Olympia Chimney Chimney Cap Installation Nationwide

Olympia Chimney Chimney Cap Installation: The Westminster Owner’s Guide

We stock and install Olympia Chimney-compatible chimney caps for Westminster homeowners, with most replacements completed in a single visit for $285-$475 installed, depending on flue size and whether your cap mounts to the crown or the tile. If you’ve noticed rust streaks down your chimney breast or water spots on the firebox after a Carroll County storm, the cap is usually the first place we look. A failed cap lets rain, leaves, and the occasional squirrel into your flue, and in Westminster’s freeze-thaw winters, that moisture turns into cracked flue tiles and expensive repairs.

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Which Olympia Chimney Models This Applies To

Olympia Chimney produces caps across several product lines, and the right match depends on whether your flue is single or multiple, round or square, and what diameter you’re working with. The Olympia 13×13, 13×17, and 17×17 galvanized models are common in Westminster’s 1970s-1990s split-levels, while their stainless-steel line - typically the 304-grade with mesh sides - is what we see on newer installs and full liner jobs. Check the stamp on your existing cap’s skirt or measure the outside dimension of your flue tile; don’t guess by the crown size, or you’ll end up with a cap that sits loose and blows off in a March wind off the Piedmont.

We carry both OEM Olympia caps and quality aftermarket equivalents from Gelco and Famco that meet the same 304 stainless spec. The aftermarket route saves roughly $40-$60 on parts without sacrificing longevity, and we warranty either one the same way. Hearthstone Chimney Co. is an independent service provider, not affiliated with Olympia Chimney, so we match the part to your chimney, not to a brand contract.

Signs Your Olympia Chimney Chimney Cap Installation Is Failing

• Rust stains on the chimney breast or siding. Olympia’s galvanized caps last 8-12 years in Westminster’s climate before the coating fails; once moisture reaches the steel, the rust runs down in telltale orange streaks that homeowners spot from the driveway.
• Water in the firebox after rain. A cap with bent or corroded mesh, or a skirt that no longer seals to the flue tile, lets straight rain in. In older homes along Main Street with original terra-cotta flues, even small leaks accelerate spalling.
• Mesh sides clogged or missing entirely. The spark-arrestor mesh keeps embers off your roof and birds out of your flue. When it’s packed with creosote or torn by wind, you’ve got a fire hazard and a nesting invitation.
• Cap sitting crooked or loose after storms. Westminster sees 40+ mph gusts several times each winter; a cap with corroded mounting brackets or improper tension will lift, tilt, or disappear entirely.
• Draft problems or smoky fireplace. A cap with collapsed internal baffles, or one that’s the wrong size for your flue, creates backpressure. We see this most when a previous owner installed a cap meant for an 8-inch round flue on a 13×13 square tile.

Replacement Cost & What’s Included

The range reflects three things: the cap itself (galvanized vs. stainless, single vs. multi-flue), whether your existing mounting hardware is reusable, and whether we need to address crown damage while we’re up there. Every quote is itemized before we start - parts, labor, and any extras - so the number on the estimate is the number on the invoice. Our 90-Day Done Right Promise covers the installation in writing; if it leaks, shifts, or fails, we come back and make it right, no paperwork and no arguing.

DIY or Call Us?

An owner can safely check whether the cap is loose or visibly rusted from the ground with binoculars, and you can measure your flue tile from inside the firebox if you’re comfortable on a step stool. What you should not do is climb onto a steep or high roof to remove or install a chimney cap. The work requires proper fall protection, knowledge of how to seal the skirt without cracking the flue tile, and the judgment to spot hidden crown damage that caused the cap to fail in the first place.

We’ve rescued more than one Westminster homeowner who bought the right Olympia part online but couldn’t get a weather-tight seal, or who stripped the mounting holes in soft crown mortar and created a bigger problem. If you’re unsure, call us at (301) 215-3355. We’ll give you a straight answer about whether it’s a quick swap or something more involved, and we’ll show you photos of what we find so you can decide with your eyes open.

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