Rockville’s housing spans several generations, from post-war neighborhoods to newer communities built since 2000. That means one home may be on its third furnace, while another is still running the equipment the builder installed. Nero's Heating & Air works with furnaces, air conditioners, heat pumps, ductless mini-splits and water heaters across that range.
You see that mix from Twinbrook and Woodley Gardens to King Farm, Fallsgrove and the condominium communities near Hungerford Drive. We work with the different systems that those homes have picked up over the years.
Furnace work is the bulk of what our heating technicians do in winter, from a burner that will not light to a system that runs and never reaches the setting. Repair, maintenance, and replacement all sit with them, along with boiler and radiator work in the older houses.
Air conditioning repair, maintenance, and replacement cover the season from the first warm week to the last. Our AC technicians handle the condenser outside and the coil and blower indoors, and emergency AC repair covers the evenings when a house has stopped cooling altogether.
A heat pump covers both winter and summer with one outdoor unit, and a ductless mini-split does the same for rooms without ductwork. Installation, repair, and maintenance on both sides are handled by the same technicians, down to the wall heads and the line set that feeds them.
A water heater call usually starts with hot water running out early or rust showing in the tank. Our technicians repair and replace both tank and tankless units, and a leaking tank is the one fault that goes straight to replacement.
A crawl space that will not dry out in late summer, and a house so dry in January that static builds up, are humidity problems rather than temperature ones. That is where our indoor air quality specialists come in, with whole-home humidifiers, dehumidifiers, and duct cleaning.
Within Rockville city limits, HVAC permits are issued by the City of Rockville, not Montgomery County. The city’s Inspection Services issues the mechanical permit when a furnace, air conditioner, heat pump or boiler is installed, replaced or removed.
You do not have to handle that process yourself. Our installation team files the permit, submits the equipment details and required state license information, and carries it through the final inspection. The permit fee is included on your final invoice rather than collected separately during the job.
Some detached homes require an additional document: a house location survey showing where the outdoor unit will be located. Rockville also offers an express route for mechanical permits, so straightforward projects can usually move through the paperwork without it becoming the part that holds up the job.
Which rebate applies here is determined by the equipment, not the address. Potomac Electric Power Company (Pepco) runs the residential electric side of EmPOWER Maryland and Washington Gas runs the high-efficiency gas heating side, so a heat pump and a condensing furnace go down two different routes.
When our team comes out to quote the replacement, the rebate route is part of that conversation, so you know which one you are on before any equipment is ordered.
See current Maryland HVAC rebates
A furnace or an air conditioner rarely fails on a schedule that suits a budget. Financing spreads the replacement cost across monthly payments instead of one payment, and the options come back attached to your written estimate, so the monthly payment and the full replacement price are in front of you before anything is signed.
See ways to pay for a new system
It can. Montgomery County has required radon testing before most home sales since 2016, and where a mitigation fan shares a basement with a vented furnace, our technicians check the draft.
Usually yes, with review. The City of Rockville Historic District Commission handles exterior work in districts like West Montgomery Avenue, and the chief of zoning can approve HVAC components at staff level.
Timing, not coincidence. A third of the housing here dates from 2000 or later, so whole streets hit the same age together. Plenty of those systems are still repairable.
Both are common. Census figures put utility gas at 60 percent of occupied homes and electricity at 37. Washington Gas serves the streets, so the choice is not about supply.
Often. A heat pump reverses briefly to clear frost from the outdoor coil, so ice that melts away is normal and ice that sits through the cycle is a fault.
Whether the system has just stopped, has been getting worse for a while, or is simply old enough that you want an opinion on it, that is enough to book from. Our team will look at it and tell you what the options are.
