Commercial Roof Leaks in Queens, Found and Stopped
Commercial roof leaks get found and stopped by Hearth Roofing on flat and low-slope roofs. I trace the water to where it gets in. If the leak is active, my crew gets out to you fast.
- Office buildings
- Retail stores
- Warehouses
- Restaurants
- Mixed-use buildings
Flat & low-slope roofs
Source traced firstYour stain points somewhere else
Water runs along the deck before it drops, so the stain is rarely right under the hole. These are the spots I check first.
| Where it shows inside | Where it's getting in | What I do |
|---|---|---|
| Along an exterior wall | Parapet wall flashing Top source in Queens | Re-flash the base, seal the coping |
| Under or near a rooftop unit | HVAC curb or other penetrations | Re-flash the curb or boot |
| Mid-ceiling, days after rain | Ponding water, seam separation | Reweld or re-tape the seam |
| Near a column or interior drain | Roof drain | Clear it, re-flash the bowl |
| At the wall by a scupper | Scupper and its flashing | Re-flash and seal it to the membrane |
Flashing is my specialty. The parapet and curb rows lead into commercial flashing repair.
The repair your membrane takes: TPO, EPDM, modified bitumen, built-up
The best material to stop a leak is whatever is already on your roof. Caulk from a tube buys a week.
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TPO
Hot-air welded TPO patch, with loose seams rewelded.
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EPDM
Seams primed and closed with tape, then a bonded EPDM patch.
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Modified bitumen
Torched or self-adhered SBS patch, then the flashing around it redone.
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Built-up roof
Bad plies cut out and rebuilt, with coating where it fits.
After the repair, preventive maintenance and drain clearing keeps the next leak from starting.
How I find the source before patching anything
I start inside, where the water is, and work up. Patching the first open seam I see just wastes your money.
- I trace the active leak from your ceiling up to the roof above it.
- Moisture survey of the membrane around it.
- Drains, scuppers and flashing get checked, with photos of what I find.
I plan the work around your business hours.
If water's coming in now, same-day emergency tarping goes on first.
Before you book the repair
I find the real entry point, repair it to match your membrane and re-flash whatever is failing around it. Sealant over a guess fails in the next storm.
Yes. My crew tarps or temporarily seals it first, and then we schedule the permanent repair.
The estimate is free. Price depends on the membrane, the source and how much insulation is wet. You can see what a leak repair typically costs before you call.
Get the leak found and stopped
Call while it's dripping and I'll tell you when my crew can be up there. Book the free estimate and you'll get a written scope with photos before any work starts.