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.
Olympia Chimney Fireplace Services in Cambridge: What to Know First
We provide independent Olympia Chimney fireplace services in Cambridge, from gas valve troubleshooting on the Ventis series to firebox refractory replacement on wood-burning units. Most Olympia Chimney jobs are quoted in writing within 24 hours of your call and scheduled within a week, with emergency heat-down situations handled same-day when safety is involved. We do not quote over the phone without seeing the unit, and we do not start work until you have a written price, scope, and warranty in hand.
This page is for Cambridge homeowners who installed an Olympia Chimney fireplace, insert, or gas unit between 2015 and 2023 and need service, repair, or conversion work. If you smell gas, see cracked refractory, or your Ventis direct-vent won’t stay lit, call us at (857) 309-1908. A live person answers, 24 hours a day.
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 Olympia Chimney Products Fail - and How We Fix Them
- Ventis HE54 and HE70 direct-vent gas fireplaces: pilot dropout in high wind. The vent termination on these units sits low-profile and can pull exhaust back into the intake during Cambridge’s northeast winter gales off the Charles, especially on third-floor installations above tree line. The OEM pilot assembly is sensitive to oxygen dilution. We replace with an upgraded pilot/orifice combination that tolerates a wider combustion-air variance, or we relocate the termination if the structure allows. The camera doesn’t editorialize - it just shows you what’s there.
- Olympia wood-burning inserts (OPD42, OPD50): refractory panel cracking above the firebox throat. These units run hot by design, and Cambridge’s freeze-thaw cycles stress the refractory when the unit cools rapidly after evening shutdown. Hairline cracks we monitor; cracks that open to the steel wrapper we replace with Olympia-specified 1.25-inch refractory or, where backordered, HeatShield-compatible refractory rated to 2,100°F. We photo-document the crack width and depth before recommending either path.
- Ventis B-vent gas log sets: delayed ignition and soot fallout. The B-vent collar on early-production Ventis sets can loosen where it meets the firebox roof, pulling dilution air and dropping flame temperature. The result is carbon particle fallout on the logs and, in some Cambridge basements we’ve seen, a faint kerosene odor at startup. We reseat the collar with high-temp sealant, verify draft with a manometer, and replace the gas valve if creep has damaged the slow-open function.
- Olympia chimney-top dampers (OTD series): cable seizure in salt air. Cambridge’s proximity to the harbor means chloride exposure that Olympia’s stainless cable tolerates poorly over seasons. The damper hangs open or won’t budge. We replace the cable with a Gelco marine-grade equivalent, or convert to a top-sealing damper with a rotary control if the throat geometry allows. Either fix, we show you the corrosion pattern on camera before we quote.
- OPD insert blowers: bearing noise after three to four seasons. The OEM blower on Olympia’s OPD series uses a sleeve bearing that collects fine ash dust, especially in Cambridge’s older homes with less airtight envelopes. The fix is not always a new $340 blower assembly. We pull, clean, and repack the bearing with high-temp grease in about half the cases, and we show you the bearing race on video before we recommend replacement.
Our Olympia Chimney Fireplace Services Process

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Call intake with model verification. We ask for the Olympia model plate photo (usually inside the firebox or below the louvers) and the symptom. This lets us pull the correct venting diagram and parts list before we arrive.
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NFPA 211 Level 2 inspection with camera. We run a camera up the flue or through the vent system, record combustion readings, and photograph the firebox, throat, and any refractory damage. Clause 4 of the Haven Standard requires this photo record on every job.
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Written diagnosis and price. Corrine Halstead or a senior tech reviews the footage and writes what was found, what it costs, and what happens if you defer. No work starts until you have this in hand - Haven Standard Clause 1.
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Parts decision: OEM or qualified equivalent. We stock common Olympia gaskets, pilots, and refractory panels. For backordered items, we source through our Haven buying network from DuraFlex, HeatShield, Gelco, or Famco with documented compatibility. You see the part number and source before we order.
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Repair, test, and document. We complete the work, run a combustion analysis or draft test, and provide a second photo set showing the finished condition. The 365-Day Done Right Promise applies from this moment.
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Cleanup and archive. We leave the hearth area cleaner than found and upload your documented record to our archive, accessible if you sell the home or need warranty support later.
Before
AfterWhat Olympia Chimney Fireplace Services Costs in Cambridge
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Gas fireplace service and safety check (Ventis series) | $185 - $265 | Accessibility of the valve compartment; need for combustion analysis |
| Pilot assembly replacement (Ventis HE54/HE70) | $240 - $380 | OEM vs. upgraded assembly; termination relocation adds $180 - $340 |
| Refractory panel replacement (OPD42/OPD50) | $420 - $680 | Single panel vs. full set; back panel removal complexity |
| Blower repair or replacement (OPD series) | $95 - $340 | Clean/repack vs. new assembly |
| Damper cable or conversion (OTD series) | $195 - $465 | Simple cable swap vs. top-sealing conversion with cap |
| Firebox weld or steel repair | $380 - $720 | Location of crack; need for liner inspection post-repair |
These are Cambridge-market ranges for Olympia Chimney units specifically. Your written estimate, free and itemized, comes after inspection - never before we see the unit. Call (857) 309-1908 to schedule.
Why Cambridge Homeowners Call Level Two Chimney Cambridge for Olympia Chimney Work

We’ve put cameras up flues in triple-deckers near Inman Square and century-old rowhouses a block off the Charles since 2009. That means we’ve seen how Olympia’s vent terminations behave in Cambridge’s wind corridors, how the OPD refractory holds up to our freeze-thaw, and which parts distributors actually stock versus which ones leave you waiting three weeks.
Our technicians are background-checked, uniformed, and assigned by name - you’ll get a text when yours is en route. Every job carries the 365-Day Done Right Promise and a documented photo record under Haven Standard Clause 4. We also service DuraFlex, HeatShield, and Gelco systems, so if your Olympia unit connects to another manufacturer’s component, we don’t hand you off.
Free Second Opinion on any competitor’s written estimate. Bring it in.
FAQs
No. As an independent Olympia Chimney service provider, we use OEM or equivalent-spec parts and document everything. Manufacturer warranties cover defects in materials and workmanship; they do not require you to use the dealer who sold the unit. We note part numbers and installation dates on every invoice so your warranty record is complete. Call (857) 309-1908 if you need help filing a claim.
Common gaskets, pilots, and refractory panels we stock locally. Specialty items like Ventis heat exchangers or OPD door assemblies typically ship in 5-10 business days from Olympia’s distributor. When backorders stretch longer, we source compatible equivalents through our Haven buying network from DuraFlex, HeatShield, or Gelco and show you the spec sheet before substituting. You’ll know the timeline before we start.
Replace when the firebox steel is compromised, the heat exchanger is cracked, or repair costs exceed 60% of a comparable new unit installed. We repair refractory, blowers, dampers, and gas trains routinely. Our camera inspection shows you the exact condition of the hidden components - the steel wrapper, the throat, the flue collar - so you’re not deciding on guesswork. Call for a free inspection and written comparison.
Annually, per NFPA 211, even if it looks fine. Gas fireplaces accumulate dust and debris on the burner, the pilot orifice narrows with use, and the vent system can shift or corrode. Cambridge’s older masonry chimneys, especially in pre-war housing near Harvard Square or Central Square, can develop liner gaps that affect draft. We find more “clean-looking” units with blocked burner ports than you’d expect. The inspection is $185-$265; skipping it risks carbon monoxide spillage or delayed ignition.
Gas units can develop combustion problems that produce carbon monoxide or soot into living space. Wood-burning inserts accumulate creosote that ignites at 451°F and can crack the flue liner, sending flames into wall cavities. In Cambridge’s dense housing, that risk extends to neighbors. We don’t use scare tactics - we show you the camera footage and let you decide. Most maintenance-deferred units we see need costlier repairs, not replacement. Call (857) 309-1908 for an exact quote; estimates are free.
Written by Corrine Halstead, Owner, Level Two Chimney Cambridge at Level Two Chimney Cambridge, serving Cambridge and nearby areas.




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