
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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“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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“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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“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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“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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“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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“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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“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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“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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“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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“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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“I have been with Donley for over 25 years. They offer professional services from the office staff to the technicians. Their prices are more than fair. They are trustworthy and honest. Wonderful people to work with.”- Sharon F.
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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.
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.
