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 in Everett, MA | Level Two Chimney Cambridge
Everett Chimney Cleaning & Sweep for Gelco systems typically runs $180-$340 for a standard sweep with Level 2 camera inspection, and most triple-decker jobs need multi-flue diagnostics rather than a single-flue pass. We’re an independent shop, not a Gelco-authorized dealer, and we’ve rebuilt more Gelco systems across Everett’s coal-era stacks than any crew in the area. Call us at (857) 309-1908 for a written estimate before any work starts.
Why Everett Residents Choose Us for Gelco Service
Corrine Halstead learned the trade at CUNY Kingsborough’s building construction program in Queens before deciding chimneys were the one system nobody checked until something failed. She’s spent the better part of two decades running crews through Greater Boston, and Level Two has put cameras up flues in everything from triple-deckers near Inman Square to century-old rowhouses a block off the Charles. The camera doesn’t editorialize - it just shows you what’s there.
That approach matters in Everett more than most places. The city’s triple-decker housing stock, built between 1890 and 1930, was designed for coal furnaces with shared masonry stacks that were never properly resized when individual units converted to oil or gas. We know Gelco’s product lines because we stock them: UltraFlex liners for the odd-sized flues, ArmorFlex insulated systems where condensation is eating the seam welds, and multi-flue caps that actually fit spalled 1890s crowns. We source genuine Gelco components through our Haven buying network, and we use quality aftermarket stainless when a custom length is needed. Every job gets a written price, written scope, and written warranty before work begins - Haven Standard Clause 1. Every visit includes a documented photo record - Clause 4, running continuously since 2009.
Our Everett service area covers the full city, from the Mystic River side to the Malden line, and we treat every call as a multi-flue diagnostic because that’s what these buildings require.
Common Gelco Chimney Cleaning Problems We Solve in Everett

- Uninsulated Gelco liners rusting at seam welds. Gelco stainless liners installed during mid-century oil conversion often lack insulation. Everett’s persistent Mystic River humidity condenses on the exterior, and the freeze-thaw cycle blows out the seam welds. We find this on the river-facing side of stacks more than anywhere else in the metro.
- Crushed or torn flex liners in shared triple-decker stacks. Original Gelco flex liners get damaged during later HVAC swaps, leaving an abandoned ground-floor flue that backdrafts into upper-unit living space when nor’easter winds hit the stack. We’ve traced exhaust odors into second-floor kitchens more than once.
- Gelco caps lifting off spalled masonry crowns. The mounting flange on Gelco caps loses its seal after repeated freeze-thaw cycling on 1890-1930 brick. Water wicks down the liner and stages creosote in adjacent flues. We replace with custom Gelco multi-flue caps sized to the actual crown condition, not the original drawing.
- Missing rain caps and storm collars at liner terminations. Gelco liner terminations set without proper weatherproofing concentrate efflorescence and interior liner cracking on the Mystic-facing side. We re-terminate with storm collars and document the moisture readings.
- Negative-pressure backdrafting into abandoned flues. A sealed high-efficiency furnace leaves its original flue dead while adjacent units still vent. The pressure differential pulls exhaust into living space. Camera inspection finds it. Written scope fixes it.
Before
AfterGelco Service in Everett: What Local Conditions Mean for Your Equipment
Everett’s triple-deckers were built with shared coal-flue stacks that were never re-sized when each unit converted to oil or gas separately, so a single chimney can legally and physically contain three unrelated venting systems with different draft pressures. That’s why we treat every Everett Gelco service call as a multi-flue diagnostic, not a single-flue sweep - the abandoned ground-floor flue next to two live oil flues will backdraft in a nor’easter.
On a triple-decker off Broadway in Everett, our tech camera-inspected a Gelco UltraFlex liner in the top-floor flue and found the ground-floor unit’s old Gelco liner abandoned and crushed behind a sealed high-efficiency furnace, pulling negative pressure that pushed exhaust odor into the second-floor kitchen. We removed the crushed section, installed a new insulated Gelco ArmorFlex liner sized to the original coal-era flue, and fitted a custom Gelco multi-flue cap with a storm collar; the backdraft smell cleared that same week.
This pattern is nearly a signature condition of Everett’s housing. The Gelco sales & service we provide starts with recognizing it.
Gelco Models & Products We Service in Everett

We work with the full Gelco product line: UltraFlex stainless steel chimney liner kits for the flexible runs common in converted coal flues; ArmorFlex insulated flexible liner systems where condensation control is critical; multi-flue custom chimney caps for shared stacks; and rigid stainless liner sections for the occasional straight masonry run that didn’t get butchered during conversion.
Our stock is sized for Everett’s actual flue dimensions, not textbook specs. The coal-era stacks here run oversize by modern standards, and Gelco’s tolerances match that reality better than most. We keep genuine Gelco liner, cap, and termination components on hand for same-week turnaround, and we fabricate custom lengths from quality aftermarket stainless when the job demands it. If a Gelco liner is structurally sound but under-insulated, we wrap and re-terminate it rather than sell a full replacement. If the seam welds are compromised or the flue is abandoned and backdrafting, replacement is the honest answer - and we’ll show you the camera footage that proves which category you’re in.
Gelco Service Pricing in Everett
| Service | Price Range |
|---|---|
| Standard Gelco chimney sweep with Level 2 inspection | $180 - $240 |
| Multi-flue diagnostic (triple-decker shared stack) | $260 - $340 |
| Gelco liner re-termination with storm collar | $340 - $520 |
| Insulated Gelco ArmorFlex liner replacement | $1,800 - $3,400 |
| Custom Gelco multi-flue cap with installation | $480 - $820 |
What drives cost: flue count, liner condition, crown integrity, and whether we’re dealing with a live flue or an abandoned one that’s become a backdraft path. Every estimate includes the camera inspection, moisture readings, and documented photo record - no add-ons, no surprises after we’re in your building. Call (857) 309-1908 for an exact quote; estimates are free and written before any work starts.
Serving Everett, MA - Our Local Coverage Area

We’re based in the Everett 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 - Gelco Chimney Cleaning in Everett
Maybe, but it needs a camera inspection to know. Gelco liners from the 1960s-1980s oil conversion era often lack insulation, and Everett’s Mystic River humidity has likely condensed on the exterior for decades. We check seam weld integrity, measure liner wall thickness, and document whether the flue is still properly venting or has been abandoned behind a newer furnace. Call (857) 309-1908 to schedule - estimates are free.
Shared triple-decker stacks with mixed live and abandoned flues create pressure imbalances that shift with wind direction. A sealed high-efficiency furnace on the ground floor leaves its flue dead, and the adjacent oil or gas flues pull negative pressure that draws exhaust into the abandoned path. We diagnose this with a multi-flue draft test and camera inspection, then seal or reline the dead flue as needed. Call (857) 309-1908 for an exact quote; estimates are free.
We do when the crown geometry matches Gelco’s mounting specs, and we stock custom Gelco multi-flue caps specifically for the spalled, irregular crowns common on 1890-1930 Everett brick. If the crown is too far gone, we rebuild it first and then fit the cap. We never mount a cap on a crown we wouldn’t warrant. Call (857) 309-1908 for an exact quote; estimates are free.
Annually, per NFPA 211, and more frequently if you’re burning wood or have a shared stack with mixed fuel types. Everett’s ambient moisture accelerates creosote staging, and the multi-flue configuration means debris in one flue can affect draft in another. We include a full photo record with every cleaning so you can track crown and liner condition year over year. Call (857) 309-1908 to schedule.
Yes, if the liner is structurally sound. We apply vapor-permeable crown and masonry sealants that stop water intrusion without trapping moisture inside, and we re-terminate the Gelco liner with a proper storm collar and rain cap. This is often the right move for Everett stacks where the Mystic River humidity is the primary problem and the liner itself is intact. If the camera shows seam weld failure or wall thinning, we’ll tell you. Call (857) 309-1908 for an exact quote; estimates are free.
Service Areas Near Everett

We run Gelco service calls throughout the inner Boston metro, including Gelco service in Cambridge for the triple-deckers near Inman Square and the century-old stock along the Charles, plus Gelco service in Newton for the larger single-family masonry stacks. We also cover Winchester, Boston proper, and Waltham from our Cambridge base.
Book Your Gelco Service in Everett Today
Call (857) 309-1908 to book a Gelco chimney cleaning or inspection in Everett. You’ll speak to a live person, not a voicemail. We’ll assign a named, background-checked technician, send a text when they’re en route, and deliver a written price, written scope, and written warranty before any work begins. Every job is backed by our 365-Day Done Right Promise.
Written by Corrine Halstead, Owner at Level Two Chimney Cambridge, serving Everett and Greater Boston since 2009.




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