AC Repair in Sterling, VA
Fast, Honest Air Conditioning Repair When You Need It Most
Fast, Honest Air Conditioning Repair When You Need It Most
When your air conditioner quits on a 95-degree Northern Virginia afternoon, you do not want to wait. R.A. Dobson has kept Sterling-area homes cool since 1975, and our technicians diagnose and fix AC problems fast — often the same day. We show up on time, explain what is wrong in plain language, and give you an honest, upfront price before any work begins.
Whether your system is blowing warm air, making a strange noise, or has stopped altogether, we will get to the bottom of it and get your home comfortable again.
Common AC Problems We Fix
Our certified technicians repair every major make and model, and most issues come down to a handful of common culprits:
Repair or replace? If your system is under 10 years old and well maintained, a repair is almost always the smart call. If it is older, needs frequent fixes, or still uses the phased-out R-22 refrigerant, we will honestly walk you through whether a repair or a new, more efficient system saves you more over time — with zero pressure. If you decide to replace, see our AC installation page.
A few common questions. How fast can you come out? We prioritize no-cooling calls and often offer same-day service. Do you charge for a diagnostic? You get a clear price before any work starts — no surprises. Do you service my brand? Yes — we repair all major brands and are a Carrier Factory Authorized Dealer.
Why Sterling Homeowners Trust R.A. Dobson for AC Repair
Family-Owned Since 1975
three generations serving Sterling and Northern Virginia
Fast, Often Same-Day Service
we prioritize homes with no cooling
Honest, Upfront Pricing
a clear price before we start, never a surprise
Carrier Factory Authorized
factory-trained on the systems we service
All Makes and Models
our technicians fix every major brand
4.8-Star Rated by your Northern Virginia neighbors
Serving Sterling, Ashburn, Leesburg, Herndon, Reston, Chantilly and all of Northern Virginia. Need a new system instead? Visit our AC installation page, or request service now.
Explore Our Other Services
Air Conditioning
AC repair, installation & tune-ups to beat NoVA summers.
Learn more →Heating & Furnaces
Furnace repair and high-efficiency replacements.
Learn more →Heat Pumps
Energy-smart heat pump installation & repair.
Learn more →Plumbing
Drains, leaks, sump pumps & emergency plumbing.
Learn more →Water Heaters
Tank & tankless repair, replacement & install.
Learn more →Indoor Air Quality
Air purifiers, humidifiers & UV for healthier air.
Learn more →Serving All of Northern Virginia
Based in Sterling · fast response across Loudoun & Fairfax Counties.
Frequently Asked Questions
How fast can you get my AC running again?
We prioritize no-cooling calls · especially during heat waves · and often offer same-day service across Northern Virginia. Call (703) 481-3700 and we will give you a real arrival window.
Should I repair or replace my system?
If it is under 10 years old and maintained, repair is usually the smart call. Older systems, frequent breakdowns, or phased-out R-22 refrigerant tip the math toward a properly sized, high-efficiency replacement · we will walk you through both numbers honestly.
Do you service all brands?
Yes · our certified technicians repair every major make and model, and as a Carrier Factory Authorized Dealer we install the industry's most reliable equipment.
How much does it cost?
You get a clear, upfront price before any work begins · never a surprise. Estimates on installations and replacements are free: request your free quote.
Will regular maintenance really help?
Absolutely · seasonal tune-ups protect efficiency, catch small problems early, and keep manufacturer warranties valid. Ask about our Preferred Maintenance Agreements.
Ready to get started?
Fast, honest service from your local, family-owned team · since 1975.