Air Conditioner Repair Loudoun VA – Gas Furnace, Air Conditioning Repair Sterling VA, Fairfax

Air 1 Mechanical serves Fairfax, Loudoun and Arlington VA area, we are HVAC professionals who specialize in heating and air conditioning repairs, Gas Furnace Repair & Services in Sterling VA. You can also contact us if you are in need of Northern Virginia Air Conditioning Repair services or plumbers. You rely on your HVAC system to keep your home cool during the summer and warm during the winter. So when your system  isn’t functioning or it is not as efficiently as it should be, you need a reliable HVAC company that you can trust. Making the right choice for Heating & Cooling your home starts with choosing the right company to install your system. Air 1 Mechanical Heating, Cooling & Plumbing carries the top heating equipment brands and has a solution for every budget, and our knowledgeable service technicians will help you select the perfect unit for your home. For any gas fireplace services need please contact Air 1 Mechanical our team can provide all your gas fireplace needs, also our expert technician can repair and tune up your gas fireplace at reasonable cost and exceptional workmanship.

Like AC and gas Furnace Repair in Sterling VA, our expert technicians are equally proficient in tuning Heating Air Conditioning Repair in Mclean VA, plumbing, and bathroom remodeling. Whether it’s a minor fault in wiring system, damage in the breaker box or battery replacement in the smoke alarm, our repairmen have necessary tools and strategies to fix the issue in no time at an affordable cost.

We also offer bathroom remodeling services and can turn your utilitarian space into luxurious space that is equipped with modern amenities like spa, jacuzzi etc. With our remodeling services, you would get a stylish and alluring bathroom, which provides soothing effect every time. Call the top notch Air Conditioner Repair in Arlington VA and save big bucks!

We amaze our customer!

Our Services

Plumbing Services

Air 1 Mechanical System Inc. is a full service residential plumbing company.

Heating Solutions

We perform service and repair on ALL brands and types of equipment.

Cooling Solutions

Our Top of the Line System for Total Home Air Conditioning.

Indoor Air Quality

Carrier Healthy Air Expert dealers are the specialists you can turn to for your indoor air quality solutions.

Electrical Services

We are the expert electrician in Northern Virginia areas. Our electricians are skilled and professionally trained.

Energy / Operation Cost

How can we live lightly on the Earth and save money at the same time?

Why You Should Choose

Air 1 Mechanical Systems?

Air 1 Mechanical serving 1000’s of valued customers for over 14 years and 100% satisfaction guaranteed. Here are few facts that you should choose us over other Plumbing, Heating, HVAC & Air Conditioning companies.

  • Strait forward & Upfront Flat Rate Pricing, no surprise at the end.
  • 100% Satisfaction guaranteed on all works we do.
  • Our Trucks Fully Stocked with Parts & Materials, 99% of the time!
  • Happy & Satisfied customer, will go along way…!
  • Best Labor Warranty on installed Systems in the industry!
  • Certified, Experienced and Courteous Technicians, who care about your home like our home.!

Our clients feedback are matters !


Air1 Mechanical Systems was very professional and provided great attention to detail while installing my furnace, AC system and Hot Water Heater. The technician was very accommodating and hard working. He had excellent product knowledge. He was very willing to answer my many questions. I would use Air1 again and recommend them to my friends.

Google User Review

After having bad luck with some other vendors , it was great to get competent, friendly service. I needed someone to come out on a holiday, which they did. Technician involved me in his troubleshooting of air conditioning unit, checked with me before taking steps to repair, and gave both short term and long term recommendations. I will use them again.

Google User Review

Air 1 is the third A/C company we have used in two years. Air 1 found a solution to our problem, advised us that we had been given inaccurate information by the previous companies, and gave us a very competitive bid. Air 1 completed the job on time with a clean, courteous, professional staff of installers. We would highly recommend their services.


Blank-Face-Person-IconThe Technician came out in a timely manner and was very professional. He fixed our AC unit, double-checked everything and really knew what he was doing. Thank you so very much for your expertise and your professionalism. We will definitely use u again!! Our service tech was Vinh Dang! Thank you Vinh!

Ashburn – VA

The technician, Mr. Davila, was super-responsive and on-time on a Friday evening to come and inspect our A/C unit. Explained what needed to be done and what could be done and then laid out all the costs up front to help us make a decision. Very courteous and fair! Would hire again and I would recommend to anyone for A/C service!

Ashburn – VA


Air 1 Mechanical Heating, Cooling & Plumbing Service and Repair. Our serving area; Aldie, VA - Arlington County, VA - Alexandria, VA - Annandale, VA - Arlington, VA - Ashburn, VA - Burke, VA - Centreville, VA - Chantilly, VA - Clifton, VA - Dulles, VA - Fairfax County, VA - Fairfax Station, VA - Fairfax, VA - Falls Church, VA - Gainesville, VA - Great Falls, VA - Herndon, VA - Leesburg, VA - Lorton, VA - Loudoun County, VA - McLean, VA - Merrifield, VA - Northern, VA - Oakton, VA - Potomac Falls, VA - Purcellville, VA - Reston, VA - South Riding, VA - Springfield, VA - Sterling, VA - Tyson’s Corner, VA - Vienna, VA - Warrenton, VA - Woodbridge, VA.

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45710 Oakbrook Ct. Unit 140, Sterling, VA 20166
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Average rating:  
 8 reviews
by Cynthia on Blank Business Name
Quick response!

Was pleased to have technicians out the same day I placed the call. Roberto and Jimmy were very knowledgeable and got the job done right.. We have cool air again! Wouldn't hesitate to make the call again!

by Heather on Blank Business Name
Always good work

I've been using Air One for a few years now. Always good quality work. Roberto was out yesterday to do my twice yearly maintenance. He was pleasant and knowledgeable and took care of a couple of minor problems that came up. Appreciate it!

by Angad Buttar on Blank Business Name
Great Company!

The technician, Marc, was very professional and knowledgable regarding my situation. Would definitely recommend, great value!

by Morgan on Blank Business Name
Great company to work

Air 1 crew are legit. Always so helpful and upfront. They are family owned and 100% dedicated to customer service and using Air 1 for past 6 years. I know several HVAC companies but always call them when we have issue with our HVAC at our home.

by Howard Nguyen on Blank Business Name
Ashburn VA

Vinh is extremely wonderful Tech and very professional and knowledgeable, He provided great attention to detail and explain every things to us. We are very happy with the service that we received from Vinh and I definitely use Air-1 again in the future for all of my HVAC need and would recommended to all my friends and families A+++

Great job

These guys are awesome we'll use them again.

Thanks for trusting Air 1 Mechanical team 🙂

by Brittany on Blank Business Name


Technician was awesome! He took the time to explain the problem with my a/c and answered all of my questions. Would recommend his services to those in need.

by Will C on Blank Business Name
Ashburn, VA


The technician, Mr. Davila, was super-responsive and on-time on a Friday evening to come and inspect our A/C unit. Explained what needed to be done and what could be done and then laid out all the costs up front to help us make a decision. Very courteous and fair! Would hire again and I would recommend to anyone for A/C service!