Sizing and comfort
Square footage alone does not determine the right capacity. Insulation, windows, ductwork, climate, and how rooms are used also affect the load. An oversized system may cycle too often, while an undersized one may struggle in peak heat. Ask how sizing will be assessed for your home.
Compare the full proposal
Discuss efficiency ratings, indoor and outdoor component compatibility, electrical needs, and the condition of existing ducts. Request a written scope that identifies equipment, installation work, warranty terms, and any permits before deciding. Ask your location what installation services are currently available.