A Hearthstone company - serving Hicksville, NY

Gelco Chimney Cap & Crown Nationwide

Every visit starts with

Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed

Worth knowing

Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.

Styles & brands we work with

Sweep & inspection
Sweep & inspection
Caps & crowns
Caps & crowns
Flue relining
Flue relining
Masonry repair
Masonry repair
Gas fireplace service
Gas fireplace service

Before & after – our own jobs

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Gelco Chimney Cap & Crown in Hicksville: What to Know First

We provide independent Gelco chimney cap and crown service in Hicksville, with most Gelco cap replacements and crown repairs completed in a single visit after our Level-2 camera inspection. As an independent Gelco service provider, we stock the Gelco Ultra-Pro series and multi-flue models most common in Nassau County split-levels and Cape Cods, and we quote upfront so the number on the estimate matches the number on the invoice. Typical Gelco cap installation runs $340-$620; crown repair or coating runs $480-$1,200 depending on access and extent. If you are seeing rust streaks down your brick, hearing wildlife in the flue, or noticing mortar crumbs in your firebox, your Gelco cap or crown is telling you something. Call (516) 259-3797 - a live person answers, 24 hours a day.

Call (516) 259-3797

How Gelco Products Fail - and How We Fix Them

  • Gelco Ultra-Pro single-flue caps (Model 8″-13″ round): The 304 stainless mesh on these corrodes faster than expected in Hicksville’s salt-air environment, especially within two miles of the LIRR corridor where winter road salt lingers in the soil. We see the mesh detach at the weld points after 6-10 years, not the 15-20 years the homeowner expected. We replace with Gelco OEM mesh or upgrade to 316L marine-grade equivalent when the flue gas chemistry warrants it.
  • Gelco multi-flue caps (Models M-8 through M-16): The cross-break lid design pools water if the chimney crown beneath it has settled even 1/8 inch out of level. In Hicksville’s freeze-thaw cycles, that pooled water works its way under the cap skirt and accelerates crown spalling. We remove the cap, re-pitch or repair the crown, then reinstall with a bead of high-temp silicone at the skirt edge - not the factory gasket alone.
  • Gelco band-around-brick mounting systems: The stainless band loosens as the chimney shifts through seasonal cycles, particularly on 1950s and 60s Hicksville ranches with shallow footings. A loose band lets the cap rattle in wind, and the noise is usually what gets the homeowner’s attention. We re-secure with expansion anchors into the crown or switch to a flue-top mount if the flue tile is sound.
  • Gelco crown coat compatibility failures: Homeowners sometimes apply generic elastomeric crown sealers over Gelco’s factory crown coat, not realizing Gelco’s formulation is silane-siloxane based and incompatible with acrylic latex products. The result is alligatoring within two seasons. We strip the incompatible material and reapply Gelco CrownSeal or HeatShield CrownCoat, which bond properly to the original substrate.
  • Gelco wind-load failures on raised flues: The Ultra-Pro and multi-flue models are rated to 85 mph, but Hicksville’s nor’easters and summer thunderstorm downdrafts can exceed localized loads on chimneys above the tree line, particularly in the areas north of Old Country Road. We inspect anchor points after every significant weather event and upgrade to through-bolt mounting where the flue tile structure allows.

Our Gelco Chimney Cap & Crown Process

  1. 1
    Call and schedule: A live person answers, day or night. We book a window that works for you, not a four-hour guess.
  2. 2
    Level-2 camera inspection: Our technician runs a camera the full flue length before touching the cap or crown. You see the photos. We explain what we see in plain English - no jargon, no pressure.
  3. 3
    Parts decision: If your Gelco cap is repairable, we say so. If replacement is honest, we quote Gelco OEM or a quality aftermarket equivalent from our Olympia Chimney or Famco stock, with the trade-offs explained. The choice is yours.
  4. 4
    The repair or installation: Background-checked, uniformed technicians complete most Gelco cap and crown jobs in a single visit. Crown work cures overnight; we schedule the return if a second trip is needed.
  5. 5
    Post-job test and documentation: We run the camera again, show you the after photos, and leave a written report with our plain-English verdict.
  6. 6
    The 90-Day Done Right Promise: In writing, no arguing. If it is not right, we come back. Governed by our K.E.Y.S. code: Krafted right, Every time, Your home first, Standing behind it.

What Gelco Chimney Cap & Crown Costs in Hicksville

Service Typical Range What Moves the Price
Gelco single-flue cap replacement $340-$520 Flue size, mesh grade (304 vs. 316L), access height
Gelco multi-flue cap replacement $480-$720 Chimney dimensions, band vs. flue-top mount
Crown repair (localized) $480-$780 Area of spalling, depth of cracks, need for formwork
Crown coating (full resurfacing) $780-$1,200 Chimney footprint, number of flues, material (Gelco CrownSeal vs. HeatShield)
Custom cap (non-standard flue or chase) $620-$1,100 Sheet metal gauge, copper vs. stainless, wind-load engineering

Steep roofs, slate or tile that cannot bear foot traffic, and chimneys above 35 feet add labor time. We price this upfront, not as a surprise. Every estimate is free - call (516) 259-3797 for an exact quote.

Why Hicksville Homeowners Call Hearthstone Chimney Co. for Gelco Work

We have been on roofs in Hicksville since 1984. Russell Haines and our crew know the difference between a Gelco Ultra-Pro band mount and a flue-top mount before we climb the ladder, and we know which 1960s Levitt-era chimneys have the shallow crowns that crack predictably. Our Level-2 inspections end with photos you can see and a plain-English verdict - documented like an engineer, explained like a craftsman. If your Gelco part is discontinued, we source from our Olympia Chimney, Famco, or Copperfield inventory rather than sell you a full system you do not need. The 90-Day Done Right Promise is in writing, no arguing. We plan to be in Hicksville in thirty more years, so we act accordingly.

FAQs

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