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 Ellicott City Owner’s Guide
Olympia Chimney flue liner replacement in Ellicott City typically runs $1,800 to $3,400 installed, depending on liner diameter, chimney height, and whether the clay tiles have shifted or cracked. We stock Olympia Chimney-compatible stainless steel liners in common diameters from 5.5″ to 8″ and can usually inspect, measure, and install within a single booked visit. Most Ellicott City homeowners discover the problem during a routine sweep when our camera finds gaps, glaze, or spalled clay that the naked eye cannot see from below.
Which Olympia Chimney Models This Applies To
Olympia Chimney produces venting components across several series, and the liner must mate correctly with the collar and appliance adapter at both ends. We most commonly replace liners paired with Olympia’s pellet vent inserts, their gas direct-vent systems, and the older wood-burning chimney systems still found in 1970s and 1980s homes around Ellicott City’s historic district. The critical measurement is the inner diameter at the thimble, not the outer pipe dimension, a distinction that trips up about one in three homeowners who try to self-spec.
To identify your part, look for the stamped model tag on the outer pipe near the cleanout tee or cap. If the tag is weathered, which it often is after twenty Maryland winters, we measure the flue with a digital caliper and cross-reference to Olympia’s sizing charts on site. We are an independent service provider, not affiliated with Olympia Chimney, and we source both OEM Olympia collars and aftermarket equivalents from DuraFlex and Gelco when the original spec has been superseded. For most Ellicott City replacements, a 316Ti stainless liner with an Olympia-compatible top plate performs identically to OEM at a lower parts cost, though we always confirm appliance clearances before substituting.
Signs Your Olympia Chimney Flue Liner Replacement Is Failing
- White or tan efflorescence on the exterior brick. This means moisture is migrating through cracks in the clay liner and leaching salts from the mortar. In Ellicott City’s freeze-thaw climate, this accelerates every winter and will eventually spall the brick face if the liner is not addressed.
- Bits of clay tile in the firebox or cleanout. These shards indicate the terracotta liner is spalling from thermal shock or age. Once tiles begin shedding, the flue gas path is compromised and creosote can collect in the gaps.
- Smoke or odor seepage into upstairs rooms during a fire. This usually traces to a cracked liner joint or shifted tile that allows exhaust to enter the chimney cavity. The flue doesn’t lie - we just translate what it’s telling you.
- Unusually rapid creosote buildup despite burning seasoned hardwood. A damaged liner creates turbulence and cooler spots where creosote condenses faster. We see this pattern often in homes near the Patapsco River valley where humidity already runs high.
- A rusted or detached cap with visible liner gaps at the top. Water entry through a failed cap corrodes metal liners and erodes mortar between clay tiles. By the time the cap is visibly bad, the liner usually needs attention too.
Replacement Cost & What’s Included
| Component | Typical Range in Ellicott City |
|---|---|
| 5.5″ – 6″ diameter stainless liner (materials) | $680 – $1,100 |
| 7″ – 8″ diameter stainless liner (materials) | $920 – $1,450 |
| Labor: removal, installation, insulation pack | $780 – $1,400 |
| Top plate, rain cap, and connector fittings | $240 – $450 |
| Total installed replacement | $1,800 – $3,400 |
What drives the range: chimney height above the roofline, whether the existing clay must be removed or can be left in place as a surround, and access difficulty on steep pitches common in Ellicott City’s older neighborhoods. Every estimate we provide is itemized upfront - the number on the estimate is the number on the invoice. Our 90-Day Done Right Promise covers the installation in writing with no arguing. Photos you can see, a plain-English verdict.
DIY or Call Us?
An owner can safely check three things: whether the cap is intact, whether the damper opens fully, and whether debris is visible from below with a flashlight. Do not attempt to remove a metal liner or break out clay tiles yourself. The work involves working at height on a pitched roof, handling sharp stainless edges, and properly insulating the liner to maintain clearances to combustibles - a code requirement in Howard County that inspectors enforce. Improper installation risks carbon monoxide intrusion into living spaces or a chimney fire from inadequate draft. We carry Olympia Chimney-compatible liners on the truck in diameters we see most often in Ellicott City, and Russell Haines or one of our background-checked, uniformed technicians can measure, spec, and install in a single visit. Call (410) 305-7884 for a free estimate and we’ll be there when we say.
FAQs
A 316Ti stainless steel liner properly installed with insulation typically lasts 15 to 25 years in Maryland’s climate. The freeze-thaw cycles and acidic condensation from efficient modern appliances are harder on liners than the old days of drafty masonry, so we recommend a Level-2 camera inspection every five years after year ten. Call (410) 305-7884 to schedule - estimates are free.
Minor gaps at the top joint can sometimes be addressed with a HeatShield cerfractory seal if the clay tiles are otherwise sound, but this is not a permanent solution for cracked or shifted tiles throughout the flue. We document the condition with photos and tell you plainly when repair is reasonable and when replacement is the square deal. Call (410) 305-7884 for an honest second opinion.
Most Olympia Chimney flue liner replacements in Ellicott City are completed in four to six hours from arrival to final smoke test. Tall chimneys on homes near the historic district, where access is tight and the flue run exceeds twenty-five feet, may require a second morning. We complete most jobs in a single visit and never leave a chimney unsafe overnight.
We stock 316Ti stainless liners in 5.5″, 6″, 7″, and 8″ diameters with Olympia-compatible top plates and connectors on our service trucks. Less common sizes or specialized pellet vent configurations may require a two-day order from our distributor. We’ll know within ten minutes of measuring whether we can proceed same-day or need to book a return.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Ellicott City and nearby areas.





Before
After
Before
After
Before
After