Air Conditioning

Foss Heating & Cooling is your #1 HVAC contractor in Mount Vernon, 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 Foss Heating & Cooling 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.
SEER
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.
At Foss Heating & Cooling, we provide all the services you need to keep your AC running in top-notch shape. Call us at 360-336-1517 for repairs, maintenance, or new-system installation.
Need Air Conditioner Service?
Contact the experts at Foss Heating & Cooling.
Call us at 360-336-1517!
Air Conditioner Maintenance in Anacortes, WA 98221
“Arrival time was well communicated and updated. Brett was very professional and friendly. The results were well documented and explained. No pressure to upgrade or purchase additional services. An excellent example of how a maintenance visit should go.”
– Dennis S.
Air Conditioner Maintenance in Mount Vernon, WA 98273
“Brett called before arriving and came to our home on time. He was personable, professional, and very informative in answering questions that we had. He performed the Spring maintenance of our home system as part of our service agreement. He shared about several issues that we know we have with our system. He replaced the thermostat with a model that will work great for our needs without selling us the most expensive one. The explanations and recommendations made for resolving our long-term heating and cooling needs were excellent and we believe them to be accurate. Brett is an excellent Foss Heating & Cooling representative and we are very pleased with the service we received!”
– Robert A.
Air Conditioner Maintenance in Mount Vernon, WA 98273
“Always courteous, professional service. Five stars PLUS! We highly recommend Foss Heating & Cooling.”
– David V.
Air Conditioner Maintenance in Stanwood, WA 98293
“Have had Foss out several times and they are always prompt, helpful and friendly. They got us back on track again with our heating unit. Thanks again!”
– Justin P.
Air Conditioner Installation in Mount Vernon, WA 98273
“Awesome job! Highly recommend! The team was so professional and were great to work with!”
– Antoinette W.
Foss Heating & Cooling proudly provides HVAC service to Mount Vernon, Anacortes, Burlington, Bow, Camano Island, La Conner, Sedro Woolley, Stanwood, and the surrounding communities. Visit our service area page for more coverage details, call us at 360-336-1517, or request service online today.