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Whether it’s the heat of summer or the cold of winter, a comfortable home environment in Reston, VA is crucial! Our mission is to ensure your home stays cozy all year round.

Common HVAC Repairs

A very common HVAC repair we face is a refrigerant leak. This is when low refrigerant levels can cause your system to perform poorly or stop working altogether. Our technicians can locate and repair refrigerant leaks to restore your system back to normal function. Another thing we can repair is a faulty thermostat. This can lead to temperature inconsistencies and discomfort in your home.

Dirty or clogged air filters restrict airflow and strain your HVAC system, leading to reduced efficiency and increased energy bills. Lastly, a broken fan motor can be a common repair too, as it’s a crucial part responsible for circulating air throughout your home. If it fails, your system won’t be able to effectively distribute air throughout your home.

If you’re unsure whether your AC or cooling equipment needs repairs, some signs include:

  • System short-cycles or it won’t turn on.
  • Layers of frost.
  • Odd noises or smells.

Common symptoms of your furnace or heater needing repair include:

  • Short cycling.
  • Patchy heat or no heat at all.
  • Strange sounds or loud noises come from it.

Our HVAC Services

We’ve got you covered, from installation to maintenance and repairs. Here are a few of the services we offer:

Installation and Replacement

Our team specializes in installing and replacing HVAC systems with precision and expertise. Everyone’s home is different, so whether you’re building a new home or upgrading your current system, we’ll work with you to find the perfect solution to meet your needs and budget. We’ll explain all the types of HVAC systems, from air conditioners (AC), to ductless mini-splits, dual-fuel systems and heat pumps.

Routine Maintenance

Regular maintenance is essential for keeping your AC, furnaces, and heat pumps running smoothly and efficiently. Our plans are all designed to prolong the life of your equipment, improve energy efficiency, and prevent costly breakdowns and the need to replace expensive units.


There’s nothing worse than when your AC breaks down on a hot summer day, or you have to spend a night shivering in your Reston, VA home when your furnace isn’t working properly. Our experienced technicians are equipped to handle a wide range of repairs, from minor fixes to major overhauls. We’ll diagnose the issue quickly and provide a reliable repair to get your system up and running again in no time.

Indoor Air Quality Solutions

Poor air quality in Reston, VA can have an impact on your health and comfort. At Garneski Air Conditioning & Heating, we know that indoor air quality is just as important as climate control. We provide a range of solutions, such as new air filters, dehumidifiers, and humidifiers.

HVAC repair reston, va

What Size HVAC Unit Is Right For Your Home?

Choosing the right size HVAC unit for your home is crucial for both optimal performance and energy efficiency. If you choose a unit that is too small, it’ll struggle to keep your home comfortable. Choose a unit too large, and it may cycle on and off frequently, which is not at all energy efficient and can and quickly wear out components.

It can be daunting navigating the world of AC, furnaces, and heat pumps, so you don’t need to do it alone. At Garneski Air Conditioning & Heating, we can help take the guesswork out of choosing the right size HVAC unit for your home. Our experienced technicians will thoroughly assess your home’s size, layout, insulation, and other factors to determine the ideal size for you and your family’s needs. We have expertise in helping you choose a unit that strikes the balance between efficiency, comfort, and affordability, thus ensuring years of reliable performance and lower energy bills.

Call Garneski, Today!

We have more than four decades of experience in the heating and cooling service, maintenance, and replacement business – so you know you can count on us. We’re dedicated to providing the best possible job for you and your family. We also provide HVAC service in Leesburg, VA, and offer our dependable water heater service in Reston, VA.

If you’re looking for HVAC repairs, maintenance, or installation in Reston, VA, give us a call at 703-659-4598 or contact us online today and book your appointment now