AC Repair You Can Trust

When Your AC Quits In Desert Heat

When the air turns warm near El Paseo, La Quinta Cove, Magnesia Falls, or The River, DMD Mechanical responds with prompt AC repair and clear communication. Our family-run team serves Palm Desert, La Quinta, Rancho Mirage, Indian Wells, and Palm Springs, getting homes comfortable again with straightforward diagnostics and a plan you can approve before any work begins.

What To Check Before We Arrive

Simple steps that can save time
  • Make sure the thermostat is set to cool and the setpoint is lower than the room temperature.
  • Replace a clogged filter and confirm supply/return vents are open.
  • Check the breaker panel for a tripped AC breaker and reset once.



If the system still won’t cool, book a visit and we’ll take it from there.

Our Repair Process in Coachella Valley

Clear diagnosis, upfront pricing, the right fix
  1. Inspect and test: thermostat, airflow, coils, drains, fan motors, electrical, and refrigerant pressures.
  2. Explain and price: what failed, why it failed, and your repair cost before work begins.
  3. Repair and verify: complete the fix, confirm charge and temperature split, and test under load.
  4. Prevent the next issue: show simple coil and filter care, and recommend tune-ups or duct adjustments if airflow is part of the problem.

Common AC Problems We Fix:

Rattling Ducts to Weak Airflow

If you notice warm air, short cycling, rattling or whistling noises, puddles by the air handler, breaker trips, or rooms that never reach setpoint, DMD Mechanical will track down the cause and explain next steps. When an aging unit isn’t worth another repair, we’ll outline options for AC replacement and help you weigh comfort, reliability, and energy use. If you’re deciding on equipment now, we can also walk you through AC installation choices that fit your home and budget.

Improve Air And Comfort Together

Better cooling with cleaner air

Dust and seasonal smoke can make cooling feel less effective. During a repair visit, many homeowners choose an indoor air quality upgrade—like a 4-inch filter cabinet or in-duct purification—to reduce particulates and odors while protecting system performance.

Where We Work

Local service near you

We repair AC systems throughout Palm Desert, La Quinta, Rancho Mirage, Indian Wells, and Palm Springs. Whether you’re along Highway 111, tucked into La Quinta Cove, or near Magnesia Falls, we’ll keep you updated from dispatch to follow-up.

A man with a backpack is standing next to a lake in the woods.

Help Desk for Desert Homes

  • Why is my AC rattling or whistling?

    Loose panels, fan issues, duct leaks, or a restricted filter can create rattling or whistling sounds. Turn the system off and schedule diagnostics to prevent damage.

  • My system is blowing warm air—what causes it?

    Low refrigerant, dirty coils, failed capacitors, or a stuck reversing valve are common culprits. We’ll test the system and explain the fix.

  • My house has uneven rooms—can you balance airflow?

    Yes. We evaluate duct size, returns, and static pressure, then recommend adjustments to improve room-by-room comfort.

  • Do you service older systems?

    Yes. We’ll assess condition and availability of parts, then help you choose between repair and replacement with clear pricing.

  • Do you offer same-day service?

    We prioritize no-cool calls during heat waves and do our best to provide a same-day window when possible.