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.
Gelco Fireplace Repair in Los Angeles: What to Know First
We provide independent Gelco fireplace repair throughout Los Angeles, and most jobs are completed in a single visit of 90 minutes to two hours. Repairs on common Gelco fireplaces typically run between $165 and $480, and we give you a written price before any work begins, so the number on the invoice matches the number we quoted at the door. If you own a Gelco fireplace and it’s acting up, call (213) 652-7061 and we’ll tell you what we think before we ever set foot in your living room.
As an independent Gelco service provider, we’re not affiliated with the manufacturer. That means we have no quota to sell you a new unit. Our only job is to figure out whether your existing Gelco fireplace is worth fixing, and if it is, to fix it right and guarantee the work in writing.
Key Takeaways
- Most Gelco fireplace repairs in Los Angeles cost between $165 and $480, quoted in writing before we start.
- Common Gelco failures include pilot assembly issues on direct-vent units, thermocouple fatigue on older millivolt systems, and glass gasket deterioration.
- We stock aftermarket components that fit Gelco fireplaces when OEM parts are six to ten weeks out, and we’ll tell you which path makes sense before you spend a dollar.
- Every repair is covered by our written guarantee. If it fails inside the coverage period, we come back at no charge.
How Gelco Products Fail – and How We Fix Them
Gelco made fireplaces and gas log sets that landed in thousands of Los Angeles homes from the late 1980s through the mid-2000s, and almost all of them share the same aging patterns. Here’s what we see on service calls, model after model:
- Pilot light drops on Gelco direct-vent units before the gas even lights. The most common culprit is a thermocouple that’s been sitting next to a pilot flame for 15 to 30 years and has finally lost its millivolt signal. We see this on Gelco’s Millivolt line regularly in older homes in the San Fernando Valley. If the thermocouple reads weak, we replace it with a current-production equivalent rather than trying to clean or re-bend an old one, because a cleaned thermocouple fails again in three months and you’re back on the couch with a cold firebox.
- Glass doors that drip soot inside after the first burn. Gelco fireplaces rely on a rope gasket set into the glass frame to keep combustion air moving through the designed intake path. In Los Angeles, that gasket gets hit with radical day-night temperature swings and low humidity, so it dries out and flattens years earlier than it would in, say, Portland. When the gasket fails, air sneaks in around the glass, and the fire burns dirty. We re-seat the glass with a proper rope gasket and test it hot before we leave, because a fireplace that’s fine when cold and smoky when hot is a gasket problem, not a log problem.
- Burner tubes that rust from the inside out. Large swaths of Los Angeles sit close enough to the ocean that morning marine air pushes in through the flue, and Gelco’s tubular steel burners are not known for their rust resistance. We see flame height drop as the burner perforations clog, and in bad cases, rust scale separates inside the tube and you hear a rattle when you slide the logs. We replace burned-out Gelco burners with stainless aftermarket tubes sized to the unit. Stainless costs a little more and outlasts the original steel by a decade.
- Standing pilot stops staying lit on Gelco’s older ValvCo gas valve lineup. We run into this on Gelco models in mid-century ranch homes across the San Gabriel Valley. The original ValvCo valve is obsolete, and Gelco no longer supports it. The good news is the valve swaps out for a modern millivolt-compatible replacement without changing the footprint of the fireplace, and the job is usually under two hours. The honest caveat is that we cannot rebuild a 30-year-old valve that is no longer manufactured, and we’ll tell you that before we order anything.
- Fiber log sets that have turned white and crumbly. Gelco’s ceramic fiber log sets degrade when they are baked across too many burn cycles, especially in fireplaces that get used heavily during cooler Los Angeles winters. Crumbling logs shed dust into the firebox and can shift off the burner, which affects combustion. We replace them with masonry-grade refractory log sets that look better than the originals, and we re-set the log pattern to match the original airflow, because moving a log an inch changes how the flame touches the thermocouple.
Styles & brands we work with





Our Gelco Fireplace Repair Process
- 1
You call (213) 652-7061, and a live person answers. No voicemail tree, no callback form. We ask what the fireplace is doing, what brand it is, and how old it is, if you know.
- 2
We show up in the arrival window we gave you. Uniformed, background-checked technician, with a badge you can read. You know exactly who’s walking into your home.
- 3
We diagnose in front of you and write down the findings. We test the pilot signal with a multimeter, pull the glass and inspect the gasket and the log set, and check the flue from the firebox side. You’ll see the numbers and the explanation before any repair is approved. The price we quote is the price on the invoice.
- 4
Parts decision, made together. If Gelco OEM parts are available at a reasonable lead time, we use them. If OEM is backordered six to ten weeks, which happens increasingly with Gelco’s older lines, we tell you the aftermarket equivalent and the cost difference. You choose, informed, with no pressure.
- 5
We repair, then test the fireplace hot. We light it, cycle the valve, read the millivolts, and watch the flame. We don’t leave until it runs right and the glass is re-seated clean.
- 6
You get a written guarantee before we leave. The Kingswell Guarantee covers the work we just did. If it fails inside the guarantee period, we return and correct it at no charge. That’s the 365-Day Done Right Promise.
See the difference
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AfterWhat Gelco Fireplace Repair Costs in Los Angeles
Here’s the straight math on what we charge for Gelco work in Los Angeles. These are our actual price ranges for common jobs:
| Repair | Typical Los Angeles Cost |
|---|---|
| Pilot assembly or thermocouple replacement | $165 – $260 |
| Glass gasket replacement with testing | $120 – $190 |
| Burner tube replacement (single tube) | $180 – $320 |
| Valve replacement (millivolt-compatible) | $280 – $480 |
| Fiber log set replacement (refractory) | $200 – $380 |
What moves the price: access to the gas line, whether the unit is a built-in or a freestanding unit inside a cabinet, and whether we’re dealing with Gelco OEM versus aftermarket parts. If the diagnosis points to a new fireplace rather than a repair, we’ll say so plainly, with no upsell. Call (213) 652-7061 and we’ll give you a free estimate over the phone based on what you’re seeing, then refine it in writing once we inspect.
Why Los Angeles Homeowners Call Ashby Chimney Los Angeles for Gelco Work
We’ve been repairing fireplaces across Los Angeles since 2002, and we operate under the Kingswell Guarantee, which means the same five commitments on every Gelco job, every time: say the price first, show up in the window, leave it cleaner than we found it, put the guarantee in writing, and come back if it fails. Nathan Corliss has been cleaning and repairing flues across the LA basin for going on eighteen years, and he’s the guy neighbors call when they want a straight answer about whether their firebox is safe to light come November.
Gelco is one of the brands we know best, but we also work on DuraFlex and HeatShield systems every week, which gives us a multi-brand view of what actually fails and what’s just aging gracefully. That matters when a Gelco owner is trying to decide between a $220 repair and a $2,800 replacement. We’ll give you our honest read, and we’ll put the guarantee on paper regardless of the size of the job.
Say the price first, put the promise in writing, and leave the firebox cleaner than you found it.
FAQs
If your Gelco fireplace is still under the original manufacturer warranty, work done by an independent service provider like Ashby Chimney Los Angeles does not automatically void it, provided the parts used meet the manufacturer’s specifications and the work does not alter the unit’s original design. We’re careful to preserve original fit and function, and we’ll tell you before the repair whether an aftermarket part might be a warranty question. If you want Gelco OEM parts only, we order them and the job takes however long the manufacturer takes to ship, which right now is occasionally several weeks.
Most Gelco repairs are done in one visit of 90 minutes to two hours, as long as the necessary part is stocked or available locally. Common wear items like thermocouples, thermopiles, rope gaskets for glass, and pilot assemblies we keep on the truck. If we need an OEM Gelco part that’s backordered, we give you the honest lead time and let you choose whether to wait or use a comparable aftermarket part. Call (213) 652-7061 and we’ll give you a real answer before you commit to anything.
Repair is usually the right call if the firebox is structurally sound, the gas valve is still supported or has a known compatible replacement, and the total repair bill stays under about 35% of the cost of a new unit. A $300 repair on a Gelco that would otherwise run another five to ten years is sensible money. Where we draw the line is when the firebox itself is cracked, the valve is obsolete with no reliable replacement, and the log set is crumbling, because that’s three separate repairs adding up to near the cost of a mid-level new insert. We’ll show you our reasoning, and never push a replacement you don’t need.
Intermittent pilot failure on an older Gelco that works fine and then just quits is almost always a thermocouple losing its millivolt output as it heats and cools, or a failing high-limit switch on the direct-vent models. The frustrating part for our Los Angeles customers is that it often passes a cold test and fails only after the unit is running for twenty minutes. That’s why we test hot, not cold, before we hand it back to you. Intermittent pilots are one of the jobs where an experienced Gelco diagnosis saves you from paying for a part you did not need. Call us and describe the pattern, we’ll tell you what’s likely before we even book the visit.
The Kingswell Guarantee covers the repair we performed and the parts we installed for the guarantee period stated on your invoice, typically one year for most component replacements. If the same repair fails inside that window, we return at no charge, correct it, and re-test the fireplace hot before we leave. The guarantee is written, not verbal, and it is included with every job as a matter of course. Nobody sells it to you as an add-on. That’s the 365-Day Done Right Promise, and it applies to every Gelco repair we do in Los Angeles.
If your Gelco fireplace is acting up and you want a straight answer, call (213) 652-7061 for a free estimate. A live person answers, we give you a written price before any work starts, and we stand behind the repair in writing.
Written by Nathan Corliss, Owner, Ashby Chimney Los Angeles at Ashby Chimney Los Angeles, serving Los Angeles and nearby areas.