Heating Repair in Southlake, TX
Fast, honest, flat-rate residential furnace and heat pump repair in Southlake. Diagnostic $85 (waived with repair). Licensed TACLA126718E, EPA 608 Universal certified, family-owned since 2018.
How Much Does Heating Repair Cost in Southlake?
Furnace repair in Southlakestarts at $85 for the diagnostic (waived with any repair). Most common heating repairs fall in the $250-$1,300 range. We're flat-rate, which means the price quoted before we start is the price you pay at the end. Frosty Club members save 10-15% on every repair.
| Repair | Regular Price | Frosty Club Member |
|---|---|---|
| Diagnostic / service call(Waived with repair) | $85 | $72.25 |
| Furnace ignitor replacement | $400 | $340 |
| Flame sensor replacement | $400 | $340 |
| Pressure switch replacement | $250 – $550 | $212.50 – $467.50 |
| Pilot assembly replacement | $350 – $550 | $297.50 – $467.50 |
| Gas valve replacement | $400 – $1,200 | $340 – $1,020 |
| Inducer motor replacement | $500 – $1,300 | $425 – $1,105 |
| Blower motor (standard) | $750 – $1,500 | $637.50 – $1,275 |
| Blower motor (ECM) | up to $2,800 | up to $2,380 |
| Control board (universal) | $500 | $425 |
| Control board (ECM / modulating) | up to $3,500 | up to $2,975 |
| Thermostat (basic) | $350 | $297.50 |
| Thermostat (programmable) | $500 | $425 |
| Cracked heat exchanger(CO safety — never repaired) | FULL FURNACE REPLACEMENT | FULL FURNACE REPLACEMENT |
Cracked Heat Exchanger: Safety First
A cracked heat exchanger means combustion gases — including carbon monoxide — can leak into your home's air supply. We NEVER repair a cracked heat exchanger. The only safe fix is a full furnace replacement. If I find a crack during diagnostic, I red-tag the unit on the spot and show you our three replacement tiers. Learn more about CO safety at the EPA.
Save More with Frosty Club
Basic ($99/yr):10% off all services | Premium ($300/yr): 15% off + $500 repair credit + 2 free tune-ups (fall heating + spring AC)
Join Frosty ClubWhat Are the Most Common Heating Problems in Southlake?
Texas winters are mild, but furnaces still need regular service — and when they fail on a 28°F January morning, they tend to fail all at once. Here's what I see most often on Southlakeheating calls, and what each one typically costs to fix.
Furnace won't ignite
Failed hot-surface ignitor ($400) or coated flame sensor ($400). Both are same-day fixes. The $85 diagnostic identifies the exact cause.
Blowing cold air instead of hot
Usually a failed ignitor, bad flame sensor, or a stuck gas valve. We run a combustion analysis to confirm the exact cause before quoting.
Loud buzzing or grinding
Dying inducer motor ($500-$1,300) — the draft fan pulling combustion gases through the heat exchanger. Replace before it takes out the control board.
Short cycling (on/off/on/off)
Dirty flame sensor, failing limit switch, or restricted airflow. Can be an early warning of a heat exchanger issue — we diagnose carefully.
Gas smell or CO alarm
EMERGENCY — leave the house, call Atmos Energy at 866-322-8667, then call us. We locate the leak source and repair or red-tag as required.
Cracked heat exchanger
Carbon monoxide risk — NEVER repaired. Full furnace replacement required for safety. We confirm with combustion analyzer and bore-scope inspection.
Why SouthlakeHomeowners Trust Frosty's for Heating Repair
Southlake winter calls are a different beast than what we see in older DFW neighborhoods. Most 76092 homes have dual-fuel setups — a heat pump that handles the mild stuff down to about 35-40°F, with a gas furnace as the backup heat source when temperatures drop below that. When a Southlake heating system fails in December or January, we usually find one of three things: a failed defrost board on the heat pump (so it stops switching to gas backup correctly), a cracked hot-surface ignitor on the furnace ($400), or a failed inducer motor ($500-$1,300). Dual-fuel control boards that aren't communicating between the two systems are the trickiest call — that takes a real diagnosis, not a parts-cannon.
On the gas furnace side, the heat exchanger is the one I worry about most. Crack a heat exchanger and you get carbon monoxide in the supply air — which means we're not repairing it, we're condemning the furnace and quoting a full replacement. Every diagnostic we do in Southlake includes a CO check at the supply register and a visual inspection of the heat exchanger where we can access it. In Southlake the equipment is newer (most furnaces are 10-15 years old, not 25-30), so cracked heat exchangers are less common here than in older neighborhoods — but I still find them occasionally on early-2000s installs. If I see rust, scale, or flame impingement, I tell you straight. I'd rather lose a repair job than let a family breathe CO.
Multi-zone Southlake homes have an extra failure mode: one zone heats fine, one zone doesn't. That's usually a zoning damper stuck in the wrong position, a failed zone control board, or an outdoor ambient sensor that's lying to the dual-fuel controller about the temperature. None of those are thermostat issues. Our $85 diagnostic (waived with repair) finds the actual cause and we quote the repair flat-rate. Common Southlake winter prices: ignitor $400, flame sensor $400, gas valve $400-$1,200, inducer $500-$1,300, zoning damper actuator $400, defrost board $400-$700. Call (469) 254-0548.
Neighborhoods we serve in Southlake: Southlake Town Square, Carillon, Timarron, Shady Oaks
Why Our Credentials Matter for Heating Repair
TACLA126718E
Texas HVAC Contractor License held by Mariafernanda Jacobo. Issued and regulated by the Texas Department of Licensing and Regulation.
EPA 608 Universal
Omar Jacobo, #2396328. Required by the U.S. EPA for any refrigerant work on heat pumps (R-22, R-410A, R-454B, R-32). Also ensures safe combustion analysis standards.
Energy Star Partner
Replacement heating systems meet or exceed U.S. Department of Energy minimums. 90%+ AFUE furnaces and ENERGY STAR heat pumps qualify for some utility rebates.
Learn more about our credentials on our About page or visit omar-jacobo.com.
Heating Repair FAQ for Southlake, TX
How much does furnace repair cost in Southlake, TX?
Diagnostic $85 flat (waived with repair). Common Southlake furnace repairs: hot-surface ignitor $400 ($340 for Frosty Club members), flame sensor $400 ($340), gas valve $400-$1,200 ($340-$1,020), inducer motor $500-$1,300 ($425-$1,105), pressure switch $250-$550. Flat-rate, so you see the total before we start.
My Southlake home has a dual-fuel system — can you service that?
Yes — dual-fuel (heat pump + gas furnace backup) is what we see most often in 76092 homes. We diagnose and repair the heat pump side, the gas furnace side, and the dual-fuel control board that switches between them. Common dual-fuel failures: defrost board faults, outdoor ambient sensor failures, and miscalibrated changeover temperature settings.
Is my furnace safe to run if the heat exchanger is cracked?
No. A cracked heat exchanger leaks combustion gases — including carbon monoxide — directly into your supply air. We don't repair cracked heat exchangers because they can't be safely welded back to spec. Instead, we quote a full furnace replacement. Every Southlake diagnostic includes a heat exchanger inspection and CO check at the supply register.
Why is one zone of my Southlake home cold while the others are fine?
Almost always a zoning system issue, not a furnace issue. Common causes: stuck zoning damper actuator (can't open the cold zone), failed zone control board, or a thermostat communication fault on that zone. Replacing the thermostat usually doesn't fix it. The $85 diagnostic isolates the failure point.
My Southlake furnace smells like something burning — should I call?
First time in the fall — that's usually dust burning off the heat exchanger and goes away in a few minutes. Normal. If the smell persists, is electrical, or smells like gas, shut the system off at the thermostat and call us at (469) 254-0548. Electrical smells mean an overheating motor or wiring; gas smell means leave the house and call the gas company first.
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Call us or request service online. Same-day appointments available for Southlake homeowners during winter cold snaps. Flat-rate pricing — no surprises, no hourly charges, no upsell scripts.
Written by Omar Jacobo, EPA 608 Universal Certified Lead Technician at Frosty's HVAC LLC. Licensed TACLA126718E.
Written by
Omar Jacobo
EPA 608 Certified Technician (#2396328) | Co-Owner, Frosty's HVAC LLC
Omar has been serving local homeowners since 2018. Learn more
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