Roofing · Long Island

Roof leak repair.

Water on the ceiling is a symptom. We trace the roof leak to where it gets in, seal it at the source and check for damage underneath.

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A roof leak rarely shows up where it starts. Water gets in at one spot, runs along the deck or a rafter and drips through the ceiling somewhere else. That’s why good roof leak repair starts with finding the source. Home Crew Construction repairs roof leaks on homes across Long Island, in Nassau County and Suffolk County, and we’re open 24/7 when water is coming in.

Quick answer: What should I do if my roof is leaking?

Catch the water, move valuables and call a roofer; don’t go up on a wet roof yourself. On Long Island, Home Crew Construction is open 24/7: the crew stops the leak, tarps the roof if needed, then traces the leak to its source and plans the permanent repair, with a written price first.

How it works

How a roof keeps water out.

A roof is a system of layers, not just shingles. Each one has a job, and a leak usually means one of them has failed.

Illustration. Point at a part to see what it does.

What causes a roof leak?

Aerial view of a roof replacement in progress, new blue underlayment going on beside a backyard pool — Roof replacement, underlayment going on· Home Crew Construction

Most leaks start where the roof is interrupted, not in the middle of a field of shingles:

Chimneys. Failed step or counter flashing, or cracked mortar above the roofline. See chimney flashing.
Skylights. Worn flashing or seals around the frame. See skylight repair.
Plumbing vents and roof vents. Rubber pipe boots crack in the sun, and vent flanges work loose.
Valleys and walls. Water concentrates where two slopes meet or where a roof meets a wall.
Missing or damaged shingles after wind and storms.
Ice dams and clogged gutters. Water backs up under the shingles at the eaves.

Clogged or sagging gutters are an easy cause to miss. When water can’t drain off the edge, it backs up under the first rows of shingles and into the eaves. If that’s the source, gutter repair is part of the fix. We repair leaks on asphalt shingle, tile, metal and flat roofs.

Signs of a roof leak

Brown stains or bubbling paint on a ceiling or upper wall
Drips or damp insulation in the attic after rain
A musty smell, or mold in the attic or top-floor closets
Water stains around a chimney, skylight or bathroom fan
Dark streaks or soft spots on the underside of the roof deck

Even a slow leak is worth fixing quickly. Wet insulation stops insulating, wet wood rots, and mold can follow.

Need help with roof leak repair?

Free quotes, a reply within 24 hours, and we answer the phone 24/7.

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How we find and fix a roof leak

Illustration · Roof deckThe wood sheathing everything is nailed to. Soft or rotted decking has to be replaced before new shingles go on.

Inspect inside and outWe look at the stain, then go into the attic and onto the roof to trace the water back to where it gets in.
Explain and priceWe show you the cause and give you a clear written price before work starts.
Repair the sourceThat might mean new flashing, a new pipe boot, replaced shingles or a section of new decking and underlayment, depending on what failed.
Check underneathWe look at the deck and framing around the leak so a hidden problem isn’t left behind.
Clean upWe clean up completely before we leave.

What to do while you wait

Aerial view of a large home with a cedar shake roof, surrounded by trees — Cedar shake roof· Home Crew Construction

Put a bucket under the drip and move furniture and electronics out of the way.
If a ceiling is bulging with water, keep people out from under it.
Take photos of the damage for your records and your insurer.
Stay off the roof, especially when it’s wet or windy.

If the damage is too big to fix right away, we tarp the roof to keep weather out until the permanent repair.

Why do roof leaks show up in winter?

Illustration · Leak barrierA sealed membrane along the eaves and valleys, where ice and wind-driven rain get under shingles.

Long Island winters bring a particular kind of leak. Heat escaping from the house warms the roof deck, snow on top melts, and the water runs down to the cold eaves, where it freezes into a ridge of ice called an ice dam. More meltwater then pools behind the ice and works its way up under the shingles. The fix is usually twofold: repair the damaged roof edge, then deal with the cause, which is often poor attic insulation or ventilation. New roofs get a self-sealing leak barrier along the eaves for exactly this reason.

Need help with roof leak repair?

Free quotes, a reply within 24 hours, and we answer the phone 24/7.

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Get a Free Quote Call 631-965-0881

When a leak means a bigger problem

Cedar shake roof with dormers and a stone chimney on a white house beside a pool, seen from above — Cedar shake roof with dormers· Home Crew Construction

One leak is usually a repair. Several leaks, or leaks that keep coming back on an older roof, can mean the roof itself is worn out. If that’s the case we’ll tell you, and explain what a roof replacement would involve.

Roof leaking now? Call 631-965-0881, day or night. For a slower leak, request a free quote and we’ll reply within 24 hours.

Roof leak repair FAQ

Common questions.

Still not sure?

Call 631-965-0881 any time. We'll tell you straight whether it's a repair or a replacement.

Do you handle emergency roof leaks?

Yes. We’re open 24/7. Call 631-965-0881 and we’ll get a crew out to stop the leak, tarp the roof if needed, and then plan the permanent repair.

Why does my roof only leak in heavy rain or wind?

Wind-driven rain gets pushed sideways and uphill, under lifted shingles and loose or poorly lapped flashing that stays dry in a gentle rain. Leaks that only show up in storms usually point to flashing, a vent or a damaged section of shingles.

Can a leak be repaired, or do I need a new roof?

Most single leaks can be repaired at the source. Several leaks at once, or leaks that keep coming back on an older roof, can mean the roof is worn out. We’ll tell you honestly which one you need.

Why do skylights leak?

Most skylight leaks come from failed or badly installed flashing around the frame, not the glass itself. Re-flashing the skylight properly usually stops the leak.

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