Some home systems these days are fairly complex. For example, your air conditioning system involves temperature control, humidity management, fresh air considerations, filtration and air quality issues, and cost of operation.
Relatively few homeowners are mechanical engineers familiar with residential heating, ventilation, and air conditioning (HVAC) systems - and are unable to distinguish between fact and sales people's hype.
WE WORK FOR YOU. OUR JOB IS TO MAKE SURE YOU GET EXCELLENT WORK AT A FAIR PRICE. WE KNOW WHICH CONTRACTORS DELIVER THIS.