Air Conditioning

Close up of an outdoor air conditioner.

Ballard Natural Gas is your #1 HVAC contractor in Seattle, WA, and the surrounding communities. We are the leading company for all of your air conditioning needs. If you need repairs, maintenance, or a brand new system installed, the technicians at Ballard Natural Gas are the qualified and professional crew for the job.

We provide the highest quality service for your air conditioner. We also aim to educate and inform our customers. Informed decisions are good decisions. We want you to feel confident we are qualified to perform the service for which you are hiring us.

Air Conditioning Basics

The four main components to your air conditioner are:

Condenser: The condenser is the outside metal unit and where the gas from the compressor is condensed into a liquid. The gas entering the condenser is very hot. The temperature is then lowered, so the gas can convert back to a liquid.

Compressor: The compressor is inside the condenser. It circulates the pressurized refrigerant, to concentrate the heat, and changes the low pressure gas to high pressure.

Evaporator: The evaporator is the part of the system inside the home. In simple language, it absorbs the heat from your home.

Expansion Valve: The expansion valve controls the amount of refrigerant in your system.

All of these pieces are connected by a copper tube that handles refrigerant, creating a closed loop. Heat is collected in the evaporator, sent outside to the condenser. The heat is removed, and the cool air is recirculated back into your home.

AC Facts

An Air Conditioner Doesn’t Create Cool Air.
What happens in the AC process is actually the removal of heat from the air. Your AC uses a chemical called refrigerant to remove heat and transfer it outside. The warm air runs through the lines and coils in your unit and goes from liquid to gas and back again. During this process, the refrigerant removes the heat and transfers it elsewhere so that when the air comes out the other side, it is cool.

Your AC Will Remove Humidity.
Lower humidity helps the overall comfort level in your home by making you feel cooler, even if the temperature is the same.

Your Air Filter Needs To Be Checked And Replaced Every Three To Six Months.
(depending on the manufacturer’s recommendations)
A dirty air filter restricts your air flow, which reduces efficiency, costing you money, and over time can put stress on your unit and could cause a costly repair.

Maintenance, Maintenance, Maintenance.
Your air conditioner needs regular checkups to keep it running in tip-top shape. Having regular annual preventative maintenance will bring your system longer life and fewer breakdowns over all.

The Seasonal Energy Efficiency Ratio (SEER) measures air conditioning and heat pump cooling efficiency, which is calculated by the cooling output for a typical cooling season divided by the total electric energy input during the same time frame. A higher SEER rating means greater energy efficiency.

How Much Money Can a New Air Conditioner Save You?

Our SEER2 (Seasonal Energy Efficiency Ratio 2) energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit’s SEER value and compare it to a newer, more efficient SEER2 unit. You can even customize it to better match your home’s system for a more accurate calculation.

SEER2 Energy Savings Calculator

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This calculator does not guarantee actual costs or savings and is only to be used for educational purposes.

Customize to Your Home

Adjust these settings for a more accurate calculation:




Rate (¢/kWH)


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** Data from U.S. Energy Information Administration
*** Data from 2002 EPA study

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At Ballard Natural Gas, we provide all the services you need to keep your AC running in top-notch shape. Call us at 206-784-8101 for repairs, maintenance, or new-system installation.

Need Air Conditioner Service?

Contact the experts at Ballard Natural Gas.

Call us at 206-784-8101!

“I am so happy we chose Ballard Natural Gas to install air conditioning for us. We went with a combination of a ducted and ductless heat pump system. Ballard was competitive on price and the install and customer service were stellar! The team was a pleasure to work with. They went above and beyond to create a system that worked with our historic home and installed it to maintain our home’s aesthetics. They responded quickly to make minor adjustments to our system after install. My electrician commented on the high quality of the work and said he would be recommended Ballard to others too!”

– Carrie C.

“Thank you to Tyler, Kevin, Alex, DJ, Jordan, Edie, and Neil for the outstanding service you gave us in June. Our new unit works so well. Tyler and Neil told us what to expect on install day and everything went as planned with excellent service from all. What a great crew! The electric furnace and air handler provides an even temperature, great airflow and so much less dust!!! Not to mention, we love the air conditioning!! THANK YOU Ballard Natural Gas and Trinity Electric……for a job well done. We appreciate you and our wonderful system. Cammy and Tim”

– Cammy H.

“Garret stopped by to calibrate and ensure our newly installed air conditioner is running in its best condition. Garret was professional, friendly, and a person I would highly recommend to a friend.”

– Taylor H.

“Garret was an excellent service visitor to our home. He was patient and courteous while going out of his was to explain the situation that caused our air conditioner to not work. He accurately and honestly predicted the future services that would be required to solve our problem. His three visits were pleasant and competent. Thanks for providing his services. It now works!”

– Denis F.

“Garett was our service technician this evening. He came to our house on an emergency call about 9 pm. Our Train AC compressor had stopped working. Garett immediately spotted a blown fuse, replaced both of them, checked the coolant temperature, and buttoned the unit back up in less than 30 minutes. He was polite, friendly and competent, a quality technician and a great representative of Ballard Natural Gas Service.”

– Mark H.

Ballard Natural Gas proudly provides HVAC service to Seattle, Shoreline, Edmonds, and the surrounding communities. Visit our service area page for more coverage details, call us at 206-784-8101, or request service online today.