Boiler repair and replacement in Lovettsville.

Propane heats more than four in ten of Lovettsville’s 648 owner homes and electricity about as many, with utility gas at about one in twelve. A hot water boiler in the Town is uncommon, and the ones we’d meet usually burn propane from a tank on the lot. Detached houses make up about eight in ten owner homes, and about one in seven homes is rented.

About six in ten owner homes went up since 2000, the typical one in 2007, but about one in five predates 1960, and that older core is where radiators and baseboard are. A cast iron boiler there usually vents up a chimney in metal pipe; a condensing boiler or Navien combi, at $12,782 to $16,500 installed, takes the vent out through a wall instead.

Loudoun County issues the building permit for a boiler swap in Lovettsville, while the Town handles zoning. The Town also runs its own water from four wells, and its rules put the pressure regulator on the customer, so the house’s own regulator is part of what keeps the boiler’s fill valve and relief valve behaving. That regulator sits where the Town’s line enters the house, so it’s a quick check on the same visit.

The Purcellville station averages a January low of 24.5 degrees, and a local station read 5 below zero on January 27, 2026. When the heat quits in that cold the house cools fast, which is the argument for having the expansion tank, the relief valve and the circulator looked at in October. A frozen condensate line can also stop a condensing boiler in that cold, and clearing it is a small job.