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 Flushing: What to Know First
HeatShield chimney cap and crown work in Flushing typically runs $425-$1,850 depending on whether you’re replacing a single-flue cap, repairing a spalled crown, or installing a custom multi-flue cap with a HeatShield-compatible liner termination. We turn most quotes around within 48 hours and complete the work in a single visit when parts are in stock. This page is written for HeatShield owners in Flushing who want straight answers on what fails, what it costs, and whether the repair can safely wait. Call (516) 240-9191 and we’ll schedule a camera-scan inspection with a written price before any work starts.
How HeatShield Products Fail - and How We Fix Them
As an independent HeatShield service provider, we see the same failure patterns repeat across Flushing’s attached colonials and 1920s brick row houses. Here’s what actually goes wrong, by product line and symptom.
- HeatShield CeCure sleeves with delaminated caps. The CeCure line uses a ceramic-fiber sleeve to reinforce a deteriorated flue, but the original crown above it is often the weak point. When the crown’s wash slope is too flat or the expansion joint was never cut, water pools at the sleeve termination. We find this most often on older Flushing homes where the crown was poured decades before the sleeve went in. The fix: we cut a proper drip edge, re-slope the crown, and install a cap that sheds water away from the CeCure collar.
- HeatShield joint failure at the flue termination. On the HeatShield 360 and HeatShield polyurethane lines, the joint where the liner meets the cap base is a known stress point. Flushing’s freeze-thaw cycles, especially on north-facing chimneys near Kissena Park, work that joint loose within three to five years. You’ll see rust staining below the cap or feel a wiggle when the cap is pushed. We replace the cap base and re-secure with a high-temp silicone rated for direct flue contact.
- Corroded cap flanges on HeatShield-compatible stainless kits. Aftermarket caps sold as “HeatShield-compatible” often use thinner gauge stainless than HeatShield’s own specs. In Flushing’s salt-air proximity to the Long Island Sound, those flanges pit within two seasons. We source caps through Haven’s buying network, including HeatShield, Copperfield, and Olympia Chimney, and we check the gauge before we quote.
- Crown spalling above HeatShield liner installations. When a liner was installed without addressing the crown, the old crown keeps shedding. Spalling is the technical term for the flaking, chipping surface you see when mortar has absorbed too much water and is breaking apart in layers. We see this on HeatShield jobs throughout the Flushing Town Hall district, where the original crowns date to the 1930s. We repair with a proper crown coat system or full re-pour when the crown has lost more than 30 percent of its surface.
- Multi-flue cap fitment errors. Flushing’s older attached homes often have dual flues at different heights. A multi-flue cap that doesn’t account for that offset leaves one flue exposed. We measure both terminations to the quarter inch before ordering, which is why our multi-flue cap jobs on HeatShield systems take a little longer to quote but fit the first time.
Our HeatShield Chimney Cap & Crown Process

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You call (516) 240-9191. A live person answers, not a voicemail. We schedule the visit and assign a named technician to your job.
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Camera-scan inspection. We run a camera down the flue and document the crown, cap, and top three feet of liner. Per Clause 4 of the Haven Standard, you get the photo record regardless of whether you hire us for the repair.
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Written scope and price. We tell you what the camera found, what it costs, and what happens if you leave it alone, in that order. The price is printed before anyone touches a tool.
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Parts decision. We recommend OEM HeatShield parts when the warranty is active and the part is available. When an OEM cap is discontinued or six weeks out, we specify an aftermarket equivalent from Copperfield or Olympia and note the gauge and warranty in writing.
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Repair and test. We complete the cap or crown work, then run a draft test and a final camera pass to confirm the termination is sealed and the flue draws correctly.
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Documentation. You walk away with the written scope, the written price, the photo record, and the 365-Day Done Right Promise in writing. If it’s not done right, we make it right.
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AfterWhat HeatShield Chimney Cap & Crown Costs in Flushing
Here are the numbers we quote most often on HeatShield jobs in Flushing. Every quote is written, itemized, and delivered before work begins.
- Single-flue cap replacement (stainless): $425-$680, depending on flue diameter and existing cap condition.
- Multi-flue cap, custom-fit for dual or triple flues: $850-$1,450, including measurement, fabrication, and installation.
- Crown repair with sealant and minor patching: $350-$600 for crowns with limited spalling and intact structure.
- Crown coat system (full surface application): $700-$1,100 applied over a prepared crown with a proper drip edge.
- Full crown re-pour and form: $1,400-$1,850 when the existing crown has lost structural integrity and needs to be removed and recast.
What moves the price: flue count, the amount of crown surface that needs reconstruction, access to the roof in Flushing’s attached-home stock, and whether we’re coordinating with a liner repair. Every estimate is free. Call (516) 240-9191 and we’ll put numbers on paper for your exact chimney.
Why Flushing Homeowners Call Level Two Chimney Flushing for HeatShield Work

Most of our HeatShield calls start the same way: a homeowner had another company look at the chimney, got a verbal price that felt high, and wanted a second set of eyes. We’ve been doing this since 2009, and we’ve inspected more than 38,000 chimneys in that time. Corrine Halstead, who runs our Flushing operation, grew up in Queens and has spent nearly two decades pulling creosote and broken cap bolts off these roofs. She’ll show you the camera footage before she quotes anything, because the price on paper should match what’s actually in the flue. The camera doesn’t negotiate - it just shows you what’s there.
We also carry a multi-brand parts bench. If a HeatShield component is backordered, we can quote an equivalent from DuraFlex or Gelco the same day, in writing, with the same warranty terms. That’s not something every chimney company in Flushing can say.
FAQs
No, replacing a cap does not void a HeatShield liner warranty provided the cap is compatible with the liner termination and installed to spec. We use OEM HeatShield caps when the warranty is active and document the installation with photos so you have a record if a claim ever comes up.
A stainless cap installed correctly on a Flushing chimney lasts 12 to 20 years, though salt air and freeze-thaw cycles near the Sound can shorten that to a decade on exposed roofs. Galvanized caps last 5 to 8 years before rust begins at the seams.
It depends on the percentage of surface loss. If spalling covers less than 30 percent of the crown and the structure is sound, we repair with a crown coat system. Beyond that, a full re-pour is the honest fix, because patching a crumbling crown just creates water channels you can’t see. Call (516) 240-9191 and we’ll camera it and tell you which one you need.
Standard single-flue caps are usually in stock and installed within five to seven business days of the inspection. Custom multi-flue caps for older Flushing row houses take two to three weeks for fabrication and fitment. We give you a date in writing before you commit.
Yes, every cap installation includes a camera-scan inspection of the full flue and a physical inspection of the crown, per Clause 4 of the Haven Standard. We won’t install a cap over a failing crown and call it done, because you’d be sealing water in. We’d rather tell you the crown needs work first and put that in writing.
Call (516) 240-9191 for a free estimate on HeatShield chimney cap and crown work in Flushing. A live person answers, we show you the camera footage, and the price is in writing before anything starts.
Written by Corrine Halstead, Owner, Level Two Chimney Flushing at Level Two Chimney Flushing, serving Flushing and nearby areas.





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