Upper Darby, Delaware County, PA
Upper Darby boiler, furnace and air conditioning repair
Rowhome boiler acting up or the AC losing ground? We service boilers, furnaces and central air across Upper Darby, from the blocks along Cobbs Creek to the twins of Drexel Hill.
Updated October 2026
- Housing
- Brick rowhomes, twins and older singles
- Common calls
- Boiler pressure, cold radiators, AC that cannot cool the top floor
- Phone
- Answered 24/7
Short answer
In Upper Darby, PA, our techs from West Deptford, NJ, repair the boilers, furnaces and air conditioning that keep rowhomes and twins livable. Most heating calls here involve hot water or steam boilers feeding radiators, and most cooling calls involve central air squeezed into attics or ductless units added later. The phone is answered 24/7, and we diagnose before replacing anything.
Rowhome boilers and top-floor heat on the Philadelphia line
Upper Darby is built close together: block after block of attached brick rowhomes and twins, with older singles mixed in toward Drexel Hill. Most of those houses were designed around a boiler in the basement and radiators on every floor. Central air came later, if it came at all, so plenty of homes still rely on window units in the bedrooms or a ductless system someone added room by room. Where ducts were added, they usually snake through a shallow attic or a closet chase, which limits the air reaching far rooms.
The township borders West Philadelphia along Cobbs Creek, so we reach it by crossing the Delaware River from West Deptford and heading west. That puts it on the same run as our Southwest Philadelphia calls, and a tech working in Kingsessing or Cobbs Creek is often close by already. Parking on narrow rowhome blocks takes patience, so we bring the parts that common boiler failures need, like circulators, relief valves and tank fittings, to avoid a second trip to the truck.
The calls follow the age of the systems. Boilers here lose pressure when an expansion tank waterlogs, and then the relief valve drips every cycle. Radiators on the top floor stay cool when air collects in them, and old zone valves stick halfway. In summer, the top floor holds heat into the night, and an undersized AC or a dirty coil cannot pull it down. We measure before recommending equipment, because a bigger unit on a small duct run just short-cycles and leaves the air damp.
Most called for here
Upper Darby jobs we take on most
Boiler Repair
Most Upper Darby rowhomes and twins heat with a basement boiler, so pressure, circulator and tank problems top the list.
Radiator & Baseboard Repair
Leaking valves, stuck air vents and cold top-floor radiators are routine fixes in houses built around cast iron.
Ductless Mini-Split Installation
Homes without ducts get real bedroom cooling without opening plaster walls, a common choice on these attached blocks.
AC Repair
Central air tucked into rowhome attics works hard in July, and weak capacitors or iced coils show up first.
Water Heater Replacement
Tight rowhome basements make venting, clearances and the gas connection matter when an old tank is swapped out.
Most often the expansion tank has lost its air charge, or the fill valve is letting in too much water. Both are repairable. Turn the boiler off and call before the drip becomes a real leak.
Yes. Ductless mini-splits and high-velocity small-tube systems both fit houses built for radiators. We look at the attic, the closets and the wall space, then recommend what suits your layout.
Our phone is answered around the clock, nights and weekends included. We help you protect the pipes while you wait and give you a straight answer on when a tech can be there.
Yes, on a hot water system. With the boiler off and cool, open each bleed valve until water appears, then close it. Steam radiators use automatic air vents instead and should not be bled this way.
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