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HVAC Services in Northern, Virginia
Fast, reliable heating and air conditioning service for homes and businesses across Northern Virginia — backed by 30+ years of experience, licensed technicians, and 24/7 emergency support.Northern Virginia’s mix of humid summers and cold, snowy winters puts real demand on your HVAC system — and when comfort matters most is exactly when a breakdown is least welcome. AVS Heating & Air Conditioning has kept families and businesses across the region comfortable for more than 30 years. As a locally owned, fully licensed and insured contractor based in Fairfax, we understand the homes, the weather, and the systems in this part of Virginia better than anyone. From historic townhomes in Alexandria and Arlington to newer construction in Ashburn, Chantilly, and Gainesville, our NATE-certified technicians deliver honest diagnostics, upfront pricing, and workmanship that lasts.
We serve the entire Northern Virginia area with same-day and emergency service on air conditioners, furnaces, heat pumps, water heaters, thermostats, and indoor air quality systems. Whether you need a quick repair before a summer heat wave, a high-efficiency system replacement, or a seasonal tune-up to keep everything running smoothly, our team arrives on time, respects your home, and gets the job done right the first time. Flexible financing is available through Wells Fargo, so upgrading your comfort never has to wait. Explore our full range of HVAC services below, or jump straight to your city to see how AVS serves your neighborhood.
Our HVAC Services
Quality workmanship for residential and commercial HVAC systems by trained technicians across Northern Virginia.
Why Choose AVS in Northern Virginia
Homeowners and businesses across the region trust AVS for comfort they can count on, season after season.
30+ Years of Experience
Three decades serving Northern Virginia means we've seen — and fixed — every kind of HVAC issue this climate throws at us.
Licensed, Certified Technicians
Our trained, background-checked, NATE-certified technicians treat your home with respect and get the job done right the first time.
Same-Day & Emergency Service
Locally based in Fairfax, we offer fast same-day appointments and 24/7 emergency response when you need it most.
Upfront, Honest Pricing
You get clear pricing before any work begins — no hidden fees, no pressure, and no surprises on the final bill.
Flexible Financing
Affordable financing through Wells Fargo makes new systems and major repairs easy on your budget.
Satisfaction Guaranteed
We stand behind our workmanship and back our repairs and installations with dependable warranties.
How It Works
Getting comfortable again is simple with AVS — four easy steps from your first call to lasting comfort.
Book Your Service
Call us or request service online. We'll schedule a convenient time that works for you.
Expert Diagnosis
A certified technician inspects your system and explains the issue in plain language.
Upfront Quote
You receive clear pricing and options before any work starts — the choice is always yours.
Quality Repair
We complete the work efficiently, clean up, and make sure your system runs perfectly.
Areas We Serve in Northern Virginia
Local, dependable HVAC service in your city. Select your location to learn more about AVS in your neighborhood.Comfort Now, Pay Over Time
Don't let an unexpected breakdown or an aging system wait. AVS offers flexible financing through Wells Fargo on new installations and major repairs — plus seasonal specials to help you save.
What Northern Virginia Homeowners Say
Real reviews from customers across the region who trust AVS with their comfort.
Northern Virginia HVAC FAQs
Answers to the questions homeowners across Northern Virginia ask us most.
We provide HVAC service throughout Northern Virginia, including Alexandria, Annandale, Arlington, Ashburn, Burke, Centreville, Chantilly, Clifton, Dunn Loring, Falls Church, Franconia, Gainesville, Great Falls, Herndon, Manassas, McLean, Oakton, Reston, Springfield, Sterling, Vienna, Woodbridge, and Fairfax. If your town borders these areas, give us a call — chances are we cover you too.
Yes. Heating and cooling emergencies don’t keep business hours, so neither do we. AVS provides 24/7 emergency HVAC repair across Northern Virginia. Whether your furnace quits during a January cold snap or your AC fails in the middle of a July heat wave, call 703-457-9028 and we’ll get a technician to you as fast as possible.
Repair costs depend on the system, the problem, and the parts required, but we always provide clear, upfront pricing before any work begins — no surprises. Most common repairs are diagnosed quickly and quoted on the spot. We also offer financing through Wells Fargo for larger repairs and system replacements so you can restore comfort without straining your budget.
Because our teams are based locally in Fairfax and dispatched throughout Northern Virginia, we offer same-day service for most calls and priority scheduling for emergencies. When you book, we give you an accurate arrival window and keep you updated so you’re never left waiting all day.
Northern Virginia’s hot, humid summers and cold winters make high-efficiency heat pumps and dual-fuel systems especially popular, though the right choice depends on your home’s size, insulation, and layout. Our technicians perform a proper load calculation rather than guessing, so your new system is correctly sized for year-round comfort and lower energy bills.
We recommend two tune-ups per year — one for your cooling system in spring and one for your heating system in fall. With our four-season climate, seasonal maintenance catches small issues before they become costly breakdowns, keeps your warranty valid, and helps your system run efficiently through both extremes.
Yes. AVS handles residential homes and commercial buildings across Northern Virginia, from single-family houses and townhomes to offices, retail spaces, and light commercial facilities. We service all major brands and system types, including rooftop units and ductless mini-splits.
Absolutely. AVS is fully licensed and insured in Virginia (VA HVAC License 2705039269A) with more than 30 years serving the region. Our technicians are trained and certified, and we stand behind our workmanship on every job.
Ready for Reliable Comfort in Northern Virginia?
Call the most trusted HVAC contractor in the region or request service online today.
VIRGINIA 703-457-9028 MARYLAND 301-686-7129
