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.
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AfterGelco Chimney Cleaning & Sweep in Ashburn: What to Know First
We provide independent Gelco chimney cleaning and sweep services across Ashburn, with most Level 1 and Level 2 inspections completed in a single visit and upfront pricing agreed before we start. A standard Gelco annual sweep and inspection runs $189-$289 in this market, and we’ll tell you plainly if your flue condition allows you to wait another season. This page is for Ashburn homeowners who own a Gelco chimney cap, Gelco top-sealing damper, or Gelco liner system and need a sweep who understands how these parts age in Loudoun County’s freeze-thaw cycle. Call (571) 701-8135 to speak with a live person, any hour, any day.
How Gelco Products Fail - and How We Fix Them
- Gelco Model E top-sealing dampers - The silicone rubber gasket on the E-series hardens faster than expected in Ashburn’s sun-exposed south-facing chimneys, typically showing cracking by year seven instead of the advertised twelve. We spot this during our camera inspection and can source the correct OEM gasket kit or fit a HeatShield-compatible replacement if the frame is still square.
- Gelco stainless chimney caps with mesh sides - The 5/8-inch mesh on pre-2015 caps clogs with cottonwood fluff each May and June along the Broad Run watershed, restricting draft and accelerating creosote buildup. We remove the cap as part of our sweep, clear the mesh with compressed air rather than wire brushes that distort the openings, and note when the mesh spacing is too tight for your tree canopy.
- Gelco UltraPro liner systems in oil-to-gas conversions - The UltraPro’s 316Ti alloy handles gas condensate well, but we’ve found the collar sealant degrades where Ashburn’s clay-heavy soil causes subtle foundation shift, especially in the older homes south of Route 7. Our Level 2 inspection includes pulling the camera past the collar to check for white efflorescence that signals leakage into the masonry.
- Gelco Lyemance damper chains - The brass chain on Lyemance dampers seizes in the guide tube when homeowners rarely open the fireplace, which is common in Ashburn’s mild shoulder seasons. We lubricate with high-temp graphite during the sweep rather than WD-40, which gums up, and we show you the operation so you don’t need us back for a stuck damper.
- Gelco wind-directional caps in exposed ridge-line homes - The rotating collar bearing on these caps collects grit from Ashburn’s periodic dust storms off the Piedmont, causing the cap to freeze in one position and create downdraft. We disassemble, clean the bearing race, and repack with copper-based anti-seize; replacement with a fixed-direction Gelco cap is our recommendation only if the bearing race is scored.
Our Gelco Chimney Cleaning & Sweep Process
- 1
Call intake. A live person answers, notes your Gelco model if you know it, and books a window. We ask about the last sweep date and any draft or odor issues.
- 2
Arrival and setup. Our technician calls ahead, arrives in a marked van, lays drop cloths, and runs a video camera up the flue before touching anything. You see what we see on the tablet.
- 3
Diagnosis and pricing. We identify whether the issue is cleaning-only or requires Gelco parts. If a part is needed, we explain OEM versus quality aftermarket options and give you the exact price before proceeding.
- 4
Sweep and service. We use rotary poly brushes sized to your Gelco liner diameter, HEPA-contained vacuums, and hand tools for the smoke chamber. Gelco dampers are exercised, lubricated, and reseated.
- 5
Final test and documentation. We run a combustion spillage test if gas is present, show you the after-sweep camera footage, and leave a written report with photos and our plain-English verdict.
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Cleanup and guarantee. We haul away debris, reset furniture, and hand you the 90-Day Done Right Promise in writing. The flue doesn’t lie - and neither do we.
What Gelco Chimney Cleaning & Sweep Costs in Ashburn
| Service | Typical Range | What Affects Price |
|---|---|---|
| Level 1 sweep and inspection (Gelco cap/damper removal and reinstall) | $189-$249 | Roof pitch, cap condition, creosote stage |
| Level 2 camera inspection with written report | $289-$389 | Number of flues, liner footage, access difficulty |
| Gelco damper gasket replacement | $140-$220 (parts + labor) | OEM versus aftermarket, frame corrosion |
| Gelco cap mesh cleaning or replacement | $85-$175 | Mesh size, whether frame is salvageable |
| UltraPro collar reseal or repair | $220-$340 | Extent of masonry damage, sealant type required |
Prices reflect Ashburn’s market as of 2024. We do not quote low to get in the door and then add charges. The number on the estimate is the number on the invoice. Call (571) 701-8135 for an exact quote - estimates are free.
Why Ashburn Homeowners Call Hearthstone Chimney Co. for Gelco Work
We’ve been sweeping chimneys across Ashburn for well over a decade, from the mature neighborhoods near One Loudoun to new construction along Loudoun County Parkway. Russell Haines learned this trade at Los Angeles Trade-Technical College and has run crews here long enough to know which Gelco parts hold up and which don’t.
Our 90-Day Done Right Promise means if it’s not right, we come back. No paperwork, no arguing. Our technicians are background-checked, uniformed, and carry professional-grade materials from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield. When a Gelco part is back-ordered, we have relationships with multiple suppliers and can often source a quality equivalent that won’t void your remaining warranty. A square deal, no surprises on the bill, and we’ll be there when we say.
FAQs
No. As an independent Gelco service provider, we use warranty-safe practices and OEM-spec parts. Gelco’s warranty covers manufacturing defects, not who sweeps the flue. Keep your invoice from us; it documents proper maintenance if you ever need to file a warranty claim.
The National Fire Protection Association recommends annual inspection, and sweeping as needed based on creosote accumulation. In Ashburn, homes burning oak or hickory from local suppliers typically need sweeping every cord of wood burned; gas flues with Gelco liners need less frequent cleaning but still need the cap and damper checked yearly. Call (571) 701-8135 to schedule.
Most common Gelco gaskets, mesh inserts, and hardware are in our vans or available next-day through our Loudoun County suppliers. Older discontinued models may take three to five business days; we’ll tell you during the inspection and can often secure the flue safely in the interim.
Usually cleaning and lubrication. The Lyemance and Lock-Top dampers seize from disuse and creosote glazing, not mechanical failure. We free the mechanism, clean the frame seat, and exercise it through a full cycle. Replacement is only needed if the frame is warped or the handle mechanism is cracked. Call (571) 701-8135 - we’ll tell you which it is before we charge for either.
If the 316Ti alloy shows no pitting, no separated seams, and proper clearance to combustibles, we sweep it and certify it for continued use. We only recommend replacement when our camera shows damage you can see for yourself. Many Ashburn homeowners are told they need a new liner when they need a sweep and a collar reseal. Get a second opinion from us; it’s free.
Written by Russell Haines, Owner & Master Sweep, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Ashburn and nearby areas.