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 Huntington: What to Know First
We provide independent HeatShield chimney cap and crown service in Huntington, with most jobs completed in a single visit and upfront pricing agreed before we start. A standard HeatShield cap replacement or crown coating runs between $280 and $650 depending on the series and access, and we back every job with our 90-Day Done Right Promise in writing. This page is for homeowners who already have a HeatShield liner or component in their chimney and need the cap or crown addressed by technicians who know the product line without upselling what isn’t broken. Call (631) 776-4075 for a free estimate.
How HeatShield Products Fail - and How We Fix Them
- HeatShield Cerfractory Foam liner systems with corroded galvanized caps. The original cap that shipped with many Cerfractory Foam installations in the 2000s was galvanized steel, not stainless. In Huntington’s salt-air environment, especially within a mile of the North Shore, we’ve seen these caps rust through in 7 to 10 years while the liner itself is still sound. We replace with a 304 or 316 stainless cap matched to the flue diameter, preserving the liner warranty by not disturbing the foam seal.
- HeatShield UL 1777-listed relining jobs with improperly seated storm collars. The collar that bridges cap to flue tile often loosens after freeze-thaw cycles common to Huntington winters. Water runs down the outside of the liner and pools at the smoke shelf. We remove the cap, reseat the collar with high-temp silicone rated to 600°F, and install a drip-edge cap to redirect runoff.
- HeatShield Resurfacing systems with cracked concrete crowns. The resurfacing liner is only as protected as the crown above it. When the crown spalls or develops hairline cracks, water reaches the original clay flue and the new liner alike. We assess whether the crown can be coated with HeatShield’s CrownCoat product or needs full rebuild, and we document the condition with camera photos you can see before you decide.
- Multi-flue HeatShield installations with undersized universal caps. Some installers used single-size caps across multiple flues to save time, leaving gaps where driving rain enters. In homes near Cold Spring Harbor and along West Neck Road, we’ve found this causes efflorescence on the firebox back wall. We measure each flue independently and source either a custom multi-flue cap or individual caps with proper clearance.
- HeatShield joint repair systems with cap mesh clogged by creosote flakes. The mesh on standard HeatShield caps is 3/4-inch, which catches creosote shed by joint-repaired flues during first fires. The mesh cakes shut and traps combustion gases. We clean the mesh or upgrade to a 5/8-inch mesh cap with a removable hood for easier maintenance, and we show you the difference on camera.
Our HeatShield Chimney Cap & Crown Process
- 1
Call and schedule. A live person answers, 24 hours a day. We ask the age of your HeatShield installation, the symptoms you’ve noticed, and whether you have any paperwork from the original job.
- 2
Level-2 camera inspection. Our technician runs a camera the full length of the flue, photographs the cap and crown from top and bottom, and gives you a plain-English verdict on what’s actually wrong.
- 3
Parts decision. We source OEM HeatShield components when they’re the right fit and available. When lead times stretch or the OEM part has a known weakness, we specify a quality aftermarket equivalent from Gelco or Famco and explain the trade-off before you approve.
- 4
The repair. Background-checked, uniformed techs complete most cap and crown jobs in one visit. Crown coatings cure in 4 to 6 hours; full crown rebuilds may need a return trip for weather protection.
- 5
Post-repair test and documentation. We run the camera again, verify draft and cap fit, and leave you with photos, a written invoice matching the upfront estimate, and our 90-Day Done Right Promise.
- 6
Cleanup and follow-up. We haul away old material, lay drop cloths from truck to roofline, and check in by phone within two weeks to confirm everything is performing.
What HeatShield Chimney Cap & Crown Costs in Huntington
| Service | Typical Range | What Moves the Price |
|---|---|---|
| HeatShield cap replacement (single flue, standard access) | $280 - $420 | Stainless grade (304 vs. 316), flue diameter, roof pitch |
| HeatShield multi-flue cap or custom cap | $450 - $650 | Sheet metal gauge, mesh size, wind-rating for coastal exposure |
| Crown coating (HeatShield CrownCoat or equivalent) | $320 - $480 | Crown square footage, crack depth, number of coats needed |
| Full crown rebuild with new cap | $1,200 - $2,400 | Crown dimensions, scaffold or ladder access, liner protection during pour |
Steep roofs, buried chimneys behind dormers, or matching historical masonry on older Huntington homes add labor time. We give you the full number before booking, and that number is the number on the invoice. Call (631) 776-4075 for a free estimate.
Why Huntington Homeowners Call Hearthstone Chimney Co. for HeatShield Work
We’ve been answering the phone with a live person for over 42 years, and Russell Haines has spent the last decade reading fireboxes and flue liners along West Neck Road and through the older neighborhoods near Cold Spring Harbor. He knows which HeatShield installations were done by which local outfits, what corners got cut, and how to fix them without starting over.
Our 90-Day Done Right Promise means if it’s not right, we come back. No paperwork to find, no arguing. We also work with DuraFlex and Gelco systems, so if your HeatShield component has been discontinued or a different brand offers a better solution for your specific chimney, we’ll tell you straight and price both options.
Photos you can see. A plain-English verdict. A square deal. That’s the job done right.
FAQs
No, if the work is done by a technician who understands the system boundaries. As an independent HeatShield service provider, we document every repair with photos and use parts that interface correctly with your existing liner. We do not disturb the cerfractory foam seal or the UL 1777 listing unless the repair explicitly requires it, and we explain that beforehand.
A properly installed stainless steel HeatShield cap lasts 15 to 20 years in most of Huntington, but we’ve seen galvanized originals fail in under 10 years within a mile of the salt air. The difference is the material grade and whether the mesh gets cleaned during annual inspections. Call (631) 776-4075 and we’ll check yours.
We source OEM when lead times are reasonable and the part design has held up. For caps on older Cerfractory Foam systems, we often recommend a quality aftermarket stainless cap from Gelco or Famco with better salt-air resistance. We show you both options and the price difference before you decide.
We camera-inspect from inside and photograph from the roof. Hairline cracks with intact structural concrete get CrownCoat. Spalling deeper than half an inch, exposed rebar, or a crown that slopes toward the flue needs rebuild. We show you the photos and explain which category you’re in.
Most cap replacements and crown coatings are done in a single visit once scheduled. Full rebuilds require dry weather for the concrete cure, so we watch the forecast and book accordingly. A clean chimney isn’t a luxury - it’s just the job done right.
Ready to get your HeatShield cap or crown sorted? Call (631) 776-4075 for a free estimate. We’ll answer live, schedule at your convenience, and give you upfront pricing with no surprises on the bill.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Huntington and nearby areas.




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