Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
HeatShield Chimney Cap & Crown in Greenwich: What to Know First
We install, replace, and repair chimney caps and crowns on HeatShield-equipped chimneys throughout Greenwich, CT. Most HeatShield cap and crown jobs run between $285 and $1,150 depending on what the camera shows, and we complete the work on the same visit whenever parts are on the truck. Every price is written down before a brush moves, per Haven Standard Clause 1. This page is for Greenwich homeowners who have a HeatShield liner system and need the top of the chimney protected correctly. Call (516) 399-5497 and a live person answers, day or night.
Heads up: we’re an independent HeatShield service provider. We work on HeatShield liners regularly, but we’re not authorized by or affiliated with the manufacturer. What that means for you is simpler footage: we call what we see, and we’re not selling a brand line.
How HeatShield Products Fail - and How We Fix Them
HeatShield makes a solid liner, but the cap and crown above it live in Greenwich weather, and that’s where most problems start. Here are the failure modes we actually see when the camera comes back up.
- Crown spalling above HeatShield Cerfractory liners. The HeatShield Cerfractory system uses a poured ceramic material, which handles heat well but doesn’t flex. When the concrete crown above it spalls and crumbles from freeze-thaw cycles, chunks break off and drop onto the liner collar. In Greenwich winters, that cycle starts in November and repeats through March. We rebuild the crown with a proper bond break and expansion joint, then coat it with an elastomeric crown sealer that moves with the masonry instead of cracking off.
- Rain cap mesh clogging on HeatShield Eco and Premier lines. HeatShield liners move a lot of air when they’re sized right. The cap mesh collects creosote flakes, especially on the Eco line where higher-efficiency burning produces more particulate. We see it most on wood-burning fireplaces in backcountry Greenwich homes that burn seasoned oak. The fix is a cap with removable mesh, or a full replacement if the mesh is dented from prior cleaning attempts. We stock both HeatShield-compatible and quality aftermarket caps in stainless steel.
- Improper flue terminations that leave the liner crown exposed. Some HeatShield installations end with a cap that sits too low or too high, leaving a gap between the liner top and the cap base. Water gets in, sits on the liner collar, and starts corrosion. This is the one we can’t see from the ground, which is why the camera scan is non-negotiable on a HeatShield service call. We reposition or replace the termination and add a storm collar where the original contractor skipped one.
- Multi-flue HeatShield setups with one dead flue. When two liners share one chimney, and one flue is abandoned, the unused flue still needs venting. If it’s sealed, condensation builds and seeps into the adjacent HeatShield liner. We install multi-flue caps that vent both flues, or cap and vent the dead flue separately. This is common in older Greenwich colonials that once had a furnace and a fireplace on the same masonry stack.
- Galvanized-cap corrosion from salt air. Homes within a few miles of Greenwich Point get salt-laden wind. Cheap galvanized caps last about five years before the mesh rusts through and the bracket fails. We replace them with 316 stainless steel, which holds up for decades. If a HeatShield liner is still in good shape, a cap swap is the cheapest money a homeowner in Greenwich can spend to protect it.
Our HeatShield Chimney Cap & Crown Process

Here’s what a HeatShield cap and crown job looks like from the first call to the final photo.
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You call (516) 399-5497 and describe what you’re seeing. Our dispatcher asks a few specific questions: which HeatShield product you have, when it was installed, and whether you have the original paperwork. That paperwork tells us which parts to bring.
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A tech arrives with the right parts on the truck. Corrine Halstead sends out a tech with HeatShield-compatible caps, stainless steel replacement brackets, crown sealer, and backup parts from DuraFlex and Gelco. If your HeatShield liner needs a specific fit, we don’t make a second trip for the part.
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The camera goes down the flue first. Hard rule: we don’t touch a cap or crown without knowing what’s under it. The camera shows us liner condition, joint alignment, and whether the crown crack is cosmetic or structural. That footage is yours to keep, whether or not you approve the work.
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Written scope, written price, written warranty. We hand you the number in writing before we start. If the cap can be cleaned and reset instead of replaced, we say so. If the crown needs a full rebuild, you’ll see the photos that prove it.
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The repair happens on the spot. Cap replacement, crown repair, crown coating, multi-flue work, custom cap fabrication when the flue size is odd. Most jobs wrap the same day.
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You get a photo record, not a handshake. Under Haven Standard Clause 4, every job ends with documented photos of the finished work. Before and after, top and flue interior. We’ve kept that archive since 2009, and it runs on every single job. No exceptions.
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AfterWhat HeatShield Chimney Cap & Crown Costs in Greenwich
Here’s what we write on the quote, based on what we’re actually fixing. These are the common Greenwich scenarios.
| HeatShield Cap & Crown Job | Typical Price Range |
|---|---|
| Stainless steel cap replacement (single flue) | $285 - $475 |
| Multi-flue cap with HeatShield liner fit | $650 - $1,150 |
| Crown crack seal (no rebuild needed) | $340 - $525 |
| Full concrete crown rebuild with elastomeric coating | $1,450 - $2,800 |
| Custom cap fabrication for odd flue sizes | $750 - $1,400 |
What moves the number is access. Chimneys on three-story Greenwich homes with steep roofs cost more because of setup and safety gear. A ground-level chimney off a patio takes an hour. We don’t charge for a second trip when parts are standard, and the estimate is free. Call (516) 399-5497 and Corrine Halstead will write up the exact number before anything gets touched.
Why Greenwich Homeowners Call Level Two Chimney Greenwich for HeatShield Work

Because the camera comes back up, and then we tell you what we saw. Not what we suspect, not what we’d like to sell you. What the footage shows.
We’ve inspected and cleaned over 38,000 chimneys since 2009, every single one with a written price before work started and a documented photo record when it was done. Our techs work on HeatShield liners every season, which means we know how a HeatShield Eco crown joint fails differently than a DuraFlex smooth-wall liner joint. We keep Gelco and DuraFlex parts on the truck as backups, so if your liner has mixed components, we’re not stuck waiting for a shipment.
Every job is backed by the 365-Day Done Right Promise. If it’s not done right, we come back and make it right. That’s not a marketing line. It’s stamped on the paperwork. And if you have a written estimate from another company, bring it. We’ll give you a free second opinion and show you, on the camera, what’s actually needed and what isn’t. The camera doesn’t guess. Neither do we.
FAQs
Typically not. HeatShield’s warranty covers the liner itself, not the cap, crown, or flashing above it. Most cap and crown failures are site-specific: weather exposure, installation errors, or age. Our recommendation for Greenwich homes with HeatShield warranties: get the cap and crown inspected with the camera at the same time as the liner, so you’re not paying for two site visits. Call (516) 399-5497 and we’ll document everything in one pass.
No. HeatShield does not manufacture caps. They make liners. The cap is a separate component, typically sourced from companies like Olympia Chimney, Famco, or Copperfield. What matters is that the cap fits your flue size and is made of 316 stainless steel. Corrine Halstead’s techs match the cap to the flue, not the brand sticker. Call (516) 399-5497 and we’ll specify what your flue actually needs.
If the crown has a hairline crack, we can seal it with an elastomeric crown coating for between $340 and $525. If the crown is spalling, with chunks of concrete missing and rebar exposed, replace it. Here’s the information gain the manufacturer won’t give you: HeatShield Cerfractory liners are cementitious, so when the crown above them spalls, the debris can mix with rain and create a slurry that clogs the liner’s flue tile interface. That’s not in the manual. That’s what the camera shows us in Greenwich chimneys every winter. Call (516) 399-5497 for a free written quote.
Most cap and crown jobs in Greenwich are scheduled within the same week, and we’ll text you when the tech is on the way. Parts are stocked on the trucks, so there’s typically no waiting on shipments. For a replacement cap, the work itself takes under an hour once the tech is on the roof. Call (516) 399-5497 and our live dispatcher will give you a straight answer on the schedule.
Water gets in. Every freeze-thaw cycle widens the crack. In Greenwich, that’s roughly 40 cycles a winter. The water works its way down and sits on top of the HeatShield liner, corroding the collar and eventually seeping into the flue itself. By the time you see water stains on the ceiling, the liner is usually compromised. The fix early costs a few hundred dollars. The fix late is a full liner replacement. That’s why we document what we find, show you the footage, and let you decide with real evidence. Call (516) 399-5497 to schedule a camera inspection.
Written by Corrine Halstead, Owner, Level Two Chimney Greenwich at Level Two Chimney Greenwich, serving Greenwich and nearby areas.





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