Herndon is where we start the day.

911Air-Care was started in 2023 by two heating and cooling professionals with more than a decade of experience, and Herndon is home. When a system quits here, a live person answers the phone, and the fix comes with a plain explanation of your options.

Herndon gets the full range of what we do: heat pumps in townhouses, gas furnaces in split-levels, closet air handlers in condos, and water heaters that give out right before work.

Our base is in Herndon, so a call from downtown, off Centreville Road or up by the Toll Road is a short drive for us.

The houses in Herndon

A lot of Herndon was built in the 1970s and 80s: rows of townhouses, split-levels and colonials, with older houses on the blocks around downtown. Plenty of those homes are on their second or third system now, and the townhouses often have the air handler in a closet or the attic and the condenser out back on a small pad.

What the weather does to systems here

Northern Virginia summers are long and humid, so AC units here run hard from May into September, and a weak system shows up first as a sticky house rather than a hot one. Winters bring a few hard cold snaps a year, which is when tired heat pumps fall back on emergency heat and furnaces that skipped their tune-up quit.

What we do in Herndon

• Heating and AC repair. No heat, no cooling, strange noises, warm air from the vents. Furnaces, air conditioners and heat pumps of every major brand, 24/7.
• New system installation. A new furnace, air conditioner or heat pump when the old one is past saving, sized for your house and installed clean.
• Water heaters. Tank, tankless and heat pump water heaters, plus expansion tanks, mixing valves and recirculation pumps. Same-day service is common.
• Maintenance plans. Tune-ups before summer and before winter, front-of-the-line service and discounts on repairs. From $15.75 a month per system.

Around Herndon

We work around downtown Herndon and the W&OD Trail, Elden Street, the Dulles Toll Road corridor and Worldgate and Herndon Parkway, and in Reston and Sterling too.