
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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“We have used Donley Service for over 30 yrs. You will not find a better or more honest company. For our recent service, a big shout out to Daniel. Great work and so pleasant. Use Donley you will never regret it.”- Lindsey Y.
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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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“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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“- 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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“Donley is the best! Came out after hours on a Friday to fix our AC. Milad was very knowledgeable and was able to make the necessary repairs quickly.”- Erin R.
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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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“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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“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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“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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“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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“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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“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.
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.
