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 Chimney Cap & Crown in Oakland: What to Know First
We provide independent Olympia Chimney chimney cap and crown service throughout Oakland, from the flat-roofed bungalows in Rockridge to the steeper pitches in the Montclair hills. Most Olympia Chimney cap replacements and crown repairs are completed in a single visit once parts are confirmed, and every job starts with a written price before any work begins - Clause 1 of the Haven Standard, no exceptions. This page is for homeowners who already have an Olympia Chimney cap, crown, or full flue system and need to know whether it can be repaired, what it will cost, and who can do it without voiding whatever warranty remains.
Call (628) 300-1701 for a free estimate. We answer live, 24 hours a day.
How Olympia Chimney Products Fail - and How We Fix Them
- Olympia Chimney stainless single-flue caps (OS series): The OS-series mesh hoods we see in Oakland’s salt-air zones - particularly near the estuary and down toward Alameda - develop pinhole corrosion at the weld seams faster than inland installs. The 304-grade stainless holds up well structurally, but the spot-welded corners collect condensation from our marine layer mornings. We replace with either an OEM Olympia cap or a Gelco equivalent with fully seam-welded construction, depending on what your flue termination geometry allows.
- Olympia Chimney multi-flue caps (OM series): The OM-series lid-over-band design works well until the band tension loosens, which happens predictably after 7-10 years in Oakland’s thermal cycling. The lid lifts in a hard easterly wind off the hills, then the band deforms and the cap walks. We re-seat with a stainless tension band and add wind clips where the original design omitted them - a field fix Corrine Halstead’s crew standardized after logging dozens of these in the Temescal district.
- Olympia Chimney concrete crowns (factory-poured, CC series): Olympia’s CC-series crown is a pre-formed pour with integrated drip edge. The failure we document most often is vertical cracking at the flue penetration, caused by differential expansion between the terracotta flue and the concrete crown. In Oakland’s clay-heavy soil zones - think the flats below Highway 24 - minor foundation settling accelerates this. We repair with a poured-in-place crown using HeatShield CrownCoat or full replacement if the crack has propagated to the crown edge.
- Olympia Chimney chase covers (aluminum CCV series): The CCV aluminum chase cover is common on newer Oakland builds from 2015-2022. The factory corners are crimped, not welded, and the aluminum work-hardens in our temperature swings. We’ve found 14 instances in our Oakland records where the corner seam separated and funneled water directly onto the flue liner. We replace with a custom-fabricated stainless chase cover from our Copperfield supply line, or an Olympia OEM if the chase dimensions match a standard catalog size.
- Olympia Chimney spark arrestor mesh (OS and OM series): The 5/8-inch mesh on both series clogs with creosote flakes in wood-burning installs, but in Oakland’s eucalyptus-heavy neighborhoods - the hills above Piedmont, parts of Redwood Heights - the mesh also traps leaf litter and bark. The restricted airflow cools the flue, accelerating creosote condensation. We clean mesh in place when possible, replace when corrosion has thinned the wire, and upsize to 3/4-inch mesh only where local code allows and fire risk is low.
Our Olympia Chimney Chimney Cap & Crown Process

- 1
Call and schedule. A live person answers. We ask for the Olympia Chimney model if you know it - OS, OM, CC, CCV - and book a Level 2 inspection with camera scan.
- 2
On-site inspection. Our tech arrives in uniform, license visible, with a text sent when en route. We run the camera down the flue, photograph the cap or crown from the roof, and document the condition under Haven Standard Clause 4.
- 3
Parts decision. We check Olympia Chimney OEM availability against our Haven buying network stock. If OEM lead time exceeds 10 days and the repair is weather-critical, we quote a quality aftermarket equivalent - Gelco for caps, HeatShield for crowns - with full disclosure of warranty implications.
- 4
Written price, then work. You get a written scope, written price, and written warranty before anyone picks up a tool. Clause 1 of the Haven Standard. No verbal estimates, no surprises.
- 5
Repair and test. Cap or crown installed, flue flow tested, camera re-run to confirm no debris dropped during work. Photos of completed repair added to your documented record.
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Cleanup and closeout. We leave the roof and hearth cleaner than found. Your 365-Day Done Right Promise is stamped on the invoice. Payment only after you sign off on the completed scope.
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AfterWhat Olympia Chimney Chimney Cap & Crown Costs in Oakland
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Olympia Chimney OS-series cap replacement (OEM) | $340-$520 | Flue diameter, roof pitch, need for wind clips |
| Olympia Chimney OM-series multi-flue cap replacement | $580-$890 | Band count, lid span, custom flashing |
| Olympia Chimney CC-series crown repair (HeatShield CrownCoat) | $420-$680 | Crack length, flue count, need for form rebuild |
| Olympia Chimney CC-series crown full replacement | $1,200-$1,850 | Crown footprint, reinforcement, liner support |
| Olympia Chimney CCV chase cover replacement | $680-$1,100 | Material (aluminum vs. stainless), corner welding, chimney height |
| Spark arrestor mesh clean or replace | $120-$280 | In-place clean vs. full mesh replacement, corrosion grade |
These are Oakland-specific ranges based on our 2024-2025 job logs. Your exact price comes after inspection. Call (628) 300-1701 for a free estimate - we’ll put it in writing before you decide.
Why Oakland Homeowners Call Level Two Chimney Oakland for Olympia Chimney Work

We’ve inspected over 38,000 chimneys since 2009, and a growing share of Oakland’s housing stock runs Olympia Chimney products from the 2015-2022 build wave. Corrine Halstead’s crew knows the difference between an OS-series that needs a cap and an OM-series that needs a band - because we’ve logged the flue dimensions, the failure modes, and the fix for each. The camera doesn’t speculate, and neither do I.
Our Haven Standard buying network sources Olympia Chimney, Gelco, DuraFlex, HeatShield, and Copperfield parts at volume, which keeps customer prices honest without cutting corners. Every tech is background-checked, uniformed, and named on your appointment. The 365-Day Done Right Promise applies to every cap and crown we touch. And if another company handed you a written estimate that feels high, we offer a free second opinion - bring us their paperwork.
FAQs
No, if the work is done by a qualified technician using compatible parts. As an independent Olympia Chimney service provider, we use OEM parts when available and document the install with photos - which protects your warranty better than an unrecorded DIY fix. Call (628) 300-1701 if you need help reading your warranty terms.
OS-series stainless caps average 12-18 years inland, 8-12 years within two miles of the Bay due to salt-air corrosion. OM-series multi-flue caps typically need band adjustment or replacement at year 10. Our inspection tells you where yours sits in that range. Call (628) 300-1701 for a free camera inspection.
Most common OS and OM caps ship within 3-5 business days through our Haven network. CC-series crowns require a pour and cure, so we schedule weather-dependent. If your cap is missing or damaged and rain is forecast, we can install a temporary Gelco equivalent while OEM ships. Call (628) 300-1701 to check current lead times.
Cracks under 1/8 inch with no spalling get HeatShield CrownCoat and a 5-year expectation. Cracks wider than 1/8 inch, corner separation, or exposed rebar mean full replacement - anything less is a temporary patch that costs more later. We show you the camera footage and quote both paths in writing. Call (628) 300-1701 for an exact assessment.
Water stains on the ceiling near the fireplace usually mean the cap is leaking or missing. Water pooling on the smoke shelf or deteriorating firebrick below the flue opening points to crown failure. Our camera inspection distinguishes the two in about ten minutes - we photograph both and explain what we found before quoting. Call (628) 300-1701 to book.
Written by Corrine Halstead, Owner, Level Two Chimney Oakland at Level Two Chimney Oakland, serving Oakland and nearby areas.





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