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CHIMNEYS · CORNWALL, NY
Chimneys in Cornwall, NY.
Cornwall, NY chimney repairs — moss-damaged brick, crowns, caps and flashing on shaded, wooded-lot homes and steep village roofs.
Why hire us for chimneys in Cornwall?
Shade and moisture are hard on Cornwall chimneys. On wooded lots and north-facing roofs, brick stays damp, moss roots in the mortar joints and freeze-thaw cycles break the face off bricks. Leaves and needles also build up behind chimneys on steep roofs, holding water against the flashing. We repoint failing joints, rebuild damaged courses, install new crowns with drip edges and screened caps, and replace flashing with stainless step and counter-flashing. Where debris collects, a cricket keeps water and leaves moving.
What we see on Cornwall chimneys jobs
- Moss-damaged mortar joints are repointed and spalled brick is replaced.
- Crickets keep leaves and needles from piling up behind chimneys on steep roofs.
- Screened caps keep animals and debris out of flues.
Neighborhoods we serve in Cornwall: Cornwall-on-Hudson, Mountainville, Firthcliffe, Angry Orchard corridor, Route 9W area, Woodland Avenue district.
LOCAL PROJECTS
View All →Chimneys work near Cornwall, NY
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Stone chimney base with metal flashing
03 / 15
Stone chimney renovation with exposed underlayment
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 Chimneys questions in Cornwall, NY
More questions? Call (845) 234-9871 or request an estimate — we don't believe in pressure sales.
Why is moss growing on my chimney?
Shade and constant moisture let moss root in the mortar joints, which speeds up deterioration. We repoint the joints and fix the crown and cap so the brick can dry out.
Do you do chimney repairs on steep roofs?
Yes. Our crew uses roof jacks and fall protection on steep pitches and protects your landscaping below.
Why do chimneys leak?
Most chimney leaks come from a failed crown, cap, or counter-flashing — not the roof field itself. We fix the source instead of smearing tar on the problem.
Do I need a liner?
If flue tiles are cracked or the fireplace or appliance vent is unsafe, a stainless liner is often the right fix without rebuilding exterior brick.
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.