What HVAC services do you provide in Bethesda, MD?

We provide HVAC repair, installation, maintenance, air conditioning services, furnace services, heat pump services, thermostat installation, indoor air quality solutions, and sump pump services for residential and commercial properties throughout Bethesda, MD.

Do you offer emergency HVAC services?

Yes. AVS Heating & Air Conditioning provides 24/7 emergency HVAC services throughout Bethesda, MD, for heating and cooling emergencies.

Do you service both residential and commercial HVAC systems?

Yes. We provide complete HVAC services for homes, offices, retail stores, healthcare facilities, apartment buildings, restaurants, and other commercial properties.

Do you repair all HVAC brands?

Yes. Our technicians repair and service most major HVAC manufacturers and heating and cooling systems.

How often should HVAC systems be serviced?

Most HVAC systems should receive professional maintenance twice a year—once before the cooling season and once before the heating season—to improve efficiency, reduce breakdowns, and extend equipment lifespan.

Do you install energy-efficient HVAC systems?

Yes. We install modern, energy-efficient heating and cooling systems designed to improve indoor comfort while reducing energy consumption and utility costs.

Do you install and repair heat pumps?

Yes. We provide complete heat pump installation, repair, replacement, and maintenance services for residential and commercial properties.

Do you provide sump pump services?

Yes. We provide sump pump repair, installation, replacement, and battery backup system services to help protect your property from water damage.

Why should I choose a local HVAC contractor in Bethesda?

A local HVAC contractor understands Bethesda's climate, responds quickly during emergencies, and provides personalized service backed by local experience and knowledge of the area's heating and cooling needs.

Northern Virginia

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.

Call VA 703-457-9028 Request Service

30+ Years Experience

24/7 Emergency Service

Cities Served in NoVA

100% Licensed & Insured

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.

HVAC technician servicing an outdoor AC unit

Full Service HVAC

Our HVAC Services

Quality workmanship for residential and commercial HVAC systems by trained technicians across Northern Virginia.

AC Repair

Fast diagnostics and reliable repair for all air conditioning models.

AC Replacement and Installation

Frequent breakdowns, hot upstairs rooms or an AC that cannot keep up can make replacement feel urgent.

AC Maintenance & Tune-up

Air conditioners play a significant role during the summer season to beat the heat.

Furnace Repair

When your furnace will not start, blows cold air or shuts down before your home warms up

Furnace Installation

A furnace replacement is an opportunity to address the problems you have been living with: cold rooms

Furnace Replacement

Planning to buy a new furnace because your existing one lacks important features

Furnace Maintenance

If you use a furnace to heat your home, it is important to ensure regular furnace maintenance

Furnace Tune-Up

Get your furnace checked and cleaned before the first cold night. An AVS technician inspects the safety parts

Heat Pump Repair

AVS Heating & Air Conditioning provides heat pump repair in Northern Virginia and Maryland.

Heat Pump Installation

One heating and cooling decision. A plan that accounts for your whole home.

Heat Pump Replacement

Choosing between heat pump repair and replacement can be complicated.

Heat Pump Maintenance

Regular heat pump maintenance is one of the least complicated ways to ensure that your heat pump uses minimal energy

Water Heater Repair

Restoring hot water supply quickly with expert diagnostics.

Water Heater Installation

Tankless and traditional water heater replacements.

Water Heater Replacement

Get your water heater inspected by one of our technicians at AVS Heating and Air Conditioning

Water Heater Maintenance

Regular maintenance of your water heater is important for several reasons

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.

Step-by-Step

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.

Service Areas

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.

Apply for Financing

Testimonials

What Northern Virginia Homeowners Say

Real reviews from customers across the region who trust AVS with their comfort.

    
 
 
       Posted on Google  
   
   Vijay Oberoi 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very nice customer service and great service
  
 
      Posted on Google  
   
   Dan Birns 
 
 
 
 Trustindex verifies that the original source of the review is Google. A few weeks ago, I woke up to find my air conditioner blowing warm air. I suspected the issue was a failed capacitor in the outdoor unit, but I wanted a professional to confirm the diagnosis before replacing anything.

I'd had concerns about the pricing of the large HVAC/plumbing company I'd used in the past, so I decided to try AVS instead, since they appeared to be a smaller, family-owned business.
The technician, Bob, was excellent. He quickly confirmed that the capacitor had failed and replaced it . He was professional, knowledgeable, and efficient.

I'm giving four stars instead of five because of the pricing. Bob had to call the office to get the price for the part, and after (I assume) looking up my ZIP code, they quoted $429 for the service. Considering the replacement capacitor itself costs around $30 and the repair took about 15 minutes, the total felt excessive.

Overall, Bob earned five stars, but the pricing left a sour taste. Ironically, I suspect I wouldn't have paid any more with the larger company I was trying to avoid. Not sure I'll be back.
  
 
      Posted on Google  
   
   Sherri Bohinc 
 
 
 
 Trustindex verifies that the original source of the review is Google. Sean was fantastic. He arrived promptly, communicated clearly, and was incredibly thorough throughout the entire visit. His knowledge and expertise were obvious, and he took the time to explain everything in a way that was easy to understand. He was kind, respectful, neat, and very professional. I also appreciated the great advice he gave for future maintenance and work — it shows he genuinely cares about long‑term solutions, not just quick fixes. Sean was extremely responsive and made the whole experience smooth and stress‑free. AVS is lucky to have him. Highly recommend.
  
 
      Posted on Google  
   
   Salim Saifee 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very pleased with A/C services provided by AVS (Anil). Prompt (same day service), professional, and resolved the issue. No hesitation to recommend.
  
 
      Posted on Google  
   
   Jim Wood 
 
 
 
 Trustindex verifies that the original source of the review is Google. Our AC stopped working during the heatwave. They were able to come same day as opposed to several other companies we called. Fast and friendly service and competitive pricing.
  
 
      Posted on Google  
   
   Garret Wong 
 
 
 
 Trustindex verifies that the original source of the review is Google. I greatly appreciate this man's work.
  
 
      Posted on Google  
   
   Saam Parsa 
 
 
 
 Trustindex verifies that the original source of the review is Google. Showed up same day during the worst heat wave in years. Knowledgeable and diagnosed the problem. Anil was a life saver.
  
 
      Posted on Google  
   
   Rich 
 
 
 
 Trustindex verifies that the original source of the review is Google. In the middle of the worst heatwave in years, my air conditioner suddenly stopped working, and it was only 2 years old. I could not find anyone to come out to look at it, including the company that installed it. I called AVS, and not only did they come out at 11:00 pm that very same evening, just a few hours after I called, the efficiently and professionally diagnosed the problem as a failed capacitor, replaced it, and had the air conditioner running again in just 15 minutes. I was very grateful to have found this company and for their prompt service at such a late hour, especially on a holiday weekend. Thank you!
  
 
      Posted on Google  
   
   Kathy V. 
 
 
 
 Trustindex verifies that the original source of the review is Google. ⭐⭐⭐⭐⭐

I had an excellent experience with AVS Heating & Air Conditioning. My AC stopped working, and they came out promptly and had it fixed quickly. The technician was professional, knowledgeable, and took the time to explain the issue and the repair process.

Thanks to their team, my AC is working perfectly again, and my home is cool and comfortable. I highly recommend AVS Heating & Air Conditioning to anyone looking for reliable and trustworthy HVAC service. Thank you for the outstanding job!
  
 
      Posted on Google  
   
   Christine White 
 
 
 
 Trustindex verifies that the original source of the review is Google. AVS provided excellent service. I would call them again for all HVAC issues.

Your Questions

Northern Virginia HVAC FAQs

Answers to the questions homeowners across Northern Virginia ask us most.

Which cities in Northern Virginia does AVS serve?+

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.

Do you offer 24/7 emergency HVAC service in Northern Virginia?+

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.

How much does HVAC repair cost in Northern Virginia?+

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.

How quickly can you get to my home for service?+

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.

What size or type of AC and heating system is best for Northern Virginia's climate?+

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.

How often should I service my HVAC system in Northern Virginia?+

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.

Do you service both residential and commercial properties?+

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.

Is AVS licensed and insured to work in Virginia?+

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