Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
Gas fireplace serviceLevel 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.
Fast, Reliable Fireplace Repair Across Atherton
Fireplace repair in Atherton typically costs between $275 and $1,800 depending on what’s actually wrong, and most repairs we book are completed within one to two weeks of the first visit. If you’re dealing with a gas fireplace that won’t light, a damper that’s stuck open, or crumbling brick in a 1930s firebox, we’ll send a technician who can diagnose it on the spot and show you camera footage of the problem before quoting a dollar figure. Call (669) 266-5073 to schedule, and we’ll give you a written price before any work begins.
Atherton’s older homes, particularly the estate properties in Lindenwood and West Atherton, were built with masonry fireplaces that have now been venting smoke for close to a century. That’s not a generic repair job. Flue liners crack, mortar degrades, and gas appliances get vented into stacks that were never designed for them. We know those chimneys because we’re inside them every week. This page explains what we find, what it costs, and how we fix it without recommending work you don’t need.
Why Ashby Chimney San Jose Is Atherton’s Preferred Fireplace Repair Company
We’ve been repairing fireplaces since 2002, and the philosophy hasn’t changed: show the customer the problem on camera, write the price down, and stand behind the repair in writing. That approach matters even more in Atherton, where a wrong diagnosis on a century-old chimney can mean a $15,000 rebuild that wasn’t necessary. Our Fireplace Repair team works in Lindenwood, West Atherton, and the neighborhoods off El Camino Real and Atherton Avenue regularly, and we’ve seen enough original 1920s – 1930s flues to know what’s repairable and what isn’t.
Every Ashby Chimney San Jose technician is background-checked and uniformed, so you know exactly who’s at your door. We answer the phone with a live person 24 hours a day, seven days a week. No callback forms, no voicemail loop. When an Atherton homeowner calls at 9:30 on a Tuesday evening because a CO alarm went off, they talk to a person, not a recording.
What really sets us apart in Atherton is the camera work. Before we recommend a HeatShield resurfacing or a firebox rebuild, we run a camera up the flue and show you the footage. You see the cracked tile, the spalling brick, the deteriorated mortar joint. If it’s not on camera, we don’t recommend it. That’s the Kingswell Way: say the price, show up in the window, leave it cleaner, put the guarantee in writing, come back if it fails.
Nathan Corliss, who runs Ashby Chimney San Jose, built the business on a simple rule: the invoice matches the quote. Not approximately. Exactly. If we quote $780 for a damper repair, the invoice says $780. That’s the written price guarantee, and it applies to every job in Atherton, from a small gas log service on Atherton Avenue to a full flue resurfacing on a Lindenwood estate.
Styles & brands we work with
Wood Stove Installation in Atherton
Wood stove installation in Atherton usually runs between $3,200 and $6,800 when it involves running a new stainless liner through an existing masonry chimney. The larger cost driver here is the house, not the stove. Many Atherton homes built in the 1920s through 1950s have flues sized for open fireplaces, not modern wood stoves, which means the installation often requires a properly sized insulated liner so the stove drafts correctly and the flue stays hot enough to prevent creosote buildup.
Liner Sizing and Draft
An undersized flue makes a wood stove burn poorly and smoke back into the room. In older Atherton chimneys, the internal dimensions can be too large for a 6-inch stove outlet, which cools the exhaust and creates creosote. We measure the actual flue dimensions and recommend a liner that maintains proper draft without choking it. This isn’t a guess; it’s a calculation, and we show you the numbers.
Clearances to Combustibles
Older Atherton homes have thicker walls and different framing than modern construction, which can complicate stove placement. We check clearances to framing, mantels, and surrounding millwork, and we quote for any heat shielding needed. The written price covers everything so there’s no surprise charge for a heat shield once the job is underway.
Gas Fireplace Repair in Atherton
Gas fireplace repair in Atherton typically costs $250 to $900, with the most common issues being failed pilot assemblies, dirty thermopiles, and venting problems caused by improperly installed inserts. In gas fireplaces that were retrofitted into original wood-burning fireboxes, we often find logs too close to the burner, blocked venting, or carbon buildup on the thermocouple that shuts the unit down. These are fixable, and most repairs are completed in a single visit.
Pilot Light and Ignition Work
When a gas fireplace won’t stay lit, the culprit is usually a thermopile producing too little voltage or a pilot orifice clogged with dust. Atherton’s long dry season means dust settles into gas valve assemblies during the months the fireplace sits idle. We clean and test the assembly before replacing parts, and if a replacement is needed, we stock common components for brands found in Atherton homes, so we’re not waiting on a distributor.
Venting Repairs in Older Stacks
This is where Atherton’s older chimneys create real problems. A gas insert vented into an unlined 1920s flue will leak exhaust through the smoke chamber and into the living space. Carbon monoxide alarms start going off, and the homeowner has no idea why. We camera-verify the venting path before and after any repair, and we won’t sign off on a gas appliance until the liner is sound. If a new liner is required, we use HeatShield or a properly sized stainless system and show you the camera footage before we start.
Trusted Brands We Service in Atherton
We repair and install parts from the manufacturers whose equipment is already in Atherton homes, and we keep common components stocked locally so repairs don’t stall waiting on a distributor. That includes firebox and flue materials from HeatShield, refractory mortar from Gelco, and fireplace components from Olympia Chimney. When a Lindenwood homeowner needs a damper assembly or a firebox repair, we can often pull the part the same day rather than waiting a week. We also work on most major gas log sets and insert brands found in the Bay Area, so call us with your model number and we’ll tell you straight what’s serviceable and what isn’t.
Common Fireplace Repair Problems We See in Atherton Homes
- Cracked clay-tile flue liners in 1920s – 1930s chimneys. Original clay tiles crack after decades of heating and cooling cycles, and once they crack, exhaust and creosote can escape into the surrounding masonry. We camera-scan suspicious flues and show you the exact crack location before recommending resurfacing.
- Spalling brick and deteriorated mortar in fireboxes. The mild, dry Atherton climate accelerates moisture evaporation in mortar, which causes it to crumble. Heat cycling then spalls the brick face. We rebuild firebox throats and crowns with heat-rated refractory materials, not standard cement.
- Gas inserts vented into unlined chimneys. Original stacks were built for open wood fires, not sealed gas appliances. Without a proper liner, exhaust leaks through the smoke chamber. We see this in homes across Atherton, and the fix is a correctly sized liner plus a camera verification after install.
- Third-degree creosote glaze in seldom-used flues. Atherton’s fireplaces sit dormant most of the year, which lets creosote harden into a glaze that’s difficult to remove and dangerous when the burn season starts. An annual inspection with a camera catch this before it becomes a chimney fire.
See the difference
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AfterPricing for Fireplace Repair in Atherton, CA
Here are the ranges we quote most often in Atherton: pilot light and ignition repair, $250 – $450; damper replacement, $350 – $800; firebox mortar and brick repair, $700 – $2,200; HeatShield flue resurfacing, $1,800 – $4,500 depending on flue length and access; and wood stove installation with a new liner, $3,200 – $6,800. What moves a price up inside those ranges is access (roof pitch, chimney height, whether we need scaffolding), the condition of the surrounding masonry, and parts availability for older gas units. Every quote is written and fixed before we begin. Estimates are free, and we’ll give you a number on the phone: (669) 266-5073.
We Also Serve Cities Near Atherton
Ashby Chimney San Jose handles Fireplace Repair in Atherton and the surrounding Peninsula communities including Menlo Park, Redwood City, Palo Alto, and Stanford. If you’re just outside Atherton’s town limits, chances are we’re already working nearby most weeks. Call us and we’ll schedule you on a route that keeps the drive time reasonable and the appointment window accurate.
Serving Atherton, CA - Our Local Coverage Area
We’re based in the Atherton area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Fireplace Repair in Atherton
You usually can’t tell from the living room, which is why a Level 2 camera inspection matters. We drop a camera down the flue and look for visible cracks, gaps between tile sections, or missing mortar joints. You’ll see the footage yourself on our screen. The only way to confirm a crack is to look at it with a camera, so if a company tells you your liner needs $4,000 of work without showing you a photo, get a second opinion. We’ll show you the crack, explain whether it’s an immediate hazard or can be monitored, and give you a written price either way. Call (669) 266-5073 for an inspection.
In most cases, yes. A cracked clay-tile liner in a Lindenwood chimney can often be resurfaced with HeatShield rather than replacing the whole stack, which preserves the original exterior brickwork and costs a fraction of a rebuild. The deciding factor is how much of the original masonry is still structurally sound. We camera-scan, assess, and tell you honestly if the stack can be salvaged. We’ve repaired many original Atherton chimneys that other companies said needed full rebuilds.
That smell usually means exhaust is leaking into the home instead of venting up the flue, which is a carbon monoxide risk and needs immediate attention. In Atherton’s older homes, the most common cause is a gas insert vented into an unlined or cracked chimney that was never designed to seal combustion gases. The insert runs, gases leak through the smoke chamber, and you smell it inside. Stop using the fireplace and call us. We’ll camera the venting path and find the leak. Call (669) 266-5073 if you smell smoke or exhaust.
A Level 1 inspection is a visual check of the accessible parts of the chimney and usually costs $150 – $275. A Level 2 inspection adds a camera scan of the flue interior and costs $275 – $500 in Atherton. For homes built before 1950, or any chimney that hasn’t been inspected in years, we recommend Level 2 because the flue interior is where the expensive problems hide. You get the camera footage, so you’re not taking our word for it.
Start with a cleaning plus a Level 2 camera inspection, which together run $350 – $600 in Atherton. After the flue is clean, we can actually see the liner and firebox condition on camera. Then we’ll tell you if any repair is needed. A lot of Atherton homeowners assume they need expensive work and find out a cleaning was enough. The reverse also happens. Either way, you’ll know because we show you the footage before recommending anything.
Call Ashby Chimney San Jose for Fireplace Repair in Atherton
If your Atherton fireplace is cracked, smoking, won’t light, or you just bought a home with a fireplace you’ve never had inspected, call us at (669) 266-5073. We’ll answer the phone, schedule a visit, and give you a written price before any work starts. No upselling, no camera-free recommendations, no invoice surprises. We’ve been repairing Peninsula chimneys since 2002, and we put the guarantee in writing every single time.
Written by Nathan Corliss, owner of Ashby Chimney San Jose, serving Atherton and the surrounding Peninsula since 2002.