What Gas Fireplace Repair in Flower Mound Covers
Gas fireplaces are the normal fireplace in Flower Mound. Most homes built from the 1990s on came with a factory-built gas fireplace, or a wood fireplace with a gas starter that later got a log set. They sit idle from March to October, then everyone lights them on the first cold night in November and finds out what quit over the summer. That is the week our phone rings.
Flower Mound Chimney Sweep Professionals repairs the gas fireplace itself. A visit runs in this order:
- Listen and look. You tell us what the fireplace does and does not do. We pull the lower louver or the glass and read the model tag.
- Test the pilot system. On a millivolt system we read the thermocouple and thermopile output with a meter. On an electronic ignition we check the module, the spark and the flame sensor.
- Clean the burner and pilot. Dust, pet hair and spider webs come out of the pilot hood, the burner ports and the air shutter. Most “will not light” calls end here.
- Check the valve, switch and remote. We test the wall switch, remote receiver and the gas valve coils, then replace only the part that failed.
- Reset the logs and check the vent. Logs go back in the pattern on the manufacturer’s diagram. A camera goes up the vent or flue to confirm it is clear and intact.
- Written price. If a part is needed, you get the price in writing before we install it.
Signs You Need Gas Fireplace Repair
- The pilot will not light, or lights and goes out when you let go of the knob
- The burner lights, runs a few minutes and shuts off
- Flames are lazy, yellow and sooty on a direct-vent or vent-free unit
- Black soot on the logs, the glass or the wall above the opening
- A clicking igniter with no flame
- The wall switch or remote does nothing, but the pilot is lit
- A gas smell near the fireplace, which means shut the valve and call the gas company first
- A carbon monoxide alarm that sounds when the fireplace runs
The last two are safety calls. The National Fire Protection Association explains how carbon monoxide builds up from fuel-burning appliances with blocked venting on its carbon monoxide safety page. Any Flower Mound home with a gas fireplace should have a CO alarm on the same floor.
Common Gas Fireplace Problems and Fixes
| Symptom | Usual cause | What we do |
|---|---|---|
| Pilot will not stay lit | Thermocouple or thermopile worn or dirty | Clean, test with a meter, replace if below spec |
| No spark, no pilot | Dead igniter battery, bad module, dirty electrode | Replace battery or module, clean electrode |
| Burner will not come on | Low thermopile output, failed valve, bad switch | Test millivolts, replace valve or switch |
| Yellow sooty flame | Logs misplaced, clogged burner, closed air shutter | Reset logs, clean burner, adjust shutter |
| White haze on glass | Normal mineral film, or logs sooting | Clean glass, reset logs |
| Fireplace shuts off after minutes | Oxygen sensor on vent-free, weak thermopile, overheating | Clean ODS pilot, test output, check clearances |
| Cold air pours in | Open damper clamp on vented logs, failed vent cap | Check damper, replace cap, consider a vent-free set or insert |
Gas Line Work and the Licensed Plumber
The pipe that carries gas from the meter to the fireplace is plumbing. Texas reserves gas piping for plumbers licensed by the Texas State Board of Plumbing Examiners. We follow that line. When a repair needs the gas line moved, extended, re-pressure-tested or capped, we coordinate a licensed plumber and schedule the two visits together so you are not waiting on anyone. Everything from the appliance shutoff valve forward, meaning the flex connector, valve, burner, pilot and logs, is ours.
Gas Log Installation
When the log set itself is the problem, cracked ceramic logs, a burner rusted through or a set so old that parts are gone, replacing the set is cheaper than repairing it. Our gas log installation page covers vented and vent-free sets, sizing to the firebox and setup for a clean flame.
Fireplace Cleaning
Most gas fireplace repair calls in November would have been a cleaning call in September. Dust on the pilot, a clogged burner and logs that shifted are all caught by a yearly fireplace cleaning. The cleaning includes a pilot and burner check, so you find out about a weak thermopile before the first cold front, not during it.
Chimney and Vent Problems
Some gas fireplace problems are above the firebox. A vented log set in a masonry fireplace needs an open, intact flue. Water in the flue from a cracked crown, a missing cap or a rusted chase cover rusts the damper and the burner from above. A flue with cracked tiles needs a stainless liner before gas logs should run in it. And a fireplace that sends cold air or exhaust into the room is a draft problem, which our chimney downdraft repair page covers. Every gas fireplace repair includes a camera look at the vent, so these show up on the same visit.
Book Gas Fireplace Repair in Flower Mound
Flower Mound Chimney Sweep Professionals is veteran-owned and based on Long Prairie Rd (FM 2499) in Flower Mound 75028. We repair gas fireplaces in Flower Mound, Lewisville, Southlake, Colleyville, Keller, Fort Worth and Collin County, 7 days a week from 7 AM to 8 PM. Call (817) 518-6131 or send the form on this page. You get a written price before any part goes in, and repair estimates are free. For wood fireplaces, dampers and fireboxes, start at our fireplace repair page.
