Treat your system


Say 'thank you' with a

little TLC...

Your AC unit got you through the summer, so why not reward it with the full treatment from D&H. Our certified service professionals inspect, test and adjust 21 critical components that have high failure risk.


Now is the perfect time for maintenance service — a tune-up scheduled ahead helps you stay comfortable and ensures that your system is ready to go when the temperatures rise again.

We want to ensure your system's longevity, and appointments are filling up fast.



What you get:

21 Critical Components with High Failure Risk
  • Inspect blower

  • Verify refrigerant change

  • Inspect exposed duct work

  • Clean air filters

  • Inspect belts/pulleys

  • Inspect defrost timer

  • Test reversing valve

  • Test auxiliary heat strips

  • Check defrost timer

  • Test compressor

  • Calibrate thermostats

  • Lubricate all moving parts

  • Measure & record temperature differentials

  • Test capacitors

  • Clean condenser drain

  • Test crank case heater

  • Tighten electrical connections

  • Inspect power disconnect

  • Inspect MEG OHM compressor

  • Verify contractor

  • Verify relays

Why Should You MAINTAIN?

Here at D&H we believe maintaining your heating and cooling systems is key to staying comfortable — in your home & with your budget.

Lower Your Energy Bills

Maintenance can help you lower your bills! When your AC is in good shape, it wont have to work as hard to keep your home cool and comfortable.

Extend the Life of Your Furnace

No one wants to have to replace their cooling system prematurely. Units that get regular maintenance last much longer than units that do not.

Save Money

With regular AC maintenance, you can avoid the need for costly repairs in the future. It is much more cost-effective to prevent problems than to deal with them after the fact.

Stay Comfortable

The purpose of having AC in the first place is to help you stay cool and comfortable. With preventative maintenance, your unit will work effectively.


Contact Us

By submitting this form, I agree that D&H may contact me regarding heating / cooling services via email, telephone, text message, or automated technology at the email address and phone numbers provided.

D&H Air Conditioning & Heating

AC repair, maintenance and installation

3629 N Oracle Road

Tucson, AZ 85705


7 Days a Week:  24 Hours

licenses: AZ ROC# C-79 #070188 / R-39 #076494