In Bethesda, the building often tells you as much about the HVAC system as the equipment itself. Older homes around Bradley Boulevard and Old Georgetown Road may still rely on boilers or gas furnaces, while condo buildings near Woodmont Avenue and newer homes toward Burning Tree Road bring a different set of heating and cooling needs.
Nero's Heating & Air works throughout Bethesda with furnaces, boilers, air conditioners, heat pumps, ductless mini-splits and water heaters. From single-family homes to multi-unit buildings, our technicians are used to working with the space, access and equipment already there.
Gas furnaces and cast-iron boilers both turn up here, and they fail in different ways. Furnace and boiler repair, servicing, and replacement all sit with our heating technicians, along with balancing radiators that heat unevenly, and emergency heating calls when a house has gone cold overnight.
Is the air conditioning running all afternoon and still leaving the house warm? Our AC technicians handle that, along with repair, maintenance, and replacement across the outdoor unit and the indoor air handler, and emergency air conditioning repair in the evenings.
One outdoor unit handles heating and cooling on a heat pump. A ductless mini-split brings the same jobs to rooms no duct ever reached, like a finished attic or an addition. Our technicians install, service, and repair both, down to the indoor heads and the refrigerant line.
Water heaters come in two shapes here, a tank in the basement and a tankless unit on the wall, and they are serviced differently. Our technicians repair, service, and replace both, and talk through which one suits the space before anything is ordered.
Humidity is a separate problem from temperature, and the equipment that fixes it is different equipment. Our indoor air quality specialists install and service whole-home humidifiers and dehumidifiers, and they clean ducts where there is an identified reason to, not as a routine extra.
Replacing a furnace, air conditioner, heat pump or boiler in Bethesda requires a mechanical permit from the Montgomery County Department of Permitting Services. Bethesda does not have its own town permitting office, so the county handles the process.
We file the permit, submit the equipment and system information the county requires, and carry the job through final inspection. The permit fee appears on your final invoice.
If you live in a condo or apartment building, there may be one more layer to sort out. The county still issues the permit, but the building or association may have its own rules for equipment placement, access or shared spaces. It is worth confirming those before the system is ordered.
Pepco administers residential HVAC incentives in Bethesda through EmPOWER Maryland. What qualifies depends on the equipment you choose and the current program requirements.
We review the available rebates with you during the estimate so you know what may apply before the system is ordered.
See current Maryland HVAC rebates
We offer financing for HVAC replacement if you would rather spread the cost over time. You can review the monthly payment options alongside the full written estimate before deciding how you want to pay.
See HVAC financing options
Not much. Twenty percent is the biggest share any one decade holds here, so the equipment gets identified on the visit rather than assumed from the age of the street.
It depends what changes. The Montgomery County Historic Preservation Commission reviews exterior alterations in districts like Greenwich Forest, but ordinary maintenance matching what is already there does not need it.
No. Washington Gas is rebuilding its mains under a plan the state Public Service Commission approved, so choosing between a furnace and a heat pump turns on the building, not the fuel.
Yes. WSSC Water supplies this area from its Potomac plant, the harder of its two sources, and harder water scales a tankless heat exchanger faster, so descaling is needed sooner.
Usually the outdoor temperature, sometimes a fault. A heat pump hands off to electric backup below its balance point, but a system calling for it in mild weather is worth testing.
Whether it is the furnace, the air conditioner, or the water heater that has changed, tell us what you have noticed. We will find out which it is and say what the fix involves before anything is agreed.
