Heat pump repair in McLean.

A McLean heat pump call comes from one of two very different buildings. About four in ten owner homes here are condos or apartments, mostly in and around Tysons, and nearly half are detached houses, many of them big. The heat pump in a tower unit is a small closet air handler with strips behind it, the refrigerant lines running to a condenser the building decides where to put. The heat pump in a big house is often the upstairs half of a split: a gas furnace handles the main floors and a heat pump in the attic handles the bedrooms.

That split changes what the symptom means. If the downstairs is toasty and the bedrooms are cold, the gas furnace is fine and the whole repair is on one attic system. We start there and nowhere else, which keeps the visit short. Attic air handlers have their own habit: the condensate pan and drain line sit right over a ceiling, so a clogged line that trips the float switch is a real mess to ignore. A heat pump that went dead on its own, with no clicks, is sometimes just that safety switch doing its job.

About three in ten McLean owner homes, a bigger share than that in the newer parts, went up after 2000. A heat pump that came with one of those houses is at the age when the capacitor, the contactor and the defrost board begin to wear, and those are parts we price on the spot. The older houses are the opposite problem. Plenty of the 1950s and 60s ones have had their heat pump added decades after the house was built, squeezed into whatever space the ductwork allowed, and that squeeze shows up as ice and long run times.

In a Tysons building, the first call is often to the property manager, not to us. The outdoor half may be on a roof, a podium or a shared pad, and some towers share one loop of water between all the units. Tell us the building and the floor, and ask management who holds the roof key and whether a work order is required. That one phone call saves a trip.