--- title: "Heating Repair in Spring Hill, TN | Root House" url: https://roothousemechanicals.com/service-areas/spring-hill-tn/heating-repair updated: 2026-09-29 business: "Root House Mechanicals" phone: "(615) 426-9344" text: "(615) 426-9344" email: info@roothousemechanicals.com hours: "Monday to Friday, 8 a.m. to 5 p.m." --- # Heating and Furnace Repair in Spring Hill, TN > Heating repair in Spring Hill for heat pumps, gas furnaces and dual-fuel systems. When a cold January night arrives, a weak heat pump or a furnace that won't light shows up fast. Licensed and insured techs do the HVAC work. Call or text (615) 426-9344, Monday to Friday, 8 a.m. to 5 p.m. - Call (615) 426-9344 (Monday to Friday, 8 a.m. to 5 p.m.) - Text (615) 426-9344 - Email: info@roothousemechanicals.com ## Heat pump or gas furnace: which does your Spring Hill home have? Across Tennessee, more homes heat with electricity than with any other fuel, according to U.S. Census Bureau survey data, and in a newer house that usually means a heat pump. Spring Hill also has natural gas service from Atmos Energy, so some homes here have a gas furnace instead, or a heat pump paired with a gas furnace for the coldest days (a dual-fuel system). Knowing which you have tells you where a problem likely lives. Heat pump trouble is often electrical or refrigerant related. Gas furnace trouble is often the igniter, the flame sensor or the venting. The label on the outdoor unit or the furnace nameplate will tell you, or text us a photo. ## Why does a heat pump struggle on the coldest Spring Hill nights? A heat pump gathers heat from the outdoor air, and it gets less efficient as the temperature drops. January lows in Spring Hill average in the upper 20s, and on the coldest nights the system leans on its electric backup heat (heat strips), which costs more to run. Some of that is normal in a cold snap. What isn't normal: an outdoor unit that ices over and stays iced, backup heat running all day in mild weather, or air from the vents that feels cold rather than warm. Those point to a defrost problem, a thermostat setting, low refrigerant or a failed part. ## Gas furnace safety and permits in Spring Hill A gas furnace burns fuel and sends the exhaust outside, so the gas connection and the vent pipe matter as much as the burner. Inside city limits, the City of Spring Hill enforces the 2018 International Fuel Gas and Mechanical codes, and replacing a furnace or a heat pump generally goes through a permit and inspection there. If you smell gas, leave the house and call Atmos Energy or 911 from outside. Any home with a gas furnace should also have working carbon monoxide alarms. ## What heating repair covers - **Diagnosis.** Starting with the thermostat, the breaker, the filter and the gas supply, then the parts inside the furnace or heat pump, to find the part that failed before anything is replaced. - **Gas furnace repair.** Igniters, flame sensors, gas valves, pressure switches, inducer motors, limit switches and control boards. - **Electric furnaces and heat strips.** Heating elements, sequencers, relays and the breakers that feed them. Loose or burned connections are a common cause. - **Heat pump heating problems.** Reversing valves, defrost controls, outdoor fan motors and refrigerant leaks, plus the backup heat that helps on the coldest days. - **Blowers and airflow.** Blower motors and capacitors, and the clogged filters and closed vents that make a furnace overheat and shut itself off. - **Safety checks.** On gas furnaces, the flue and venting, the flame, the safety switches, and a look at the heat exchanger for cracks. More: [Heating and Furnace Repair across Middle Tennessee](https://roothousemechanicals.com/hvac/heating-repair) ## Urgent: No heat, or a gas smell? 1. If you smell gas, leave the house now. Don't flip switches on the way out. Call the gas company or 911 from outside. 2. If a carbon monoxide alarm sounds, get everyone outside and call 911. 3. No heat in a freeze: check that the thermostat is set to heat, check the breaker, and replace a clogged filter. 4. Stay warm safely. Plug space heaters straight into the wall, keep them 3 feet from anything that can burn, and turn them off when you leave the room. Never heat the house with a gas oven or stove. 5. Open the cabinet doors under sinks on outside walls so the pipes stay warmer. 6. Then call us at (615) 426-9344. We work Monday to Friday, 8 a.m. to 5 p.m.. Call (615) 426-9344. ## How we price it - The diagnostic visit: free. - Firm price given before any work starts. - Priced per job. Each job is priced on its own. - Why prices stay down: low overhead, and the work done right the first time with current methods, equipment and quality materials, so customers are not paying for callbacks. ## Heating Repair in Spring Hill: common questions ### Why does my heat pump blow air that feels cool? Heat pump air is warm, not hot. It often comes out around body temperature, so it can feel cool on your hand. If it's truly cold, the system may be in a defrost cycle, which lasts a few minutes. If it stays cold, the cause could be low refrigerant, a stuck reversing valve or failed backup heat. ### My outdoor unit is covered in ice. Is that normal? A light frost that clears every so often is normal; the defrost cycle melts it, sometimes with a puff of steam. A solid block of ice that stays is not. Switch the thermostat to its backup heat setting (often labeled EM HEAT or AUX) and call or text (615) 426-9344. ### Why did my electric bill jump in January? Some jump is normal. On the coldest nights a heat pump relies on its backup heat strips, which use far more electricity. A big bill in mild weather, though, suggests the backup heat is running when it shouldn't, and that's worth a look. ### My gas furnace won't come on. What should I check first? Make sure the thermostat is set to heat and above room temperature, the furnace switch (it looks like a light switch) is on, and the filter isn't clogged. Check that the furnace door is fully closed, since a safety switch keeps it off otherwise. If it still won't run, call or text us. If you smell gas, get out first. ### Can you add a gas furnace to my heat pump? Often, if natural gas is available at your house. Atmos Energy serves Spring Hill, but not every street or home has a gas line. A dual-fuel setup lets the heat pump run in mild weather and the furnace take over when it's cold. We'll look at what your home has and price it for you. ### Is a fall heating check worth it? It's a good idea, especially for a system more than 10 years old. A check before the first cold night catches a weak capacitor, a dirty flame sensor or a clogged filter while it's still an easy fix. ## Related - [Plumbing Repair in Spring Hill](https://roothousemechanicals.com/service-areas/spring-hill-tn/plumbing-repair) - [Water Heaters in Spring Hill](https://roothousemechanicals.com/service-areas/spring-hill-tn/water-heaters) - [AC Repair in Spring Hill](https://roothousemechanicals.com/service-areas/spring-hill-tn/ac-repair) - [Electrical Repair in Spring Hill](https://roothousemechanicals.com/service-areas/spring-hill-tn/electrical-repair) - [Everything we do in Spring Hill, TN](https://roothousemechanicals.com/service-areas/spring-hill-tn)