Guides for homeowners and business owners

All guides

• How often should you change your furnace or A/C filter?

  Most homes should check the filter every month and replace it about every one to three months.

• Heat pump or furnace: how to choose for your home

  A heat pump moves heat instead of making it, which lets one system both heat and cool a home.

• Six signs your air conditioner needs repair

  Weak airflow, warm air from the vents, strange noises, frequent cycling, unusual smells and rising energy bills are the most common signs an air conditioner needs attention.

• Get your air conditioner ready for summer: a spring checklist

  A few simple steps in spring, plus a yearly professional tune-up, help an air conditioner start the season cleanly and run efficiently.

• Walk-in cooler warning signs every kitchen should know

  A walk-in cooler that is running warm, icing up, cycling constantly or leaking water is telling you something.

• What a good commercial HVAC maintenance visit covers

  A thorough maintenance visit on a rooftop or split commercial system checks airflow, electrical components, refrigerant circuits and controls, and leaves the owner with a written record of what was found.