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.
Famco Chimney Cap Installation: The Leesburg Owner’s Guide
Famco chimney cap installation in Leesburg typically runs $280-$480 for most single-flue setups, including the cap, flashing adaptation, and labor, with same-day installation when we have your model specs. We stock Famco-compatible caps in common sizes for the Leesburg market and carry DuraFlex, HeatShield, and Gelco alternatives when a direct match isn’t available. Most homeowners realize their cap has failed after finding rust stains on the chimney breast, hearing animal activity above the flue, or noticing water spots on the ceiling near the fireplace after a hard Virginia rain.
Which Famco Models This Applies To
Famco caps break down into three main series you’ll see around Leesburg: the standard galvanized single-flue caps (SC series), stainless multi-flue models (MSC series), and the heavier-gauge galvanized or copper caps labeled GC or CC. The SC-8, SC-10, and SC-12 cover the majority of brick chimneys built here between 1960 and 1990, with the number indicating the flue opening in inches. Multi-flue MSC caps run wider, often 14×18 or 18×22, and mount with corner leg brackets rather than a single central bolt.
To identify yours, look for a stamped model number on the underside of the lid or on the outer band of the mesh screen. If the stamp is rusted away, measure the flue tile opening (not the chimney crown) and note whether the cap attaches with a single central bolt, four corner legs, or a clamp-band mount. The SC series uses a central bolt; MSC uses corner legs.
We are an independent service provider, not affiliated with Famco. For most Leesburg installations, we match OEM specs with equivalent-grade caps from our truck stock. The only time we insist on factory-original is when the existing mount is proprietary, as with certain MSC multi-flue brackets that have a non-standard 5/16-inch leg spacing. Aftermarket equivalents exist for 95% of what we see, and we warranty them identically.
Signs Your Famco Chimney Cap Is Failing
- Rust bleeding down the chimney face. Galvanized Famco caps lose their zinc coating after 12-15 years in Leesburg’s wet winters and humid summers. Once the base metal is exposed, rust runs down the brick and stains the mortar joints below. The cap is no longer protecting the flue; it’s actively funneling water toward it.
- Mesh screen pulled away from the frame. Squirrels and raccoons test every weak point. On older SC caps, the spot-welded mesh separates from the lid first, usually at the corners. You may not see the gap from the ground, but you’ll hear scratching or find nesting debris in the firebox.
- Lid sitting crooked or detached. The central bolt on SC-series caps corrodes from the inside out. Wind lift does the rest. A lid that tilts more than 15 degrees is already letting rain in, and the next strong storm will drop it in the yard or onto your roof.
- Water spots on the ceiling near the fireplace. This means water is past the cap, past the flue, and into the smoke chamber or chase. In Leesburg’s freeze-thaw cycle, that moisture expands and cracks flue tiles. The cap failure is the root cause, but the damage is now downstream.
- White efflorescence on exterior brick below the cap. Salt deposits mean water is saturating the masonry repeatedly. A properly fitted Famco cap with a 2-inch overhang should throw water clear of the brick. Efflorescence tells you the cap is undersized, incorrectly mounted, or missing its drip edge.
Replacement Cost & What’s Included
| Service Item | Price Range in Leesburg |
|---|---|
| Famco-compatible single-flue cap (SC series), installed | $280-$380 |
| Famco-compatible multi-flue cap (MSC series), installed | $380-$480 |
| Custom-size or copper upgrade | $520-$780 |
| Crown repair or flashing adaptation (if needed) | $120-$240 |
| Level-2 camera inspection with photo report | $89 (with cap installation) |
What drives the range: flue accessibility, whether the existing mount hardware is salvageable, and if the chimney crown needs resealing before the new cap goes on. We price this upfront, before we start. The number on the estimate is the number on the invoice. Every cap installation carries our 90-Day Done Right Promise in writing, no arguing. If it leaks, rattles, or doesn’t sit square, we come back.
DIY or Call Us?
There is nothing inherently dangerous about swapping a chimney cap, which is why the hardware stores sell them. The problem is knowing what you are actually looking at once you are on the roof. Is the flue tile cracked beneath the old cap? Is the crown pitched wrong so water pools behind your new installation? Did you measure the flue opening or the outside dimension of the flue tile, because those differ by an inch and a half and the wrong measurement means a cap that gaps or clamps unevenly?
We have found squirrel nests, separated flue liners, and active water damage hidden under caps that looked fine from the ground. Our technicians carry a camera and document what they see. You get photos you can see and a plain-English verdict. If the cap is all you need, we say so. If there is more, we show you before you spend.
Call (571) 701-7519 when you are ready. A live person answers, 24 hours a day.
FAQs
A galvanized Famco cap typically lasts 12-15 years in northern Virginia’s climate before the coating fails and rust sets in. Stainless models run 20-25 years if the mesh isn’t damaged by animals or wind-borne debris. Call (571) 701-7519 and we’ll check what you have and tell you honestly whether it’s time.
Mesh can sometimes be rewired and a loose bolt replaced, but a rusted lid or separated seam is not worth patching. The cap’s job is to shed water and keep animals out; a repair that fails in two years costs more than doing it once, correctly. We will tell you during inspection if repair is viable.
Most Famco cap replacements take 45 minutes to 90 minutes from ladder set to final photo. Multi-flue caps or jobs requiring crown prep run closer to two hours. We complete most jobs in a single visit, and we do not leave until the cap is level, secure, and documented.
We stock Famco-compatible single-flue caps in 8, 10, and 12-inch sizes and multi-flue caps in the common 14×18 and 18×22 configurations. For odd sizes or the proprietary MSC bracket spacing, we order factory-direct with a 3-5 day turnaround. We will know which category you fall into once you describe your chimney or send a photo.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Leesburg and nearby areas.





Before
After
Before
After
Before
After