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 Cap & Crown in Hempstead: What to Know First
We provide independent DuraFlex chimney cap and crown service in Hempstead, NY - typically completed in one visit, with upfront pricing before any work begins. Most DuraFlex cap replacements in this area run between $340 and $680 installed, and crown work usually lands between $450 and $950 depending on condition and materials. If your DuraFlex cap is rusted through, lifted by wind, or the crown is cracked and letting water into the flue, that’s exactly the kind of job we handle.
This page is for homeowners in Hempstead who own a home with a DuraFlex chimney system - stainless liners, caps, or crowns - and want straight answers about what fails, what it costs, and what’s worth doing now versus what can wait. Call (516) 963-1068 and you’ll get a live person, often Wendell Pike himself.
Key Takeaways
- DuraFlex makes solid products. Most failures we see in Hempstead come from installation shortcuts, not defects.
- Cap and crown problems are almost always found during a routine sweep - you won’t notice them from the ground.
- We quote a flat price before the work starts. That price is the price on the invoice.
- Every DuraFlex cap or crown job we do carries our 90-Day Done Right Promise in writing.
How DuraFlex Products Fail - and How We Fix Them
DuraFlex builds a good stainless liner system. We’ve installed enough of it over the years to know where it holds up and where it doesn’t. Most of what we see in Hempstead has less to do with the brand and more to do with how it was put in - and what the coastal air does to anything metal on a roof.
- DuraFlex Pro Series caps with failing mesh screens. The Pro series uses a stainless mesh spark arrestor that stands up well, but after a decade of Hempstead winters, the mesh can pull away from the cap frame where it’s crimped. We see this often near Hofstra, where older homes have caps that have never once been inspected. Fix: we replace with a current-series cap and check the flue for signs the screen was letting debris through.
- DuraFlex liner-to-cap connection loosening. Wind loading on Long Island is real. The liner top plate and cap connection can work loose over years of storm season. The symptom is a rattle you hear on windy nights, or worse, the cap leaning. We reseat the connection and, where the top plate shows wear, we replace it with a proper DuraFlex-compatible plate.
- Crown cracking from freeze-thaw cycles. This is the big one in Hempstead. A poured concrete crown - the slab on top of the chimney - cracks over time as water gets in, freezes, and expands. The crown was likely poured before the DuraFlex liner ever went in. We repair or recoat crowns with a flexible sealant made for chimney use. If the crown is too far gone, we rebuild it, then verify the liner is still seated correctly.
- Galvanized cap rust-out on older installations. DuraFlex caps are stainless, but plenty of chimneys in Hempstead have aging galvanized caps that a previous owner bought at a box store and had nailed on. Those rust through in five to seven years near the water. When we see that, we replace with a proper stainless cap that fits the DuraFlex liner diameter.
- Multi-flue caps with improper sizing. A multi-flue cap over two or more flues needs to extend past all of them and be anchored so wind can’t shift it. We’ve pulled down multi-flue caps that were installed with sheet metal screws into the brick. That’s not secure. We anchor correctly, and if the cap doesn’t cover both flues fully, we order the right size instead of making it “good enough.”
Our DuraFlex Chimney Cap & Crown Process
Here’s how a DuraFlex cap or crown job goes with us, from first call to cleanup.
- 1
You call (516) 963-1068. A live person answers and sets a time. We’ll ask what you’re seeing - rust, water, a leaning cap - and give you a rough idea before anyone climbs a ladder.
- 2
Wendell or one of his crew arrives and inspects. We look at the cap, the crown, the flashing, and the top of the liner. If you have a DuraFlex liner, we note the series and condition. We take photos so you can see the problem from the ground, on your own phone if you want.
- 3
We show you what’s wrong and give a flat price. No “we’ll see how it goes.” If the crown can be recoated instead of rebuilt, we’ll tell you that and quote accordingly. If it doesn’t need doing, we’ll tell you that too - that’s a Wendell rule.
- 4
We handle parts the right way. For DuraFlex components, we use genuine DuraFlex caps and connectors when that’s the right call. For crowns, we use a flexible sealant or rebuild mix that handles Nassau County weather. No cutting corners with a cheap box-store cap unless you explicitly want the cheapest fix, and we’ll advise against it.
- 5
We test and clean up. After the cap is on or the crown is sealed, we check the fit, make sure the liner connection is tight, and take a final set of photos. The work area is left the way we found it.
- 6
You get the 90-Day Done Right Promise. In writing. If something isn’t right about the cap or crown work, one call brings us back at no charge.
What DuraFlex Chimney Cap & Crown Costs in Hempstead
Here’s what you can expect to pay in Hempstead for common DuraFlex cap and crown jobs. These are installed prices, not parts-only.
- Standard DuraFlex stainless cap replacement: $340-$520
- Multi-flue cap custom-fit for DuraFlex liners: $520-$840
- Custom cap for unusual Hempstead chimney dimensions: $650-$1,100
- Crown recoat and seal (minor cracking): $450-$650
- Crown rebuild (severe cracking or spalling): $750-$1,250
- Cap plus crown same visit: $700-$1,500 depending on scope
What moves the price: roof pitch and access, whether you have one flue or three, the condition of the brick underneath, and whether scaffolding is needed. We don’t charge a trip fee inside the county, and we’ll give you a flat number before any work starts - no surprises when the invoice arrives. Call (516) 963-1068 for a free estimate.
Why Hempstead Homeowners Call Top Hat Chimney for DuraFlex Work
Top Hat Chimney has been serving Hempstead and the surrounding area since 1999, and Wendell Pike puts his name on every job. We’re a local, owner-operated shop - not a franchise that rolled in last spring with a call center two states away. When you call, you might well get Wendell on the phone. When the crew shows up, they’re background-checked and in uniform, and they’ll give you a real arrival window.
We work with DuraFlex every season, and we service the other brands you may have in your chimney too - HeatShield and Gelco among them. That matters when a cap problem turns out to be a liner problem underneath; we don’t have to hand you off to someone else. And if you have a written estimate from another company, we’ll give you a free second opinion. Wendell has been known to tell people the job can wait - his standing rule is, “If it doesn’t need doing, I’ll tell you.” That’s probably cost him some work over the years. It’s also why people in Hempstead keep calling him back.
FAQs
No. We are an independent DuraFlex service provider and have no affiliation with or authorization from the manufacturer. That said, we install and service DuraFlex liners, caps, and related components regularly and can source genuine DuraFlex parts for compatible repairs.
Every year, during your annual chimney sweep. The coastal air in Nassau County accelerates rust and wear on any metal cap, and wind near the South Shore can loosen connections faster than inland. A cap inspection takes minutes when we’re already on the roof. Call (516) 963-1068 to book a sweep and we’ll check the cap as part of it.
In most cases we recommend replacing a damaged DuraFlex cap rather than patching it. A cap with a rusted base or torn mesh is on its way out, and a patch job on a roof is throwing good money after bad. If the damage is minor, like a slightly bent mesh panel, we may be able to straighten it and buy you a season or two. We’ll show you the damage and let you decide.
We use genuine DuraFlex caps and top plates whenever the liner is a DuraFlex product and the fit needs to be exact. For crowns and some multi-flue caps, a quality aftermarket part may make more sense and cost less - we’ll explain the trade-off in plain English before you decide. No smoke, no pressure. Call (516) 963-1068 and we’ll talk it through.
Most cap and crown jobs are completed in one trip once we’ve seen the chimney. Craftsman-style crowns that need a full rebuild may require a morning of work with proper cure time. We book by schedule, not by season, so fall fill-up is a real thing - calling before October helps. We answer the phone 24/7, so you can also call at night when the wind is howling and that loose cap is keeping you awake. We’ll put you on the books for the soonest open slot.
Contact Top Hat Chimney for DuraFlex Cap & Crown Work in Hempstead
If you own a DuraFlex chimney system in Hempstead and the cap or crown needs attention, call (516) 963-1068. You’ll get a straight answer, a free estimate inside the county, and a flat price before the first tool comes off the truck. We’ve been at this since 1999, and we back every cap and crown job with our 90-Day Done Right Promise. If it doesn’t need doing, Wendell will tell you that, too.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Hempstead and nearby areas.





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