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.
Before
After
Before
After
Before
AfterDuraFlex Chimney Cap & Crown in Flushing: What to Know First
We provide independent DuraFlex chimney cap and crown service across Flushing, from inspection to installation, with most jobs completed in a single visit once we’ve sourced the right parts. A new DuraFlex-compatible cap in Flushing typically runs $285 to $560 installed, while crown repair or coating lands between $425 and $980 depending on the damage we find with the camera. Written price before any work starts, always. This page is for DuraFlex owners in Flushing who want specifics, not a sales pitch. Call (516) 240-9191 and we’ll walk you through what you’re actually dealing with.
How DuraFlex Products Fail - and How We Fix Them
DuraFlex makes solid liners and components. But on the cap and crown side, we see the same failure patterns repeat across Flushing homes year after year. Here’s what we actually find:
- DuraFlex stainless caps with rusted base screens. The screen mesh on older DuraFlex caps is galvanized, not stainless, while the cap body itself is stainless. The screen corrodes first, then the corrosion spreads to the seam where the screen meets the cap. In Flushing, salt air from the Long Island Sound accelerates this. We replace the entire cap rather than patch the screen, because patching keeps the seam weak and you’re back in the same spot in three years.
- Crown cracking above DuraFlex flue tiles in attached row homes. Flushing’s older attached housing stock, especially near Flushing Town Hall, shifts with freeze-thaw cycles. The brick expands, the crown doesn’t, and hairline cracks open up. Water gets in, migrates down the flue tile, and rusts the cap’s mounting screws from underneath. You won’t see it from the ground. Our camera shows it immediately. Crown coating with a flexible sealant solves this when caught early; full crown rebuild is needed when spalling has already started, meaning the concrete surface is flaking off in chunks.
- Improperly sized cap that starves the draft. We see DuraFlex caps on Flushing chimneys that were ordered online without measuring. Too small a cap means restricted airflow and smoke backing up into the house in January. Too large means water gets around the edges. We measure the actual flue opening, not the outside of the chimney, before any cap is ordered.
- Multi-flue DuraFlex setups with one cap, not two. Some Flushing homes have two separate flues in one chimney, one for the fireplace and one for the furnace. A single cap spanning both flues is a common install, but if the flues are at different heights, the cap only seals the taller one. The shorter flue breathes rain and debris. We install a multi-flue cap with a raised lip on the shorter flue or two separate caps, whichever actually fits the chimney as it exists.
- OEM vs aftermarket mounting brackets on DuraFlex liners. DuraFlex’s own cap brackets work, but we’ve seen them loosen on Flushing colonials where the liner shifts with weather. We use a heavier-gauge aftermarket bracket when the liner shows movement, and we note it on the written scope. It doesn’t void any DuraFlex liner warranty because the bracket is external hardware, not part of the liner itself.
Our DuraFlex Chimney Cap & Crown Process
Here’s what happens when you call us for DuraFlex cap or crown work in Flushing:
- 1
You call, a person answers. Live phone support runs 24/7. You describe the issue, and we book a window that fits your schedule. A named technician is assigned before we arrive.
- 2
Camera inspection first, before any quote. Clause 4 of the Haven Standard requires a documented photo record on every job. We run the camera down the flue and up at the cap. You see the footage, we tell you what we saw.
- 3
Written scope and price, in your hand. Before any work starts, you get a written price, written scope of work, and written warranty, per Haven Standard Clause 1. No verbal quotes, no “we’ll see once we open it up.”
- 4
Parts decision made with you. We show you the OEM DuraFlex part if that’s the right call, and we tell you when a quality aftermarket part does the same job for less. You approve the part before it’s ordered.
- 5
The work, done by background-checked, uniformed technicians. Cap installation, replacement, crown repair, crown coating, multi-flue setups, custom caps – whichever the scope is, it’s done cleanly and we don’t leave fasteners or old sealant on your roof.
- 6
Post-job documentation and the 365-Day Done Right Promise. You get photos of the completed work. If it’s not done right, we make it right. Stamped on every job.
BeforeAfterWhat DuraFlex Chimney Cap & Crown Costs in Flushing
Here are the ranges we quote on DuraFlex cap and crown work in Flushing. These are real numbers, not bait:
- Basic DuraFlex-compatible stainless cap, single flue: $285 to $430 installed, including the cap, brackets, and sealant.
- Multi-flue cap for two-flue Flushing chimneys: $440 to $560 installed, depending on flue spacing and whether we need a raised lip on the shorter flue.
- Crown coating (minor cracking, no spalling): $425 to $680, including prep, flexible sealant, and photo documentation.
- Full crown rebuild (spalling, missing sections, exposed aggregate): $780 to $980, including form work, new concrete or masonry mix, and cure time.
- Cap replacement on a corroded DuraFlex base screen: $320 to $475, since the cap body usually needs to come off whole.
What moves the price: roof pitch and access, whether your flue is an unusual size, and whether the crown damage extends into the flue tile. You’ll see the camera footage before you approve anything. Call (516) 240-9191 for a written estimate, free of charge, no obligation.
Why Flushing Homeowners Call Level Two Chimney Flushing for DuraFlex Work
Corrine Halstead grew up in Queens and has spent the better part of two decades doing chimney work across the borough, including older attached homes near the Flushing Town Hall district where the brick and mortar tell a story all their own. She trained at LaGuardia Community College, where she picked up the diagnostic side of the trade. What she’s known for is showing customers the camera footage before she quotes anything, so the price on paper matches what’s actually in the flue.
That’s how we work here. We’re an independent DuraFlex service provider, which means we’re not tied to just one manufacturer’s catalog. When a HeatShield resurfacing or Gelco repair product does the job better than an OEM DuraFlex part, we tell you that, in writing, with a price for each option. Our 38,000+ inspections since 2009 all have one thing in common: a written price before work started and a documented record when it was done. If a competitor’s written estimate has you unsure, bring it to us for a Free Second Opinion, no charge. The camera doesn’t negotiate - it just shows you what’s there.
FAQs
No. DuraFlex liner warranties cover the liner itself, not external hardware like caps and brackets. Replacing or upgrading a cap on a DuraFlex liner does not void the liner warranty. We recommend confirming your specific liner’s warranty terms before any cap work, and we’ll note the cap replacement in your job documentation so you have a clean record.
Most standard DuraFlex cap models and compatible aftermarket parts are available to us within one to three business days in Flushing. We keep common sizes in stock. If a cap is a custom size or a discontinued model, it may take up to two weeks, and we’ll tell you that before you agree to anything. There’s no deposit on parts until you’ve approved the written scope. Call (516) 240-9191 and we’ll check availability on the spot.
In nearly every case we see in Flushing, the cap needs replacement, not repair. The screen is a weak point, and once it corrodes, the seam is compromised. You can patch it, but you’ll get maybe two years before the rust spreads again. A new cap runs $285 to $475 installed, which is less than what we charge for a follow-up visit plus another patch job.
It depends on what the camera shows. Hairline cracks in the crown can be coated and sealed for $425 to $680, and that’s a job that can be done before winter. If you see spalling, which means the concrete surface is flaking off in chunks, waiting just means more water penetration and a bigger rebuild later. We’ll tell you honestly if it can wait. Call (516) 240-9191 and we’ll look at the footage together.
A standard DuraFlex cap fits common flue sizes and shapes. A custom cap is made when your flue is non-standard, which happens often in Flushing’s older homes where flue tiles were laid by hand decades ago and don’t match modern sizing charts. Custom caps run higher than the ranges above, and we’ll give you the exact number in the written scope before you approve anything.
If you own a DuraFlex chimney system in Flushing and need honest cap or crown work, call (516) 240-9191. A person answers. We’ll schedule the camera inspection, give you a written price before any work starts, and you’ll have photos of everything when we’re done.
Written by Corrine Halstead, Owner, Level Two Chimney Flushing at Level Two Chimney Flushing, serving Flushing and nearby areas.