Olympia Chimney Chimney Cap Installation Nationwide

Olympia Chimney Chimney Cap Installation: The Severna Park Owner’s Guide

We stock and install Olympia Chimney-compatible chimney caps for most standard flue sizes found in Severna Park homes, with typical installed pricing between $285 and $495 depending on cap style and flue configuration. Most replacements are completed in a single visit, and we carry the common Olympia Chimney stainless steel and galvanized cap sizes on our trucks. Homeowners usually discover the cap has failed after finding rust streaks on the chimney crown, hearing animal activity in the flue, or noticing water stains on the firebox ceiling after a hard rain off the Chesapeake.

Call (443) 464-2560

Which Olympia Chimney Models This Applies To

Olympia Chimney produces caps across several product lines, and matching the right one matters more than most homeowners realize. The stainless steel series, typically marked with an “SS” prefix on the product tag, uses heavier gauge metal and welded seams that hold up against Severna Park’s salt-air exposure better than the standard galvanized line. The galvanized caps, marked “GAL” or “ECON,” cost less upfront but we’ve seen them start showing surface rust within four to five years in waterfront-adjacent neighborhoods like Round Bay and Ben Oaks.

To identify your cap, check the stamped label on the underside of the lid or the collar band. You’ll need three measurements: the flue tile outside diameter, the flue height above the crown, and whether your flue is single or multi-flue. A common gotcha in Severna Park’s 1970s and 1980s builds: the flue tile measures 8×8 inches on the outside, but the Olympia Chimney cap spec calls for 8.5×8.5 to clear the mortar wash. Order the tighter fit and you’ll be fighting installation or dealing with a cap that sits crooked and channels water inward.

We source OEM Olympia Chimney caps direct and also carry compatible professional-grade equivalents from Gelco and Copperfield when the original spec has been discontinued. Hearthstone Chimney Co. is an independent service provider, not affiliated with Olympia Chimney. We choose the part based on what will last on your particular roof, not what moves fastest through a supply house.

Signs Your Olympia Chimney Chimney Cap Is Failing

• Rust bleeding down the chimney face. Olympia Chimney galvanized caps use a zinc coating that eventually wears thin, especially on south-facing exposures where summer heat accelerates oxidation. Once the base metal shows, rust runs down the brick and etches the mortar joints.
• Mesh sides pulled away from the frame. The spot-welds on economy-grade caps fatigue from thermal cycling, Severna Park’s freeze-thaw, and the occasional bump from a squirrel or raccoon. Gaps in the mesh invite nesting, which blocks draft and creates a fire hazard.
• Water in the firebox after rain. A cap with a cracked or poorly seated lid, or one where the collar has separated from the flue tile, funnels water straight down the flue. In older homes along the B&A Trail corridor, we’ve seen this rot out damper frames and rust out smoke shelves.
• Cap sitting askew or missing entirely. High winds off the Magothy River and Severn River can lift poorly secured caps, especially the lighter galvanized units with only friction-fit installation. We anchor with stainless steel screws and a bead of high-temp sealant, not just tension.
• White efflorescence blooming on interior firebrick. This means moisture is entering and evaporating, leaving mineral salts behind. The cap is the first place to check, though crown cracks and porous brick can contribute. Our camera inspection sorts out which is which.

Replacement Cost & What’s Included

What drives the range: flue accessibility (steep roof pitch adds time), whether the existing cap has corroded onto the flue tile and needs careful extraction, and if the crown beneath needs resealing while we’re up there. We photograph the condition before we quote, agree to the number before we start, and that number appears on the invoice unchanged. Every cap installation carries our 90-Day Done Right Promise in writing, no arguing.

DIY or Call Us?

There’s nothing inherently dangerous about swapping a chimney cap if you’re comfortable on a ladder and the roof pitch is gentle. What goes wrong: the wrong measurements, the wrong attachment method, and the homeowner who doesn’t notice the crown beneath the cap is cracked and letting water in regardless. We’ve also retrieved more than one cap that blew off because someone used standard hardware-store screws instead of stainless steel rated for thermal expansion.

If your roof is steep, your flue is more than a single story up, or you’re not certain of the sizing, that’s what we’re for. Our technicians carry the common Olympia Chimney cap dimensions, the right fasteners, and the sealant that won’t turn brittle after one winter. Call (443) 464-2560 and we’ll give you a straight answer on whether this is a Saturday morning job or a call-the-sweep situation.

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