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.
Fast, Reliable Gas Fireplace Repair Across Menlo Park
Gas fireplace repair in Menlo Park typically costs between $180 and $450 for common fixes like thermocouple or thermopile replacement, valve service, and pilot assembly cleaning, with more involved work like liner installation or burner replacement running $850 to $2,800 depending on the chimney’s condition and access. Most repairs take under two hours once we’re on site, and we stock the ignition and valve parts that fail most often on the mid-century fireplaces found throughout the Willows, Belle Haven, and Sharon Heights. If you’ve got a gas fireplace that won’t light, shuts off on its own, or smells odd when running, call (336) 863-3889 and we’ll give you a written price before any work starts.
Why Alcott Chimney Sweep Is Menlo Park’s Preferred Gas Fireplace Repair Company
Menlo Park homeowners call us because we do two things most chimney companies don’t: we show you exactly what’s wrong before we fix it, and we tell you who’s coming to your door before they arrive. Every technician we send to Menlo Park is background-checked and identity-verified under the Threshold Standard, and you’ll get their name and photo before the visit. When they show up, they carry a photo ID badge, and they’re required to show it at the door. No exceptions.
Ruben Castellano has built Alcott Chimney Sweep around a simple rule since 2002: prove the problem, price the fix in writing, and stand behind the work for a full year. That’s our 365-Day Done Right Promise. If a repair we make fails within the coverage period, we come back and make it right at no charge. You’ll also get a written guarantee on every repair, included automatically. We operate as part of the Gas Fireplace Repair team within the Threshold Group family of home-service companies, and our crews know Menlo Park’s housing stock well enough to predict what they’ll find before the camera goes up the flue.
Our dispatch for the San Francisco Bay Area coordinates scheduling, and Menlo Park crews serve the city locally. What that means for you is a live person answers the phone around the clock, and you’re never routed through a callback queue when your fireplace quits on a cold February night.
Our Gas Fireplace Repair Services in Menlo Park
Gas Fireplace Repair
We repair gas log sets, gas inserts, and factory-built gas fireplaces throughout Menlo Park, from a 1950s ranch in the Willows with a retrofit log set to a newer direct-vent unit in a Sharon Heights remodel. The most common calls we get here are for pilot lights that won’t stay lit, burners that light unevenly or not at all, and wall switches or remotes that have stopped communicating with the valve. If your fireplace is producing soot on the glass or a sulfur-like odor, that’s usually incomplete combustion, and it’s worth addressing before it damages the firebox or your indoor air.

Chimney Inspection
Menlo Park’s mid-century chimneys hide problems well. The terra-cotta tile liners in 1950s-era fireplaces often have cracked or offset joints behind intact exterior brick, and you cannot see that from the ground or the roof. We run a camera inspection on every gas fireplace service call in Menlo Park, because gas appliances vent differently than wood, and a compromised flue can trap carbon monoxide inside even when the fireplace appears to be drawing fine. The inspection takes about 30 minutes, and we walk you through the footage afterward.

Chimney Relining
This is the repair that sets Menlo Park apart from newer suburbs to the south. Many gas inserts installed during the Silicon Valley renovation boom went into original, unlined or terra-cotta-lined masonry fireboxes without the stainless-steel flue liner that current code requires. If yours was done that way, we can reline with a properly sized stainless liner, often using HeatShield resurfacing for minor joint damage instead of a full tear-out. The work typically runs $2,200 to $4,800 in Menlo Park depending on flue height and accessibility, and it brings the venting system up to Title 24 standards.

Gas Log Set and Burner Service
Over time, gas log sets accumulate dust, pet hair, and fine particulate from the marine air that moves through Menlo Park year-round. That buildup clogs burner ports and causes the lazy yellow flames that mean inefficient burn and soot production. We clean and service gas logs from major manufacturers, inspect the gas connection points for leaks, and verify the flame pattern and thermocouple output before we leave. A standard log set service in Menlo Park runs $180 to $260.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Menlo Park
We work with the same professional trade materials chimney professionals specify, not box-store substitutes. That includes HeatShield resurfacing systems for relining older Menlo Park flues without demolition, Gelco chimney caps and chase covers that hold up to marine-layer moisture better than standard galvanized parts, and Olympia Chimney dampers and liners. We keep common ignition assemblies, thermocouples, and pilot components on the truck for Menlo Park calls, so most repairs don’t require a second visit for parts.
Common Gas Fireplace Repair Problems We See in Menlo Park Homes
- Gas inserts without a stainless-steel flue liner. We see this constantly in Willows and Belle Haven homes where the previous owner added gas logs to an original masonry fireplace. The gas appliance vents into a flue that was never rated for it, which leads to improper draft, condensation inside the chimney, and creosote-like residue building in unexpected places.
- Cracked terra-cotta tile joints behind intact brick. In 1950s-era single-flue chimneys throughout Menlo Park, the outer brick can look fine while the interior liner has offset joints. Only a camera inspection shows the damage, and this failure mode is a carbon monoxide risk when a gas appliance is venting through it.
- Marine-layer moisture accelerating crown deterioration. Menlo Park sits in the Bay’s persistent coastal moisture corridor. That means chimney crowns, mortar joints, and chase top flashing spall and crack faster than they do inland, and the moisture gets into the flue where it degrades the liner from the inside.
- Wall switch and remote failures on retrofit units. The low-voltage wiring and millivolt systems on older gas log sets degrade with heat exposure and humidity. Fixing it is usually straightforward, but the underlying cause is often a valve that’s struggling because the flue isn’t venting properly.
Pricing for Gas Fireplace Repair in Menlo Park, CA
A standard gas fireplace service call in Menlo Park runs $180 to $260 for cleaning, pilot adjustment, and burner inspection. Thermocouple or thermopile replacement typically adds $40 to $90 in parts and runs between $220 and $350 total. Gas valve replacement usually falls between $450 and $750 depending on the unit. If we find liner damage, a stainless-steel reline in Menlo Park ranges from $2,200 to $4,800, and a HeatShield resurfacing job starts around $1,200 for minor joint repair. You’ll get a written price before we start any work, and that’s not optional. Call (336) 863-3889 for a free estimate based on your specific fireplace and flue condition.
We Also Serve Cities Near Menlo Park
Our crews handle gas fireplace repair in Atherton, Stanford, Palo Alto, and Redwood City, and we know the housing stock differences between them as well as we know Menlo Park’s mid-century inventory. If you’re in a neighboring city and your fireplace won’t light, call (336) 863-3889 and we’ll schedule you with a technician who knows the chimney conditions in your specific neighborhood.
Serving Menlo Park, CA - Our Local Coverage Area
We’re based in the Menlo Park 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 – Gas Fireplace Repair in Menlo Park
A gas fireplace still produces carbon monoxide and water vapor, and if your Menlo Park home has an original unlined or terra-cotta-lined masonry chimney, that flue was built for wood burning, not the cooler, wetter exhaust from gas. The moisture condenses inside the tile, breaks down the mortar joints, and can allow carbon monoxide to seep into living spaces through hidden cracks. Current California code requires a stainless-steel liner for gas appliance venting. Call (336) 863-3889 and we’ll camera-inspect your flue to confirm what you have before recommending anything.
Once a year, before the heating season starts. In Menlo Park, the marine layer keeps chimneys damp through summer, which accelerates liner and mortar deterioration even when you’re not using the fireplace. A visual check from the roofline won’t catch interior liner damage. A yearly camera inspection is the only way to verify your flue is still venting safely. It costs less than most same-day repair visits and catches problems early. Call (336) 863-3889 to schedule one.
Soot building up on the glass, a pilot light that won’t stay lit, flames that look lazy or yellow instead of crisp blue, a smell of gas or sulfur when the unit runs, and any moisture or staining around the firebox or chimney breast are all reasons to stop using it and call us. In Menlo Park homes with retrofitted gas logs, poor draft from an undersized or damaged flue often causes symptoms that get mistaken for a bad valve. The fireplace itself may be fine, and the problem is actually upstream in the flue. We’ll show you the camera evidence before recommending any repair. Call (336) 863-3889.
Yes, and we do it regularly. The fix is usually a stainless-steel liner sized to the gas appliance’s venting requirements, which we install without disturbing the original masonry exterior. In the Willows, we recently serviced a 1955 ranch where a homeowner had added a gas log set without a stainless-steel flue liner. Our technician found first-degree creosote and a cracked terra-cotta tile joint hidden behind intact exterior brick, then installed a HeatShield liner and new damper to bring it up to code. The homeowner now has a safe, efficient gas fireplace and a much clearer picture of how to operate it without gumming up the flue. Call (336) 863-3889 for a free estimate.
Menlo Park sits directly in the Bay’s marine-layer corridor, so chimneys are exposed to persistent coastal moisture year-round, not just during winter rain. That moisture cycling accelerates mortar-joint deterioration and causes efflorescence on brick crowns, and it also saturates any residual creosote or combustion byproducts in the flue, making them stickier and more corrosive. For gas fireplaces specifically, the damp environment inside the chimney can rust dampers, corrode chase tops, and shorten the life of unlined terra-cotta flues. An annual inspection is the practical answer here. Call (336) 863-3889 to book yours.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, serving Menlo Park since 2002.





Before
After
Before
After
Before
After