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 Denver Owner’s Guide
We stock and install Olympia Chimney-compatible chimney caps across Denver, with most replacements running $340-$620 installed depending on flue size and whether your crown needs resealing. Same-day installation is available when we have your diameter and mounting type confirmed by phone. Most Denver homeowners discover the cap failed after finding rust flakes in the firebox, water stains on the ceiling near the chimney breast, or hearing the damper clang in a windstorm that bent the mesh.
Which Olympia Chimney Models This Applies To
Olympia Chimney caps fit their stainless steel and galvanized flue liner systems, but the critical match is flue diameter, not just the brand label. We see three series in Denver homes: the standard 304 stainless single-flue caps (6″ to 13″ diameters), the multi-flue caps for larger masonry chimneys, and the wind-directional models designed for Colorado’s Front Range gusts. Check the stamped size on your existing cap’s skirt or measure the flue tile’s outside diameter with a tape measure, not the cap’s overall width. The mounting type matters: outside-mount caps slip over the flue tile; inside-mount models seat down into the flue opening with tension screws.
OEM Olympia Chimney caps run through Haven’s buying network at distributor pricing we pass through. Aftermarket equivalents from Gelco or Famco match the 304 stainless spec and often ship faster, but we verify the mesh gauge (typically 5/8″ or 3/4″ for Colorado spark arrestor code) before recommending a swap. If your liner was installed between 2008 and 2016, double-check the cap base dimension; Olympia used a slightly narrower skirt profile in those years that aftermarket makers didn’t always copy.
Signs Your Olympia Chimney Chimney Cap Is Failing

- Rust streaks down the flue tile or firebrick. Galvanized caps in Denver’s freeze-thaw cycle typically corrode at the skirt seam first. Once water reaches the flue interior, it accelerates liner deterioration and stains the smoke chamber visible on camera.
- Mesh screen pulled loose or gaps at the frame corners. High winds along the foothills and across open plains warp lightweight caps. Gaps let embers escape, violating Denver’s wildland-urban interface fire codes in some zoning districts.
- Water in the firebox after snowmelt or hard rain. A properly seated cap blocks direct precipitation. If you’re mopping the hearth, the cap is either dislodged, incorrectly sized for your flue projection, or missing its storm collar entirely.
- Animal nesting debris or droppings on the smoke shelf. Squirrels and starlings exploit bent mesh or lifted caps. In Park Hill and Congress Park, we pull nests from caps that failed two seasons ago and the owner never noticed.
- Damper operation stiff or grinding after weather events. A cap that blew partially off can drop fragments onto the damper plate. The debris binds the mechanism and, left alone, scores the throat enough to require damper replacement too.
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AfterReplacement Cost & What’s Included
| Service Component | Price Range |
|---|---|
| Olympia Chimney-compatible cap, standard single-flue (6″-10″) | $180-$290 |
| Olympia Chimney-compatible cap, large single-flue or multi-flue | $260-$420 |
| Labor: remove old cap, fit and secure new, seal crown interface | $160-$200 |
| Crown resealing if cracks or voids found (adds 30-45 min) | $95-$150 |
| Typical total installed | $340-$620 |
What drives the range: flue diameter above 10″, multi-flue configurations, and whether the existing cap was secured with corroded fasteners we have to drill out. Every quote is written before we climb down, per Haven Standard Clause 1. The cap carries a 10-year manufacturer warranty against defects; our installation workmanship is covered by the 365-Day Done Right Promise. We source through Haven’s buying network specifically to keep customer prices honest, same as with DuraFlex, HeatShield, and Gelco materials.
DIY or Call Us?

You can safely verify the cap’s condition from ground level with binoculars or a phone zoom, checking for visible rust, mesh gaps, or tilting. Do not climb the roof. Denver’s composite shingle pitches become slick with morning frost eight months of the year, and cap replacement requires working at the flue terminus with both hands free. The tension screws on inside-mount models seat with specific torque; over-tighten and you crack the flue tile, under-tighten and the next wind deposits your new cap in the neighbor’s yard. We’ve retrieved caps from gutters, hedges, and once from a parked car on Vine Street. Call (720) 674-7312, describe what you’re seeing, and we’ll confirm sizing by phone before scheduling.
FAQs
304 stainless models typically last 15-20 years in Denver’s climate; galvanized versions often show skirt corrosion in 7-10 years due to Front Range temperature swings and UV exposure at altitude. Call (720) 674-7312 for an exact quote on replacement, estimates are free.
Mesh can sometimes be rewired and minor frame bends corrected, but once rust penetrates the skirt seam or the base flange warps, repair costs approach replacement and won’t carry a warranty. We show you the camera footage of the damage before recommending either path. Call (720) 674-7312 for an exact quote, estimates are free.
Most single-flue replacements take 45-90 minutes on site, including removal, fit verification, and crown seal inspection. Multi-flue or corroded-fastener situations run closer to two hours. Call (720) 674-7312 for an exact quote and availability, estimates are free.
We carry the six most common diameters (6″, 7″, 8″, 10″, 12″, 13″) in 304 stainless single-flue configuration daily; multi-flue and wind-directional models are pulled from our Denver warehouse same-morning once we confirm your measurements. Call (720) 674-7312 with your flue diameter and we’ll verify stock before we dispatch.
Level Two Chimney Denver is an independent service provider, not affiliated with Olympia Chimney. We install their compatible caps alongside DuraFlex, HeatShield, Gelco, and Famco materials procured through Haven’s buying network.
Ready to stop the water intrusion and protect your flue? Call us at (720) 674-7312. A live person answers 24 hours a day, we’ll text when your technician is en route with a name and photo, and you’ll get a written price before anyone starts work, a documented photo record when it’s done, and the 365-Day Done Right Promise stamped on every job. The camera doesn’t guess. Neither do we.
Written by Corrine Halstead, Owner, Level Two Chimney Denver at Level Two Chimney Denver, serving Denver and nearby areas.





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