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 San Mateo: What to Know First
We provide independent Olympia Chimney chimney cap & crown service in San Mateo, with most jobs completed in a single visit after a camera inspection. A written price arrives before any work starts, and every job carries our 365-Day Done Right Promise under the Haven Standard. Typical turnaround from call to completion is 3-5 business days during sweep season, faster for active leaks or exposed flue conditions.
This page is for homeowners in San Mateo who already have an Olympia Chimney cap, crown, or full chimney system and need repair, replacement, or an honest assessment of whether the work can wait. We are not affiliated with or authorized by Olympia Chimney. We are an independent Olympia Chimney service provider with access to OEM and quality aftermarket parts through Haven’s buying network.
Call (650) 600-3117 to speak with a live person, 24/7, or to schedule a free estimate.
How Olympia Chimney Products Fail - and How We Fix Them
- Olympia Chimney stainless multi-flue caps: The 304-grade mesh on earlier Olympia multi-flue caps can sag between support bars after 6-10 years in San Mateo’s salt air, especially in Baywood and hills homes within a mile of the bay. The gap that opens lets swallows and roof rats enter the flue. We measure the flue array on site, source a replacement cap with 18-gauge lid and reinforced mesh through Haven’s network, and stamp the installation under Clause 1 of the Haven Standard with a written warranty.
- Olympia Chimney galvanized economy caps: The galvanized line sold through big-box channels in the late 2010s develops red rust at the lid seam in 3-5 years here. San Mateo’s winter marine layer keeps the metal damp for weeks at a stretch. We do not reinstall galvanized caps on any chimney we service. We replace them with stainless or copper equivalents, show the customer the old cap and the camera footage of any flue damage, then quote the upgrade in writing.
- Olympia Chimney pour-in-place crowns: The factory-mixed crown compound Olympia shipped for contractor application in 2015-2019 was prone to shrinkage cracking in our freeze-thaw-light cycles. Not a full freeze, but enough 40-degree swings to stress thin crowns. We find hairline cracks that have widened to water paths. Our fix is crown coating with a flexible elastomeric product or full crown rebuild if the steel mesh is exposed. The camera goes down first to confirm no flue damage from the leak.
- Olympia Chimney chase covers on prefab units: The stamped steel chase covers on Olympia prefab fireplace systems rust at the corner seams where the chimney meets the roof cricket. In San Mateo’s older subdivisions near Central Park, we’ve seen chase covers fail in under 8 years. We fabricate a replacement chase cover in stainless or copper to the exact roof pitch, or source a Gelco equivalent if the customer prefers. Every chase cover job includes a photo of the flue termination before and after.
- Olympia Chimney wind-directional caps: The rotating collar on Olympia’s wind-directional line seizes in our coastal corrosion environment. The cap sits stuck facing one direction, creating downdraft smoke spillage into the room. We disassemble the collar, assess whether the flue can accept a standard static cap with proper draft, and replace with a Gelco or Famco static model if the rotation mechanism is unsalvageable. The camera confirms draft performance after installation.
Our Olympia Chimney Chimney Cap & Crown Process

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Call and schedule. A live person answers, notes the Olympia Chimney product if known, and books a Level 2 camera inspection. You receive a text when your technician is en route.
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Camera inspection. We run the camera down the flue before touching the cap or crown. Corrine Halstead started this practice in 2009, and it became Clause 4 of the Haven Standard. The camera doesn’t guess. Neither do we. You see what we see.
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Written price and scope. We deliver a written price, written scope, and written warranty before any work begins. Haven Standard Clause 1. No exceptions. If you have a competitor’s written estimate, we provide a free second opinion.
- 4
Parts decision. For Olympia Chimney systems, we source OEM caps and crowns when available and cost-justified. When OEM lead times stretch past two weeks or pricing is inflated, we substitute quality aftermarket from DuraFlex, HeatShield, Gelco, or Famco through Haven’s buying network. You see both options in writing.
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Installation and test. We install to manufacturer clearance specs, seal all fasteners with appropriate sealant for the material, and run a post-repair camera pass to confirm flue integrity. The technician photographs the completed work.
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Documentation and guarantee. You receive a documented photo record of the inspection and repair, plus the 365-Day Done Right Promise. If it’s not done right, we make it right.
Before
AfterWhat Olympia Chimney Chimney Cap & Crown Costs in San Mateo
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Olympia Chimney cap replacement (standard single-flue stainless) | $280 - $440 | Flue diameter, roof pitch, need for new flue collar |
| Olympia Chimney multi-flue cap replacement | $520 - $780 | Flue count, lid size, mesh gauge upgrade |
| Olympia Chimney crown coating (elastomeric) | $340 - $560 | Crown square footage, crack depth, number of coats |
| Olympia Chimney crown rebuild (demolition and re-pour) | $1,200 - $2,400 | Crown size, scaffolding need, steel mesh replacement |
| Olympia Chimney chase cover replacement (prefab) | $680 - $1,100 | Material (stainless vs. copper), roof pitch complexity |
| Camera inspection and photo record | Included | Standard on every visit per Haven Standard Clause 4 |
These are San Mateo market ranges based on our 38,000+ jobs since 2009. Your exact price comes after the camera inspection, in writing, before any work starts. Estimates are free. Call (650) 600-3117.
Why San Mateo Homeowners Call Emberly Chimney Cleaners San Mateo for Olympia Chimney Work

We’ve inspected and cleaned more than 38,000 chimneys since 2009. Every one had a written price before work started and a documented record when it was done. That is not marketing language. It is Clause 4 of the Haven Standard, running continuously since Corrine Halstead made camera documentation the default here.
Our technicians are background-checked, uniformed, and assigned by name. You get a text when yours is on the way. The license number is on every page and on the truck.
We carry Olympia Chimney parts when OEM makes sense, and we have backup from DuraFlex, HeatShield, Gelco, and Famco when aftermarket serves the customer better. No one waits weeks for a cap while water enters the flue.
The 365-Day Done Right Promise applies to every job. If it’s not done right, we make it right. No argument, no runaround.
FAQs
No. Using an independent service provider for cap or crown repair does not void an existing Olympia Chimney product warranty, provided the work is performed to standard clearances and materials specifications. We document our installation with photos and written scope, which you retain for any warranty claim. If your cap is under warranty and defective, we can help you identify the model and purchase date for a direct claim, or quote a replacement if the warranty has expired. Call (650) 600-3117 for an exact quote - estimates are free.
Stainless Olympia Chimney caps typically last 12-18 years in San Mateo if properly installed, but the 304-grade mesh on some multi-flue models shows corrosion in 6-10 years within a mile of the bay. Galvanized caps fail in 3-5 years here due to the marine layer. We assess your cap’s actual condition with the camera and give you a written condition grade, not a guess based on age. Call (650) 600-3117 for an exact quote - estimates are free.
We source both. OEM Olympia Chimney caps and crowns are available through Haven’s buying network, and we use them when lead time and pricing are reasonable. When OEM delivery stretches past two weeks or the price is inflated, we substitute quality aftermarket from DuraFlex, HeatShield, Gelco, or Famco with equivalent or superior specifications. You see both options and both prices in writing before deciding. Call (650) 600-3117 for an exact quote - estimates are free.
Not always. Hairline cracks under 1/16 inch with no steel mesh exposed and no flue damage from water intrusion can often be addressed with crown coating. We run the camera first to confirm the flue is dry and intact, then quote coating or rebuild based on what we found. In San Mateo’s climate, coating buys 5-8 years if the crown structure is sound. Rebuild is necessary when cracks widen, mesh rusts, or the crown has lost structural integrity. Call (650) 600-3117 for an exact quote - estimates are free.
Most cap replacements are scheduled within 3-5 business days during sweep season, faster for active leaks or exposed flue conditions that create fire or water damage risk. We do not promise same-day dispatch, but we do answer the phone live 24/7 and keep standard sizes in our San Mateo inventory. Emergency tarping is available if weather is entering the flue before your scheduled date. Call (650) 600-3117 for an exact quote - estimates are free.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners San Mateo at Emberly Chimney Cleaners San Mateo, serving San Mateo and nearby areas.





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