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 Evanston Owner’s Guide
Olympia Chimney chimney cap installation in Evanston typically runs $340-$580 for most single-flue masonry stacks, including the cap, mounting hardware, and labor. We stock Olympia Chimney-compatible caps in common sizes on our Evanston service trucks, and most replacements are completed in under two hours once the written price is approved. Homeowners usually discover the cap has failed after finding rust flakes in the firebox, water stains on the ceiling near the chimney breast, or - in the worst cases - a bird or squirrel they’ve accidentally trapped inside.
Which Olympia Chimney Models This Applies To
Olympia Chimney manufactures caps across several product lines, and the right match depends on your flue type, not just the fireplace model below. The Olympia 13×13, 13×17, and 17×17 galvanized and stainless caps fit the majority of Evanston’s pre-fabricated metal chimneys and masonry flues we encounter. For older masonry stacks in the Evanston lakefront historic district, where flue dimensions often run non-standard from century-old brickwork, we measure on-site rather than trust original specs.
To identify your cap, check the stamped model number on the existing cap’s skirt or mounting flange - it’s usually visible from the roof edge with binoculars. If the cap is missing entirely, we measure the flue tile or chase cover opening directly. We source Olympia Chimney caps through Haven’s buying network, and when an OEM cap is back-ordered or discontinued, we match with Gelco or Famco equivalents that carry the same gauge stainless and mesh spec. The difference matters: aftermarket caps with lighter 24-gauge mesh will clog with Evanston’s cottonwood seed in June and need cleaning twice a season. We spec 5/8-inch 304 stainless mesh minimum, same as Olympia’s standard.
Signs Your Olympia Chimney Chimney Cap Installation Is Failing

- Rust staining down the chimney exterior. Olympia’s galvanized caps carry a 10-15 year coating life in Illinois weather, but the freeze-thaw cycling along Evanston’s lakefront accelerates corrosion at the seams. Once the skirt rusts through, water tracks behind the flashing and into the attic.
- Water in the firebox after rain. A cap with a damaged or missing lid allows direct water entry. In Evanston’s older homes with unlined flues, that water mixes with soot to form acidic sludge that degrades the smoke chamber above the damper.
- Debris or animal nesting material visible from below. Mesh sides torn by wind load or corroded through at the welds lose their barrier function. Squirrels can squeeze through a gap the width of a thumb; we’ve pulled nests from flues in the Ridge Avenue corridor where the cap blew off in a November storm and nobody noticed until the smell arrived.
- Spalling brick or deteriorated mortar at the chimney crown. The cap’s job is to shed water past the crown. When the cap sits crooked from bent mounting legs or missing screws, water pools on the crown surface, freezes, and pops the face off bricks - a $1,200 repair that a $400 cap would have prevented.
- Downdraft smoke or odd fireplace odors in high wind. A cap with a damaged baffle or missing wind-directional hood loses its pressure-differential function. Evanston’s lake-effect winds hit northeast-facing chimneys hardest; the right cap design matters more here than inland.
Before
AfterReplacement Cost & What’s Included
| Scope | Price Range |
|---|---|
| Olympia Chimney cap (single flue, standard size) | $180-$290 |
| Mounting hardware & sealant | $45-$75 |
| Labor: removal, fit, secure, seal | $115-$215 |
| NFPA 211 Level 2 camera inspection | Included |
| Documented photo record | Included |
| Typical total installed | $340-$580 |
The range depends on three factors: cap material (galvanized vs. 304 stainless vs. copper), accessibility (steep roof pitch, multiple stories, or chimney location requiring ladder work), and whether the crown or flue tile needs repair before the new cap mounts. We deliver a written price before work starts, Clause 1 of the Haven Standard - no exceptions. Every cap installation carries our 365-Day Done Right Promise. The documented photo record, required under Clause 4, shows the cap seated and sealed before we leave.
DIY or Call Us?

Checking your cap from the ground with binoculars is sensible homeowner maintenance. Look for tilt, missing screws, rust holes, or mesh gaps. What you should not do is climb a roof to remove or install a chimney cap. The mounting hardware requires proper torque on masonry anchors; under-tightened legs loosen in freeze-thaw, and over-tightened legs crack flue tile. More critically, working at height on a roof edge with tools in hand is where DIY injuries happen.
We carry Olympia Chimney-compatible caps, Gelco, and Famco stock on our Evanston trucks. Corrine Halstead and our crew have fitted caps on pitches from the flat roofs near downtown to the steep Victorians along Greenwood Street. Call (708) 234-1174 and we’ll measure, quote in writing, and install - usually within a few days of your call, faster if water is actively entering.
FAQs
A galvanized Olympia cap lasts 10-15 years in the Chicago area, while 304 stainless runs 20+ years if the mesh is cleaned annually. The lakefront’s salt air and wind-driven rain cut that by roughly 20 percent compared to inland Evanston. Call (708) 234-1174 for an exact quote - estimates are free.
Minor mesh tears can be patched, but bent lids, rusted skirts, or stripped mounting legs mean replacement. We’ve learned that repaired caps leak again within two winters - the metal fatigue is already present. Call (708) 234-1174 for an exact quote - estimates are free.
Most Olympia Chimney cap replacements take 45 minutes to 90 minutes on-site, including the camera inspection and photo documentation. Complex roofs or crown prep add time, but we quote the full scope in writing before starting. Call (708) 234-1174 for an exact quote - estimates are free.
We stock common Olympia Chimney, Gelco, and Famco single-flue sizes on our Evanston trucks. Odd sizes or copper finishes typically arrive in two business days through Haven’s buying network. Call (708) 234-1174 for an exact quote - estimates are free.
Emberly Chimney Cleaners Evanston is an independent service provider and is not affiliated with Olympia Chimney. We source parts through Haven’s buying network to keep customer prices honest.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners Evanston at Emberly Chimney Cleaners Evanston, serving Evanston and nearby areas.





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