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 Cleaning Service in Greenwich, CT
We clean, inspect, and provide Gelco repair in Greenwich as an independent service provider. Level Two Chimney Greenwich has worked on Gelco liners, caps, and dampers throughout backcountry estates and coastal neighborhoods for years, and we quote every job in writing before any work starts. If you have a Gelco fireplace or liner that needs attention, call (516) 399-5497 for a free estimate.
Why Greenwich Homeowners Choose Gelco Chimney Cleaning
Our Chimney Cleaning & Sweep services for Gelco in Greenwich mean working with a company that sees these specific systems weekly, not occasionally. We’re an independent Gelco service provider. Level Two Chimney Greenwich is not affiliated with or authorized by Gelco, and we don’t pretend otherwise. What we bring is hands-on familiarity with Gelco’s liner systems, top-mount dampers, and multi-flue caps, built from years of service calls across Greenwich’s older housing stock. Our techs know the failure patterns these products develop in coastal Connecticut conditions: salt-driven mortar erosion near Old Greenwich and Riverside, acidic condensate pinholes in backcountry estate flues, and creosote glaze from the low-temperature fires Greenwich’s mild winters encourage. Every visit includes a camera-scan inspection and a documented photo record under Clause 4 of the Haven Standard. Call (516) 399-5497 to book.
Why Trust Level Two Chimney Greenwich for Your Gelco Chimney Cleaning?

Gelco components appear in a lot of Greenwich chimneys, but they don’t all age the same way. A Gelco 6-inch rigid liner in a 1920s backcountry estate faces different stresses than the same liner in a 1980s colonial near Cos Cob. Our technicians have handled Gelco Chimney Cleaning in Byram, CT and across Fairfield County enough to recognize what’s normal wear and what’s a real problem.
Corrine Halstead owns Level Two Chimney Greenwich and has spent years working inspections and cleanings across Fairfield and Westchester counties. She studied building systems technology at New York City College of Technology before moving into chimney work full-time, and she’s known for writing up exactly what the camera shows. Nothing added, nothing softened. Her crew has worked chimneys from backcountry Greenwich estates to the older colonials near Cos Cob, and she can read a firebox before the camera even finishes its pass. That matters when you’re dealing with Gelco components that have been in service for 20-plus years and need an honest assessment, not a sales pitch.
We use OEM Gelco components when they’re available. When they’re not, or when an aftermarket part does the job better at a fair price, we say so in writing. That’s the difference between a company that services Gelco products and one that understands them.
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AfterCommon Gelco Chimney Cleaning Problems We Fix in Greenwich
Gelco products are generally well-built. But Greenwich’s climate, housing stock, and burning habits create specific failure modes we see repeatedly. Here are the five most common:
- Pinhole leaks in Gelco stainless steel liners. Acidic condensate from gas or low-temperature wood burning pools at flue offsets and eats through the liner wall over time. We find these pinholes most often in Gelco 6-inch rigid liners on backcountry estates where chimneys run cool. The fix is a stainless repair sleeve, not a full liner replacement, in most cases.
- Creosote glaze inside Gelco liners after low-temperature burning. Greenwich’s coastal winters encourage short, intermittent fires that never get the flue hot enough to burn off Stage 1 creosote. Over a season or two, that deposits a hard glaze on Gelco liner walls. This requires mechanical brushing plus a chemical treatment to break down the glaze and restore proper draft.
- Warped Gelco top-mount damper frames from repeated heat cycling. We see this on Gelco dampers that have been in service for 10-15 years. The frame warps slightly with each heating and cooling cycle until the seal fails. A failed damper seal lets conditioned air escape year-round, and in Greenwich’s heating season, that’s money going up the flue. The fix is usually a damper frame replacement, not a full damper rebuild.
- Loose rivets on Gelco multi-flue caps causing vibration in high winds. Greenwich’s coastal exposure means wind loads on chimney caps are real. Rivets work loose over time, especially on multi-flue caps spanning several flues. You’ll hear it on windy nights: a metallic rattle from the chimney. We re-rivet and re-secure the cap, or replace it if the metal has fatigued.
- Offset and separation in older Gelco liner installations. Some Gelco liners installed in the 1990s and early 2000s were not properly supported at offsets. Twenty-plus years of thermal expansion and settling in Greenwich’s old masonry has caused sections to shift out of alignment. The camera shows us exactly where, and we have the connectors to correct it.
Every one of these is fixable. The important part is seeing the problem clearly before quoting a repair. That’s why the camera-scan inspection on every visit isn’t an add-on. It’s how we work.
Gelco Parts & Our Repair-vs-Replace Approach

OEM Gelco parts are our first choice when available. Gelco 6-inch rigid liner sections, 5.5-inch oval flexible liner connectors, standard multi-flue caps, and top-mount dampers are all items we can source quickly through our supplier network. When a Gelco component has been discontinued, or when the aftermarket equivalent is genuinely better for a specific application, we recommend the aftermarket part and explain why in writing.
Our repair-first stance is simple: if the existing Gelco part can be safely restored, we restore it. A pinhole leak in a Gelco liner doesn’t always mean a liner replacement. A stainless repair sleeve, properly installed and sealed, often gets the liner back to safe operating condition for years. The same applies to dampers, caps, and connectors. We replace only when repair would compromise safety or when the part is too far gone to restore. If you’d like a second opinion on any written estimate you’ve received, bring it to us. We’ll give you our assessment free. Call (516) 399-5497.
Our Gelco Service Process - Step by Step
- 1
Diagnosis. We run a camera down the Gelco liner and document everything: liner condition, offset alignment, cap integrity, damper seal. You see the photos. We explain what they show in plain terms: spalling, creosote class, pinhole leaks, damper warp. Nothing hidden.
- 2
Written quote. We put the scope and price on paper before any work starts. That’s Haven Standard Clause 1: H.A.V.E.N. - have it in writing. The quote includes parts, labor, and warranty terms. No verbal estimates, no “we’ll see once we’re in there.”
- 3
Repair or cleaning. For cleaning, we brush the Gelco liner to remove creosote (Class I through Class III) and document the result on camera. For repairs, we use OEM Gelco parts when available and compatible aftermarket parts when they’re the better choice. We’re uniformed, background-checked, and we text you when we’re on the way.
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Testing. After the work, we re-run the camera and verify draft with a smoke test. If the problem was a drafting issue, we show you the before and after.
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Warranty. Every job is backed by the 365-Day Done Right Promise. If it’s not done right, we make it right. No fine print games.
During an annual sweep on Riverside Avenue, our tech found a Gelco 6-inch rigid liner with a 2-inch pinhole near the flue offset. Typical of acidic condensate pooling. We removed the damaged section, installed a compatible stainless steel repair sleeve, and brushed the entire liner to remove Stage 2 creosote. The homeowner’s Gelco fireplace drafts correctly now and passes a Level 1 inspection. That’s the kind of outcome we aim for on every call.
Gelco Products We Service & Install in Greenwich

We work on the Gelco product lines most common in Greenwich homes:
- Gelco 6-inch round rigid chimney liner - the workhorse liner in many backcountry estate flues and older colonials.
- Gelco 5.5-inch oval flexible liner - often found in tighter flues where a round liner won’t fit, common in pre-1940 coastal homes in Old Greenwich and Riverside.
- Gelco standard multi-flue chimney cap - the cap you’ll see on multi-stack chimneys serving separate fireplaces. These are the ones that develop loose rivets in Greenwich’s wind.
- Gelco top-mount damper - the damper style prone to frame warping after years of heat cycling.
We also install these products where a replacement is needed. Materials are sourced through Haven’s buying network, which keeps pricing honest for our Greenwich customers. We also work with DuraFlex and HeatShield products, and carry connectors, caps, and dampers for all three brands locally for faster turnaround.
We Also Service These Brands
Level Two Chimney Greenwich is not a single-brand shop. We service and install chimney components from DuraFlex, HeatShield, and other major manufacturers alongside Gelco. If your Greenwich home has a mixed system (a Gelco liner with a HeatShield crown coat, for example), we can handle the whole job in one visit rather than referring you out.
FAQs - Gelco Chimney Cleaning Service in Greenwich

No. We are an independent Gelco service provider, not an authorized dealer or warranty provider. That independence means we recommend what’s best for your chimney, not what a manufacturer’s program requires.
Yes, when they’re available and appropriate. For discontinued Gelco liner connectors or caps, we recommend quality aftermarket parts and explain the trade-off in writing before proceeding. You always know exactly what’s going into your chimney.
A standard Gelco chimney cleaning and camera inspection takes 60 to 90 minutes. Repairs like liner patching or damper replacement typically take two to four hours, depending on access and scope. On Greenwich backcountry estates with multiple flues in one stack, a full diagnostic can take half a day. We’ll give you a realistic time window when you book.
We service and install Gelco 6-inch round rigid liners, 5.5-inch oval flexible liners, standard multi-flue caps, and top-mount dampers. We also offer Gelco repair in Port Chester for these same products, which are most commonly installed in Greenwich homes built before 1980.
No. Cleaning and inspecting your Gelco components does not void any manufacturer warranty. In fact, neglecting regular maintenance is the more common reason claims get denied. We document everything with photos so you have a record if a warranty question ever comes up.
Gelco chimney cleaning in Greenwich typically costs $189 to $349 per flue, depending on liner length, creosote class, and access conditions. Repairs like a stainless repair sleeve run $150 to $400 depending on the section size. A Gelco cap replacement is typically $250 to $600 installed. We quote every job in writing before any work starts, so the number on your estimate is the number you pay. Call (516) 399-5497 for an exact quote - estimates are free.
Book Your Gelco Service in Greenwich, CT
If your Gelco chimney needs cleaning, inspection, or repair, call Level Two Chimney Greenwich at (516) 399-5497. We’ll schedule a visit, put the price in writing before we start, and show you the camera evidence when we’re done. Written by Corrine Halstead, Owner at Level Two Chimney Greenwich, serving Greenwich since 2009.





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