As a seasoned HVAC expert, I am frequently asked about the optimal time to replace HVAC systems. And my response is always the same - during the off-season. This means that the best time to upgrade your HVAC system is during the slower months, which typically span from late September to mid-November and early March to mid-May. These are the times when business is slow for HVAC contractors, and manufacturers offer special deals and discounts to help sell more products.
As someone who has been in the HVAC industry for many years, I can confidently say that spring and early fall are the ideal times to upgrade your home or business's air conditioning system.