
HVAC & Plumbing in Peoria, AZ
Valley-Wide Service | 7 Days A Week
Donley A/C & Plumbing has served residential and commercial clients throughout the Greater Phoenix metro area since 1976. Our plumbers handle everything from camera inspections to sewer and septic system restorations. Our heating and cooling team performs maintenance, repairs, and installations, including conversions. We’re available Monday through Sunday for scheduled appointments and around the clock for emergency repairs.


How Can We Help You?

Heating & Cooling Expertise You Can Count On
Heating and cooling problems can lead to big expenses long term. Rather than wait to see if a problem will go away on its own, contact us. What many homeowners don’t realize is that HVAC issues often decrease efficiency. As the problem worsens, energy consumption will rise, causing you to spend a lot more on electricity or fuel.
Some of the warning signs you should watch for include:
- Weak airflow
- Unusual noises
- Unpleasant smells
- Warm or cold spots
- Short- or long-cycling
Is It Time for a New HVAC System?
If your heating and cooling systems are getting old, it’s an excellent time to consider replacement. Modern systems are notably more efficient than those made 10 to 15 years ago. Your older system has likely diminished in efficiency over the years as well.

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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“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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“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 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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“If you are looking for someone who does high-quality work at very reasonable price Donnelly, AC and plumbing is the way to go! Jose Felix did a kick ass job. He checked everything and fixed it as he went that that he found.”- Glenn G.
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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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“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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“Josh Jimenez is about the best plumber we've ever had, and we have lived in a lot of homes. He is a great listener, thinker and doer. He solved our concerns quickly and with follow through.”- Katherine 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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“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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“Donley provided expert advice at a price thousands less than another company. Sean was great, respectful and did a great job for us. Highly recommend this company.”- Kimberly B.
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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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We’re Your Local Plumbers & HVAC Technicians
Donley A/C & Plumbing is proud to serve homeowners and businesses in Peoria and throughout the neighboring communities. We’ve trained plumbers and heating and cooling technicians for decades. Our company knows what it takes to deliver the product quality, workmanship, and customer service you deserve. Our approach has earned us BBB accreditation, an A+ rating from the BBB, numerous awards, and many five-star customer reviews.
If you’d like to schedule a service or an on-site consultation, contact us online or call us.
