Heating Repair in Frisco, TX
Fast, honest, flat-rate residential furnace and heat pump repair in Frisco. Diagnostic $85 (waived with repair). Licensed TACLA126718E, EPA 608 Universal certified, family-owned since 2018.
How Much Does Heating Repair Cost in Frisco?
Furnace repair in Friscostarts 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 Frisco?
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 Friscoheating 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 FriscoHomeowners Trust Frosty's for Heating Repair
Frisco sees 20-30 freeze nights a year, and that's enough to expose every weak point in a heating system that sat untouched from April to October. Because most Frisco homes are 1990s-2020s builds, the heating systems we work on are usually a mix of 96% AFUE two-stage gas furnaces (Phillips Creek Ranch, Stonebriar) and dual-fuel heat pump setups (very common in homes built after 2015). The December-January call list runs like clockwork: cracked hot-surface ignitors ($400), dirty flame sensors ($400), stuck or failed gas valves ($400-$1,200), and aging inducer motors ($500-$1,300). Same symptom on all of them — furnace tries to light, fails, goes into lockout.
On a dual-fuel system the winter failures look completely different. Defrost board faults, failed reversing valves, and outdoor TXV issues are the top three. A heat pump is supposed to briefly run in cooling mode during a defrost cycle to melt frost off the outdoor coil — so if you see steam rolling off the outdoor unit on a 28°F morning, that's normal, not a problem. What's NOT normal is a heat pump running constantly without ever switching to gas backup when the outdoor temp drops below 35°F. That's a thermostat changeover or outdoor sensor issue, and it's a flat-rate fix.
The heat exchanger is the one I worry about most on any furnace call. Crack a heat exchanger and combustion gases — including carbon monoxide — leak straight into the supply air. We don't repair cracked heat exchangers because they can't be welded back to spec safely. Every Frisco diagnostic includes a CO check at the supply register and a visual inspection of the heat exchanger where I can see it. If I find rust, scale, or flame impingement, I tell you straight. I'd rather lose a repair job than let a family breathe CO. Call (469) 254-0548 — diagnostic is $85 (waived with repair).
Neighborhoods we serve in Frisco: The Star, Stonebriar, Frisco Lakes, Phillips Creek Ranch
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 Frisco, TX
How much does furnace repair cost in Frisco, TX?
Diagnostic $85 flat (waived with repair). Common Frisco 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. We're flat-rate, so you see the total before we start.
Do you repair dual-fuel heat pump systems in Frisco?
Yes — dual-fuel (heat pump + gas furnace backup) is one of the most common setups in newer Frisco builds. We diagnose defrost board faults, failed reversing valves, outdoor TXV problems, and changeover thermostat issues. We service Carrier, Trane, Goodman, Lennox, Rheem, and all major residential brands.
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 Frisco diagnostic includes a heat exchanger inspection and a CO check at the supply register.
Why isn't my Frisco heat pump switching to gas backup when it gets cold?
That's usually a thermostat changeover setting or an outdoor temperature sensor problem. A dual-fuel system should switch from heat pump to gas furnace when outdoor temp drops below the changeover point (usually 30-35°F). If your heat pump is running constantly in 25°F weather and electric strips aren't kicking in either, the changeover logic is broken. Diagnostic $85 flat.
My Frisco 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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Need Heating Repair in Frisco Right Now?
Call us or request service online. Same-day appointments available for Frisco 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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