Boiler repair and replacement in Aldie.

More than nine in ten owner homes in Aldie went up after 2000, and the median year is 2013. In a town that young, a hot water boiler is the exception, not the rule. Most of these houses heat with forced air. When we do find a boiler here, it is usually in the older stock, like the historic village along Route 50 or the few pre-2000 homes. Those units have been running for decades, often without a recent look, and they are the ones that need a check before winter hits.

Gas heats about 78 percent of owner homes here, so most boilers burn natural gas. The vent setup tells you the type: a condensing unit pushes exhaust out a wall in white plastic pipe, while a cast iron unit vents up a chimney in metal pipe. In the historic village along Route 50, exterior changes need review. A through-the-wall vent on a visible side may need approval. We check the vent path and the liner before starting, because a blocked or corroded vent is a common reason a boiler shuts down.

That makes a like-for-like swap simpler. If you are moving the unit or changing the size, the permit process takes longer. If the boiler is in a condo or townhouse, check your association rules first. Some communities require approval for any mechanical change, even if the vent stays the same.

A dripping relief valve usually means pressure is near 30 psi, often from a tired expansion tank or a stuck fill valve. If the top of the radiator is cold while the bottom is hot, air is trapped in the loop. A loud rumble from inside the boiler, like a kettle about to boil, is kettling, and it points to scale or sludge in the heat exchanger. These issues show up more often in the older Aldie boilers found in the historic village or pre-2000 homes. A tune-up at $69 verifies the pressure, tests the expansion tank, and checks the circulator motor. If the unit is past fifteen years old, the cost of a major repair can approach the price of a replacement. We provide the diagnostic numbers and the repair quote before any work starts, so you can compare the options against a new $9,900 to $16,500 system. This helps you decide if fixing the old unit makes sense for your specific setup and budget.