Overhead view of a gray residential air conditioning condenser unit mounted on a concrete pad beside a house with asphalt shingle roofing.

AC Maintenance in Hattiesburg, MS

Air conditioners here run from May through October, so April is the time for a tune-up. Tell us about your system, and a licensed contractor who covers Forrest County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
Aerial view of a gray outdoor air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding.

Six months of Hattiesburg heat wears on your AC

Your air conditioner runs from May through October here, with summer afternoons averaging 91°F. That is six straight months where the compressor and the fan motor don't get a break. Parts that run that long wear down faster.

Forrest County has also logged 115 damaging wind events and 22 hail events over the past ten years, with one hailstone recorded at 1.75 inches. Wind drives debris into the outdoor unit's coil and fins, and hail can bend them. A tune-up checks the coil for that kind of damage and confirms the unit is still pulling air through it the way it should, before the next hot month puts real strain on it.

6 months
May through October, your air conditioner is on duty
91°F
the average summer afternoon it cools against
22 hail events
in ten years, and hail bends the fins on outdoor coils
115 wind events
in ten years, and wind drives debris into outdoor units
Isometric line illustration of a cutaway house showing interior rooms with ductwork, an indoor air handler, and an outdoor condenser unit connected by lines, on a white background.
Your air conditioner works hardest from June through September.

NOAA nClimDiv, 1991–2020 normals

An overhead view of a residential air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding.

Book your AC tune-up in April, before homes here start needing cooling in May.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

A tune-up checks the refrigerant charge, cleans the coils, tests the capacitor and tightens the electrical connections.

Mississippi requires HVAC contractors to hold a state license.

The license is issued to the contractor, not to any single job, so it is the company's standing on record with the state that you are relying on, built up over every job that came before yours, not something renewed just for your visit.

For a maintenance visit on your air conditioner, that license is what stands behind the work. If the technician opens the refrigerant side of the system to check the charge, they also need EPA Section 608 certification, which is separate from the state license and required for that work in every state.

Source: Mississippi State Board of Contractors

What does AC maintenance include?
A contractor checks refrigerant levels, cleans the condenser coil, and tests the capacitor and contactor in the outdoor unit. Indoors, they inspect the evaporator coil, check the blower motor, and look at the condensate drain to make sure it isn't clogged. They also check the thermostat and look over the electrical connections, since loose wiring causes a lot of no-cool calls. Anyone opening the refrigerant lines to check charge has to hold EPA Section 608 certification, so that part of the job only happens if the contractor holds it.
How often does an air conditioner need maintenance?
Once a year, ideally before the weather turns warm. Homes here run the AC from May through October, six months of the year, so a spring check gives a contractor time to catch a weak capacitor or a low refrigerant charge before summer afternoons hit 91°F and the system is working hardest. Waiting until it's already hot means a small problem has more chance to turn into a breakdown.
Is AC maintenance worth it?
Yes, mainly because it catches small problems while they're still small. A weak capacitor or a dirty coil doesn't stop a system right away, it just makes it work harder, and that's the kind of thing a contractor spots during a check that a homeowner won't notice until the unit quits. With six months of cooling season here and summer highs averaging 91°F, the system doesn't get much of a break, so a once-a-year check matters more than it would somewhere with a shorter cooling season.