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 Flushing Owner’s Guide
An Olympia Chimney chimney cap installation in Flushing typically runs $340-$620 installed, depending on flue size, cap style, and whether your crown needs repair before mounting. We stock Olympia Chimney-compatible caps in common sizes for single and multi-flue setups, and most installations are completed in one visit. Homeowners usually discover the problem after a storm, when water stains appear on the firebox ceiling, or when they notice rust streaks running down the brickwork from a cap that’s been rattling loose for two seasons.
Which Olympia Chimney Models This Applies To
Olympia Chimney manufactures caps for their own stainless steel liner systems and for direct-vent gas appliances, but the mounting specs vary significantly between series. The 316Ti flexible liner caps fit differently than the rigid 304 stainless caps used on factory-built chimney systems. Check the stamped model number on your existing cap’s collar, or measure the flue tile opening (not the crown) - most Flushing homes with older brick chimneys run 8×8 inch or 8×13 inch flue tiles, while newer construction near downtown often has 6-inch round or 7-inch oval flues for gas inserts.
We’re not affiliated with Olympia Chimney, but we carry their caps and quality equivalents from Gelco and Copperfield. For Olympia Chimney liner systems, we typically recommend staying with OEM specs - the twist-lock collar on their 316Ti caps seals more reliably against salt-laden coastal air than generic alternatives. For standalone cap replacements on masonry chimneys, a Gelco or Copperfield cap in 24-gauge stainless often outlasts the original at a lower price point. We’ll show you both options and explain the difference before you decide.
Signs Your Olympia Chimney Chimney Cap Is Failing
- Water staining on firebox walls or ceiling. A cracked or dislodged cap lets rain run straight down the flue. In Flushing, where we get driving northeast storms off Long Island Sound, even a small gap in the cap mesh can soak the smoke shelf and saturate adjacent framing.
- Rust streaks down the chimney face. The cap’s base ring or mesh screen is corroding through. Olympia Chimney’s 304 stainless holds up well, but if a previous installer used galvanized steel to save money, five years of Queens humidity and freeze-thaw cycles will eat it alive.
- Debris, leaves, or animal nesting material in the firebox. The mesh sides of the cap are clogged, missing, or too large. Squirrels can pull through 3/4-inch mesh; we install 5/8-inch or 1/2-inch stainless mesh in tree-heavy neighborhoods near Kissena Park where the oak canopy is dense.
- Cap is visibly tilted, loose, or missing after high winds. The mounting brackets have corroded or the masonry anchors have pulled out. This is common on Flushing’s pre-war row houses where the crown was never properly poured and the cap is essentially caulked to crumbling concrete.
- Downdraft smoke or cold drafts even when the fireplace is cold. The cap’s baffle design may be wrong for your flue height and local wind patterns. Olympia Chimney’s standard wind-directional cap works for most setups, but homes on higher ground near St. John’s University sometimes need an extended draft-inducing model.
Replacement Cost & What’s Included
| Service | Price Range |
|---|---|
| Single-flue Olympia Chimney cap, standard mesh, installed | $340-$450 |
| Multi-flue cap or wind-directional model | $480-$620 |
| Crown repair or resurfacing (needed before mounting) | $280-$520 additional |
| Flue tile repair if cracked at top | $180-$340 additional |
The range depends on three things: cap size and style, whether your crown is sound enough to anchor to, and whether we need a ladder setup or full scaffolding for steep roofs above two stories. We use only 24-gauge minimum stainless, never aluminum or galvanized, and every cap installation includes a Level-2 camera inspection of the flue above - photos you can see, a plain-English verdict. Our 90-Day Done Right Promise covers the work in writing, no arguing. The number on the estimate is the number on the invoice.
DIY or Call Us?
There’s no high-tension danger in cap replacement, but there are two honest ways DIY goes wrong in Flushing. First, most homeowners measure the crown or the chimney top instead of the actual flue opening, then order a cap that sits crooked or leaves gaps. Second, bolting into a deteriorated crown without checking what’s underneath - we’ve seen caps rip out within a month because the concrete was honeycombed and the owner never knew.
What you can safely check: shine a flashlight up the flue from the firebox and look for daylight around the cap edges, or note any model numbers stamped on the existing cap collar. What we handle: ladder work on pitched roofs, proper crown assessment, and ensuring the new cap doesn’t void any remaining liner warranty. Call (516) 206-6672 and we’ll walk through what you’re seeing. If it’s straightforward, we’ll tell you. If it’s not, we’ll schedule a look and give you upfront pricing before any work starts.
FAQs
A quality stainless cap should last 15-20 years, but we’ve replaced caps after 7 years when they were mounted on saturated crowns that never dried out, or when salt air accelerated corrosion on non-316 grades. Call (516) 206-6672 for an exact quote - estimates are free.
Mesh can sometimes be rewired and minor rust spots ground and sealed, but once the base ring warps or the collar cracks, replacement is the only reliable fix. We don’t charge to assess it - we’ll show you the photos and tell you straight. Call (516) 206-6672 for an exact quote - estimates are free.
Most cap replacements take 90 minutes to two hours, including the camera inspection and photo documentation. If crown repair is needed first, plan on half a day. Call (516) 206-6672 for an exact quote - estimates are free.
We carry common Olympia Chimney, Gelco, and Copperfield cap sizes on the truck for single-flue and standard multi-flue setups. Odd sizes or special-order wind-directional models typically arrive in two business days. Call (516) 206-6672 for an exact quote - estimates are free.
A clean flue isn’t a luxury. It’s just the job done right.
If your Olympia Chimney cap is rattling, leaking, or missing entirely, call (516) 206-6672. A live person answers 24 hours a day, and we’ll send a background-checked, uniformed technician to give you upfront pricing and a written guarantee. We’ve been serving Flushing and nearby communities for over 42 years, and we plan to be here when your next cap needs attention.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Flushing and nearby areas.





Before
After
Before
After
Before
After