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 Waltham: What to Know First
We provide independent Olympia Chimney fireplace services in Waltham, from gas fireplace tune-ups to wood-burning firebox repairs and insert conversions. Most Olympia Chimney jobs are completed in a single visit after a written quote is agreed to, and we carry common OEM and quality aftermarket parts for the 600-series gas inserts and Ventis wood-burning lines we see most often in Waltham homes. A Level 2 camera inspection with documented photo record is included on every call, and your written price is delivered before any work starts - Clause 1 of the Haven Standard.
This page is for Waltham homeowners who own an Olympia Chimney gas fireplace, wood-burning unit, or fireplace insert and need service, repair, or conversion work done by technicians who know the product line. Call (781) 649-9326 to speak with a live person, 24/7.
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
- 600-Series Gas Insert: pilot assembly carbon fouling. The 600-series uses a standing pilot design that collects combustion residue faster in Waltham’s hard water zones, where mineral content in humid summer air accelerates oxide buildup on the thermopile. We clean the pilot orifice with calibrated tools, test millivolt output to factory spec, and replace the assembly with an OEM SIT valve group when readings fall below 325 mV. The camera doesn’t guess. Neither do we.
- Ventis Wood-Burning Fireplaces: refractory panel cracking at the smoke chamber throat. The Ventis line ships with medium-duty refractory that tolerates Waltham’s freeze-thaw cycling poorly when homeowners short-fire below 400°F for weeks at a time. We document crack depth with the camera, source replacement panels through Olympia’s distributor network or match with HeatShield refractory replacement when OEM lead times stretch past burning season.
- Olympia Chimney Flex Liner: seam separation at the first offset above the smoke shelf. The 316Ti flex liner used in Olympia’s relining kits can work-harden at the elbow where Waltham’s older colonials have sharp 45-degree offsets near the attic transition. We spot this with the camera, measure the gap, and either sleeve with a DuraFlex rigid section or pull and replace when the separation exceeds 3/8 inch.
- Gas Fireplace Conversion Kits: orifice mismatch on propane-to-natural-gas swaps. Olympia’s conversion orifices are sized for sea-level gas pressure; Waltham’s elevation and National Grid delivery pressure variance means a straight swap often produces a lazy, sooting flame. We drill to corrected BTU spec using a manometer reading at the appliance shutoff, not the chart in the manual.
- Chimney Cap and Crown: galvanized cap rust-through on north-facing Waltham exposures. Olympia’s standard galvanized caps last 4-6 years on north slopes in Waltham’s wet shoulder seasons, where trapped leaf debris holds moisture against the seam weld. We replace with Gelco stainless or copper caps sourced through Haven’s buying network, and re-pour the crown with proper slope and drip edge when spalling has started underneath.
Our Olympia Chimney Fireplace Services Process

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Call and schedule. A live person answers, notes your Olympia Chimney model if you know it, and books a window. You get a text when your tech is en route.
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Level 2 camera inspection. We run the camera down the flue, photograph the firebox, smoke chamber, and liner condition, and record any readings - draft pressure, gas manifold pressure, or CO spillage at the hearth.
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Written price, written scope. Corrine Halstead or your assigned tech puts the findings and a flat price in writing before any tool comes out of the truck. Clause 1 of the Haven Standard.
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Parts decision. We stock common Olympia Chimney OEM parts and maintain backup inventory from DuraFlex, HeatShield, and Gelco. If an OEM part is back-ordered, we explain the aftermarket equivalent and any warranty implications before you decide.
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Repair and test. The work is completed, combustion tested, and documented with after photos. Your photo record is archived under Haven Standard Clause 4.
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Cleanup and guarantee. We haul debris, reset the hearth area, and leave you with a written warranty stamped with the 365-Day Done Right Promise.
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AfterWhat Olympia Chimney Fireplace Services Costs in Waltham
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Gas fireplace tune-up and safety check | $189-$275 | Accessibility of the burner assembly; whether the pilot needs rebuild or replace |
| Ventis firebox refractory panel replacement | $340-$580 | Number of panels cracked; smoke chamber access difficulty in Waltham’s tight 1920s fireboxes |
| 600-series insert pilot/valve replacement | $265-$445 | OEM SIT assembly vs. quality aftermarket; whether the thermocouple and thermopile both test failed |
| Flex liner repair or section replacement | $425-$890 | Height of chimney; number of offsets; need for DuraFlex rigid sleeve vs. full pull |
| Gas conversion (propane to natural or reverse) | $295-$520 | Orifice count; manifold pressure adjustment complexity; permit filing if required |
| Chimney cap and crown repair | $195-$650 | Stainless vs. copper cap; crown rebuild vs. patch; scaffolding needs on steep Waltham roofs |
Estimates are free. Bring us any competitor’s written quote for a free second opinion. Call (781) 649-9326 for an exact quote on your Olympia Chimney system.
Why Waltham Homeowners Call Level Two Chimney Waltham for Olympia Chimney Work

We’ve been servicing Waltham chimneys for years, including regulars near Prospect Hill Park who book every September before the first fire. Corrine Halstead learned this trade at Suffolk County Community College on Long Island and has spent the better part of two decades doing chimney work up and down the Northeast. She and her crew know Olympia Chimney’s product line from hands-on repair, not from a distributor catalog.
Every job carries the 365-Day Done Right Promise, backed by 38,000+ documented inspections since 2009. We source materials through Haven’s buying network - Olympia Chimney, DuraFlex, HeatShield, Gelco, Famco, Copperfield - to keep customer prices honest. Your technician is background-checked, uniformed, and named before arrival. License information is displayed on every page. Calls are answered by a live person, 24/7.
FAQs
No - as an independent Olympia Chimney service provider, we perform repairs that do not void manufacturer warranties provided we use OEM-spec parts and follow installation procedures. We document exactly what parts were used and how they were installed, so you have a record if a warranty question ever arises. Call (781) 649-9326 if you’d like us to review your warranty terms before booking.
Common 600-series and Ventis parts are on our Waltham truck or in our regional warehouse; most repairs happen same visit. Specialty items ship from Olympia’s distributor in 3-7 business days, and we’ll tell you upfront if that’s the case. We also stock quality aftermarket alternatives from DuraFlex, HeatShield, and Gelco when time matters more than the OEM box. Call (781) 649-9326 to check availability for your model.
Replace when the firebox is cracked through to the outer shell, the liner is perforated in multiple sections, or repair costs exceed 60% of a new installed unit. We make that call with camera evidence you can see, not a sales pitch. When work can safely wait a season, we say so. Call (781) 649-9326 for a free inspection and honest assessment.
Annually, per NFPA 211, even if it looks fine. Gas fireplaces produce acidic condensation that corrodes the burner ports and degrades the pilot assembly over time - problems you won’t see until the unit fails to light on the coldest night in January. We document condition each year so you can track wear. Call (781) 649-9326 to schedule before burning season.
Skipped maintenance leads to accumulated creosote in wood-burning units (a chimney fire risk) and incomplete combustion in gas units (a carbon monoxide risk). In Waltham’s older homes with tight construction, CO spillage from a poorly tuned gas fireplace is a genuine hazard, not a theoretical one. The camera inspection shows you exactly what’s in your flue so you’re deciding from fact, not fear. Call (781) 649-9326 for a free estimate.
Written by Corrine Halstead, Owner, Level Two Chimney Waltham at Level Two Chimney Waltham, serving Waltham and nearby areas.





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