911Air-Care is based right here in Herndon — our office is at 1210 Autumn Pl — and Herndon homeowners are the neighbors we serve first and most. When your air conditioner quits on a humid July afternoon or your furnace stops on the coldest night of the year, you do not need a call center three states away. You need a local team that knows the homes on your street and can get to you the same day.

Heating & Cooling Services in Herndon

We provide complete residential and light commercial HVAC services in Herndon: air conditioning repair and replacement, furnace and heat pump services, ductless mini-split installation, preventive maintenance, indoor air quality, and water heater services. Many Herndon homes — from the older houses near downtown to the townhome communities along the Fairfax County Parkway corridor — still run systems installed in the 1990s and 2000s. We will always give you an honest repair-versus-replace assessment, with clear pricing before any work starts.

Why Herndon Homeowners Call 911Air-Care

Rated 4.9 out of 5 from 147 Google reviews · Same-day service across Herndon and the surrounding area · A live person answers our phone 24/7 for emergencies · Licensed and insured Virginia contractor · Free estimates on new installations. Regular office hours: Monday–Saturday, 8:00 AM–7:00 PM.

Book HVAC Service in Herndon

Call (571) 910-9901, (703) 772-8384, or (571) 524-0276, or book online in under a minute. From Franklin Farm and Fox Mill to downtown Herndon and the neighborhoods off Herndon Parkway, 911Air-Care is your trusted comfort partner — close by, and ready when you need us.