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 San Diego: What to Know First
We repair Gelco gas and wood-burning fireplaces throughout San Diego, and most jobs are completed in a single visit once parts are in hand. A typical Gelco repair in this market runs between $180 and $650 depending on what failed (a thermocouple is far cheaper than a new gas valve), and every job gets a written price before we start. If you own a Gelco fireplace that’s acting up, this page explains what’s actually going wrong and what it costs to fix it. Call (619) 693-1499 to schedule service.
We’re an independent Gelco service provider, not a factory-authorized shop, which means we can use quality aftermarket parts when they make sense and we don’t have to wait on a manufacturer dispatch schedule. Nathan Corliss built this business on a simple habit: say the price first, explain the work, put the promise in writing. We’ll get into the details below.
- We repair Gelco gas, wood-burning, and insert fireplaces across San Diego, from Chula Vista to Oceanside to El Cajon.
- Most Gelco repairs cost $180-$650; full firebox rebuilds can run higher.
- Every repair includes a written price up front and a written guarantee on the back end.
- We’ve worked through Gelco thermocouple, pilot, damper, and firebox failures for years; we know which parts fail and why.
How Gelco Products Fail – and How We Fix Them
Gelco makes solid fireplaces and gas components, but every brand has its weak points. Here are the failures we see most often on Gelco units in San Diego homes, and how we address them:
- Gelco gas valve failure on GMPB and GS models. The gas valve is the component that controls fuel flow to the burner, and on older Gelco gas units we see the internal seals dry out, especially in homes near the coast where salt air works on the brass fittings. Symptom: the pilot lights but the main burner won’t kick on. The fix is a replacement valve; we’ll always price the OEM Gelco valve first and offer a quality aftermarket option side by side if one exists, so you know exactly what you’re paying for.
- Thermocouple dropouts on Gelco gas log sets. The thermocouple is a small sensor that tells the gas valve the pilot flame is still lit. On Gelco units that get heavy use in winter, the thermocouple tip gets coated with residue and sends a weak signal, causing the fireplace to shut off mid-burn. This is one of the most common Gelco service calls we run in San Diego, and it’s also one of the least expensive to fix. We clean the pilot assembly while we’re in there so the problem doesn’t return in six weeks.
- Warped refractory panels in Gelco vent-free and B-vent fireboxes. The firebox panels inside a Gelco unit absorb and reflect heat. After years of thermal cycling, we see the panels start to hairline-crack and eventually crumble at the edges. Homeowners sometimes mistake this for a catastrophic failure; in most cases it’s a panel replacement, not a fireplace replacement. We spec the correct Gelco-dimension panels so they seat tight against the firebox walls.
- Damper binding on Gelco wood-burning units. San Diego’s dry summers and damp coastal mornings cause the metal damper plate on older Gelco wood fireplaces to rust and bind, especially in homes built near Mission Bay, Point Loma, or anywhere the marine layer rolls in. Symptom: you can’t fully open or close the damper, which means smoke backs into the room or the flue won’t seal in summer. We free the damper assembly, replace the hinge hardware when needed, and test it through open-close cycles before we call the job done.
- Pilot light that won’t stay lit on Gelco direct-vent inserts. On Gelco direct-vent inserts, the pilot assembly gets clogged with dust and tiny debris carried in from outside air, particularly in neighborhoods like Rancho Bernardo and Scripps Ranch where wind-driven dust is common. We disassemble the pilot, clean the orifice, and verify the flame signal with a multimeter before reinstalling. If the pilot tube itself is cracked or corroded, we replace it.
Styles & brands we work with





Our Gelco Fireplace Repair Process
Here’s exactly how a Gelco repair goes from the first call to the final test:
- 1
You call (619) 693-1499. A real person answers, day or night, and we schedule a service window that we actually honor.
- 2
We diagnose. Our tech arrives, lights the unit, watches what it does, and tests the suspect components with a meter before recommending anything. We don’t replace parts on hunches.
- 3
You get a written price. The number we quote at the door is the number you pay. If we find additional issues during the repair, we stop and get your approval before continuing.
- 4
We make the repair. We use Gelco OEM components where they make sense, and when an aftermarket part from DuraFlex or another trade brand is the better value, we tell you why and let you decide.
- 5
We test the unit through at least three full on-off cycles. We verify proper flame pattern, pilot stability, and safe gas pressure before we put the front panel back on.
- 6
You get a written guarantee. Every Gelco repair carries our written guarantee, and if the covered repair fails inside the guarantee period, we come back and fix it at no charge. That’s the 365-Day Done Right Promise.
See the difference
Before
After
Before
After
Before
AfterWhat Gelco Fireplace Repair Costs in San Diego
| Repair Type | Typical Cost Range |
|---|---|
| Thermocouple or thermopile replacement (parts included) | $180 – $290 |
| Pilot assembly cleaning and adjustment | $150 – $260 |
| Refractory panel replacement (per panel) | $140 – $300 |
| Damper repair or replacement | $220 – $480 |
| Gas valve replacement | $350 – $650 |
What moves the price is the model line, the age of the unit, and whether we’re working with an insert, a built-in, or a freestanding unit. Parts delays from manufacturers can also affect timeline, though most Gelco components are available through our supplier network quickly. Every estimate is free, and we’ll never start work without a written price in your hand.
Why San Diego Homeowners Call Ashby Chimney San Diego for Gelco Work
We’ve been doing this since 2002, and the thing that keeps Gelco owners in San Diego calling us back isn’t a secret. It’s that we write down the price, explain exactly what’s broken, and stand behind the work in a way most repair companies won’t. Every job carries a written guarantee. Every call gets answered by a human. And when we run into a Gelco unit that’s genuinely beyond saving, we’ll tell you that straight, rather than pad a repair bill to keep the job. For Gelco units that need components from other brands, we work with DuraFlex and HeatShield products regularly, so we’re not locked into one parts stream. Each Ashby location is independently owned and operated under the Kingswell Guarantee, which covers our work the same way in San Diego as it does at our sister shops.
FAQs
In most cases, no. Using independent service on a Gelco unit does not automatically void your factory warranty, and we’re careful to use parts that meet or exceed OEM specs when warranty coverage is still active. If your unit is still under a Gelco factory warranty, we’ll flag that and work with you on the right path.
Most Gelco parts are available through our San Diego supplier network within a few days, and many common components like thermocouples and pilot assemblies are on our trucks already. We complete the majority of Gelco repairs in one visit. Call (619) 693-1499 for a quote and a real arrival window.
Nine times out of ten on a Gelco gas unit, that’s a failing thermocouple or a pilot flame that’s too small to keep the sensor hot. Both are common failures on Gelco units in San Diego, especially ones that run hard through our mild winters. It’s usually a fast, affordable fix, and we’ll test the unit properly before we go.
If the firebox is structurally sound and the gas train is in good shape, repair is almost always the better value. San Diego homes with Gelco units from the mid-2000s to present typically have plenty of usable life left. We’ll tell you honestly when a repair doesn’t make sense and explain what a replacement would cost so you can decide with real numbers.
Ready to get your Gelco fireplace running right? Call (619) 693-1499 and we’ll get you on the schedule with a written price before we start.
Written by Nathan Corliss, Owner, Ashby Chimney San Diego at Ashby Chimney San Diego, serving San Diego and nearby areas.