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.
Olympia Chimney Chimney Cap Installation: The Lansdale Owner’s Guide
Olympia Chimney chimney cap installation in Lansdale typically runs $340-$620 for most single-flue and multi-flue caps, including the cap, mounting hardware, and labor. We stock common Olympia Chimney cap sizes on our trucks and can usually install same-day if your flue is standard dimension. Most Lansdale homeowners discover their cap has failed when water starts dripping down the flue during a March thaw, or when a neighbor spots rust stains running down the brick from the crown.
Which Olympia Chimney Models This Applies To
Olympia Chimney manufactures caps across several product lines, and the right match depends on your flue type and existing top-sealing setup. The Olympia Chimney 304 stainless single-flue caps fit standard clay flue tiles measuring 8×8, 8×13, or 13×13 inches, which covers most pre-1990 Lansdale colonials. Their multi-flue caps come in stock widths from 30 to 48 inches and require a minimum 4-inch overhang past the chimney crown on all sides.
Here’s where owners get tripped up: Olympia Chimney labels their caps with a model prefix that indicates material grade. OC-304 denotes standard 304 stainless; OC-316 is marine-grade for homes within three miles of salt air (not a Lansdale concern, but worth knowing if you’re comparing online listings). The OC-GC series is galvanized, which we don’t install because the lifespan in Montgomery County’s freeze-thaw cycle rarely exceeds seven years. We carry 304 and 316 stainless on the truck; galvanized we’d special-order only if a homeowner specifically requests it.
OEM Olympia Chimney caps ship with their proprietary slip-over mounting band and #10 stainless screws. Aftermarket equivalents from Gelco or Famco use a similar band but with slightly wider screw spacing. Either works, but mixing bands and screws across brands causes fit issues we’ve documented on camera more than once. We source through Haven’s buying network specifically to keep customer prices honest, and we note the manufacturer on every written scope.
Signs Your Olympia Chimney Chimney Cap Is Failing

- Rust streaks on the brick below the crown. Olympia Chimney caps use 304 stainless mesh and lid, but the spot-welded corners and mounting band are stress points. Once moisture gets behind the lid through a cracked weld, it runs down the band and stains the brick. In Lansdale, we see this accelerate after winters with heavy ice damming on the roof.
- Mesh sides pulled away from the frame. Squirrels and starlings can pry up the mesh if a corner weld fails first. The gap looks small from the ground, but a red squirrel needs only 1.5 inches. We found a nest in a Lansdale home near Hancock Street last spring because the homeowner heard chirping through the damper.
- Water dripping down the flue during rain. The cap lid is pitched, but if the mounting band loosens from thermal cycling, the whole assembly shifts. Water then runs down the flue tile instead of off the crown. We check this with a camera scan from the top down, not a flashlight guess from the fireplace.
- Visible daylight around the flue tile with the damper closed. This means the cap is missing entirely or the lid has blown off. It happens more than you’d think after high-wind events, and it’s an open invitation for rain, animals, and debris straight into the smoke chamber.
- White efflorescence blooming on the firebox brick. This is delayed evidence: water has been entering for seasons, evaporating, and leaving mineral deposits. By this stage, the cap failure has usually damaged the flue liner or smoke shelf. We document the full path with the camera before quoting any repair.
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AfterReplacement Cost & What’s Included
| Cap Type | Typical Installed Price | What’s Included |
|---|---|---|
| Single-flue, 304 stainless (standard sizes) | $340-$460 | Cap, mounting band, stainless hardware, removal of old cap, camera verification of flue top |
| Single-flue, 316 stainless | $420-$540 | Same as above with marine-grade material |
| Multi-flue, 304 stainless (up to 36″ width) | $480-$620 | Cap, base skirt, storm collar if needed, full crown inspection, photo record |
| Custom or oversized (over 36″ or irregular crown) | $580-$780 | Field-measured cap, extended skirt, additional flashing as needed |
What moves the price: crown condition (we repair spalling before mounting a new cap), flue tile height above the crown (needs an extended skirt if under 2 inches), and whether the existing fasteners are seized and require extraction. Every job gets a written price before work starts, per Haven Standard Clause 1. The cap carries a 10-year manufacturer warranty against corrosion-through; our installation is backed by the 365-Day Done Right Promise.
DIY or Call Us?

There’s no high-tension spring or electrical hazard on a chimney cap, but there is a real fall risk. Most Lansdale chimney crowns sit 15 to 25 feet up, often on a pitched roof with a 6:12 or steeper grade. The work itself is straightforward: remove four to six screws, lift the old cap, seat the new band, tighten, verify square. But doing it without roof brackets, a proper ladder angle, and a spotter is how emergency rooms stay busy.
What you can check safely from the ground: measure your flue tile dimensions with a tape from the fireplace opening (add 1 inch for wall thickness), note any model number stamped on the existing cap rim, and photograph rust patterns to show us. What goes wrong in DIY: mounting the band too tight and cracking the flue tile, using non-stainless fasteners that fail in two seasons, or missing that the crown itself is spalling underneath and needs repair first. The camera doesn’t guess. Neither do we. Call (267) 327-4785 and we’ll give you a written price before anyone climbs.
FAQs
A 304 stainless Olympia Chimney cap typically lasts 15 to 20 years in Montgomery County’s climate, though we’ve pulled 12-year caps that failed early due to crown splashback or animal damage. The 316 grade adds roughly five years. Galvanized caps rarely make it past seven years here. Call (267) 327-4785 for an exact quote on replacement - estimates are free.
Spot-welding a separated mesh corner or patching a small rust hole is technically possible, but we don’t recommend it. The repair usually fails within two to three years, and the labor cost approaches replacement. We write up the condition, show you the camera footage, and price both options if you want to see the difference. Call (267) 327-4785 for a free second opinion on any written estimate.
Most Olympia Chimney cap replacements take 45 to 90 minutes from ladder set to photo record, assuming the crown and flue tile are sound. If we find spalling or liner damage during the camera scan, we’ll show you the footage and write up a separate scope before doing any additional work. Call (267) 327-4785 to book - we stock common sizes on our trucks.
We carry 304 and 316 stainless single-flue and multi-flue caps in standard Lansdale sizes on every truck. Odd sizes or custom crowns require a field measurement and typically a two-day order through Haven’s buying network. We’ll tell you which category you’re in before we schedule. Call (267) 327-4785 and we’ll confirm availability for your specific flue dimensions.
Level Two Chimney Lansdale is an independent service provider; we are not affiliated with Olympia Chimney. We install their caps because they meet the Haven Standard for material quality and documentation, and because we’ve tracked their performance across 38,000+ chimney visits since 2009.
Ready to stop the drip and keep the squirrels out? Call (267) 327-4785 for a free estimate. We’ll send a background-checked, uniformed technician with a named license number, text you when they’re on the way, and deliver a written price before any work starts. Every job includes a camera-scan inspection and documented photo record under Haven Standard Clause 4, plus our 365-Day Done Right Promise.
Written by Corrine Halstead, Owner, Level Two Chimney Lansdale at Level Two Chimney Lansdale, serving Lansdale and nearby areas.





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