
HVAC & Plumbing in Mesa, AZ
Proudly Serving the Valley
Donley A/C & Plumbing has provided expert plumbing, AC, and heating services in Mesa since 1976. We serve both residential and commercial customers with long-lasting, energy-efficient solutions. You can count on us for comprehensive service, including 24/7 emergency service. If it’s time to resolve a leak, replace a heating system, or repair an AC unit, choose Donley A/C & Plumbing for exceptional service.
Contact our team today to schedule plumbing, AC, or heating services in Mesa, AZ.


How Can We Help You?

HVAC Services
A common mistake homeowners make is not worrying about their HVAC systems until there’s a problem. You can enjoy reliable heating and cooling year-round through routine HVAC maintenance and prompt repairs. We service and install central air conditioners, heat pumps, furnaces, ductless mini-splits, and more.
Air Conditioning
When temperatures rise in Mesa, AZ, Donley A/C & Plumbing will be ready to handle your cooling needs. We offer these AC services in Mesa:
- AC repair: We can fix your air conditioner, whether the issue is minor or complex.
- AC maintenance: Schedule an annual AC tune-up to extend your system’s lifespan and improve performance.
- AC installation and replacement: Rely on our experts to install or replace your cooling system.

Comfort You Can Count On. Service You'll Want to Share.
We Do It Right, Guaranteed.
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“Isidro was fantastic. Evaluated the problem, gave an estimate and the job was completely in a timely manner. He was very polite and verified which type of valve we wanted before installation. We will call Donley for any future services needed.”- Margie S.
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“Arrived on time, called ahead, explained possible costs up front, and then fixed the issue quickly. Great service and knowledgeable technician. Friendly and respectful.”- Jodi R.
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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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“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’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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“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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“Seth was very clear in explaining how he would fix our outdoor faucets, the reverse osmosis system and the cost to do so! Seth was on time and completed the work quickly and efficiently!”- Pat E.
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“Jose was very professional and friendly. He discussed what he would do, and when the job was done, he went over his findings and asked if there was anything else he could do for us.”- Kevin P.
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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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“- Misty M.
They come out promptly and fix the problem. They do not overcharge extremely fair with their prices. I have had one unit replaced and no issues since 2022 and I’m going to have a second unit replaced.
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“What can I say to convey the great service I received. Quick, efficient, and personable. Have had no problems since it was installed.”- Mel 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.
Why Choose Us?
Donley A/C & Plumbing serves homeowners and businesses throughout Mesa and surrounding areas, and we’ve been doing it for over four decades. We’re reliable experts who pride ourselves on honest and timely service you can count on. Our team is well-established in the community and takes an active role in local charities. We offer appointments Monday through Sunday and are available 24/7 for emergencies. Our company also provides no-obligation second opinions, free installation quotes, and flexible financing options subject to credit approval.
Request an appointment online or call Donley A/C & Plumbing today.
