HVAC A LEGACY OF SERVICE & TRUST SINCE 1976

Heating & Air Conditioning Services in Surprise, AZ

Proudly Serving the Valley

When the weather outside is intense, you’ll need a reliable HVAC system to keep you comfortable. At Donley A/C & Plumbing, we’re always ready to help Surprise residents with any HVAC installations, repairs, or maintenance they might need.

We strive to deliver high-quality heating, AC, and indoor air quality services from trained, experienced technicians so you can enjoy peace of mind and unwavering comfort throughout the year.

Call Donley A/C & Plumbing at (602) 698-8912 today to schedule HVAC services in Surprise, AZ.

Heating Services

A reliable furnace makes a difference on those chilly winter days and nights. Turn to our team when you need these heating services:

Heating installation and replacement: Whether it’s a first installation or a replacement, we can quickly assess your heating needs and install an appropriate new model for long-term comfort and energy efficiency.
Heating repair: When you find yourself with no heat, strange behaviors, or unusually high energy bills, call us for fast, thorough solutions to your heating issues.
Heating maintenance: Routine maintenance is crucial to keep your heating performing correctly for years and help you avoid replacing it prematurely.

Air Conditioning Services

Surprise residents rely on their air conditioners throughout most of the year, which means it’s pretty common to find yourself in dire need of AC services. Our team can help with:

AC installation and replacement: Are you ready to install a new air conditioner for reliability, efficiency, or more power? We’re ready to help you find the perfect fit.
AC repair: When you’re dealing with short-cycling, frozen evaporator coils, or high electric bills, give us a call, and we’ll resolve the problem quickly.
AC maintenance: Let our team handle all the little details that keep wear and tear to a minimum so you can get the most value and consistency out of your AC.

Indoor Air Quality Services

Clean air is crucial to your health and comfort — to say nothing of the impact of air quality on your home, electronics, furniture, and other property. We can assess your indoor air quality and address common issues with solutions such as:

Heat Pumps

A heat pump is an excellent option for keeping your home comfortable and offers incredible energy efficiency. Whether you want a heat pump installed or need services like repairs or maintenance, you can always count on Donley A/C & Plumbing to have you covered.

Ductwork & Ductless Mini-Splits

Need help dealing with your ducts? Whether that means sealing and upgrades or doing away with them entirely with a ductless mini-split, we’re here to help. Ductless mini-splits replace a system of ductwork and vents connected to a central unit with a set of interior units connected via small refrigerant lines to a single exterior unit, saving space and allowing for zoned climate control.

Our ductless mini-split services include:

Ductless mini-split installation and replacement
Ductless mini-split repair
Ductless mini-split maintenance

Why Choose Donley A/C & Plumbing?

Over more than four decades of service, the Donley A/C & Plumbing team has served countless residents throughout the area with superior customer service, craftsmanship, and products. We aim to be timely, professional, and effective at all times and on all jobs.

We also make keeping your system in top condition easy with high-value maintenance agreements to simplify your maintenance needs and help you control costs.

Keep your home well-equipped to resist the Arizona climate. Request HVAC services today by calling our team at (602) 698-8912.

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“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.
“They Have Never Disappointed!”
“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.
“They Know Their Stuff”
“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.
“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.
“Can Say Enough”
“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.
“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.
“No One Better!”
“This is by far the best plumbing company I have used. Travis arrived on time and efficiently unclogged my sewer line. The fee was reasonable. I am pleased with the service.”

- Richard P.
“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.

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Reliable Service.
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!

Can I use a heat pump to cool my home as well?

Yes, heat pumps can both heat and cool your home, making them ideal for year-round comfort.
Do I need to replace my ductwork when I replace my AC system?

It depends on the condition of your existing ductwork. If your ductwork is in good condition and adequately sized for the new system, you may not need to replace it. However, if your ductwork is damaged, leaking, or improperly sized, it may need to be replaced to ensure the new system functions properly and efficiently.
An experienced HVAC technician can assess the condition of your ductwork and provide recommendations for replacement if necessary.
Are heat pumps loud when operating?

Heat pumps are quieter than many other heating and cooling systems, making them an ideal choice if you’re looking for a quiet system.
Will a ductless mini-split heat and cool my entire home?

If properly installed, a ductless mini-split system is a whole-home solution. A single indoor and outdoor unit will exchange or remove heat, allowing you to control and modify the temperature in every room individually.
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.