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 Annapolis Owner’s Guide
We stock and install Olympia Chimney-compatible chimney caps across Annapolis, and a typical cap replacement runs $340-$680 installed, depending on the cap style, flue dimensions, and whether the mounting hardware has seized. Most customers have us out the same week they call, not the same day, and the work itself takes about an hour once we’re on the roof. The way folks usually find out the cap failed is plain: they spot rust, they hear rain dripping down the flue, or they see a squirrel disappearing into the top of the chimney with more determination than a man who’s been through this before.

Which Olympia Chimney Models This Applies To
Olympia Chimney makes caps for their standard round flue tiles and stainless steel liner systems, and the sizing is where most people get tripped up. The cap has to match the outside diameter of your flue or liner, not the inside, and Annapolis homes built before 1970 often have odd-sized clay tiles that were never quite standard to begin with. If you’re running an Olympia Chimney stainless liner, the cap typically slides over the liner top with a hose clamp or screws; if you’re capping a bare clay tile, it’s a slip-in or clamp-on base. Top Hat Chimney is an independent local shop, not affiliated with Olympia Chimney, but we work with their components regularly because the metal holds up well in our salt air, and we carry OEM caps plus quality equivalents that fit the same measurements. Check the stamped model number or measure the flue’s outside width before you call, and we can tell you over the phone whether we have the right cap on the truck.
Signs Your Olympia Chimney Chimney Cap Installation Is Failing
- Rain or drips inside the firebox after a storm. This usually means the cap’s hood has rusted through or the mounting collar has pulled loose, leaving a straight shot for water down the flue. A failing cap in an Annapolis coastal climate often outlasts the mounting hardware, so the cap itself may be fine while the bracket quietly gives up.
- Rust streaks running down the cap or the flue tile. Surface rust on the cap’s body is the first sign the galvanized coating has failed, and from there it’s a slow march to a hole. Powder-coated caps hold up longer, but once water sits against bare steel near the Bay, you’re on borrowed time.
- Animal noise coming from the chimney. A missing or tilted cap is an open door for squirrels and raccoons, and we’ve pulled more nesting material out of uncapped flues in the Historic District than Wendell cares to remember. The sound of scratching overhead is the cap telling you it quit.
- Draft problems or smoke backing into the room. A cap that’s sunken onto the flue or clogged with rust scale and creosote restricts airflow at the top. Your flue doesn’t care how the fire looks; it cares how it breathes.
- Visible leaning or a cap sitting off-level from the street. Anne Arundel County gets real coastal gusts, and a loose cap will walk itself crooked over a season or two. Once it’s leaning, water follows the low side and works into the crown mortar beneath.
Replacement Cost & What’s Included
In Annapolis, budget $340-$680 for a standard Olympia Chimney-style cap installed, with the spread driven mostly by flue size, roof access, and whether the old mounting hardware needs to be cut off or rebuilt. That price includes the cap itself, the mounting hardware, the trip charge (waived inside our service county), and the labor to get it seated and sealed correctly. If the crown mortar under the cap has started to crumble, we’ll tell you and add that as a separate line item, never a surprise. Every cap install carries the same 90-Day Done Right Promise we put on all our work: if it’s not right, one call brings Wendell and his crew back at no charge. We quote a flat price before any tool comes off the truck, and the number you hear is the number on the invoice.
DIY or Call Us?
You can safely handle the diagnosis: look for rust, lean, or gaps between the cap and the flue, and you can measure the outside flue diameter from the ground with binoculars and a tape if you’re steady. What you shouldn’t do is get on a steep Annapolis roof with a cordless drill and a new cap under one arm, because this job wants two hands, proper ladder tie-offs, and a clear understanding of how the cap’s mounting collar seals against the flue. We’ve been called out to fix DIY installs where the cap was tight but the sealing bead was skipped, and water still found its way in. If you’re even half-unsure, call (240) 851-3653 and we’ll get someone on the roof who does this every week.

FAQs
A quality Olympia Chimney-style cap typically lasts 12 to 18 years in Annapolis, but the salt air and coastal moisture here mean the mounting hardware often fails before the cap itself does, and that’s the piece to watch. If your cap is over 15 years old and showing rust streaks, replacement is cheaper than waiting for the flue damage that follows. Call (240) 851-3653 for an exact quote; the estimate is free.
Small issues like a loose clamp or a bent spark screen can be repaired in place for $40-$120, but once the cap body has rusted through or the mounting collar has broken, repair is throwing money at a part that’s already done. We’ll show you the condition on camera before recommending either way, and Wendell’s rule holds: if it doesn’t need doing, he’ll tell you that too.
Most Olympia Chimney cap replacements in Annapolis take about an hour from ladder up to ladder down, assuming the existing hardware comes off without a fight. On older homes where the mounting screws have rusted solid, plan for closer to two hours since we may have to cut the old bracket out and re-anchor into fresh crown mortar.
We keep a range of Olympia Chimney-compatible caps on the truck in common flue sizes, plus we work with trusted brands like DuraFlex, HeatShield, and Gelco for liners and components. If your flue is an odd Historical District size, we source the right cap within a few days and schedule the install as soon as it lands. Call (240) 851-3653 and we’ll tell you over the phone whether we have your size in stock.
Written by Wendell Pike, Owner, Top Hat Chimney - Annapolis, MD at Top Hat Chimney, serving Annapolis and nearby areas.





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