Many homeowners neglect their HVAC systems and that can be a costly mistake. Replacing your air filter should be a top priority every month depending on what type of filter and system you have. Although some filter manufacturers print on the filters that they are a 2-3 month filter is simply not true. If your home is pet friendly you will need to change your filter more frequently and it could be twice a month! Especially if the animal sheds a lot.
Having a low cost maintenance contract can help save you hundreds of dollars every year by simply having the system cleaned and checked. A clean running machine saves energy and money and you will be more comfortable. Manufacturers recommend having systems serviced 2 times per year, spring and fall. You can also save on repairs costs if the system breaks down if you have a service agreement.