Service Areas

Every summer, one thing you can rely on here in north Texas is the HEAT. During the months of June through October, you come to rely on coming in to a cool and comfortable home. Most of the time you never have to think about of the air conditioning is going to be on…..except when it doesn’t! Imagine coming home one evening, having been out at work all day and your home is…well…warm. The AC doesn’t kick on, or the unit outside is making odd noises and warm air is coming out of your vents. You’re in for an uncomfortable night.


Most people get their car serviced every few months or every few thousand miles, so what about the HVAC system in your house? Keeping your system properly maintained is key to avoiding costly unexpected repairs.


All homes in Texas can, like your cars, benefit from a regular service and tune up. Here at Code 3 Air Conditioning and heat, we recommend having your system checked twice a year:

  • Just before cold weather season to make sure your central heating system is operating efficiently and safely.
  • As soon as we start to have 80 degree days


If you rely on your HVAC units to keep you cool during the hot summer months and warm during the cold dark days of winter, a little bit of planning and a visit from the heating and AC experts at Code 3 will keep you comfortable when you need it most.


For your convenience, we provide HVAC repairs, maintenance and installation to all of Collin county TX. Since we choose not to service homes outside of our service area, this means we are close to your home whenever you need us.
If you live in, or your business is located in one of these cities, then we can come to you!