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ROOF REPAIR · CORNWALL, NY
Roof Repair in Cornwall, NY.
Roof repair in Cornwall, NY — ice dam leaks, tree damage, moss and flashing repairs on shaded and hillside homes near Storm King. Call for an inspection.
Why hire us for roof repair in Cornwall?
In Cornwall, roof repairs follow the seasons. In late winter we see leaks from ice dams on shaded, north-facing roofs where snow sits for weeks. In summer and fall the calls are about branches that have scraped or punctured shingles and gutters full of leaves backing water under the roof edge. Moss growing on roofs around Cornwall-on-Hudson and the Storm King side holds moisture against the shingles and lifts them over time. A repair visit here usually includes clearing debris, replacing damaged shingles, and checking whether the attic ventilation is part of the problem.
What we see on Cornwall roof repair jobs
- Ice dam leaks are common on shaded north slopes; we repair the damage and add ice barrier where shingles are replaced.
- Fallen limbs and scraping branches are removed and the punctured shingles and underlayment replaced.
- Moss is cleared gently by hand, since pressure washing strips the protective granules from the shingles.
Neighborhoods we serve in Cornwall: Cornwall-on-Hudson, Mountainville, Firthcliffe, Angry Orchard corridor, Route 9W area, Woodland Avenue district.
LOCAL PROJECTS
View All →Roof Repair work near Cornwall, NY
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Roofer sealing step and counter flashing on stone chimney base
03 / 11
Placing metal flashing in roof valleys to prevent leaks
GOOGLE REVIEWS
FIVE STARS. EARNED, NOT ASKED.
Real reviews from real homeowners across our service area. We don't run promotions for testimonials — we just do the work right.
"I contacted THUNDER Pro Construction for a roof repair, and they exceeded all of my expectations. Diego and his team are simply the best! Th…"
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Miguel Vera
Google Review · 3 months ago
"THUNDER Pro Construction is hands down the best company for roof replacement! Diego and his team were reliable, professional, and paid atten…"
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Yordy Vera
Google Review · 3 months ago
"We are beyond happy with our new deck! THUNDER Pro Construction LLC exceeded all of our expectations. Diego and his team were knowledgeable,…"
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Nayeli vera
Google Review · 3 months ago
"Thunder Pro Construction did an outstanding job from start to finish. The crew was professional, arrived on time, kept everything clean, and…"
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Cristian Villavicencio
Google Review · 3 months ago
"Excellent workmanship repairing and replacing porch columns"
Marlo Barnes
Google Review · in the last week
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QUESTIONS
Common Roof Repair questions in Cornwall, NY
More questions? Call (845) 234-9871 or request an estimate — we don't believe in pressure sales.
How do you fix an ice dam leak in Cornwall?
We repair the damaged shingles and underlayment, extend ice and water shield where it is missing, and check attic ventilation and insulation so the ice dam does not form again.
Should I remove moss from my Cornwall roof?
Yes, but carefully. Moss traps water and lifts shingles. We remove it by hand and replace damaged shingles; pressure washing would cause more harm than good.
How fast can you come out for a roof leak?
Active leaks get priority. When a crew is available we can often inspect and tarp the same day in Orange County.
How much does a roof repair cost?
It depends on the cause — a pipe boot or a few shingles is a small job, while rebuilding chimney flashing takes longer. We give a written price after the inspection, before any work starts.
FREE ESTIMATE — NO OBLIGATION
READY WHEN YOU ARE. SAME-DAY QUOTES AVAILABLE.
Tell us about your roof, your storm damage, your siding job — anything. We'll come out, inspect, and put a written estimate in your hand. No pressure, no games.