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.
Gelco Fireplace Services in Leesburg: What to Know First
We provide independent Gelco fireplace services in Leesburg, with most repairs completed in a single visit and upfront pricing agreed before we start. A typical Gelco gas fireplace service runs $180 to $320, while firebox or damper repairs on Gelco wood-burning units range from $350 to $850 depending on parts. We do not quote low to get in the door, then find “surprise” problems - the estimate we give is the invoice you pay.
This page is for Leesburg homeowners who already own a Gelco fireplace, insert, or gas log set and need honest repair, conversion, or annual service. You will not find manufacturer-authorized service here - we are an independent Gelco service provider - but you will find technicians who know these units part-for-part and have worked on them in Leesburg homes for the better part of two decades. Call (571) 701-7519 to speak with a live person, any hour.
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
- Gelco Vented Gas Log Sets - delayed ignition and sooting. The G4 and G5 burner series use a single thermocouple design that weakens after roughly seven to ten years of Leesburg’s freeze-thaw cycling. We test millivolt output at the valve, replace with an OEM Robertshaw or White-Rodgers equivalent rated for the BTU load, and verify flame impingement on the new thermocouple tip before we leave.
- Gelco Fireplace Inserts - blower motor rattling or failure. The 18- and 24-inch insert lines mount the convection blower in a sheet-metal housing that collects dust from Loudoun County’s pollen-heavy springs. We pull the housing, clean the squirrel cage without bending fins, and install a replacement only if the bearing race is shot. Most of the time, the motor just needs cleaning and re-mounting on fresh vibration pads.
- Gelco Direct-Vent Gas Fireplaces - glass fogging and seal degradation. The 36DV and 42DV units use a woven gasket around the glass frame that hardens in dry winter heat. We replace with the correct 3/16-inch braided gasket, never generic rope, and re-torque the glass clips to factory spec. A fogged glass on a direct-vent unit means combustion gases are not sealing - we treat it as a safety stop until corrected.
- Gelco Wood-Burning Fireplaces - cracked rear firebrick and throat damper corrosion. The 36-inch and 42-inch masonry-compatible units sold in the 1990s and early 2000s used a cast-iron throat damper that rusts where Leesburg’s humid summers meet creosote residue. We camera-inspect the smoke chamber, measure the damper frame for square, and either re-build with HeatShield cerfractory foam or replace with a lock-top damper if the frame is too far gone.
- Gelco Vent-Free Log Sets - odor complaints and ODS pilot failure. The GV18 and GV24 series rely on an oxygen depletion sensor that clogs with lint from indoor air. We disassemble the pilot assembly, clean the ODS orifice with a #61 drill bit by hand, and test room oxygen levels with a calibrated meter. Vent-free units are unforgiving - we will not re-light one with a compromised ODS, period.
Our Gelco Fireplace Services Process
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Call and schedule. A live person answers, asks what you are burning and how often, and sets a window. Russell Haines puts it this way: “Tell me what you are burning and how often, and I can tell you what your chimney looks like before I even climb up.”
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Arrival and upfront pricing. Our technician arrives in uniform, covers boots, and confirms the scope and price before touching tools. No surprises on the bill.
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Level-2 camera inspection. We run a camera through the flue or inspect the firebox and gas train, depending on fuel type. You see the photos. We give a plain-English verdict.
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Parts decision. For Gelco units, we source OEM when it protects warranty coverage or fitment, and use quality aftermarket from our standard inventory - DuraFlex for liners, HeatShield for refractory repair, Famco for caps - when the OEM part is obsolete or overpriced without benefit.
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Repair and test. We complete the work, pressure-test gas lines or draft-test wood units, and clean the work area to the condition we found it.
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Documentation and guarantee. You receive photos, a written summary, and the 90-Day Done Right Promise - in writing, no arguing. If it is not right, we come back.
What Gelco Fireplace Services Costs in Leesburg
| Service | Typical Range |
|---|---|
| Annual gas fireplace tune-up (Gelco log set or direct-vent) | $180 - $260 |
| Thermocouple / pilot assembly replacement | $220 - $340 |
| Blower motor repair or replacement (inserts) | $280 - $520 |
| Glass gasket replacement (direct-vent units) | $160 - $240 |
| Firebox refractory panel repair (HeatShield) | $450 - $780 |
| Throat damper replacement or lock-top conversion | $380 - $850 |
| Full insert removal and gas-line reconfiguration | $650 - $1,200 |
What moves the price: accessibility of the unit, age of the gas valve (obsolete valves require conversion kits), and whether the chimney needs simultaneous liner or cap work. We discuss all of this before you commit. Call (571) 701-7519 for an exact quote - estimates are free.
Why Leesburg Homeowners Call Hearthstone Chimney Co. for Gelco Work
We have been in Leesburg long enough to know which homes off Route 15 have the original Gelco inserts from the 1998 building boom, and which colonials near Morven Park burn cordwood four months a year and need their dampers checked every spring. That history matters when you are deciding whether a repair is worth it or the unit has reached its end.
Our technicians are background-checked and uniformed, and most Gelco jobs finish in one visit because we stock the common failure parts - thermocouples, blowers, gaskets, ODS pilots - rather than ordering after diagnosis. The 90-Day Done Right Promise covers every repair in writing. We also work with DuraFlex, HeatShield, and other professional-grade brands, so if your Gelco unit needs a liner or refractory repair that crosses product lines, we do not hand you off to another contractor.
Calls are answered by a live person, 24 hours a day, 7 days a week. No voicemail, no callback queue.
FAQs
No, provided the repair uses OEM-spec parts and follows standard installation practices. Gelco warranties cover manufacturing defects, not who performed the service. We document every part number and torque spec so your warranty protection stays intact. Call (571) 701-7519 if you have a specific warranty concern - we have handled warranty documentation for Leesburg homeowners before.
Common parts - thermocouples, blowers, gaskets, ODS assemblies - are in our Leesburg-area inventory and arrive with the technician. Obsolete parts for units discontinued before 2010 may take five to ten business days. We tell you before booking if your model falls in that category, and we never start a job we cannot finish.
Replace if the firebox is cracked through to the outer shell, the gas valve is obsolete and no conversion kit exists, or repair costs exceed 60 percent of a new unit installed. Repair if the failure is isolated to a thermocouple, blower, or gasket and the heat exchanger passes inspection. We show you the camera footage and run the numbers both ways - no pressure either direction. Call (571) 701-7519 for a free second opinion on any written replacement estimate.
Every year before the burning season, even if it looks fine. Dust accumulation on the burner ports, spider webs in the pilot orifice, and thermocouple drift do not announce themselves until the unit fails on the coldest night in January. Our $89 Seasonal Tune-Up covers cleaning, testing, and adjustment. Seniors and veterans save an additional 5 percent.
Creosote builds in the flue, the damper corrodes further, and small cracks in the firebrick expand until they require full refractory replacement instead of a HeatShield repair. In Leesburg’s climate, with wet springs and hard winter use, a skipped year often turns a $300 maintenance visit into an $800 repair. The carbon monoxide risk on a compromised wood-burning system is real and specific - a blocked or leaking flue pushes exhaust into living space. Call (571) 701-7519 to schedule before the season starts.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Leesburg and nearby areas.





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