Cooling Service

Warm air, weak airflow, or a system that will not start.

AC and mini-split repair, seasonal tune-ups, and coil cleaning for homes across Massachusetts.

Black Diamond Energy technician servicing an outdoor AC condenser

Most summer breakdowns come down to a handful of causes: low charge from a leak, a dirty coil choking airflow, a failed capacitor, or a clogged condensate line. We test for the real one, quote the fix, and get the house cool again.

  • AC and mini-split repair, all brands
  • Refrigerant leak detection and repair
  • Coil and blower cleaning
  • Condensate line clearing
  • Spring tune-ups and performance checks
  • Repair quoted before any work begins

There during heat waves

July is when it matters. Members move to the front of the schedule.

Leaks found, not topped off

Adding refrigerant to a leaking system is a temporary fix. We find the leak.

Humidity handled

If the house feels damp, that is an airflow or sizing issue, and we will tell you which.

Honest recommendations

On an aging system we show you repair versus replace before you decide.

Frequently asked

My AC runs but the house is not cooling. What is wrong?+

Usually low refrigerant from a leak or a dirty coil restricting airflow. Both are common and both are testable on the first visit.

Do mini-splits need maintenance?+

Yes. The indoor heads collect dust and mold in the blower wheel. A deep cleaning every year or two keeps the air clean and the output strong.

When should I schedule a tune-up?+

Spring, before the first hot stretch. That is when we can catch a weak capacitor or a slow leak without an emergency call.

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Ready for a home that heats and cools like it should?

Free in-home estimates across Massachusetts, with same-week installs on most systems.