
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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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!
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How often do I need AC maintenance?
For optimal system performance, we recommend scheduling AC maintenance annually. We recommend scheduling a tune-up with our team in the spring to make sure your AC is ready to operate efficiently all summer.
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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.
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When should I schedule ductless mini-split maintenance?
We recommend annual maintenance just before peak operating season. If you’re using your ductless mini-split for cooling, schedule a tune-up in the spring. Schedule maintenance mid-fall if you use your system for heating.
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How long should my ductless mini-split system last?
If your system gets regular quality maintenance, it could last as long as 15 to 20 years, though multiple factors, such as usage frequency, will affect your specific system’s lifespan.
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Should my heat pump be repaired or replaced?
Usually, a professional repair is sufficient to get a heat pump running properly again. However, if your system needs frequent repairs or is over 15 years old, your money is better invested in a new system. Our team can help you determine which option is best for your system and home.

