repair the brick and parging on the bulkhead?
Yes. We repoint mortar, replace damaged brick and repair parging or stucco, then seal or coat the walls. Larger masonry restoration can be coordinated with our masonry work.
Do bulkhead repairs require permits?
Smaller maintenance repairs may not, while structural changes, door replacement or work affecting egress can involve NYC Department of Buildings requirements or board approval. Requirements vary by building. We check what applies before starting.
Is a leaking bulkhead urgent?
It can be. Water in a stairwell can damage finishes and electrical components, and create slip hazards. If water is entering during a storm, call our 24/7 emergency line; we respond within 2 hours to help limit damage.

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