METRO BOSTON HVAC
(781) 408-2506
Licensed MA #081600137 • Stoughton, MA

Annual HVAC Maintenance Calendar

Keep your system running efficiently year-round. Check off each task as you complete it.

January Winter
Check/replace air filter!
Test thermostat accuracy
Check CO detectors!
Clear vents & registers
February Winter
Check/replace air filter!
Inspect furnace flame color
Listen for unusual noises
Check thermostat batteries
March Spring
Check/replace air filter!
Schedule spring tune-upPro
Inspect ductwork for leaks
Clean around indoor unit
April Spring
Check/replace air filter!
Clean outdoor AC unit!
Clear debris around condenser
Test AC before hot weather
May Spring
Check/replace air filter!
Clean condensate drain line
Check refrigerant lines
Verify even cooling
June Summer
Check/replace air filter!
Check thermostat programming
Inspect window seals
Clean supply registers
July Summer
Check/replace air filter!
Rinse outdoor unit coils
Check condensate drain pan
Monitor energy bills
August Summer
Check/replace air filter!
Check AC for ice buildup
Clean return air grilles
Verify system cycles properly
September Fall
Check/replace air filter!
Schedule fall tune-upPro
Test heating mode
Inspect flue/exhaust vent
October Fall
Check/replace air filter!
Seal air leaks around home
Reverse ceiling fan direction
Cover outdoor AC unit
November Fall
Check/replace air filter!
Test CO & smoke detectors!
Check insulation
Clear furnace area
December Winter
Check/replace air filter!
Replace thermostat batteries
Inspect heat exchanger area
Check pilot light/ignitor

Filter Replacement Schedule

1" Fiberglass:
Replace every 30 days
1" Pleated:
Replace every 60-90 days
2" Pleated:
Replace every 3-4 months
4" Pleated:
Replace every 6-12 months
HEPA Filters:
Replace per manufacturer specs

Check more often if you have pets, allergies, or during heavy use.

Notes