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 Fireplace Services in Cambridge: What to Know First
We provide independent Gelco fireplace services in Cambridge, from gas fireplace tune-ups to firebox rebuilds and insert conversions. Most Gelco jobs we book run within a week, and every one starts with a written price before any work begins - no exceptions. If you own a Gelco gas unit, wood-burning fireplace, or insert in Cambridge and it’s burning unevenly, clicking on ignition, or showing rust in the firebox, we can diagnose it with a camera inspection and tell you exactly what it’ll cost to fix. Call (857) 309-1908 for a free estimate.
What happens when you call
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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.
How Gelco Products Fail - and How We Fix Them
- Gelco 36-inch and 42-inch wood-burning fireplaces (pre-2015): refractory panel cracking. The factory refractory panels in these units don’t tolerate Cambridge’s freeze-thaw cycling well. Moisture gets in through a compromised crown or missing cap, the panel absorbs it, and the face crumbles by February. We replace with HeatShield refractory or factory-matched Gelco panels, depending on crack depth and whether the unit is still under warranty. The camera shows the crack pattern before we quote.
- Gelco direct-vent gas fireplaces: delayed ignition and “click, no fire.” The SIT valve and pilot assembly on Gelco’s direct-vent units from the 2008-2016 era are sensitive to dust and spider silk. Cambridge’s older housing stock, with basement utility runs that aren’t sealed tight, means we see this more here than in new construction markets. We pull the burner, clean the orifice with a numbered drill set (never a wire brush - that widens the hole and voids the fuel-air ratio), and test with a manometer. If the valve’s failing, we source OEM or a Crosslee-approved equivalent.
- Gelco fireplace inserts: blower motor bearing noise and seized fans. The Fasco and Dayton blower kits Gelco spec’d for their insert line run hot and loud after six to eight seasons. We see this in Cambridge triple-deckers where the insert’s the primary heat source October through April. We test amperage draw first - a motor pulling over 2.8 amps is dying - and quote a replacement with the correct CFM rating. Aftermarket blowers save money but run louder; we tell you which you’re getting before we order.
- Gelco chimney-top dampers: cable corrosion and stuck flaps. The Gelco Lyemance-style top-sealing damper uses a stainless cable running down the flue to a control handle. In Cambridge, the salt air off the Charles and the freeze-thaw at the roofline corrodes the cable sheath from the inside. The handle goes slack, or the flap freezes half-open. We snake a camera to confirm the cable’s intact versus snapped, then replace with a Gelco OEM cable assembly or upgrade to a Lock-Top if the frame’s warped.
- Gelco gas log sets: sooting and flame impingement. Gelco’s ceramic-fiber log sets shift over time, especially if they’ve been rearranged by a homeowner or previous tech who didn’t check the manual. The flame hits the log directly instead of rolling around it, and you get carbon buildup and a kerosene smell. We position per factory spec, check gas pressure at the manifold (should read 3.5 inches water column for natural gas, 10 inches for propane), and photograph the flame pattern for your record.
Our Gelco Fireplace Services Process

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Call and schedule. A live person answers, checks our calendar, and books a window. You get a text when your tech is en route.
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Camera inspection first. We run the camera before touching tools. For a Gelco gas unit, that means burner pull, firebox scan, and flue liner check. For wood-burning, we document creosote class and refractory condition. Clause 4 of the Haven Standard requires this photo record on every job.
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Written price, written scope. Corrine Halstead or your assigned tech delivers a flat price and what it covers before any work starts. No verbal estimates, no “we’ll see how it goes.”
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Parts decision with you. If your Gelco unit needs a part, we show you OEM versus quality aftermarket options, the price difference, and any warranty implications. You choose; we order.
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Repair and test. We complete the work, run the unit through a full cycle, check CO readings at the face, and confirm draft performance with a digital manometer.
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Documentation and cleanup. You receive photos, a written summary of findings, the invoice, and the 365-Day Done Right Promise in writing. We leave with the drop cloths and soot.
Before
AfterWhat Gelco Fireplace Services Costs in Cambridge
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Gelco gas fireplace tune-up and safety check | $189-$275 | Accessibility (basement install vs. main floor), whether blower removal is needed |
| Gelco refractory panel replacement (wood-burning) | $340-$680 | Panel count, whether side panels are also cracked, OEM vs. HeatShield |
| Gelco direct-vent gas valve or pilot assembly | $290-$520 | OEM SIT valve vs. Crosslee equivalent, whether the thermopile also tests weak |
| Gelco insert blower motor replacement | $240-$410 | Aftermarket or OEM Fasco, whether the housing bracket is corroded |
| Gelco top-sealing damper cable replacement | $180-$340 | Accessibility from roof vs. through firebox, frame condition |
| Gelco-to-insert conversion consultation and install | $1,800-$3,400 | Liner size change, whether the chimney needs a new cap/crown |
Every estimate is free. We don’t charge to look, and we don’t charge to tell you nothing’s wrong. Call (857) 309-1908 for an exact quote on your Gelco unit.
Why Cambridge Homeowners Call Level Two Chimney Cambridge for Gelco Work

We’ve put cameras up flues in Cambridge since 2009 - triple-deckers near Inman Square, condos off Brattle Street, century-old rowhouses a block from the Charles. The camera doesn’t editorialize - it just shows you what’s there. That matters with Gelco work because the difference between a $200 tune-up and a $2,000 repair is often invisible until you’re looking at the liner from the inside.
Our techs carry Gelco parts knowledge alongside DuraFlex liner systems and HeatShield refractory - so when your Gelco unit needs something the OEM line doesn’t make anymore, we have a source that fits and performs. Every job is backed by the 365-Day Done Right Promise, and we answer the phone live, 24 hours a day. If you’ve got a written estimate from another company, we’ll give you a free second opinion with our own camera documentation.
FAQs
No - as an independent Gelco service provider, we follow manufacturer service specs and use OEM or equivalent parts. Gelco’s warranty covers defects in materials and workmanship; it doesn’t require you to use a factory-authorized technician for routine service. We document every step so you have proof of proper maintenance if you ever need to file a claim. Call (857) 309-1908 if you want us to review your warranty paperwork before we start.
Common Gelco parts - pilot assemblies, blower motors, refractory panels for current series - arrive in three to five business days through our Haven buying network. Discontinued parts from pre-2010 units can take two weeks or require us to fabricate or source a cross-reference equivalent. We tell you the lead time in the written estimate, before you commit. Call (857) 309-1908 to check availability for your specific model.
Repair makes sense when the firebox is sound, the flue liner is intact, and the repair cost is under 40% of a new installed unit. Replace when the firebox is cracked through to the outer shell, the liner is failing, or you’re spending more on band-aid repairs than the unit is worth. We show you the camera footage and run the numbers both ways - no pressure either direction. Call (857) 309-1908 for a free evaluation.
Once a year, before the heating season. Even a clean-burning Gelco direct-vent unit accumulates dust on the burner, degrades the pilot thermopile, and shifts logs out of position. Annual service catches delayed ignition before it damages the valve, and it’s the only way to verify CO levels are staying in the firebox where they belong. Call (857) 309-1908 to book before October.
Class I creosote becomes Class III glazed creosote, which can’t be brushed out and becomes a chimney fire hazard. The refractory panels crack further, exposing the metal firebox to direct flame. In Cambridge’s tight housing stock, a chimney fire often means smoke damage to neighboring units, not just yours. A sweep and inspection runs $189-$275; a fire rebuild runs thousands. Call (857) 309-1908 for a free estimate.
Written by Corrine Halstead, Owner, Level Two Chimney Cambridge at Level Two Chimney Cambridge, serving Cambridge and nearby areas.




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