Most homeowners don’t think much about their air conditioner until something goes wrong. The reality is that many common cooling problems begin long before there are obvious warning signs. Routine maintenance gives technicians the opportunity to identify wear, check system performance, and address minor concerns before they develop into larger repairs.

As part of our air conditioning services, D&H Air Conditioning, Heating & Plumbing provides professional AC maintenance designed to help homeowners protect their comfort systems and prepare for the demands of the cooling season. Since 1959, our team has helped homeowners keep their systems operating efficiently through regular inspections, tune-ups, and preventative care.

Contact D&H today or schedule online to book your AC maintenance service or consultation.

AC maintenance being conducted on exterior HVAC.

Benefits of AC Maintenance

Air conditioning systems operate under demanding conditions for much of the year. Routine maintenance helps keep equipment operating efficiently while reducing unnecessary wear on critical components. Benefits of regular AC maintenance may include:

  • Reduced risk of unexpected breakdowns by identifying developing issues before they become larger repairs.
  • Improved energy efficiency through proper system operation and airflow.
  • Longer equipment lifespan by reducing unnecessary wear on critical components.
  • More consistent indoor comfort and cooling performance throughout the season.
  • Greater confidence that your system is prepared for periods of heavy use.

What Does AC Maintenance Include?

A maintenance visit involves more than a quick inspection. Our technicians evaluate key system components, verify proper operation, and look for signs of wear that could affect performance or reliability.

System Performance Testing

We test system operation to verify that major components are functioning properly. This includes checking temperatures, airflow, controls, and overall cooling performance. Performance testing helps identify issues that may not be noticeable during everyday use.

Component Inspection

Our technicians inspect important system components for signs of wear, damage, or deterioration. Identifying developing issues early can help reduce the likelihood of unexpected repairs. These inspections provide valuable insight into the overall condition of the system.

Cleaning & Efficiency Checks

Dust and debris can affect airflow and system efficiency over time. We inspect and clean accessible components as needed while checking factors that may impact performance. Keeping the system clean helps support reliable operation throughout the cooling season and prevents the need for expensive AC repairs in the future.

Maintenance Recommendations

At the end of the visit, our technicians discuss any concerns they find and answer your questions. If additional service is recommended, we’ll explain the issue clearly and provide straightforward guidance. Our goal is to help you make informed decisions about your system’s care.

Trust the local experts at D&H for all your AC Maintenance Needs

D&H Air Conditioning & Heating service van in blue and red with a ladder rack and company logo

Why Homeowners Choose D&H for AC Maintenance

Regular maintenance is about more than checking a box each year. Homeowners trust D&H because we take the time to thoroughly inspect their systems, explain our findings, and help them stay ahead of potential problems. With 67 years of experience, 24/7 service availability, and Family Maintenance Plan options, our team is committed to helping customers get the most from their air conditioning systems.

Ready to schedule AC maintenance? Contact D&H Air Conditioning, Heating & Plumbing today or book your appointment online to keep your system running at its best.

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Special Offer

Starting at $67

AC Tune-Up & Water Heater Flush Special
Offer cannot be combined with any other promotions, discounts, or special offers. Additional fees may apply. Terms and conditions apply.
Expires: Sep 30, 2026

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Recent Reviews

Hear from our satisfied Customers

Tim was a wonderful technician. He quickly diagnosed the problem with the AC unit, and explained everything to us. Now we know what to look for ourselves ! Thank you, Tim ! Alan and Sarah
Alan
3 days ago
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It was.good the guys were informative with things they had to do
Christina Reyes
4 days ago
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Excellent work and very professional service. D&H responds right away and Isaiah did a great job with the work, diagnosis and repair.
Jeff Silvertooth
4 days ago
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UPDATE ***************************************The company came out to correct issues from previous install. Today's service was great and I can't complain. I still can't give a 5 star review until I know the issue is fixed. By tonight we will know. Once I hear from the manager and he/she validates the repair finally done right and the drywall access has been fixed them I'll update my rating as fully satisfied. Everything below this update is old review which will also be pulled once 100% complete
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This review is not on the tech. Its on after the sale and install follow up.
D&H knows all the issues we had prior to buying a new unit and they made that right. They also know about the defective product and made that right. But my complaint is what happened after the install.
The thermostat was loose and not installed securly, even the tech moved it back in place and didnt say or do anything about it. I had to call and get someone back out to secure it.
After second system was installed and finally working, before tech left he said someone would be in contact to fix the damaged drywall where the return air was put in. Not even an appoligy. One week later no call. I call D&H and im told it will be sent to a third party and they will contact me. 4 days later still no call so i call back and ask for phone number to contractor and im told they dont have it but she will send my info to the scheduler and they will contact me and also have contractor contact me. So now were on today almost 24 hours later and still no call.
So D&H im not happy with service after the sale. You got my $18,000 dollars and im a closed book.
By the was they also took out the old gas furnance and shut gas valve off but did not cap the line. This im told is a must.
Its sad but im having to hire someone to come and repair the wall and install the return air vent properly(only one of 4 screws are holding it and there is nothing keeping the unit from pulling air, dust and what ever from the wall cavities. There is a top board in attic but air is still being pulled from around cracks and holes and open space)the area where the air handler attaches to the duct work is loosing more air then what comes out of the registers. High power line is not secure and they used part of the old systems condensation tube to run the new line, the old tube is colapsed. This is just not quality work. Ive asked for someone to come out and see this with no responce. Very disapointed, that i have to hire another hvac company to come clean up their work
UPDATE
Owner responded with apoligy and said someone would call me this evening. That was 40 minutea ago and its 5:35 in the evening.
I left a message on their chat box not to bother, i cant afford to take more time off of work. Ive already secured a contractor to fix my walls and cap the gas. Ill find someone else to fix the leaking air and condensation tube

Had service after hours on Sunday. Luis came out found and took care of the issue right away.
D R
5 days ago
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Isiah did a great job in fixing our ac problem. Very polite and knowledgeable.
Jeanne Hakey
6 days ago
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Christian did an amazing job with our AC! He was professional, friendly, and very knowledgeable. He got everything taken care of quickly and made sure everything was working perfectly. Highly recommend Christian!
Calista Gonzales
1 week ago
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D&H showed up when they said. Talked my wife and I with respect then came out next day and finished before noon installing my new unit. I’ll be referring them to others
Ron Cox
1 week ago
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I am so fortunate to have contracted with D&H. Response time has been speedy and service exceptional.
Karen kirts
1 week ago
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Tim was tech, friendly, efficient, explained problem and I would like to request Tim if and when I need a tech.again. Super nice.
vicki warren
1 week ago
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Zack was very professional and thorough
!
Anthony Isom
1 week ago
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Isaiah serviced my A/C unit today. He did a thorough job. He is very professional and kind. I highly recommend him and D&H .
Linda Merrick
1 week ago
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The customer service team are always so nice and helpful when I call. Would recommend D&H to my friends and family.
M C
1 week ago
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Christian came to fix our Air conditioner he was very informative took his time and explained to us what he had do
Cindy Gonzalez
1 week ago
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Devon did an excellent job of diagnosing our system. He did a thorough job and showed us exactly the problem we needed to address. Five stars.
Stephen Johnson
1 week ago
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Luis was fabulous, did the job at a more than fair price, We appreciate him very much and hope he has a blessed career! Thanks again Luis.
Tim Rose
2 weeks ago
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Arizona summer is just brutal, I was having issues with my AC again. I hear the unit running but the house is not getting cold. I called D&H 24/7 service. They were able to fit me in the same day (Saturday). Giovanni did the inspection, he took photos and run diagnostics so he can explain it better. This was a same day maintenance service so hoping not to have a lot of issues. The problem was the capacitor (about 3 years old)that needs to be replaced. The issue was resolved and AC is working properly especially with 105 degrees heat. I definitely recommend D&H service. Giovanni did a phenomenal job, absolutely satisfied and I highly recommend D&H.
I also wanted to extend my thanks for Giovanni for bringing up a gas smell and having us reach out to Southwest Gas to do a courtesy check. They eventually came out and fix the leak. His attention to detail and priority to safety is above and beyond. Thanks you Sir.
Xavier Ian Goco
2 weeks ago
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    Trust the local experts at D&H for all your HVAC & Plumbing Needs

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