HVAC A LEGACY OF SERVICE & TRUST SINCE 1976

Air Conditioning & Heating Services in Glendale, AZ

Valley-Wide Service | 7 Days A Week

The heat in Glendale can hit hard, and cold snaps can happen anytime. Is your HVAC system ready to take on the temperature swings? Donley A/C & Plumbing can provide the HVAC repairs, installations, or maintenance you need. Our team of licensed and insured technicians can diagnose and resolve any issue with your system.

Keep your HVAC system working like new. Call (602) 698-8912 to schedule heating or air conditioning services in Glendale.

Cooling Services

Temperatures in the Glendale area regularly rise above 100 degrees in the summer. Your air conditioner must stay in working condition to provide comfortable and safe temperatures for you and your family.

Look to Donley A/C & Plumbing when you need cooling services for your home. We provide:

Indoor Air Quality Services

Clean air can be a problem in the Southwest. Between the outdoor dust and often sealing up the home to keep in the cool air, your air can get very polluted.

Make sure you’re breathing the cleanest air possible with services from Donley A/C & Plumbing. We install and service:

Heating Services

Even in Glendale, it’s essential to have reliable heating. Make sure your heating unit runs efficiently with help from our team. We offer:

Heating repair
Heating installation
Heating maintenance

Heat Pumps

Heat pumps offer efficient heating and cooling from a single system. On warm days, these units pump hot air out of the home while on cool days, they pull in heat from outside. Whether you need heat pump repair, replacement, or maintenance, Donley A/C & Plumbing is here to help.

Ductwork & Ductless Mini-Splits

Air ducts are a vital part of your HVAC system. You’ll lose valuable heating and cooling if they’re cracked or broken. For homes that don’t have an air duct system, ductless mini-splits offer single-room heating and cooling. These units work independently of any duct system.

We offer air duct and ductless HVAC system services throughout Glendale and the Phoenix area. Look to us when you need:

Ductless mini-split repairs
Ductless mini-split replacements
Air duct repairs or sealing

Why Choose Donley A/C & Plumbing?

For over 49 years, Donley A/C & Plumbing has been in the business of helping people. We love our community and strive to deliver unbeatable services and products. Our team uses the best tools in the HVAC industry to provide top-notch HVAC services. You can depend on us for upfront pricing, specials, and exceptional customer service.

Call (602) 698-8912 today to schedule HVAC services in Phoenix.

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“Absolutely Love Donley”
“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.
“Garret Did an Exceptional Job”
“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.
“Happy Home. Happy Customer.”
“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.
“Donley Plumbing is Top Notch!”
“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.
“Can’t go wrong here!”
“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.
“Quick & Efficient”
“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.
“10 out of 10”
“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.
“Great customer service!”
“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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Honest Pricing. Get Help Today!

Count on our team for fast responses, upfront pricing, and quality work—because you deserve service you can trust.

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Frequently Asked Questions

Have questions? We are here to help. Still have questions or can't find the answer you need? Give us a call at 602-698-8912 today!

Do heat pumps work when it’s cold outside?

Yes, heat pumps even work when it’s cold outside, but the colder it is, the harder they work to do so. That means that as it gets colder, it becomes less energy-efficient. However, they’re ideal for Phoenix’s climate, where temperatures are rarely below freezing.
How long does it take to install a ductless mini-split system in Phoenix?

Installation time can vary depending on several factors, but typically, our expert team at Donley A/C & Plumbing can install a system within one day.
How long does AC maintenance take?

Our comprehensive AC tune-ups are thorough and can take up to two hours to complete.
How often should I change my air filters?

It depends on the filter and other factors, including whether you have pets in the home, smoke, leave windows open during the day, etc. Some filters will fill up within a month, while others may take three months. Because every home is different, we recommend checking your filters every month until you establish the ideal frequency for your home.
How long does a ductless mini-split system last?

If regularly maintained, a ductless mini-split can last 15 to 20 years. It’s one of the most durable HVAC systems, making it a popular and energy-efficient choice.