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 Mountain View
Fireplace repair in Mountain View typically runs between $175 and $2,400 depending on what’s actually wrong. A gas fireplace service call usually lands around $125 to $300, while a full flue liner replacement can reach $1,800 to $2,400. Ashby Chimney San Jose has been fixing fireplaces in Mountain View since 2002, and we quote a written price before any work begins. If you’ve got a fireplace that won’t start, a damper that won’t budge, or a firebox showing cracks, call (669) 266-5073 and we’ll send a background-checked technician who arrives in a real appointment window.
Mountain View’s older housing stock needs a repair crew that understands what 70 years of Bay Area weather and seismic activity does to a chimney. That’s us. Nathan Corliss leads the team, and he insists on one rule: no repair recommendation without camera footage you can see for yourself.
Why Ashby Chimney San Jose Is Mountain View’s Preferred Fireplace Repair Company
We’ve worked on hundreds of Mountain View chimneys, from the 1950s ranchers in Monta Loma to newer construction near Shoreline. The pattern is consistent: older brick chimneys with clay tile liners that have cracked, shifted, or were never lined properly in the first place. Our Fireplace Repair technicians know what to look for before they even set up the ladder, because they’ve seen the same chimney designs repeated across entire Mountain View tracts.
Every job gets a written price before work starts, and a written guarantee when it’s done. If a covered repair fails within the guarantee period, we come back and fix it at no charge. That’s the 365-Day Done Right Promise, and it’s not an add-on. It’s how we’ve operated in Mountain View since day one.
When you call (669) 266-5073, a live person answers. Not a voicemail loop, not a callback form. Someone who can schedule your appointment and answer questions about what to expect.
Styles & brands we work with





Gas Fireplace Repair in Mountain View
Gas Fireplace Repair in Mountain View usually involves a pilot light that won’t stay lit, a thermocouple or thermopile that’s failed, or a gas valve that’s no longer opening reliably. Because Mountain View winters are cool and damp, we also see condensation inside gas log sets that corrodes connections over time. Most gas fireplace repairs in Mountain View run $150 to $450, with the price locked in writing before we touch anything.
Pilot light and ignition work
A pilot that lights but won’t stay lit is almost always a worn thermocouple or a partially clogged pilot tube. Both are straightforward fixes, but they need to be diagnosed with a meter, not guessed at. We test the millivolt output, clean the assembly, and replace only what’s actually failing.
Gas valve and burner service
When a gas valve sticks or a burner won’t carry flame evenly, the repair gets more involved. In Mountain View homes where the fireplace hasn’t been used since last winter, spiders and dust inside the burner orifices cause uneven flames. We clean and adjust first; if the valve itself is faulty, we quote the replacement before ordering parts.
Gas Fireplace Service in Mountain View
Gas Fireplace Service in Mountain View should happen once a year, ideally in early fall before the first cool night. A full service includes cleaning the glass, checking the gasket, testing the ignition system, verifying the gas pressure, and scoping the venting with a camera. Plan on $175 to $300 for a standard service call in Mountain View, with the final number written down before work starts.
Annual tune-up and safety check
Most Mountain View homeowners run their gas fireplace for ambience, not heat, which means it sits idle for six months at a time. That idle time lets dust settle into the pilot assembly and lets the gaskets dry out. An annual service catches those small issues before they become a repair bill.
Insert and log set inspection
Inserts and gas log sets need the same annual attention as a built-in gas fireplace. We check the log placement, inspect the burner pan for rust, verify the vent termination is clear, and run the unit long enough to confirm it’s drafting properly. If the insert is venting into an original wood-burning flue, we scope that too.
Trusted Brands We Service in Mountain View
We repair units built by every major gas fireplace manufacturer, including Heatilator, Heat & Glo, Majestic, and Napoleon. For liner work in Mountain View’s older chimneys we use DuraFlex stainless steel systems, and for firebox repair we work with HeatShield and Gelco materials depending on what the damage calls for. We keep common parts in stock for the units most often found in Mountain View homes, which means faster turnaround on repairs that need a replacement thermocouple, igniter, or damper assembly. No waiting a week for a part to ship from across the country.
Common Fireplace Repair Problems We See in Mountain View Homes
- Missing flue liners in pre-1960 chimneys. Many original Mountain View chimneys were built with brick only, no clay tile liner. Decades of wood burning have glazed the interior with creosote, and now gas appliances are being vented into stacks that were never designed for them.
- Cracked clay tile from decades of seismic shifts. The same minor earthquakes that crack Mountain View sidewalks also crack clay tile flue liners. Hairline cracks at the roofline are common in the 1950s tract homes, and they’re often invisible until we scope the flue.
- Spalling bricks and eroded mortar from damp winters. Mountain View’s cool, wet winters push moisture into porous brick. When that moisture freezes and thaws through the season, the brick face pops off and the mortar joints erode. Homeowners often mistake it for normal aging until the chimney starts leaning or leaking.
- Condensation damage from gas inserts in old flues. Gas fireplaces produce acidic exhaust. When that exhaust is routed through an original masonry flue without a proper liner, the condensation eats the mortar from the inside out. The chimney looks fine from the ground and is falling apart behind the brick.
See the difference
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AfterPricing for Fireplace Repair in Mountain View, CA
Here’s what Mountain View homeowners should expect to pay. A gas fireplace diagnostic and minor repair runs $150 to $450. Damper replacement runs $250 to $600. Firebox repair with HeatShield or Gelco runs $700 to $1,400 depending on the size of the damaged area. A full flue liner replacement with DuraFlex runs $1,800 to $2,400. Chimney crown rebuilds run $400 to $900. These are real numbers from real Mountain View jobs, not guesswork. Call (669) 266-5073 and we’ll give you a written price before any tool comes off the truck.
We Also Serve Cities Near Mountain View
Beyond Mountain View, our Mountain View crew regularly handles fireplace repair in Los Altos, Sunnyvale, Stanford, and Cupertino. If you’re in one of those cities, same process applies: written price first, written guarantee when the work is done. Call (669) 266-5073 and a live person will get you scheduled.
Serving Mountain View, CA - Our Local Coverage Area
We’re based in the Mountain View 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 Mountain View
The only way to know for certain is to have the flue scoped with a camera. In Mountain View’s Monta Loma and Rex Manor tracts, many original chimneys were built without any liner, while others have clay tile that’s cracked beyond repair. We won’t tell you what you need based on a guess from the ground. We run a camera up the flue, show you the footage, and let the picture make the case. Call (669) 266-5073 to schedule a scope.
Yes, but only if the flue is lined with a properly sized stainless steel liner designed for gas exhaust. Gas produces acidic condensation that dissolves old mortar and clay tile. Venting a gas insert into an unlined Mountain View chimney is a slow structural failure. In Rex Manor, we’ve scoped chimneys where the mortar joints were gone entirely behind the brick face. The fix is a DuraFlex liner sized to the insert, and we’ll quote it in writing before starting.
Mountain View sits on the same seismic faults as the rest of the Peninsula, and the older tract homes share identical chimney designs. The 1950s crowns were poured thin with no expansion joints, so decades of minor earthquakes have opened hairline cracks at the roofline. Once water gets in, the freeze-thaw cycle through Mountain View’s damp winters widens the cracks every year. We rebuild crowns with proper expansion joints and a weather-resistant cap.
Third-degree creosote looks like black, shiny glaze baked onto the flue walls. It’s the most dangerous type because it burns hot and fast, and it cannot be removed with a standard brush. On a Rex Manor rancher, our tech found a clay-tile flue with third-degree creosote glaze and a cracked chimney crown letting water into the firebox. We scoped it with a camera, showed the homeowner the footage, and replaced the flue with a DuraFlex liner, then rebuilt the crown and installed a new chimney cap. No upsell, just what the camera proved. Attempting to brush third-degree creosote is a waste of money.
Yes, and here’s why: an unused Mountain View chimney is still exposed to rain, seismic movement, and temperature swings. Water can be working its way into the firebox and the surrounding framing right now. Gas appliances venting into an old flue are also producing condensation whether you’re burning logs or not. An inspection costs less than $200 in Mountain View and tells you what’s actually happening inside the structure. Call (669) 266-5073 and we’ll put it on the schedule.
Contact Us for Fireplace Repair in Mountain View
If your Mountain View fireplace is acting up, call (669) 266-5073. You’ll reach a live person who can answer your questions, walk through what you’re seeing, and schedule a repair that starts with a written price. Nathan Corliss and the team at Ashby Chimney San Jose have been earning trust in Mountain View one chimney at a time since 2002. You’ll know exactly what the repair costs before we start, and you’ll have it in writing.
Written by Nathan Corliss, Owner at Ashby Chimney San Jose.