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 Alexandria Owner’s Guide
We stock and install Olympia Chimney-compatible flue liner replacements throughout Alexandria, with most installs running between $1,400 and $3,800 depending on liner length, diameter, and access. Most Olympia Chimney flue liners we replace are on furnaces, boilers, and water heaters where the original liner has corroded through, often within 12 to 18 years of installation. You’ll usually find out when your carbon monoxide detector trips, your utility room smells like exhaust, or an inspector flags the liner during a home sale. The good news: we carry common sizes on the truck and can typically complete the swap in a single visit.
Key Takeaways
- Typical installed cost in Alexandria: $1,400-$3,800, depending on liner length and diameter.
- Most Olympia Chimney flue liners fail from acidic condensate eating through the inner wall.
- We stock common diameters (4″, 5″, 6″, 7″, 8″) and cut to length on site.
- No DIY repair is safe once corrosion creates gaps in the liner wall.
Which Olympia Chimney Models This Applies To
Olympia Chimney makes both rigid and flexible stainless steel liner systems, and we have worked with enough of them in Alexandria rowhouses and older colonials to know the quirks. The most common kits we see are the Olympia 316L flexible liners, their rigid double-wall Olympia vent systems, and their gas appliance connectors. If you have a furnace or boiler vented through a masonry chimney, the liner is almost certainly a flexible 316L or 316Ti stainless steel tube, usually 4″ or 5″ diameter for gas appliances. The way to identify what you have: look for a metal tag near the appliance connection or on the top plate at the chimney crown. That tag will show the model series and diameter, and if it is gone, we measure the old liner and match it by diameter and length.
On the OEM versus aftermarket question: Olympia Chimney liners are solid products, and there is no reason to pay a premium for an OEM box when a UL-listed 316L liner of the same diameter and alloy from a manufacturer like DuraFlex or HeatShield does the same job and meets the same code. We will tell you that straight out because it matters for your wallet. The one place to be careful is wall thickness. Cheaper liners skimp on gauge, and a thin liner in a gas flue is a false economy given how acidic gas exhaust is over the long run in Virginia humidity cycles. We carry both Olympia Chimney and quality aftermarket equivalents so you can see the difference side by side.
Signs Your Olympia Chimney Flue Liner Replacement Is Failing
- Carbon monoxide detector keeps tripping. This is the one you do not ignore. A cracked or perforated liner lets exhaust gas back into the house instead of up the flue. We treat this as an emergency call in Alexandria, every time.
- Exhaust smell in the furnace room or near the water heater. Flue gases finding a path out through liner gaps will backdraft into the living space. If you smell it, the liner has already breached.
- Visible rust stains or flaking metal at the chimney top or appliance connection. Stainless steel does not rust, so rust means acidic condensate has been pooling and eating through the liner for years. The inner wall usually goes before you ever see anything from outside.
- White or gray residue inside the flue or at joints. That is dried condensate, and it tells you the liner has been running cold and wet. Wet liners corrode from the inside out.
- An inspector or HVAC tech flagged it during a service visit. Around Alexandria, home sales and furnace replacements bring us plenty of calls where the liner failed weeks or months before anyone noticed. If a professional wrote it up, do not wait for symptoms.
Replacement Cost & What’s Included
In Alexandria, an Olympia Chimney-compatible flue liner replacement typically runs $1,400 to $3,800 installed, and the range depends on a few honest factors. Liner diameter and length are the biggest drivers, followed by chimney height and whether we need to remove the old liner or drop the new one alongside it. A straightforward 4″ liner up a single-story rowhouse chimney lands at the lower end. A 7″ or 8″ liner running 35 feet up an older colonial with tight access and a deteriorated clay tile flue to remove will push toward the top of that range.
Every quote includes the liner cut to length, the top plate and rain cap, the appliance connector, and the labor to pull the old liner and install the new one. We price the parts and labor separately on the invoice so you know exactly what you are paying for. If the old liner is still structurally sound but dirty, we will say so and clean it instead of selling you a liner you do not need. If it does not need doing, we will tell you. And like every job we do in Alexandria, this one carries the 90-Day Done Right Promise in writing.
DIY or Call Us?
An Olympia Chimney flue liner is not a tensioned component like a garage door spring, so the danger is not in taking things apart. The danger is invisible: if you cannot confirm the new liner is sealed correctly at every joint, you are venting carbon monoxide into your Alexandria home. This is one job where the failure mode is silent and potentially lethal, and we never recommend an owner tackle it without training and the right testing equipment.
What you can safely do is confirm the problem exists. Check for rust staining at the appliance connection. Look at the liner from the roof or the cleanout door with a flashlight. If you see perforation, corrosion, or gaps at the joints, that liner is done. Then call us at (571) 521-4837. Wendell and his crew will bring the liner options, show you the old one after it is out, and give you a straight answer on whether the full replacement is truly necessary or whether a section repair will hold.
FAQs
A gas appliance liner in Alexandria typically lasts 15 to 20 years before corrosion wins, and oil exhaust runs slightly shorter because of the sulfur content in the exhaust. The Virginia humidity cycle condenses moisture inside the flue every winter, and that condensate is mildly acidic, which is what eventually eats through even the best 316L stainless. A liner that stays warm and dry will outlast one that runs cold and wet, which is why proper sizing matters as much as the material grade.
Small isolated holes can sometimes be patched with a listed repair sleeve, but if the inner wall is corroded in more than one or two spots, patching is throwing money at a problem that will reappear somewhere else on the same liner within a season or two. We will quote both the repair and the replacement and show you the liner on camera so you can make the call with your own eyes.
Most Olympia Chimney flue liner replacements in Alexandria are done in a single visit, typically four to six hours from setup to cleanup. Taller chimneys, old clay tile that needs to be removed first, and tight mechanical rooms add time, and we will give you a straight time estimate before we start.
We stock common diameters including 4″, 5″, 6″, 7″, and 8″ in both Olympia Chimney and quality equivalent brands like DuraFlex and HeatShield, and we cut to length on site. If we show up and do not have your exact diameter, we will tell you before you pay anything and get it ordered for the next available day.
If you suspect your Olympia Chimney flue liner has failed, call us at (571) 521-4837. We will give you an honest assessment, an upfront price, and a camera view of exactly what is going on inside your flue before any work begins. Free estimates, no trip charge inside the county, and the 90-Day Done Right Promise on every job we complete in Alexandria.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Alexandria and nearby areas.





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