Olympia Chimney Chimney Cap Installation Nationwide

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

We stock and install Olympia Chimney-compatible chimney caps for most residential flue sizes, with typical installed prices in Waltham running $285-$495 depending on cap style and whether the flue tile needs modification. Most replacements are completed in a single visit, and we carry common Olympia Chimney cap sizes on our trucks. Homeowners usually discover the problem after a storm blows the cap off, or when water starts dripping down the flue during a hard Waltham rain.

Call (781) 905-8338

Which Olympia Chimney Models This Applies To

Olympia Chimney produces stainless steel and galvanized chimney caps across several product lines, including their standard single-flue caps, multi-flue covers, and the wind-resistant models popular in New England. The critical detail is matching the cap to your flue tile outer dimension, not the flue opening. Olympia Chimney caps are sized by the outside width of the clay flue tile, typically 8×8, 8×13, or 13×13 inches for Waltham’s pre-1990s housing stock.

To identify your model, check for the stamped part number on the existing cap’s skirt or mounting flange. If the cap is missing, measure the flue tile with a tape measure, not the chimney crown. Olympia Chimney’s OEM caps use 304-grade stainless with a lifetime warranty, but we also source quality aftermarket equivalents from Gelco and Famco when the original series has been discontinued. The aftermarket route saves roughly $40-$70 on parts without sacrificing weather resistance, though we always confirm the gauge and screen mesh match Olympia’s spec before installing. Hearthstone Chimney Co. is an independent service provider with no affiliation to Olympia Chimney.

Signs Your Olympia Chimney Chimney Cap Installation Is Failing

• Water dripping into the firebox after rain. The cap’s mesh screen has corroded through or the lid has pulled away from the skirt, letting precipitation run straight down the flue. In Waltham’s freeze-thaw cycles, this accelerates flue tile deterioration.
• Debris or animal nesting material in the fireplace. Squirrels and raccoons push through damaged or missing screens. An Olympia Chimney cap with intact ¾-inch mesh prevents this; once the mesh gaps, animals treat your flue like a hollow tree.
• Rust stains down the chimney exterior. Galvanized caps last 7-12 years in Massachusetts humidity before the coating fails. The rust you see is the cap bleeding onto brick or siding, and it means the metal underneath is thinning.
• The cap is visibly tilted or loose after wind. Olympia Chimney’s screw-tighten mounting works until the flue tile chips or the stainless bands fatigue. A tilted cap catches wind like a sail and will eventually depart the roof entirely.
• Smoke backing up into the room on startup. The cap’s lid may have collapsed downward or the screen is clogged with creosote and leaf debris, choking draft. This is the symptom that gets dangerous fast if it blocks exhaust gases.

Replacement Cost & What’s Included

What drives the range: cap style (single-flue vs. multi-flue), whether your flue tile is standard or an older odd size, and if the existing mounting surface needs repair. We quote the full number before booking, and that number does not change. The 90-Day Done Right Promise covers the installation, and the cap itself carries the manufacturer’s warranty, lifetime for stainless, 5-year for galvanized.

DIY or Call Us?

An owner can safely check whether the cap is present and level from the ground with binoculars, and can confirm water intrusion by looking at the firebox ceiling after rain. What you cannot safely do is climb a Waltham roof with a 12/12 pitch in November to wrestle with sheet metal and masonry screws.

Chimney cap installation requires working at height with power tools near a flue opening. A mis-mounted cap blows off, damages the roof, or blocks exhaust and risks carbon monoxide backup. We carry Olympia Chimney-compatible caps, Gelco, and Famco equivalents on our trucks, and most Waltham replacements are done in under 90 minutes. Call (781) 905-8338 for a free estimate and we’ll give you the exact price before we book.

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