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 Flue Liner Replacement: The Owings Mills Owner’s Guide
We stock and install Olympia Chimney-compatible flue liner replacement in Owings Mills, with most jobs running between $2,800 and $5,200 installed depending on height, diameter, and access. Many Olympia systems in the area are the 316Ti stainless flexible liners installed during the 1990s and 2000s, and we’re seeing a wave of them reaching end-of-life now. Most homeowners realize something’s wrong only after a Level-2 inspection turns up creosote buildup behind a cracked liner, or they notice water staining on the chimney breast after the heating season ends.
Which Olympia Chimney Models This Applies To
Olympia Chimney produced several liner series over the years, and identifying the right replacement starts with what’s still in your flue. The most common in Owings Mills homes are the Olympia 316Ti flexible liner (corrugated stainless, typically 6″ or 8″ diameter) and the older Olympia rigid 304L systems found in some pre-1995 installations. Check the collar plate at the top of the chimney or any remaining tags on the cleanout door; if those are gone, we measure the inner flue dimension and pull a camera to confirm.
Here’s where the OEM-versus-aftermarket question matters. Olympia Chimney as a brand has shifted focus over the past decade, and original-spec liners in exact replacement form aren’t always available with reasonable lead times. We source DuraFlex 316Ti and HeatShield equivalents that match or exceed Olympia’s original 316Ti spec, with the same .006″ minimum wall thickness and UL 1777 listing. For rigid systems, we sometimes transition to a compatible Gelco or Copperfield rigid run if the flue geometry allows. The key compatibility gotcha in Owings Mills: many of the older Olympia flex installations used a proprietary top plate with a narrower collar than current standard sizing. We carry adapter plates on the truck, but it’s worth knowing before ordering parts blind.
Signs Your Olympia Chimney Flue Liner Replacement Is Failing
- Flaking or spalling tile visible at the cleanout. If your chimney was originally clay-lined and the Olympia retrofit liner has cracked, combustion gases are reaching the old terracotta. Those flakes are your warning that the protective barrier is compromised.
- Water stains on interior walls near the chimney chase. A breached liner lets acidic condensate reach the masonry. In Owings Mills, where freeze-thaw cycles run hard from January through March, that moisture expands and finds its way to drywall within a season or two.
- Strong smoke smell when the furnace or fireplace is cold. This usually means gaps in the liner are allowing downdrafts to pull exhaust into the living space. With an Olympia system, the failure point is often at the flex-to-rigid transition or where the liner passes the smoke chamber.
- Excessive creosote despite regular sweeping. An oversized or deteriorating liner burns inefficiently, cooling flue gases below the dew point. We see this in the deeper fireplaces common in the McDonogh Road colonials, where the original Olympia liner may have been marginally sized for the appliance.
- White efflorescence on exterior brick. That salt staining means moisture is migrating through the masonry from the inside out. In a lined chimney, the liner should be carrying that moisture out the top; efflorescence says it isn’t.
Replacement Cost & What’s Included
| Scope | Price Range |
|---|---|
| Olympia-compatible flex liner, single-story (up to 25 ft) | $2,800 - $3,800 |
| Olympia-compatible flex liner, two-story or tall chase (25-40 ft) | $3,500 - $4,800 |
| Rigid liner conversion or complex offset | $4,200 - $5,200 |
| Insulation wrap (required for some clearances) | $400 - $650 additional |
What drives the range: height and access (steep roof pitches add time), whether the existing top plate and rain cap are salvageable, and if we need to drop a stainless rigid section through a smoke chamber offset. Every estimate includes the Level-2 camera inspection, the liner and fittings, professional installation, a new rain cap, and cleanup. We agree to the full number before booking. The 90-Day Done Right Promise covers the installation, and the liner itself carries the manufacturer’s 20-year or lifetime warranty depending on the series we specify.
DIY or Call Us?
There’s a short list of things an owner can safely check. Confirm the damper opens fully. Look down from the top with a flashlight for obvious gaps or collapsed sections. Check that your CO detector is functional and less than seven years old. That’s about it.
Flue liner replacement is not a homeowner project. You’re working at height with a system that, done wrong, vents carbon monoxide into bedrooms or creates a chimney fire hazard behind the wall. The liner must be properly sized to the appliance using NFPA 211 tables, supported at the correct intervals, and terminated with the right cap for your fuel type. We’ve found Olympia liners in Owings Mills that were “replaced” by a handyman using HVAC duct - that comes out, every time, and we start over. If you’re seeing the symptoms above, call us at (443) 998-2617. We’ll inspect, show you photos, and give you a price that doesn’t change.
FAQs
A 316Ti stainless liner in regular oil or gas service typically lasts 15 to 25 years, though we’ve pulled Olympia installations at 12 years in homes that burned unseasoned wood or ran the furnace with poor draft. The freeze-thaw cycling and acidic condensate from efficient modern appliances both shorten lifespan in this climate. Call (443) 998-2617 for a camera inspection if you’re in that window.
Small, accessible gaps in the top two feet can sometimes be addressed with a HeatShield cerfractory seal if the underlying liner is structurally sound. If the crack runs below the smoke chamber or the liner has multiple failure points, replacement is the only code-compliant fix. We don’t guess; we camera it and show you.
Most Olympia liner replacements in Owings Mills are completed in a single day, start to finish. Tall chimneys or those with tight offsets may run into a second morning. Our technicians arrive with the liner, fittings, and adapter plates on the truck, so there’s no waiting on parts.
We stock Olympia Chimney-compatible 316Ti flex liners in 6″ and 8″ diameters, along with DuraFlex and HeatShield equivalents that match or exceed original specs. We are an independent service provider, not affiliated with Olympia Chimney. For rigid systems or unusual sizes, we custom-order with a 3-to-5-day lead time and schedule install once materials are in hand.
At Hearthstone Chimney Co., we’ve been working on chimneys in Owings Mills long enough to know which houses have the original Olympia installations, which have been cobbled together, and what it actually takes to make them right. Russell Haines and our crew document every flue with photos you can see and a plain-English verdict you can understand. Tell me what you’re seeing, and I’ll tell you what it actually means. If your Olympia liner is showing its age, call (443) 998-2617 - a live person answers, 24 hours a day, and we’ll get you scheduled for a free estimate.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Owings Mills and nearby areas.





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