
HVAC & Plumbing Services in Sun City, AZ
Proudly Serving the Valley
Donley A/C & Plumbing has kept Sun City residents comfortable for over 49 years. We offer top-quality HVAC and plumbing services to Sun City, ensuring your heating, cooling, drains, and pipes function reliably year-round. Our commitment to the community shows in every job we do, and our industry expertise and hard work ethic are second to none.
With honesty and superb customer service, we provide a full range of home comfort services, from AC repair and heating installation to water heater replacement and drain cleaning.
Call Donley A/C & Plumbing today to schedule HVAC and plumbing services in Sun City, AZ.


How Can We Help You?

HVAC Services
Due to our extreme temperatures, every Sun City home and business needs a reliable heating and cooling system to stay comfortable year-round. Donley A/C & Plumbing provides comprehensive AC and heating services to keep you safe and comfortable.
Whether you own a furnace, heat pump, central AC, or ductless mini-split, we offer the services you need to keep your system operating effectively.
Air Conditioning Services
When temperatures rise, you can rely on Donley A/C & Plumbing to keep your home cool. Our AC services in Sun City include:
- AC repair: Our AC technicians provide expert repairs and go above and beyond to ensure your AC issues have been handled properly.
- AC maintenance: Annual tune-ups keep your air conditioner in pristine condition, preventing breakdowns, boosting efficiency, and saving you money.
- AC installation and replacement: When your AC has reached its end, our team will help you find the best replacement and install it with unwavering precision.

Comfort You Can Count On. Service You'll Want to Share.
We Do It Right, Guaranteed.
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“I can't say enough about the amazing professionalism and help that I received when my AC unit needed to be replaced. Everyone was kind and took the time to answer many questions. They were honest, punctual, and knowledgeable.”- Linda W.
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“Seth was so helpful. He listened to my concerns and replaced my disposal with 30-40 minutes. We have been using Donley for years and will continue to be lifelong customers.”- Virginia H.
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“We contacted Donnelly for on after hours emergency plumbing issue. Eric was a true professional! He was thorough and explained his findings in layman’s terms putting our minds at ease.”- Kathy G.
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“The technician who responded to my inquiry, Sean, was extremely personable and professional. He was timely in his arrival and honest. He explained all the work that needed to be done.”- Arthur G.
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“We’ve used Donley Services for 7 years and found them to be responsive, thorough, and never pushy about buying unneeded products or services. It’s hard to find reliable service techs. Look no further.”- Peter T.
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“Air conditioner installation went very well, guys were pleasant. Got the job done efficiently even on an extremely hot day. Very pleased with Donley. They do what they say and deliver a good product. We are happy that our home is finally cool.”- Kathy S.
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“We are so happy with Donley and the new AC they just installed. Chris and his team were so quick, thorough and courteous. Chris took the time to help us get the new thermostat registered online and working. He was extremely patient!”- Linda G.
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“We had a cranky toilet that needed repair; Walt tried to fix it with four different mechanisms and then recommended replacement. He completed the job quickly and neatly; very professional and knowledgeable. Highly recommend!”- Christine S.
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“This is by far the best plumbing company I have used. Travis arrived on time and efficiently unclogged my sewer line. The fee was reasonable. I am pleased with the service.”- Richard P.
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“Thank you for the service and troubleshooting on our HVAC system today. It's refreshing to deal with an AC company that has qualified and honest techs like Juan B. - we will always request him in the future.”- Robin G.
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“The recent freeze broke a pipe on my roof. The team at Donley Plumbing came out the following day and did a great job fixing the pipes on my older home. Josh was great to work with.”- Jason B.
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“- Dennis C.
The whole crew did an excellent job. They were very prompt, the install was clean and obviously effective as the house immediately began to cool. Derrick managed the process very well and kept me updated on the progress.
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