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.
DuraFlex Chimney Repair in Hicksville: What to Know First
We provide independent DuraFlex chimney repair in Hicksville, with most jobs completed in a single visit and upfront pricing that matches the final invoice. A typical DuraFlex repair here runs from $340 for targeted mortar repointing up to $2,800 for a partial rebuild with waterproofing, and we always inspect with a camera before recommending anything. This page is for Hicksville homeowners who already know they have a DuraFlex liner, cap, or component and need a crew that understands how these products age in Nassau County’s freeze-thaw cycle. Call (516) 259-3797 - a live person answers, 24 hours a day.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex SW304 and SW316 flexible liners: These stainless liners show up in Hicksville’s 1950s ranches and split-levels near the LIRR tracks. After 15-20 winters, the corrugations collect acidic condensation that pinholes from the inside out. We pull a Level-2 camera and spot the telltale “orange peel” pitting before it breaches. When we find it, we sleeve with new DuraFlex SW316Ti or, if the budget’s tight and the damage is localized, a quality aftermarket equivalent - always with the homeowner seeing the footage first.
- DuraFlex DSA aluminum chimney caps: The mesh on these caps cakes with creosote faster than galvanized steel, especially in Hicksville’s oak-heavy neighborhoods like Old Country Road and Jerusalem Avenue. We’ve pulled caps where the mesh was 70% blocked, backing smoke into the house. We clean or replace with a DuraFlex DSA-SS stainless cap, or cross-match to Gelco if the flue size calls for it.
- DuraFlex relining tees and connectors: The slip-fit joints on older DuraFlex tee assemblies loosen where the thimble meets the masonry. In Hicksville’s clay-heavy soil, foundation settling cracks the surrounding brick and works the joint. We repoint the thimble area with HeatShield-compatible refractory mortar, then reseat with a fresh DuraFlex tee - never just caulk and pray.
- DuraFlex Pro rigid liner sections: These show up in newer installs, especially in the colonials off Broadway Mall that converted from oil to gas. The rigid sections don’t flex with thermal expansion, so the mortar bed cracks at the crown. We lift the section, rebuild the crown with proper slope and drip edge, and rebed with a flexible refractory pad. Russell Haines has seen this exact failure pattern at least forty times in Hicksville alone.
- DuraFlex chase covers on prefab chimneys: The factory sealant beads dry out in seven to ten years. Water runs down the flue pipe and rusts the collar from the inside. We replace with a custom-fabricated Copperfield chase cover, or source a DuraFlex OEM if the dimensions are standard - and we always reseal with a UV-stable silicone, not the cheap stuff that turns to gum in two seasons.
Our DuraFlex Chimney Repair Process
- 1
Call intake: A live person answers, notes your DuraFlex product line if you know it, and schedules. We don’t do callbacks.
- 2
Level-2 camera inspection: Our tech runs a chimney camera from top to bottom, or bottom to top if the roof pitch is steep. You get the photos and a plain-English verdict before any work is discussed.
- 3
Parts decision: We check DuraFlex OEM availability against quality aftermarket options from our Olympia Chimney and Copperfield stock. If the repair is warranty-sensitive, we explain the trade-off. No surprises.
- 4
The repair: Background-checked, uniformed techs execute the work - repointing, rebuild, liner replacement, or cap install. Most DuraFlex jobs in Hicksville finish in one visit.
- 5
Post-repair test: We run a smoke test or draft gauge check, depending on the repair. The chimney has to perform, not just look right.
- 6
Documentation and guarantee: Photos, invoice, and the 90-Day Done Right Promise in writing. If it’s not right, we come back. No paperwork, no arguing.
What DuraFlex Chimney Repair Costs in Hicksville
| Repair Type | Typical Range | What Moves the Price |
|---|---|---|
| Targeted mortar repointing (local DuraFlex thimble area) | $340 - $680 | Height of work area, scaffold need |
| DuraFlex liner spot repair or localized sleeve | $890 - $1,450 | Length of damaged section, access (basement vs. exterior) |
| DuraFlex cap/chase cover replacement | $420 - $780 | Stainless vs. aluminum, custom fabrication |
| Crown rebuild with DuraFlex Pro rebedding | $1,200 - $1,850 | Crown size, chimney height, waterproofing add-on |
| Partial chimney rebuild with DuraFlex liner reset | $1,800 - $2,800 | Brick matching, liner length, flue count |
Three factors push Hicksville prices higher than the low end: homes with steep pitches near Cantiague Park that need roof brackets, original 1960s brick that’s harder to match, and jobs where the previous repair used incompatible materials we have to remove first. We give you the full number before we start. Call (516) 259-3797 for a free estimate - we’ll come look, camera and all.
Why Hicksville Homeowners Call Hearthstone Chimney Co. for DuraFlex Work
We’ve been in Hicksville chimneys since 1984. That’s long enough to know which houses off Newbridge Road have the same DuraFlex liner from 2003, and which ones had a handyman “repair” that we’ll need to undo. Our 90-Day Done Right Promise means if the mortar cracks or the cap leaks, we come back. In writing, no arguing. Our techs carry DuraFlex, HeatShield, and Gelco parts on the truck, so we’re not ordering and rescheduling while your fireplace sits cold. And when Russell Haines says a chimney can wait another season, it can wait. The chimney doesn’t care what you hoped it was - it shows you what it is.
FAQs
Using an independent DuraFlex service provider like us does not automatically void your warranty, but warranty coverage depends on the original install being documented and the repair using OEM-spec parts. We check your paperwork and advise before touching anything. If warranty preservation is critical, we’ll source DuraFlex OEM and note the serial numbers. Call (516) 259-3797 and we’ll sort it out.
We stock common DuraFlex caps, connectors, and liner sections, and our distributors in Nassau County carry next-day availability for most SW316 and Pro rigid components. Only unusual diameters or discontinued lines require a special order. Most Hicksville DuraFlex repairs finish in a single visit. Call for availability on your specific part.
The camera tells the story. Isolated pitting or a single compromised joint gets a spot repair. Widespread thinning, multiple breaches, or delamination means replacement. We show you the footage and explain both paths with exact pricing. No repair happens without your clear view of the problem. Call (516) 259-3797 to schedule the inspection.
A breached DuraFlex liner or cracked crown lets combustion gases, including carbon monoxide, leak into wall cavities or living space. In Hicksville’s older homes with balloon framing, that migration is faster than you’d think. Creosote also reaches combustible framing more easily. The risk is real, but we don’t scare-sell. If the camera shows it can wait, we’ll say so plainly. Call for the honest verdict.
Yes. We regularly see chimneys with a DuraFlex liner, a Gelco cap, and HeatShield mortar repair from a previous job. Our trucks carry parts and expertise for all six brands we support: DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield. One crew, one visit, one invoice. Call (516) 259-3797 to book.
Written by Russell Haines, Owner & Master Sweep, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Hicksville and nearby areas.





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