Furnaces and heat pumps, fixed right.
Heating / Furnace Repair & Installation in Hermitage, Tennessee
Middle TN winters are mild until they aren't. The January 2024 cold snap and the ice storms since are why we check ignition, defrost cycles, and AUX heat before you need them, and why dispatch stays open 24/7.
Live dispatcherUpfront optionsClear written scope
What's included
Heating Work We Do
Gas, electric, heat pump, or dual-fuel: we work on what's in your home, not what we'd rather sell you.
Gas Furnace Repair
Ignitors, flame sensors, inducer motors, gas valves, and controls, with safety checks on every visit.
Heat Pump Repair
Reversing valves, defrost boards, refrigerant charge, and AUX heat diagnosis for electric systems.
Full System Replacement
Manual J load calculation, right-sized equipment, and ductwork review. No oversized guesses.
Safety and Code Checks
Carbon monoxide screening, gas connection inspection, and venting review on every heating call.
Service overview
Heat Pumps, Gas Furnaces, and Dual-Fuel in Middle TN
Most Hermitage listings read "Heating: Central, Electric," which is why heat pumps dominate here. Air-source heat pumps carry the heating load comfortably through most of a Middle TN winter, with electric backup strips kicking in during the rare deep freezes. Natural gas is available in newer subdivisions, and dual-fuel, a heat pump paired with a gas furnace, is the upgrade some homeowners choose for cold snaps.
The mistake is assuming mild winters mean heating never matters. The February 2021 ice storm knocked out power across Middle TN for days, and the January 2024 stretch brought single-digit nights and TVA's largest power demand ever recorded. That's when weak ignitors crack, defrost boards fail, and heat pumps ice over. We run Hvac Repair Pro heating calls across the Villages of Riverwood, Hermitage Hills, and Reserve at Stone Hall, and the fall tune-up is what separates the homes that stayed warm from the ones that called at midnight. Curious about the tradeoffs? Trane's heat pump versus furnace comparisons lay out how each system handles cold. For room-by-room zoned heating, our mini-split heat pumps handle most Middle TN winters on their own.
How we workWe verify the cause, compare realistic options, and confirm the repair before we leave.
The service timeline
From First Call to Final Walkthrough
The process flexes to the condition, but these checkpoints keep decisions clear.
Initial Consultation
We talk through your symptoms and concerns, and flag anything that sounds like a safety issue first.
System Inspection
Full diagnostic: ignition sequence, heat exchanger, defrost operation, refrigerant charge on heat pumps.
Repair or Install Plan
Options with real numbers, including repair-versus-replace math when the unit's age makes it a question.
Execution of Work
Repairs or installation done to code, with gas and venting checks before we call it finished.
Final Walkthrough
We show you what was done, hand over the readings, and walk through filter and thermostat basics.
Tools & methods
Diagnostics, Not Guessing
Purpose-built equipment, used by trained technicians, so the job is done accurately the first time.
Combustion Analyzer
Reads burner performance and venting safety on gas furnaces, the test that keeps families safe.
Manometer
Verifies gas pressure is within spec before we blame any other part.
Manifold Gauges
Heat pump refrigerant charge and reversing valve operation, checked against targets.
Meters and Temperature Probes
Electrical diagnostics and supply-air temperatures that confirm the system is actually heating.
Use cases
Calls We Get After a Cold Snap
January is our honest season. These are the patterns.
AUX Heat Stuck On
A heat pump ran its backup strips nonstop and the bill spiked. Low refrigerant was keeping the outdoor unit from carrying the load. Recharged to spec and the AUX light went quiet.
The Gas-Smell Call
We tell every caller the same thing: rotten-egg smell means leave the house and call the gas company first, not us. This one turned out to be a small leak at the meter, which the utility fixed. Safety before speed, always.
Problems we solve
Heating Problems We Solve
Cold air, no air, and scary noises, in that order of how often we hear them.
Furnace blowing cold air
Usually the thermostat fan set to ON, or ignition trouble. We check the simple things before the expensive ones.
Heat pump iced over
Light frost is normal. A block of ice that won't defrost means airflow, defrost controls, or refrigerant.
Banging and smells at startup
Delayed ignition bangs, dust smells fade. Persistent burning or electrical smells mean call now.
Pricing process
What Heating Work Typically Costs
$180 - $450 depending on scope
Type of repair
An ignitor and a control board are different jobs with different prices. The diagnostic tells us which.
Parts involved
Quality replacement parts cost more than the cheapest option and outlast them. We quote what we'd install in our own homes.
System age
A 20-year-old furnace with a dead heat exchanger is a replacement conversation, and we'll say so plainly.
What to expect
What to Expect When You Book
STEP 1
The call
A live dispatcher takes your symptoms and checks for safety issues first, like gas smells or no heat with vulnerable people home. Then a same-day window.
STEP 2
Upfront options
The tech diagnoses the failure, shows you the readings, and prices repair versus replacement honestly when the unit's age makes it a question.
STEP 3
The walkthrough
After the work, we run the system through full cycles, hand you the readings, and explain what to watch for next winter.
Why is my furnace blowing cold air?
Check the thermostat first: if the fan is set to ON instead of AUTO, the blower runs between heating cycles and pushes room-temperature air through the vents. If it's on AUTO, suspects are a dirty filter, a failed ignitor, a dirty flame sensor, or an overheating shutdown. Smell gas or rotten eggs? Leave the house and call the gas company or 911, not an HVAC tech first.
My heat pump blows cool air in heat mode. Is it broken?
Probably not. Heat pumps deliver air around 85-90F, which feels cool against your 98.6F hand, while furnaces push 120F-plus. A heat pump in defrost also blows cool air for 5-15 minutes; that's normal. If the air stays cold for hours or the outdoor unit ices over, call us.
What does it mean when my thermostat says AUX heat?
AUX during a defrost cycle or a deep cold snap is normal: the backup strips help the heat pump. AUX on all the time means the heat pump can't keep up, from airflow, refrigerant, or wear, and it deserves a look. Emergency heat is the manual version: it shuts off the outdoor unit and runs backup only, pricier, meant for ice storms and failures.
My furnace won't turn on. What should I check?
The power switch by the furnace, the breaker, thermostat batteries, a clogged filter, and the gas supply if it's a gas furnace. If those check out, call (615) 850-8750; dispatch runs 24/7.
My furnace bangs when it starts and smells the first week of fall. Should I worry?
A light burning smell at the first fall startup is usually dust on the heat exchanger and fades in minutes. Banging can be delayed ignition from dirty burners and is worth a visit. A persistent burning or electrical smell is a call-now problem.
Related services
Related Services
AC Maintenance & Tune-Up
Fall maintenance covers ignition, flame sensors, and heat-pump defrost before the cold arrives.
Emergency AC Repair
No heat during an ice storm counts as an emergency. Dispatch is open around the clock.
Ductless Mini-Split AC Repair
Mini-split heat pumps handle many Middle TN winters with room-by-room control.Ready when you are
Don't Wait for the Next Ice Storm
Fall is the time to check ignition, defrost, and AUX heat. Call (615) 850-8750 and head into winter knowing the system is ready.
Talk with the local team
Request Heating / Furnace Repair & Installation
Reach out to us for any questions or to schedule an appointment. We respond quickly and are available to assist you.