HVAC Repair in Dayton, OH
Homes here need heat from October through May and cooling from June through September. If your system quits, tell us what it's doing and a licensed contractor who covers Montgomery County will get in touch.
Tell us about the job
It takes about a minute.
Montgomery County runs your system almost year round
Furnaces here work October through May, eight months of the year, with winter nights averaging 24°F. That's a lot of cycles on the igniter and the burner, and each start is a small strain on both. When the igniter finally wears out, the furnace won't light at all.
Summer flips the load the other way. Afternoons averaging 84°F push the compressor and the condenser fan hard for four straight months. Most homes here heat with gas, so when the furnace side fails, it usually shows up as no heat rather than a partial fix. Wind is the other thing to plan around. Montgomery County has seen 188 damaging wind events over the past ten years, and storms like that knock out power more than people expect. Statewide, 18% of Ohio households lost power for 24 hours or more in 2024. When the power drops, so does your heat or your air, and the system needs to come back on its own once it's restored.
- 8 months
- October through May, your system heats
- 4 months
- June through September, it cools
- 24°F
- the average winter night it heats against
- 84°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $170 a year off heating and cooling for a typical Montgomery County home.
Estimates for a typical Montgomery County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Ohio fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
In Ohio, HVAC licensing for homes is left to the counties.
Ohio leaves HVAC licensing to the counties, so whether this contractor is licensed depends on Montgomery County's own rule, not a state program. There's no state test behind a contractor's name here and no state record to check. Ohio's definition of a home contractor does set a floor on liability insurance, at least $250,000, but that's a condition on the definition, not a license the state issues.
For a repair on your heating and cooling system, that insurance floor is the one piece of state-level protection that applies no matter where in Ohio the house sits. Everything beyond that, whether this contractor is tested, registered or checked at all, comes from Montgomery County's own rule.
Source: Ohio Legislative Service Commission
- Why is my heat not working?
- Start with the thermostat. If the screen is blank, check the batteries or the breaker before you assume the furnace itself has failed. If the thermostat is fine, check the filter next. A clogged filter can choke off airflow enough that the furnace shuts itself down as a safety measure. If your furnace has a pilot light, see if it's lit. If it uses an igniter instead, listen for the furnace trying to start and failing, that usually means the igniter or the flame sensor needs attention. Winter nights here drop to around 24°F, so a furnace that won't run is worth getting looked at quickly.
- Why is my system running but not cooling the house?
- Check the filter first. A dirty filter blocks airflow across the indoor coil, and when that happens the coil can ice up and stop cooling the air even though the system is running. Next check the outdoor unit. If the outdoor fan isn't spinning or the unit is covered in leaves and debris, it can't release the heat it's pulling out of your house. Also check that the thermostat is set to cool and not just set to run the fan. If none of that explains it, the system may be low on refrigerant, and that needs a contractor to find and fix the leak, not just refill it.
- What can I check before calling for HVAC repair?
- Check the filter and replace it if it's dirty, since a clogged filter causes both heating and cooling problems. Check the thermostat batteries and its settings, including the mode and the temperature you actually set. Check the breaker panel for a tripped breaker, especially after a storm. Montgomery County has seen its share of damaging wind, and power blips can trip a breaker without you noticing. If your outdoor unit has a nearby power switch or the furnace has a fused disconnect, make sure it's on. If all of that checks out and the system still isn't working right, a contractor will need to diagnose it.