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 Alexandria Owner’s Guide
We stock Famco-compatible chimney caps on the truck and install them throughout Alexandria, VA, typically for $285-$425 including the cap, mounting hardware, and labor. Most installations in Alexandria are completed the same visit, provided the existing flue tile or chase top is intact enough to accept the cap. You’ll usually discover the problem after a storm, when you find a cap in the yard or notice water staining on the ceiling near the fireplace. Sometimes it’s the screen that’s torn, sometimes the lid has rusted through, and sometimes the cap was undersized from the start.
Key Takeaways
- Famco caps fail most often at the screen and the lid-to-body seams, especially in Alexandria’s humid summers and freeze-thaw winters.
- We carry the common Famco sizes (8″ round, 13″ round, and rectangular chase covers) on the truck; odd sizes are ordered and installed within a week.
- Every install includes a Level 2 camera check of the flue below, because a new cap on a damaged crown solves nothing.
- Written price before work starts, per Clause 1 of the Haven Standard. No exceptions.
Which Famco Models This Applies To
The Famco lineup most commonly seen in Alexandria breaks into a few families: the FC series (round, single-flue caps with spark arrestor mesh), the LD series (larger-diameter round caps for masonry flues), and the CHC series (rectangular chase covers for factory-built and wood-framed chimney chases). The part number is usually stamped on the underside of the lid, but after a few Virginia seasons that stamp can be unreadable. What matters more is the measurement: inside flue tile diameter for round caps, and outside chase dimensions for chase covers.
On the OEM-versus-aftermarket question: Famco’s steel caps are well built, but their galvanized bases corrode at the same rate as any competitor’s. In Alexandria’s climate, we often recommend a stainless replacement base from DuraFlex or Olympia Chimney when the original Famco base is pitted through. It’s not a knock on Famco. It’s a materials decision based on what we see under the camera: salt air from the river, freeze-thaw cycles that open seams, and creosote that eats galvanizing. The cap brand matters less than the metal thickness and the fit.
Signs Your Famco Chimney Cap Installation Is Failing

- Water in the firebox after rain. Almost always the cap lid seam rusted through or the base flange lifted. We see this a lot in older Alexandria colonials where the cap was installed with deck screws instead of masonry anchors.
- Torn or missing spark arrestor mesh. The screen catches embers and squirrel intrusion; once it’s torn, the cap is no longer doing its second job. In neighborhoods near wooded lots like Fort Ward, the first sign is usually a squirrel in the flue.
- Rust streaks down the flue tile or chase top. That’s the cap’s galvanization failing and bleeding onto the masonry. It’s cosmetic at first, structural later.
- The cap shifts when you push on it. A properly installed Famco cap should not move. Movement means mounting hardware failed or the concrete crown is spalling underneath. We see this a lot on Alexandria homes built in the 1980s and 1990s.
- Whistling or wind noise through the chimney. Sometimes that’s an undersized cap creating turbulence, sometimes it’s the liner. The camera tells us which.
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AfterReplacement Cost & What’s Included
In Alexandria, an installed Famco-compatible chimney cap runs $285-$425 for a standard round cap on a masonry flue. Rectangular chase covers run $395-$650 installed, depending on size and whether we’re fabricating the cover or using a stock CHC-series part. The range exists because a 13″ round cap for an older colonial is a different job than a 36″ chase cover on a newer build near the waterfront.
Every price includes the cap, stainless mounting hardware, a bead of high-temp silicone at the base, and our sweep technician on site. You get a written price before work starts (Haven Standard Clause 1), a photo of the finished install, and a written warranty on parts and labor. We also run a quick camera scan before we install, because mounting a cap on a deteriorated crown is a waste of your money. Corrine Halstead put that rule in place years ago; she says the camera doesn’t have an opinion, it just shows you what’s there.
DIY or Call Us?

If you can safely access the roof and the flue tile is in good shape, swapping a Famco cap is not beyond a careful homeowner. The risks are what you’d expect: working at height on a pitched Alexandria roof, and the damage that comes from overtightening masonry anchors and cracking the flue tile underneath. If the crown is spalling or the tile is cracked, even a perfectly installed cap will still leak, and you won’t know until the next storm.
We’d say this: check the old cap yourself from the ground with binoculars. If it’s the standard Famco 8″ or 13″ round, we probably have the replacement on the truck and the install takes under an hour. If you’d rather not climb, call us at (240) 290-6726 and we’ll handle the roof work, the camera check, and the documentation.
FAQs
A galvanized Famco cap in Alexandria typically lasts 5 to 8 years before rust becomes structural; stainless versions last 12 to 15 years. The wildcard in Alexandria is the freeze-thaw cycle, which opens seams and accelerates corrosion at the base flange, especially on river-facing homes where wind carries salt air.
We’ve done it, but rarely recommend it. Once the screen is torn or the base is pitting, the cost of patching approaches half the cost of a new cap and the repair won’t outlast a season or two. We’ll tell you plainly if your cap can wait; if it’s a cosmetic rust streak, there’s no rush.
Most standard round cap replacements in Alexandria take under an hour on site, including the camera check of the flue below. Chase covers and custom-fabricated work take longer, usually 90 minutes to 2 hours.
We stock the common Famco sizes on the truck, along with DuraFlex, HeatShield, and Gelco parts for lining and repair work. If you have a specific Famco part number, call (240) 290-6726 with it and we’ll check our inventory before rolling out.
Get a Written Quote for Your Alexandria Chimney Cap

If your Famco cap is failing, or if you just want a camera scan and a straight answer on whether it needs replacing, call us at (240) 290-6726. We’ll give you a written price before any work starts, a documented photo record when it’s done, and a straight answer on whether the cap can wait or not. We serve all of Alexandria, from the colonials off Seminary Road to the waterfront builds in Old Town. Estimates are free, and live phone support is there 24/7.
Written by Corrine Halstead, Owner, Level Two Chimney Alexandria, serving Alexandria and nearby areas.





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