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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AfterFamco Chimney Cleaning & Sweep in Gaithersburg: What to Know First
We provide independent Famco chimney cleaning and sweep services throughout Gaithersburg, with most jobs completed in a single visit and upfront pricing agreed before we start. A standard Famco annual sweep and Level 1 inspection runs between $189 and $279, while Level 2 camera inspections for suspected liner or flue damage range from $325 to $495. We are not affiliated with or authorized by Famco; we are an independent service provider who has worked on their equipment long enough to know where the problems hide.
This page is for Gaithersburg homeowners who heat with a Famco chimney system, whether it is a factory-built metal chimney or a Famco liner installed in a masonry flue. If you are in an older colonial near Kentlands, a townhome off Diamond Avenue, or anywhere in between and your Famco system needs its annual sweep or you are seeing performance issues, call us at (301) 719-5236. A live person answers, 24 hours a day.
How Famco Products Fail - and How We Fix Them
- Famco FAS Series factory-built chimneys develop creosote packing at the twist-lock joints. The FAS uses a snap-together collar design that creates a slight interior ridge every few feet. In Gaithersburg’s cold, wet shoulder seasons, incomplete combustion from damp hardwood leaves heavy, tarry creosote right at those ridges. We use a rotary poly brush sized to the exact FAS diameter, not a generic whip, and we inspect each joint with a borescope before we call the sweep complete.
- Famco FLX flexible liners sag in tall, uninsulated masonry flues common in 1960s Gaithersburg splits. The FLX is a quality liner, but it was not designed to support its own weight across a 25-foot run without proper top support. Sagging creates a low spot where acidic condensation and soot pool. We spot this with our Level 2 camera, then determine whether the support plate needs resetting or whether the liner has degraded enough to require replacement with a properly supported DuraFlex or HeatShield system.
- Famco chimney caps corrode at the base flange faster than the mesh or lid. The cap sits in a harsh environment, salt spray from I-270 and the Beltway accelerates galvanic corrosion where the cap meets the flue tile or chase cover. We see this on homes near the Shady Grove corridor. Our fix is a Gelco or Copperfield stainless cap with a proper counter-flashing, not another Famco cap that will fail the same way in six years.
- Famco direct-vent terminals ice over in Gaithersburg’s freeze-thaw cycles. The terminal’s horizontal discharge design can trap meltwater that refreezes across the intake and exhaust ports. We clean the terminal thoroughly, verify proper slope on the vent run, and in persistent cases recommend a terminal relocation or a factory-approved snow guard. We do not modify the terminal in ways that void your equipment warranty.
- Famco masonry chimney dampers seize from creosote glazing and rust. Particularly on the Famco cast-iron throat dampers installed in the 1980s and 1990s, years of sticky creosote buildup plus summer humidity weld the plate to the frame. We remove the damper, clean it off-site in our solvent tank, reseat it with high-temp lubricant, and test for full open and close. If the frame is cracked, we source a proper replacement rather than forcing a misfit.
Our Famco Chimney Cleaning & Sweep Process
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Call and schedule. A live person answers, day or night. We ask the Famco model or series if you know it, the age of the system, and what you are seeing. We give you a price range right then, with the final number set after we look.
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Arrival and protection. Our technician arrives in a marked truck, uniformed and background-checked. We lay runners from the door to the hearth and cover the work area. We have done this in Kentlands colonials with original heart pine floors and in new construction alike; we treat the house like it is our own.
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Level 1 or Level 2 inspection. Every sweep starts with inspection per NFPA 211. If we see staining, odd draft behavior, or you report a recent chimney fire, we upgrade to Level 2 camera inspection. You see the photos. We give you a plain-English verdict: sweep only, sweep plus repair, or stop and discuss replacement.
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The sweep and any repair. We use brushes and rods matched to your Famco flue size and material, metal for metal, poly for stainless. If we find a failed cap, damaged liner support, or other issue, we explain the OEM versus quality aftermarket trade-off. We stock Famco-compatible parts and alternatives from DuraFlex, HeatShield, and Gelco. You choose. We do not proceed without your go-ahead.
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Testing and documentation. We run a draft test, check all connections, and verify proper operation. You get a written report with photos, the sweep certificate for your insurance, and our 90-Day Done Right Promise in writing. If it is not right, we make it right. No paperwork, no arguing.
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Cleanup and close. We haul out our gear, vacuum the work area with a HEPA unit, and leave the space as we found it. Payment is due only when you are satisfied. The number on the estimate is the number on the invoice.
What Famco Chimney Cleaning & Sweep Costs in Gaithersburg
Pricing depends on what your Famco system needs and how we access it. Here is what Gaithersburg homeowners typically pay:
- Annual sweep with Level 1 inspection: $189 - $279
- Level 2 camera inspection: $325 - $495
- Heavy creosote removal (glazed or third-degree): add $150 - $275
- Famco cap replacement (stainless, with proper flashing): $340 - $580
- FLX liner support repair or reset: $425 - $750
- Full Famco-compatible liner replacement: $2,800 - $4,500
What moves the price: roof pitch and height, the condition of the existing system, whether we need to remove and reset a chase cover, and the degree of creosote buildup. We do not quote low to get in the door and then add charges. The estimate we give is the price you pay. Call (301) 719-5236 for an exact quote. Estimates are free.
Why Gaithersburg Homeowners Call Hearthstone Chimney Co. for Famco Work
We have been answering the phone with a live person for over 42 years, and we plan to be here in thirty more. That changes how you treat a customer. Our 90-Day Done Right Promise is in writing, no arguing, because a company that intends to stay in town does not hide from its mistakes.
Russell Haines and our technicians know Famco systems from hands-on work across Gaithersburg, including those older colonials near Kentlands where the fireboxes tell you a lot about how the house was built and whether anybody ever looked after it. We document every inspection with photos you can see and a plain-English verdict. We work with professional-grade materials from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield, no builder-grade substitutes. If it’s worth heating your home with, it’s worth doing the maintenance correctly.
FAQs
No. As an independent Famco service provider, we follow manufacturer specifications and use compatible parts. Equipment warranties are not voided by independent service unless the manufacturer can prove improper service caused the damage, which is why we document our work and use correct parts. Call (301) 719-5236 if you have a specific warranty concern.
Most Famco-compatible caps, supports, and hardware are in our Gaithersburg warehouse or available within two business days from our regional distributor. For discontinued Famco series, we often have suitable alternatives from DuraFlex or HeatShield already on the truck. We tell you before we book the job if a part delay is likely.
You know after we inspect it. A sweep fixes surface creosote and soot. If our camera shows liner gaps, support failure, or corrosion holes, we show you the photo and explain whether repair can wait or needs attention now. Nothing is recommended without camera evidence you can see for yourself. Call (301) 719-5236 to schedule.
The National Fire Protection Association says annually for all chimney systems, and Gaithersburg’s mix of cold winters and humid shoulder seasons makes that especially sensible for Famco metal systems where condensation accelerates corrosion. If you burn more than three cords a year, or burn primarily softwood, twice a year is the safer interval. Call us to set a schedule that matches your use.
Creosote accumulates, draft degrades, and the risk of chimney fire or carbon monoxide spillage rises. Famco metal chimneys are not forgiving of neglect; a hot fire in a heavily glazed flue can damage the liner or the chase surround. The cost of prevention is a fraction of the cost of repair or replacement. Call (301) 719-5236 for a free estimate and we will give you an honest read on your system’s condition.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Gaithersburg and nearby areas.