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.
Gelco Chimney Liner & Rebuild in White Plains: What to Know First
A Gelco chimney liner replacement or rebuild in White Plains typically runs between $2,800 and $7,500, depending on whether we are relining an existing flue or rebuilding masonry from the roofline up. We complete most Gelco reline jobs in one day; full rebuilds run two to four days. As an independent Gelco service provider, we quote every job in writing before work starts, and we only recommend a rebuild when the camera footage makes the case for it.
If you own a Gelco liner and are seeing rust stains, flue gas odor, or a liner that has started to pull away at the seams, this page is for you. Call (914) 350-5204 for a free estimate. You will get a camera inspection, a written scope, and a price before anyone touches the chimney.
How Gelco Products Fail, and How We Fix Them
- Gelco Flex-Liner (standard 316L) seam separation at the bottom corrugation. We see this most often on White Plains homes with oil-to-gas conversions where the liner was sized for a larger flue and never re-supported. The weight of the liner eventually stresses the seam where the corrugation meets the smooth section. Our fix is a full reline with proper seismic strapping, not a patch. A patch on a separated Gelco seam buys you maybe a season.
- Gelco Dual-Wall Flex with interior pitting from acidic condensate. This one catches owners off guard. The dual-wall construction handles heat well, but when a high-efficiency furnace vents through it and the flue is cold, condensate sits and etches the inner wall. We identify this with the camera before it becomes a CO issue. If the liner shows pitting across more than a third of its length, we replace rather than reline-patch. The cost difference is small. The risk difference is not.
- Gelco Heavy-Flex over-draw on shorter chimneys. Chimneys under 15 feet, common on older colonials near Gedney and Battle Hill in White Plains, sometimes pull too hard with a high-capacity Gelco liner. The appliance starves, the flame lifts, and the liner runs hotter than it should. We downsize to the correct diameter and add a draft regulation collar. It is a ten-minute calculation on paper before we ever cut a liner.
- Tear-off at the Gelco top plate. White Plains sits in a freeze-thaw band. Ice builds at the crown, and if the top plate was never sealed correctly, water tracks down the outside of the liner between the clay tile and the metal. By the time you see a rust line in the firebox, the liner jacket is compromised. We replace and reseal with a poured crown that moves water off the flue, not into it.
- OEM vs. aftermarket on Gelco appliance connectors. We can source genuine Gelco connectors when the job calls for exact-fit. But in many White Plains installs, a DuraFlex or HeatShield connector mates better with the existing appliance collar and costs less. We will show you both options side by side with the part numbers and the price difference, and you decide. What we will not do is mix mismatched brands at the joint and call it good.
Our Gelco Chimney Liner & Rebuild Process

- 1
The call: You reach a live person at (914) 350-5204. We book a Level 2 camera inspection. No payment, no obligation.
- 2
The camera goes down first. Corrine Halstead runs the video, narrates what she sees in real time, and you get the footage, not a summary. If the Gelco liner is fine, she will tell you that and charge you for the inspection only.
- 3
Written scope and price: We draw the flue path, list every part by name and number, and give you a fixed price before any work is scheduled. Clause 1 of the Haven Standard: written price, written scope, written warranty, before anyone starts.
- 4
The job: We tear out only what has to come out. New liner, top plate, crown work, or full rebuild, the sequence is the same: protect the house, remove cleanly, install to code, seal correctly.
- 5
Photo record and warranty: You get a documented photo record of the finished work, everything we touched, and the written warranty under the 365-Day Done Right Promise. If it is not done right, we make it right.
Before
AfterWhat Gelco Chimney Liner & Rebuild Costs in White Plains
The price range is real because the job varies. Here is what we quote most often in White Plains:
- Gelco 316L stainless reline, standard single-story: $2,800 to $4,200
- Gelco reline plus new top plate and crown reseal: $3,500 to $5,000
- Gelco liner replacement with smoke chamber parging: $4,000 to $5,800
- Partial rebuild (flue and crown, masonry repair above roofline): $5,500 to $7,500
- Full chimney rebuild from roofline up: $7,500 to $11,000, depending on height and brick match
What moves the price: chimney height, access difficulty (steep roofs in Gedney and Prospect Park are common), whether the existing clay tile is salvageable, and whether we are matching old brick or using new. Nothing gets added on after the fact. The written quote is the price. Call (914) 350-5204 and we will give you a free estimate after the camera work.
Why White Plains Homeowners Call Level Two Chimney White Plains for Gelco Work

Because we run the camera first and talk second. That is not a slogan. It is the order of operations. Every Gelco liner job in White Plains starts with a documented video that you keep, so you can see exactly what we saw. If the liner is sound, we will tell you that and save you the money. If it is not, you will know why before you spend a dollar.
Our techs are background-checked and uniformed. Your quote names the parts, the scope, and the warranty in writing. And when your Gelco liner needs a replacement, we can offer you DuraFlex or HeatShield alternatives side by side, with prices, so you are making an informed choice, not taking whatever one supplier happened to have in stock. The camera does not guess. Neither do we.
FAQs
No, as long as the replacement meets UL 1777 listing requirements and is installed to NFPA 211. Gelco warranties cover the liner itself, not the installation. We document the replacement with photos and a written record, which protects you if a warranty claim ever comes up with your appliance manufacturer.
Most single-story relines are done in one day. Partial rebuilds run two to three days. Full rebuilds, four days on average, depending on weather and masonry matching. You will know the exact schedule before we start.
We repair when the damage is isolated and the rest of the liner is sound. A small seam tear within reach, a loose top plate, a bad connector, those are repairs. Pitting that covers more than a third of the liner, separation at multiple seams, or a liner that has collapsed: those are replacements. We will show you the camera footage and you will understand exactly why we are recommending one over the other.
Yes, and we include it as part of the job. The camera tells us the flue diameter, the condition of the surrounding masonry, and whether your existing Gelco liner failed because of material, install, or something else. Skipping the inspection is how you end up replacing a liner that failed because of a bad crown, then watching the new one fail the same way.
Written by Corrine Halstead, Owner, Level Two Chimney White Plains at Level Two Chimney White Plains, serving White Plains and nearby areas.





Before
After
Before
After