Seasonal maintenance
The public site recommends preventive maintenance every six months. Ask the company which visit schedule is appropriate for your equipment.
The company recommends six-month maintenance and monthly filter changes on its public service and FAQ pages; confirm service-plan details with the team.

The company’s pages say it recommends maintenance every six months and lists tune-ups and a 21-point system check. Current plans and pricing should be confirmed directly.
The public site recommends preventive maintenance every six months. Ask the company which visit schedule is appropriate for your equipment.
The FAQ advises changing air filters monthly. Check your equipment documentation and ask a qualified technician about your system.
The public service page lists a 21-point A/C tune-up. Details and current availability are not presumed here.
The existing site mentions Silver and Gold packages but does not present enough current detail here to describe their terms. Ask the company.