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
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AfterGelco Chimney Cleaning & Sweep in Hicksville: What to Know First
We provide independent Gelco chimney cleaning and sweep services in Hicksville, with most jobs completed in a single visit and upfront pricing agreed before we start. A standard Gelco annual sweep and Level 1 inspection runs $89 during our seasonal tune-up period, while Level 2 camera inspections for older Gelco pre-fab systems typically fall between $225 and $325. We’re not affiliated with or authorized by Gelco - we’re an independent service provider who has worked on enough of their units to know where they hide problems.
This page is for Hicksville homeowners running a Gelco fireplace insert, pre-fab chimney system, or stainless steel liner who need honest answers about what their sweep should include, what it costs, and whether anything actually needs fixing. If that’s you, call (516) 259-3797. A live person answers, 24 hours a day.
How Gelco Products Fail - and How We Fix Them
- Gelco UltraPro pre-fab chimney sections develop creosote packing in the slip joints where the telescoping sections meet, especially in Hicksville’s freeze-thaw cycles. The joint gap that allows thermal expansion also traps condensed flue gases. We break down the joint, mechanically remove the glazed creosote, and reseal with high-temp sealant rated for the UltraPro’s 2100°F spec - never generic RTV that cooks off in the first season.
- Gelco Model 304 stainless liners in oil-to-gas conversions suffer from chloride stress corrosion at the flex points near the thimble. Hicksville’s older Levitt homes on the south side see this constantly because the original masonry mass shifts with age. We camera-inspect the full flex length, and if the weave is compromised we replace with DuraFlex or HeatShield-compatible sections rather than patching - a liner patch in a gas vent is a CO risk we won’t take.
- Gelco ProCap chase covers pool water at the corners where the drip edge meets the crown. The galvanized version in particular rusts through in 7-10 years in Nassau County’s salt-air environment. We document the rust pattern with photos, and if the underlying chase framing is sound we install a Gelco-compatible replacement in 304 stainless or move to a Copperfield custom-fabricated cap with a proper 2-inch overhang.
- Gelco fireplace insert surrounds leak combustion air when the factory gaskets harden. The insert still “works” - it just works inefficiently and draws room air you already paid to heat. We source OEM Gelco gasket kits when available, or fabricate matching gasket from Famco high-temp material. The fix is a $40 part and two hours of careful disassembly, not a $2,000 insert replacement.
- Gelco direct-vent terminations on exterior walls collect spider webs and leaf litter in the concentric intake/exhaust collar. Hicksville’s mature oak canopy makes this worse on properties near Cantiague Park. We pull the termination, clean the inner and outer passages separately, and test the pressure switch operation before we leave. A blocked intake on a direct-vent unit is a silent CO producer - the chimney doesn’t care what you hoped it was, it shows you what it is.
Our Gelco Chimney Cleaning & Sweep Process
- 1
Call intake. A live person answers, asks for your Gelco model number if you have it, and schedules a window. We confirm our $89 seasonal tune-up rate or discuss symptoms for repair pricing.
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Arrival and protection. Our technician arrives in uniform, lays down floor and furniture protection, and starts with a visual exterior check of the cap, crown, and visible termination.
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Level 1 or Level 2 inspection. Standard sweep gets Level 1: accessible portions, flashlight, mirror, basic tools. Suspected liner damage, real estate transaction, or change of appliance gets Level 2: camera inspection from top and bottom, photos you can see, plain-English verdict.
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Sweep and mechanical cleaning. We use rotary brushes sized to your Gelco flue diameter - 6-inch, 7-inch, or 8-inch - and HEPA vacuum containment. For glazed creosote we apply ACS anti-creosote treatment and mechanically remove it, never leaving chemical residue.
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Parts decision and documentation. If we find a failed component, we show you the photo, explain OEM versus quality aftermarket options, and quote upfront. No surprises on the bill.
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Test, cleanup, and guarantee. We run a draft test and functional check, clean our protection, and leave the work area cleaner than we found it. Every job carries our 90-Day Done Right Promise in writing - if it’s not right, we make it right, no arguing.
What Gelco Chimney Cleaning & Sweep Costs in Hicksville
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Seasonal tune-up (Level 1 sweep + inspection) | $89 | Standard rate; no upsell |
| Level 2 camera inspection | $225 - $325 | Number of flues, roof access difficulty, documentation needed for insurance/real estate |
| Creosote removal (light to moderate) | Included in sweep | - |
| Glazed creosote removal (mechanical + chemical) | $150 - $275 additional | Thickness, flue length, number of passes required |
| Gelco cap/crown replacement | $450 - $850 | Stainless vs. copper, chase height, custom fabrication for non-standard footprint |
| Gasket replacement (insert surround) | $180 - $260 | OEM availability vs. custom fabrication |
| Liner section replacement (Gelco-compatible) | $1,200 - $2,400 | Length, diameter, number of offsets, access (basement vs. exterior tear-down) |
We don’t quote liner replacement without camera evidence you can see yourself. And we tell you plainly when work can safely wait a season. Call (516) 259-3797 for an exact quote - estimates are free.
Why Hicksville Homeowners Call Hearthstone Chimney Co. for Gelco Work
We’ve been in Hicksville long enough to know which Gelco units were installed during the 1980s oil conversion boom and which are newer gas retrofits off Jerusalem Avenue. That history matters because the failure patterns differ, and a tech who treats them the same will miss something.
Our 90-Day Done Right Promise means what it says: in writing, no arguing. If we didn’t catch it, we come back. Our background-checked, uniformed technicians carry Gelco-compatible parts and backup from DuraFlex, HeatShield, and Olympia Chimney - we’re not waiting on a single supplier while your burning season slips away. Photos you can see, a plain-English verdict, and a square deal: no surprises on the bill. That’s the Keystone Standard.
FAQs
No. As an independent Gelco service provider, our work does not void your warranty provided we use compatible parts and follow NFPA 211 standards. Gelco’s warranty covers manufacturing defects, not installation or maintenance - and we document our work with photos in case a defect claim ever arises. If you’re unsure about your warranty status, call (516) 259-3797 and we’ll walk you through it.
Common Gelco caps, gaskets, and termination components arrive in 3-5 business days. Specialty liner sections or custom chase covers can take 10-14 days. We stock standard maintenance items for Hicksville’s most common Gelco configurations, so many repairs complete same-visit. We’ll tell you before we order - no surprises on timing or cost.
Replace only if the firebox is cracked, the heat exchanger is compromised, or repair costs exceed 60% of replacement. We camera-inspect the flue path and combustion chamber, show you the photos, and give you both numbers. Many “dead” Gelco inserts just need a new gasket, a thorough cleaning, and a draft adjustment. Call (516) 259-3797 for an honest second opinion - free.
Annually for wood-burning, every two years for gas if the appliance is your primary heat source. Hicksville’s mature tree canopy and coastal humidity accelerate creosote formation in wood units, and we’ve found squirrel nesting in Gelco terminations on properties near Cantiague Park more than once. If you burn more than three cords a year, or notice draft issues or odor, schedule sooner. Call (516) 259-3797 to book.
Glazed creosote becomes harder and more flammable over time. In a Gelco pre-fab system, the clearances to combustibles are engineered tight - a chimney fire in a 2100°F-rated section can still damage surrounding structure through conduction. Gas units that skip inspection risk blocked terminations, CO migration, and corrosion at the flex points. The work can often wait if you’re not burning, but “never checked” is a gamble we don’t recommend. Call (516) 259-3797 for a free estimate.
Written by Russell Haines, Owner & Master Sweep, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Hicksville and nearby areas.