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.





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AfterDuraFlex Chimney Cap & Crown in Brick: What to Know First
As an independent DuraFlex service provider, Hearthstone Chimney Co. handles chimney cap installation, crown repair, and full replacement for DuraFlex systems in Brick, New Jersey. Most DuraFlex cap and crown jobs we book in Brick are completed in a single visit after a Level-2 camera inspection, with upfront pricing agreed before any work begins. We do not guess at what your chimney needs, and we do not sell repairs that the camera cannot show you.
This page is for Brick homeowners who already have a DuraFlex liner or cap and need honest answers about what is actually wrong, what it will cost, and whether the work can wait. If that sounds like your situation, call (609) 657-3371. A live person answers, any hour of any day.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex DW and DuraFlex SW factory-built caps loosen at the storm collar after five to seven winters in Brick. The salt air off Barnegat Bay accelerates galvanic corrosion where the collar meets the flue tile. We see this regularly on homes near Windward Beach Park. Our fix: remove the compromised cap, inspect the flue tile for spalling, and install a new DuraFlex-compatible cap with a stainless storm collar and proper sealant rated for freeze-thaw cycling.
- DuraFlex Pro series multi-flue caps collect creosote at the baffle junction because the factory mesh spacing is tighter than Gelco or Olympia equivalents. The cap itself is sound, but the restricted airflow causes backdrafting in shallow fireboxes common in 1970s Brick ranches. We clean the baffle assembly in place when possible, or source an aftermarket multi-flue cap with wider mesh if the homeowner burns regularly.
- DuraFlex SW (stainless wrap) crowns crack at the pour joint where the factory crown meets field-built masonry. This is not a liner failure; it is a cap-to-crown interface problem. Water wicks through the hairline crack, freezes, and lifts the crown edge. We repair with CrownCoat or a poured crown rebuild depending on depth, always extending the new crown two inches past the chimney shoulder so water sheds clear.
- DuraFlex DW galvanized caps in Brick’s inland neighborhoods (west of the parkway) fail from the inside out due to acidic condensation. These caps look fine from the ground but are paper-thin at the lid when we tap them. We replace with 304 or 316 stainless depending on the flue gas temperature, and we document the before condition with photos so the homeowner sees why replacement was necessary.
- DuraFlex Pro custom caps with integrated dampers seize in the open position after a decade of beach-season humidity. The damper chain rusts, and the homeowner does not notice until the heating bill jumps. We disassemble the cap, free or replace the damper mechanism, and treat the interior with a dry lubricant that will not attract soot. If the cap shell is still solid, this repair saves the cost of full replacement.
Our DuraFlex Chimney Cap & Crown Process
- 1
Call and schedule. A live person answers at (609) 657-3371, any time. We book a window that works for you. No app, no callback tag.
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Level-2 camera inspection. Our technician runs a camera the full length of the flue, photographs the cap, crown, and flue interior, and explains what we see in plain English. You get the photos. Russell Haines still reviews every inspection report before we quote - old habit, and he is not interested in breaking it.
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Parts decision: OEM DuraFlex or quality aftermarket. If your cap is under warranty and the failure is a known defect, we source OEM. If the OEM part is discontinued or the warranty has lapsed, we match a Gelco, Olympia, or Famco equivalent that fits the DuraFlex flue profile without voiding any remaining liner warranty. We tell you which route we recommend and why.
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The repair, done right. Background-checked, uniformed techs complete most DuraFlex cap and crown jobs in one visit. Crown work cures overnight when poured, so we may return the next morning to seal and photograph the finished crown.
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Test and document. We run a smoke test or draft test to confirm the new cap or crown performs. Photos of the completed work go in your file. The 90-Day Done Right Promise goes in writing.
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Cleanup and close. We leave the roof, yard, and firebox as clean as we found them. The invoice matches the estimate. No surprises.
What DuraFlex Chimney Cap & Crown Costs in Brick
| Service | Typical Range in Brick |
|---|---|
| DuraFlex cap replacement (single flue, stainless) | $280 - $450 |
| DuraFlex multi-flue cap replacement | $480 - $720 |
| Crown repair with CrownCoat (minor cracking) | $340 - $520 |
| Full crown rebuild (poured concrete, extended drip edge) | $890 - $1,400 |
| Cap + crown combined job | $1,100 - $1,850 |
| Seized damper repair (DuraFlex Pro integrated cap) | $180 - $290 |
What moves the price: roof pitch and access, whether the flue tile needs repair before the new cap seats, and whether we are matching a discontinued DuraFlex part with a custom-fabricated alternative. We give you the full number before we start. Call (609) 657-3371 for a free estimate - we will come look, camera and all, and tell you exactly where you stand.
Why Brick Homeowners Call Hearthstone Chimney Co. for DuraFlex Work
We have been working chimneys across Brick for over 42 years, including plenty of calls out near Windward Beach Park where the salt air does a number on mortar over time. Find what’s wrong, fix it properly, stand behind it - that’s the whole job.
Our 90-Day Done Right Promise means if it is not right, we come back. In writing, no arguing. Our Level-2 camera inspections end with photos you can see and a plain-English verdict - documented like an engineer, explained like a craftsman. When a DuraFlex part is no longer available, we draw on professional-grade HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield lines to build a repair that lasts. Background-checked, uniformed technicians. Most jobs in a single visit. A square deal: no surprises on the bill.
FAQs
No. As an independent DuraFlex service provider, we use OEM parts when warranty coverage applies and document the work so your warranty stays intact. Using a manufacturer-authorized dealer is not required to maintain warranty coverage on chimney caps and crowns. If you are unsure about your warranty status, call (609) 657-3371 and we will help you sort it out.
Replacement is necessary when the cap metal is perforated, the mesh is separating from the frame, or the storm collar is cracked through. Repair is possible for seized dampers, loose fasteners, or surface rust on an otherwise sound cap. Our camera inspection shows you which category you are in. Call for a free estimate.
Most common DuraFlex DW and SW caps are in regional distribution and arrive within two to three business days. Discontinued Pro series caps or custom sizes require fabrication, typically five to seven days. We will tell you the lead time before you commit, and we will not leave your flue open to weather while we wait.
Every year, before burning season. Brick’s freeze-thaw cycles and coastal humidity age metal faster than inland climates. A cap that looked fine last October can be rusted through by March. Our $89 Seasonal Tune-Up includes cap, crown, and flue inspection - a small price against a chimney fire or water damage.
Water enters the flue, damages the DuraFlex liner from the outside, and can reach the firebox and surrounding framing. In Brick, we see accelerated deterioration in homes within a mile of the water. The repair does not get cheaper with waiting. Call (609) 657-3371 for a free estimate and camera inspection.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Brick and nearby areas.