Should I Keep My Windows Open or Shut?

heating and cooling company fairfax county va

It’s a question that comes up every year: should you keep your windows open or closed?

If there’s one thing we know at the Air Treatment Company, it’s staying comfortable. Here’s our expert answer to the age-old question:

When to Keep Your Windows Open

• Mild or breezy weather: If the weather is pleasant, or there is a nice breeze, feel free to open your windows and cool off the inside of your house.

• During the evening or overnight: If you are going to leave your windows open anytime, it’s overnight, when the temperatures are coolest and you don’t have to worry about UV rays fading the fabrics in your home.

• Hot, stuffy air inside: If the air in your home feels hot, humid, or stuffy, opening your windows can instantly improve ventilation.

• You are craving the sunshine or fresh air: After a long winter, sometimes you just want to fill your house with sunshine – and we can’t blame you.

When to Keep Your Windows Closed

• It’s unbearably hot outside: If it’s extremely hot outside, your best bet is keeping your windows closed and hoping it doesn’t get that warm in your home.

• Your home is well-insulated: If your home is well-insulated, keeping your windows closed could save you money on your energy bills.

• Pollen count is high: Pollen can enter your home through open windows, which is why we advise keeping them shut when counts are high if you suffer from allergies.

• Safety Concerns: Open windows could present safety concerns, depending on your situation. You will need to judge which windows, if any, are safe to leave open – especially overnight.

The Golden Rule

If we had to sum everything up into one piece of advice, it would be this: Keep your windows closed when it is hotter outside, and keep them open when it is hotter inside.


The Air Treatment Company offers professional heating, ventilation, and air conditioning services to homeowners across Fairfax County, Virginia. Contact us online to get started with a free estimate, or call (703) 938-0550.


Are Air Leaks Costing You Money?

how to find and seal air leaks

Is your money going out the window? If your home isn’t properly sealed, it could be. In fact, some estimate that air leaks throughout the home could spike energy bills by 20% or more. Read below to learn how to find and fix air leaks in your home…

What are air leaks?

According to the Department of Energy, air leakage occurs when outside air enters your home uncontrollably through cracks and openings. This forces conditioned air to escape the home, and can lead to hot and cold spots, moisture problems, and poor indoor air quality.

Where are air leaks commonly found?

Air leaks are most common where two different building materials meet. Classic examples of this include:

  • Interior and exterior corners
  • Where siding and chimney meet
  • Where foundation and siding meet
  • Door and window frames
  • Baseboards
  • Wall-mounted air conditioners
  • Electrical outlets and switches
  • Vents and fans
  • Where pipes and wires pass through walls
  • Outdoor water faucets

Tips for sealing air leaks.

  • Use caulk to seal leaks around stationary components, such as door and window frames.
  • Use weatherstripping to seal leaks around moving components, such as doors and windows.
  • Install foam gaskets behind outlets and light switches.
  • Look for dirty spots on your walls, ceilings, and carpets – they may be indicative of air leaks.
  • Replace your single-pane windows with energy efficient double-pane low-emissivity windows.
  • Keep the fireplace damper closed when not in use.

The Air Treatment Company offers professional heating and cooling services to homeowners throughout Fairfax County, Virginia. Let us help you save money all year long with an Energy Star-certified HVAC system installation. Contact us online to get started with a free estimate, or call us at (703) 938-0550.

Install a Smart Thermostat Now and Save All Season

smart thermostat

Times are changing, and so are our thermostats. If you are still utilizing the simple, antiquated thermostat that came with your home, it might be time to consider upgrading to a smart model.

Thermostats are generally overlooked, but they are an important component of our heating and cooling systems. The location, settings, and model of your thermostat can significantly impact your comfort and energy efficiency.

Upgrading to a smart thermostat can offer the following benefits:

  • Save money. Smart thermostats can be programmed to use less energy when it isn’t needed, such as when the house is empty. Depending on your consumption habits, switching thermostats could save you up to $150 per year.
  • Monitor energy usage. Some smart thermostats come equipped with an energy monitoring dashboard, which allows homeowners to see a detailed breakdown of their energy usage over the previous month. They can use this data to further identify ways to save more energy and money.
  • Remote access. Change your desired temperature from your bed, office, or halfway around the world. With WiFi connectivity, smart thermostats give you total control from anywhere. This can be especially useful if you own multiple properties, such as a vacation home.
  • Automated learning. Starting from the day you install it, the Nest Learning Thermostat begins taking note of your schedule and temperature preferences. Within a few weeks, it will know what time you wake up, when you leave for work, and what temperature you prefer at different times of the day. Using this information, the thermostat will automatically adjust to match your needs.

Interested in upgrading to a programmable thermostat? Look no further than the HVAC experts at the Air Treatment Company to install your new device. If you live in Fairfax County, Virginia, call us at (703) 938-0550 to learn about our thermostat options or get started with a free estimate.

How to Prepare Your Home HVAC System for Spring

how to prepare your HVAC system for spring

Today marks the official start of spring! Here’s seven steps you can take to make sure your home HVAC system is ready for the heating-to-cooling transition:

1. Change your air filters. It is estimated that 80% of HVAC-related problems could be prevented by simply cleaning or replacing the air filters. Change yours at the start of spring, and once per month afterwards.


2. Seal air leaks around the home. If you have air leaks around your home, you could be paying up to 20% more on your energy bills. Luckily, these leaks can be sealed quickly using caulk or weatherstripping.


3. Install a programmable thermostat. This is the best time of the year to install a programmable thermostat. These devices can help you save money by using less energy when the house is empty.


4. Invest in an air filtration system. Spring allergies are here, and if you don’t have an air purifier, you could suffer from them inside your home. A professionally-installed air filtration system can remove airborne allergens, leaving your home’s air clean and safe.


5. Shut down your furnace. Your home heating system is about to go into hibernation for the next several months. Make sure it’s ready to run when you need it by cleaning the components and making sure there are no visible signs of damage before shutting it down.


6. Tune up your air conditioner. A professional A/C tune up can lower your energy bills, improve cooling capacity, and prevent costly breakdowns all summer long.


7. Protect your power with a standby generator. Spring showers can knock out your power supply at any time, leaving your HVAC system completely useless. Prevent this from happening by equipping your home with an automatic standby generator.

If you live in Fairfax County VA, trust the home heating and cooling experts at the Air Treatment Company to help you prepare your home for the spring season. We offer air conditioning services, thermostat installations, standby generators, and more. Contact us online to get started with a free estimate, or call (703) 938-0550.

Debunking Common Energy Saving Myths

debunking common energy saving myths

You can’t believe everything you hear, especially on the internet. While the world wide web is full of energy saving advice, many of the common tips are simply not true. The heating and cooling experts from the Air Treatment Company are here to debunk some of the more popular energy myths we have come across:


Myth: If a device is turned off, it is not using energy.

Fact: Electronics continue to draw power from the outlet when they are turned off. This is known as “phantom energy”, and can make up a significant portion of your electricity bill. Always unplug your devices when they are not in use to avoid this hidden energy consumption.


Myth: Turning your thermostat higher will heat your home quicker.

Fact: It will take equally as long for your furnace to heat your home. Ideally, you never want to leave your furnace off long enough for your home to get cold in the first place. Regardless, your heating system will produce heat at the same rate, no matter what the thermostat is set to. Cranking it up will use more energy, but take just as long to heat your home.


Myth: Closing air vents in unoccupied rooms saves energy.

Fact: Your HVAC system uses the same amount of energy, regardless of which vents are open. Your furnace or central air conditioner will still produce the same amount of air, it will just be redirected to other rooms or lost through leaks in your ductwork.


Myth: Electric space heaters are an efficient form of supplemental heating.

Fact: While space heaters are an effective way to heat a room in your home, they are not efficient. Electricity can cost up to ten times more than natural gas, meaning that running just two electric space heaters can cost more than heating your entire home with a gas-powered system.


Myth: Buying an Energy Star heating or cooling system automatically results in energy reduction.

Fact: Your HVAC system must be properly installed in order to reap the benefits. Your new HVAC system is only as good as the professionals who install it. Even the most energy-efficient system in the world won’t result in savings if it is not properly installed in your home.


Air Treatment Company provides professional heating and cooling repairs and installations to Fairfax County, Virginia. Visit our website to learn how we can help you save energy year-round, or give us a call at (703) 938-0550.

How Does Indoor Air Pollution Affect Heart Health?

February is National Heart Month, a great time for you to take control of your heart’s health. The first step? Improving your home’s indoor air quality. While we know contaminated air can damage your lungs, an increasing amount of evidence indicates that it can also negatively affect your cardiovascular system. The average person breathes 20,000 times a day, so make sure you are breathing in the best air possible.

Air Treatment Company - How Does Indoor Air Pollution Affect Heart Health

What is Indoor Air Pollution?

Pollution isn’t just caused by car exhaust and factory smoke. In fact, many household materials can contribute to your home’s poor air quality. Below are the most common pollutants:

  • Mold and pollen
  • Tobacco and cigarette smoke
  • Cleaning products and pesticides
  • Radon and carbon monoxide
  • Building materials, like asbestos, formaldehyde and lead

Effects on the Heart

Short-term exposure can increase your risk of a sudden heart attack, stroke, or heart failure. While long-term exposure to indoor pollutants can cause carotid arteries, high cholesterol, high blood pressure, and diabetes.

How Can You Improve Your Indoor Air Pollution?

  • Control ventilation – One of the most effective ways to improve indoor air quality is to eliminate emissions through proper ventilation. The big problem areas in your home? Bathrooms, basements, and attics.
  • Change filters regularly – Central HVAC systems have filters to trap dust and other pollutants in the air. Make sure to change or clean the filters regularly.
  • Adjust humidity – High humidity keeps your air moist and increases the likelihood of mold and other air pollutants. Adjust the humidity in your home to control the quality of air you breathe.

If you live in Fairfax County, Virginia, trust the experts at Air Treatment Company to help you clean the air in your home. We offer a wide range of products designed to improve air quality, including filtration systems, whole-home dehumidifiers, and more. Contact us online to get started, or call (703) 938-0550.

Energy Saving Tips for Your Holiday Party

furnace repair vienna | furnace repair fairfax

The holiday season is upon us. With all of the money you’ve spent on gifts this year, it’s safe to say you want to keep your energy bill to a minimum. If you are hosting your family get-together this year, don’t sweat it. There are still plenty of opportunities for you to save:

Holiday Decorations


  • Utilize LED light bulbs. Decorations that use LED light bulbs can use up to 80% less energy. Even better, look for decorations that don’t require any energy at all – such as wreaths, nutcrackers, garland, or candles.
  • Prevent “phantom” energy. Many devices still draw electricity even when they are turned off. Unplug your electronics when they are not in use to prevent this “phantom” energy from racking up your utility bill.
  • Limit secondary lighting. If your Christmas tree shines bright, turn off the other lights in the room. Not only will this save energy, it will make your tree look even more impressive.



In the Kitchen


  • Minimize oven use. Cook smaller dishes in smaller appliances such as your microwave, toaster oven, or crock pot. If you must use your oven, cook multiple dishes at once.
  • Put a lid on it. Covering pots and pans on your stove top helps them retain heat. You should also match the size of your pot to the size of the burner it is cooking on.
  • Keep your refrigerator door closed. Every time you open the refrigerator door, up to 40% of the cold air can escape. Storing your drinks in a cooler is a great way to prevent guests from repeatedly opening the refrigerator door.



Your HVAC System


  • Turn down the thermostat on the day of the party. Between the extra cooking and body heat from your guests, you can lower the thermostat a few degrees and not even notice.
  • Change your air filters. Dirty air filters can increase the workload on your home heating system. For best results, clean or replace them once per month.
  • Schedule a professional tune-up. An annual tune-up can help reduce HVAC energy consumption and prevent future breakdowns.



If you live in Fairfax County VA, trust the HVAC experts at Air Treatment Company for all of your home heating needs. For furnace installations, repairs, tune-ups, and more, call us at (703) 938-0550.

How To Keep Your House Warm

There are small steps you can take to make your house even warmer this season. Best of all, these solutions are easy to complete and inexpensive. Keep reading to find out what they are.


  1. Put heavy curtains on your windows to prevent heat loss.
  2. Seal all air leaks around your windows.
  3. Have pelmets installed on the top of your windows.
  4. Keep the blinds open on a sunny day to let the natural light into your home.

Heating System

  1. Have a programmable thermostat installed so you can have more control of the temperature in your home.
  2. Do not heat rooms that are rarely used.
  3. Have your heater maintained by am HVAC professional. Doing so will ensure that your heating system is operating at peak efficiency.

Your house will definitely be cold if your heating system is not working. If that happens to you, just turn to Air Treatment Company. Our NATE certified technicians are great at troubleshooting. They are equipped to respond to any home heating problem, regardless of who installed your system. Call 703-938-0550 to schedule service.

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​Signs You Need New Duct Work

When it comes to your duct work, the expression “out of sight, out of mind” seems to apply. Since most ducts are hidden away in the walls, it is tough to know when they need to be replaced. Below are some signs that indicate that you need to get new ducts in a row.

  1. Duct work has a lifespan of 10-15 years. If your ducts have exceeded that time limit, you are probably due for new duct work.
  2. Check out the duct work that is exposed. You should have your ducts replaced if you notice tears, rips or damage.
  3. Are certain areas of your home warmer or colder than others? Inadequate air flow from eroding duct work could be the culprit here.

Having your air ducts replaced will allow your heating system to operate at peak efficiency this season. Is it time to have your home’s duct work replaced? If so, turn to Air Treatment Company. Our air duct technicians wear shoe covers, put down drop cloths, are trained to perform the work you need and will thoroughly clean up the work area. Call 703-938-0550 to request an appointment.

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Our Residential Heating Services

At Air Treatment Company, our first priority is your comfort. If your heating system is not providing you and your family with a comfortable home, we can change that. We offer a variety of services to meet your heating needs. From repairs to installations, we do it all. Below is a list of the residential heating services we offer.
Heating Repairs: 
  • Forced air gas furnaces
  • Electric furnaces
  • Heat pumps
Heating Maintenance:
  • Forced air gas furnaces
  • Heat pumps
  • Electric furnaces
  • Radiant heating systems
Heating Replacements and Installations:
  • Natural gas heating systems
  • Forced air furnaces
  • Geothermal heat pumps
  • Humidification systems
  • Authorized Carrier heating systems
When your heating system is not working, turn to Air Treatment Company. Our NATE certified technicians are great at troubleshooting. They are equipped to respond to any home heating problem, regardless of who installed your system. Call703-938-0550 to schedule service.