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
AfterGelco Fireplace Services in Northport: What to Know First
We provide independent Gelco fireplace services throughout Northport, from routine gas fireplace tune-ups to firebox repairs on wood-burning units. Most Gelco jobs we book are completed in a single visit, with upfront pricing agreed before we start. We don’t sell equipment, so when we recommend a repair, it’s because the camera showed us something that needs fixing, not because we’re trying to move product.
This page is for Northport homeowners who already own a Gelco fireplace, insert, or gas log set and need a technician who knows the difference between a Series 600 damper and a Series 800, or why certain Gelco firebox panels crack the way they do. If that sounds like your situation, call us at (631) 528-2501. A live person answers, 24 hours a day.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
How Gelco Products Fail - and How We Fix Them
- Series 600 gas inserts: pilot assembly carbon fouling. The standing pilot on these units sits in a narrow gallery that collects dust from Northport’s pollen-heavy spring seasons. After eight to twelve years, the pilot orifice gets restricted enough that the flame lifts away from the thermopile. We clean the pilot with a proper orifice drill set, not compressed air that just pushes debris deeper. If the thermopile’s output has dropped below 250 millivolts, we replace it with an OEM Robertshaw unit.
- Series 800 wood-burning fireplaces: refractory panel cracking at the rear corners. Gelco’s original panels for these units were a medium-duty refractory that doesn’t tolerate thermal shock as well as what HeatShield or some aftermarket alternatives offer. The cracks start hairline and widen after a few seasons of Northport’s freeze-thaw cycles. We photograph the damage, show you the progression, and replace with either Gelco OEM panels or HeatShield Cerfractory foam if the damage is widespread enough to warrant it.
- Gelco direct-vent gas fireplaces: failed blower motors. The Fasco motors Gelco used in units from the early 2000s have sleeve bearings that dry out after roughly 10,000 hours of runtime. The symptom is a squeal that gets worse as the fireplace heats up, then silence when the motor seizes. We carry replacement ball-bearing motors that fit the same housing and move more air at lower RPM, so the fix outlasts the original.
- Series 400 vented gas log sets: ember bed degradation and burner port corrosion. The silica embers in these sets break down after five to seven years, and the stainless burner ports develop scale from Long Island’s moderately hard water vapor. The result is yellow, lazy flames where you used to have blue-tipped ones. We replace the ember bed with Gelco-spec material and drill or replace the burner as needed, never just “cleaning” it and calling it good.
- Gelco chimney-top dampers: cable fraying at the spring housing. The galvanized cable on these top-sealing dampers runs through a guide tube that collects condensation, especially in Northport’s humid summers near the harbor. The cable frays where it enters the spring canister, and eventually the damper won’t open fully or seal completely. We replace the cable assembly with a stainless version and lubricate the guide tube with high-temp silicone, which the factory installation often skips.
Our Gelco Fireplace Services Process
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Call and schedule. A live person answers, asks what you’re seeing or hearing, and books a window that works for you. We don’t do “sometime Tuesday” - we give you a two-hour window and call when we’re en route.
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Level-2 camera inspection. Our technician arrives in uniform, lays down floor protection, and runs a camera through the firebox and flue. You see the footage in real time. We document everything with photos and a plain-English verdict: what’s wrong, what’s fine, and what’s worth watching.
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Parts decision. For Gelco units, we check availability on OEM parts first. If Gelco has discontinued a component, we source from our inventory of DuraFlex, HeatShield, and quality aftermarket equivalents that we’ve tested in the field. We explain the trade-off and let you decide.
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The repair. Most Gelco fireplace services are completed in one visit because our trucks carry the common failure parts. We test every safety control - spill switch, thermocouple, pressure switch - and we don’t leave until the unit fires, cycles, and shuts down correctly.
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Cleanup and documentation. We haul away old parts, vacuum the work area, and leave you with a written report, your photos, and our 90-Day Done Right Promise. The estimate you signed is the invoice you pay.
What Gelco Fireplace Services Costs in Northport
| Service | Typical Range |
|---|---|
| Gas fireplace tune-up and safety check | $89-$175 |
| Pilot assembly cleaning or replacement | $180-$340 |
| Blower motor replacement | $320-$580 |
| Refractory panel replacement (per panel) | $240-$450 |
| Firebox repair with HeatShield Cerfractory | $850-$1,400 |
| Chimney-top damper cable replacement | $280-$520 |
What moves the price: accessibility (crawl-space installs take longer), whether we need to order a discontinued OEM part versus using in-stock aftermarket, and the extent of firebox damage once we get the panels out. We give you the full number before we start. Estimates are free - call (631) 528-2501 for yours.
Why Northport Homeowners Call Hearthstone Chimney Co. for Gelco Work
We’ve been on roofs and in fireboxes across Northport for over 42 years, including the older colonials near Northport Harbor where the chimneys have character and the creosote doesn’t quit. Russell Haines and our crew know Gelco products because we’ve repaired hundreds of them - not from a manual, from taking them apart and putting them back together.
Our 90-Day Done Right Promise means if it’s not right, we come back. In writing, no arguing. We also carry DuraFlex liner material and HeatShield repair products, so when a Gelco fix needs backup from another professional-grade brand, we don’t have to wait on a supplier. Photos you can see, a plain-English verdict, and a square deal on the bill. That’s the Keystone Standard.
If the chimney’s doing its job, you won’t think about it. My goal is to keep it that way.
FAQs
No - as an independent Gelco service provider, our work does not void any remaining factory warranty on your unit. We use OEM or equivalent-quality parts and document everything, so if you ever need to make a warranty claim, you have a clear service history. Call (631) 528-2501 if you want us to review what’s still covered.
Most common Gelco parts arrive in three to five business days. We carry the high-failure items on our trucks, so roughly 70% of repairs are same-visit. For discontinued components, we typically have a DuraFlex or HeatShield equivalent in the van. We’ll tell you before we order anything.
Replace when the firebox is structurally compromised, the unit is over 25 years old and parts are scarce, or repair costs exceed 60% of a new insert. We repair when the fix is straightforward and the unit has solid years left. Our camera inspection shows you exactly which category you’re in. Call for a free second opinion if another company told you replacement was your only option.
Every year, before you light it for the season. Gas fireplaces burn cleaner than wood, but the pilot, burner ports, and blower still collect debris. Annual service catches carbon buildup, blower bearing wear, and venting issues before they become safety problems. Our $89 Seasonal Tune-Up covers the full safety check.
Creosote accumulates, refractory cracks spread, and the risk of a chimney fire or CO intrusion rises. In Northport’s older homes with tighter construction, a blocked flue can push combustion gases into living spaces faster than you’d notice. We find these conditions in Level-2 inspections regularly, and we can show you exactly what we’re seeing. Call (631) 528-2501 to book - estimates are free.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Northport and nearby areas.