Few homeowners realize that neglecting regular air filter changes can cause your furnace to age more quickly than it should. Changing your air filter is one simple, easy task that will make sure your furnace can "breathe" easy throughout the year. Paul's Heating & Air Conditioning provides quality air filters in most sizes and styles, along with offering delivery within our service area for qualifying quantities. Call us today or use our online scheduler to request a delivery!


Frequency of air filter changes can vary from once a month, to once a year, but use the following guidelines as a reference for your home:

  • Always inspect your air filters monthly.
  • If you use 1" air filters, change your air filter every 1-3 months.
  • If you use 5" air filters, change your air filter every 8-12 months.
  • If you use any type of humidifier in your home, you should be changing your filters more often.


Your air filters will not last the same amount of time as your neighbor's air filter, it's important to inspect your air filter monthly to monitor whether or not it's time for a change. If you notice discoloration, folding, whistling, odor, or any sort of residue building up on your filter, change it as soon as possible!



Living in Wisconsin, it's no secret that without a reliable heating or cooling system the seasons will be longer for you than it is for your neighbor! The best way to ensure that your equipment can take a full season of abuse from our midwestern climate is to have a trained professional inspect, maintain and cycle your system. A visit from Paul's Heating & Air Conditioning will keep you informed of any potential issues your furnace or air conditioner may present. When you catch malfunctions before they happen, you and your family will stay comfortable, and free of worry!

Our technicians follow an industry accepted tune up protocol developed over years of maintaining heating & cooling systems. See our Tune Ups page for more details or schedule online today to get started!