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.
Fast, Reliable Chimney Liner & Rebuild Across Randallstown
Chimney liner replacement in Randallstown typically runs $2,800 to $6,500 depending on flue size, access, and whether the crown needs rebuilding at the same time. Most liner jobs on the 1950s-to-1970s brick ranch homes and split-levels along the Liberty Road corridor are done in a single day, with a second visit if the crown has to cure. Wendell Pike and his crew have been inside more Randallstown chimney stacks than we can count, and we’ll tell you straight what needs doing and what can wait. Call (443) 332-7798 for a free estimate with no trip charge inside the county.
Why Top Hat Chimney Is Randallstown’s Preferred Chimney Liner & Rebuild Company
We’re not a franchise that rotated into Randallstown last spring. Top Hat Chimney has worked communities like Randallstown since 1999, and Wendell puts his name and license number on the work. He’ll run into you again at the Liberty Road Giant or the Saturday morning hardware run, and he knows that. The 90-Day Done Right Promise comes in writing on every liner and rebuild job, so if something isn’t right, one call brings the crew back at no cost to you.
Our Chimney Liner & Rebuild team answers the phone with a live person around the clock. Not a voicemail box. Not a call center. You get a background-checked, uniformed sweep who gives you a real arrival window and calls if that window slips. And before a single tool comes off the truck, you know the price. The number on the invoice matches the number you heard on the phone.
Randallstown homeowners have been burned by national outfits that quote one price on the phone and another at the door. We hear it on almost every first call. Wendell built Top Hat Chimney as the alternative: a locally owned, owner-operated sweep who publishes his address and license, works with trusted brands like DuraFlex and Copperfield, and stands behind the job in writing.
Our Chimney Liner & Rebuild Services in Randallstown
Stainless Steel Liner
A stainless steel liner is the long-term fix for Randallstown chimneys that have outlived their original clay tiles. We install DuraFlex and Copperfield stainless liners sized to the flue, insulated where the code requires it, and connected to the appliance or fireplace with a proper top plate and cap. For older Randallstown brick ranches where the clay is spalled or cracked from decades of gas condensation, this is usually the permanent answer.

Flexible Liner
Flexible liners make sense in Randallstown split-levels and cape cods where the flue has an offset or bend that a rigid liner can’t navigate without tearing out masonry. We run the flex liner through the existing clay, insulate it where needed, and terminate it with a rain cap. It’s often the cleanest answer when only the furnace flue needs relining and the fireplace side is still sound.

Liner Replacement
The most common call we get in Randallstown is a liner replacement on a 1960s chimney that was built for oil-furnace exhaust and switched to gas sometime in the 1980s or 1990s. The cooler gas exhaust condenses inside the old clay, and over 30 or 40 years that acidic condensate spalls the tile from the inside out. We’ll show you the camera footage before any liner comes out, and we’ll tell you plainly whether replacement is needed now or can safely wait another season.

Partial Rebuild
A partial rebuild addresses the section of the Randallstown chimney that has failed, usually the crown, the top few courses of brick, or a cracked smoke chamber. Many of the combined stacks in Randallstown serve both a living-room fireplace and a furnace flue in the same masonry structure, so when moisture gets in through a hairline crown crack, it damages both flues. We rebuild the damaged section, match the mortar and brick where possible, and leave the rest of the stack intact.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Randallstown
We install and service liners from DuraFlex, Copperfield, Famco, and HeatShield, and we keep common parts stocked for fast turnaround on Randallstown jobs. If you already have a HeatShield resurfacing or a Famco cap that needs attention, we work on those too. No one should have to wait two weeks for a part that keeps the furnace off. We carry what Randallstown homes actually need, not a warehouse catalog we’re guessing from.
Common Chimney Liner & Rebuild Problems We See in Randallstown Homes
- Spalled clay tiles from oil-to-gas conversion. Randallstown’s housing stock went up between roughly 1955 and 1975, built for oil heat. When those homes converted to natural gas, the original clay liners started absorbing acidic condensate they were never rated for. The tiles spall and crack from the inside, letting flue gases leak into the brick mass.
- Hairline crown cracks from freeze-thaw cycles. Baltimore County gets 20 to 30 freeze-thaw cycles a year. On a 50-to-70-year-old Randallstown chimney, those cycles open tiny cracks in the crown that let water into the brick. The moisture then migrates to the flue liner and smoke chamber, turning a simple crown repair into a full liner assessment.
- Backdrafting in partially relined combination stacks. We regularly find Randallstown chimneys where a flex liner was run down the furnace flue during a gas conversion but the fireplace flue was left as original clay. The uneven draft in the shared chimney mass pushes smoke back into the living room, and the homeowner blames the damper. It’s usually a liner-condition problem.
- Tar glazing on wood-stove flues. Randallstown has its share of wood stoves doing real heating work, and those flues load up heavier than a decorative fireplace ever will. First-degree creosote is a brush job. Third-degree is a glaze that a brush won’t touch. The safe sweeping interval on a working wood stove is shorter than most people think.
Pricing for Chimney Liner & Rebuild in Randallstown, MD
A stainless steel liner replacement in Randallstown runs $2,800 to $4,500 for a single-flue furnace liner, and $3,500 to $6,500 when the fireplace flue needs relining at the same time. A partial rebuild, crown and top courses included, adds $1,800 to $3,200 depending on how many courses of brick have to come out. A full chimney rebuild in Randallstown, down to the roofline or below, starts around $7,000 and goes up from there based on height, access, and whether the stack serves two flues.
What moves the number: flue diameter, how much of the crown has failed, whether scaffolding is needed, and whether we’re pulling the old clay or relining beside it. You’ll get a fixed price before work starts, and it’s the same number on the invoice. If you have a written estimate from another company, bring it in. We’ll give you a free second opinion, and we’ll match it if the scope is the same and the work is done right. Call (443) 332-7798 to set up the estimate.
We Also Serve Cities Near Randallstown
We work throughout the Liberty Road corridor and the surrounding Baltimore County suburbs, including Owings Mills, Catonsville, Sykesville, and Columbia. If you’re in one of those communities, you’ll get the same Chimney Liner & Rebuild in Randallstown standard: upfront pricing, a live person on the phone, and the 90-Day Done Right Promise in writing.
Serving Randallstown, MD - Our Local Coverage Area
We’re based in the Randallstown area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Liner & Rebuild in Randallstown
Because they were built for oil. The vast majority of Randallstown’s brick ranch homes and split-levels went up between the mid-1950s and mid-1970s, and their chimneys were sized and lined for high-temperature oil-furnace exhaust. When those homes converted to natural gas, the cooler, acidic exhaust started condensing inside the original clay tiles, spalling them from the inside. Newer subdivisions were built with gas-rated liners from day one, so they don’t see this failure nearly as often. If your Randallstown home still has original clay and burns gas, an inspection is worth the hour. Call (443) 332-7798 and Wendell will put a camera down the flue and show you exactly what’s there.
You can, but you need to know what you’re doing to the draft. Many Randallstown split-levels have a combination stack where both flues share the same brick mass, and if one flue is relined and the other is left as aged clay, the uneven draft can push smoke back into the living room. We won’t reline just the fireplace side without checking what the furnace flue is doing, because the two don’t work independently in a shared stack. Sometimes relining both at once is the only way to get a clean draft on both. We’ll show you the camera footage and let you decide with real information in front of you.
Once a year, burn or no burn. Chimneys break in the off-season too. For a wood stove doing real heating work in a Randallstown ranch, the creosote loading is heavier and the safe sweeping interval is shorter than the old once-a-year rule if you’re burning soft wood or running the stove low and slow. We’ll tell you what your burning practice is leaving on the flue walls and whether it’s first-degree, a brush job, or third-degree, a glaze that needs more than brushing. Most Randallstown wood-stove users do well with an annual sweep and a mid-season look if they’re burning daily through January and February.
If the clay tiles are intact and rated for what you’re venting, no. We’ll tell you that plainly. But if the tiles are spalled, cracked, or glazed from decades of gas condensation or heavy wood burning, a DuraFlex or Copperfield stainless liner is the fix that lasts. It’s a one-time cost that turns a failing 1960s flue into a properly sized, properly insulated vent that will outlast the furnace it serves. We don’t sell liners to people who don’t need them. The camera verdict comes first, every time, no exceptions.
That’s efflorescence, and it means water is moving through the brick. Somewhere above that staining there’s a failed crown, a damaged mortar joint, or a cracked cap letting moisture into the masonry, and the water is carrying soluble salts to the surface as it evaporates. On Randallstown’s 50-to-70-year-old chimneys, it’s almost always a crown issue from decades of freeze-thaw cycles. The fix is usually a crown rebuild and repointing, not a liner replacement, but you want it addressed before the moisture reaches the flue and starts the liner failing too. We’ll find the entry point and tell you what it costs to close it.
Call Top Hat Chimney for Liner & Rebuild Work in Randallstown
If your Randallstown chimney is 50 years old or more and still venting through original clay, get it looked at before burning season. Wendell and his crew will put a camera down the flue, show you the footage, and give you a plain-English verdict on what needs doing and what can wait. No upsell, no pressure, no number that changes at the door. We have $40 off any repair over $200, a free second opinion on any written estimate, and a 10% discount for seniors and veterans, always. Call (443) 332-7798 today and talk to a live person, around the clock. It may well be Wendell himself picking up.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Randallstown and surrounding Baltimore County since 1999.





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