Chimney Caps & Damper Installation in Monsey & 30 miles around
The cheapest part of your chimney prevents the most expensive repairs.
What this service actually is
An open flue is a funnel pointed at your living room. Rain, snow, leaves, squirrels and birds all take the invitation. A stainless steel cap with mesh sides costs a fraction of what water damage costs, and a top-sealing damper stops you from heating the sky all winter.
What you get
- Stainless and copper caps built to survive Hudson Valley winters
- Spark arrestor mesh keeps embers off your roof and animals out of your flue
- Multi-flue caps that cover an entire crown in one clean piece
- Top-sealing dampers that cut heating loss dramatically vs. a throat damper
- Custom fabrication when your flue is an odd size or shape
How we do it
1. Measure at the flue
Flue tiles vary more than people expect. We measure on the roof rather than ordering a "close enough" cap that blows off in a nor'easter.
2. Install and secure
Stainless fasteners, correct clearance above the flue for draft, and sealant only where it belongs.
3. Confirm the draft
We check that the cap does not choke the draft, then photograph the finished install for your records.
Signs you need chimney caps
If any of these sound familiar, it is worth a call. There is no charge to ask.
- You can see daylight or rain coming straight down the flue
- Scratching, chirping or flapping sounds inside the chimney
- Rust on the damper or water in the firebox after storms
- Your cap is dented, rusted through or missing entirely
- A cold draft pouring into the room even with the damper closed
What it costs
Chimney Caps & Damper Installation typically runs $225 – $750 for a standard single-family home in our service area, and takes about 1–2 hours. The variables that move that number are roof access, flue height, how many flues share the stack, and condition. You get a flat written quote before any work starts — see the full pricing page for every service we offer.
Where we do it
We provide chimney caps throughout our 30-mile service radius from Monsey: all of Rockland County, southern Orange County, western Westchester, and Bergen and Passaic Counties in New Jersey. That includes Monsey, Spring Valley, Suffern, New City, Nanuet, Pearl River, Nyack, West Nyack and 89 more towns.
- Monsey, NY
- Spring Valley, NY
- Suffern, NY
- New City, NY
- Nanuet, NY
- Pearl River, NY
- Nyack, NY
- West Nyack, NY
- Pomona, NY
- Chestnut Ridge, NY
- Airmont, NY
- Montebello, NY
- Wesley Hills, NY
- New Square, NY
- Kaser, NY
- Hillburn, NY
“Our house is from 1898 and I was terrified someone would slap modern mortar on it. They matched the color and the mix. You genuinely cannot tell where the new work starts.”
Why homeowners pick Hero
We are a family company working out of Monsey, not a national franchise routing your call to a dispatcher three states away. That means the person who quotes your job is on the roof doing it, the price does not change halfway through, and if something is not right afterward we are twenty minutes away.
Every visit includes photo documentation. Every recommendation comes with an explanation of what happens if you wait, so you can make the call on your own timeline instead of ours.
Chimney Caps — common questions
Do I really need a chimney cap?
It is the single highest-return item on a chimney. Rainwater in an unlined or aging flue causes liner cracking, damper rust, firebox damage and interior staining that costs thousands. A cap is a few hundred dollars.
What is a top-sealing damper?
A damper that sits at the top of the flue with a silicone gasket, sealing the chimney like a lid instead of like a rusty metal flap. It stops heat loss and downdrafts far more effectively than a throat damper.
Can you get an animal out first?
Yes — we do humane removal of birds, squirrels and raccoons, clear the nesting debris, then cap it so it does not happen again.
How long do caps last?
A quality stainless cap will typically outlast the roof under it. Galvanized caps rust out in a handful of winters here, which is why we do not install them.
Often booked together
Animal & Bird Nest Removal
Humane removal, full cleanout, then a cap so it never happens again.
Learn moreChimney Waterproofing & Leak Repair
Find the actual leak, fix the actual leak. No guessing, no caulk-and-pray.
Learn moreChimney Crown Repair & Replacement
The concrete slab on top is your chimney's roof. When it cracks, everything below it starts to rot.
Learn more Most bookedChimney Sweeping & Cleaning
A dust-free, top-to-bottom sweep that takes the fire risk out of your fireplace.
Learn more
Need chimney caps?
Free quotes, flat pricing and same-week appointments across all 97 towns we serve.