Should You Repair or Replace that HVAC Unit?

As the years go by, residential HVAC systems creep closer and closer to the end of their useful operating life. That's when the HVAC consultant is relied upon to present the homeowner with advice on whether to continue repairing the system, or if a replacement is in order. Read what some of the industry's top contractors and a leading consultant -- Drew Cameron -- have to say about repair v. replace. - ed.