AC Maintenance in Annapolis, MD
Air conditioners here run from June through September, so May is the time for a tune-up. Tell us about your system, and a licensed contractor who covers Anne Arundel County will get in touch.
Tell us about the job
It takes about a minute.
Four months of real heat, every year
Your air conditioner in Annapolis works from June through September, with summer afternoons averaging 86°F. That is the stretch it has to earn its keep.
A tune-up during that window checks the refrigerant charge and cleans the condenser coil, the two things that let the system pull heat out of the house instead of straining to do it. Anne Arundel County has also logged 248 damaging wind events and 22 hail storms over the past ten years, so a look at the outdoor unit and its electrical connections is worth the time too.
- 4 months
- June through September, your air conditioner is on duty
- 86°F
- the average summer afternoon it cools against
- 22 hail events
- in ten years, and hail bends the fins on outdoor coils
- 248 wind events
- in ten years, and wind drives debris into outdoor units
NOAA nClimDiv, 1991–2020 normals
Book your AC tune-up in May, before homes here start needing cooling in June.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
A tune-up checks the refrigerant charge, cleans the coils, tests the capacitor and tightens the electrical connections.
Maryland requires HVAC contractors to hold a state license.
Maryland's Board of Heating, Ventilation, Air Conditioning, and Refrigeration Contractors is the body that tests contractors and keeps that record. The license is issued to the contractor, not to each job, so what the state checked is the business you hire, not the specific work order for your air conditioner.
For a maintenance visit, that state license is what stands behind whoever comes to your house. If the work includes opening the refrigerant side of the system, the technician also needs EPA Section 608 certification, which is a federal requirement in every state and separate from Maryland's license.
Sources: Maryland General Assembly · Maryland Department of Labor
- What does AC maintenance include?
- A technician checks refrigerant charge, cleans the condenser coil, and tests the capacitor and contactor in the outdoor unit. Inside, they check the evaporator coil, the blower, and the condensate drain, since a clogged drain is one of the more common reasons a system stops cooling in summer. They also check the thermostat and confirm the system cycles on and off the way it should. Anyone opening the refrigerant side of your system has to hold EPA 608 certification, so this isn't a job for cleaning supplies and a garden hose.
- How often does an air conditioner need maintenance?
- Once a year, before summer starts. Homes here only run the AC from June through September, so getting it checked in spring means it's ready when the heat hits and afternoons climb toward the summer average of 86°F. Skipping a year doesn't always cause a breakdown, but a system that goes into summer with a dirty coil or a weak capacitor is more likely to fail on the day you need it most.
- Is AC maintenance worth it?
- Yes, mainly because it catches the small failures before they become no-cooling emergencies. A capacitor going bad or a drain line clogging are both things a technician can spot on a routine visit, before either one leaves you without cooling during a stretch of 86 degree afternoons. This area also sees its share of summer storms, with 248 damaging wind events recorded here over the past ten years, and a yearly check gives a contractor a chance to look at the outdoor unit for any damage those storms may have caused.