
HVAC & Plumbing Services in Scottsdale, AZ
Valley-Wide Service | 7 Days A Week
For over 49 years, Donley A/C & Plumbing has provided quality home services to Scottsdale, AZ, residents. We pride ourselves on our highly trained technicians and commitment to excellent customer service. Whether you need HVAC or plumbing services, our reliable team will provide expert solutions with honesty and integrity.
Avoid the headache of leaky pipes or broken HVAC units. Call Donley A/C & Plumbing to schedule plumbing or HVAC services in Scottsdale.


How Can We Help You?

Comprehensive HVAC Services
Every Scottsdale resident understands the importance of keeping their home comfortable. From scorching hot summer days to chilly winter nights, your HVAC system is essential to your home. Donley A/C & Plumbing provides reliable HVAC services with a 100% customer satisfaction guarantee.
Our highly trained technicians service and install central air conditioners, heat pumps, ductless mini-splits, and furnaces.
Air Conditioning Services
With summer temperatures reaching over 100 degrees, your air conditioner works hard to keep your home cool. The strain this causes can lead to a system breakdown when you need it most. Donley A/C & Plumbing provides air conditioning services in Scottsdale, including:
- AC repair: We perform quick, accurate repairs for long-lasting reliability.
- AC maintenance: Book an annual tune-up to maximize comfort and reduce energy costs.
- AC replacement and installation: Our team can install or replace your air conditioner with a new, energy-efficient model.

Comfort You Can Count On. Service You'll Want to Share.
We Do It Right, Guaranteed.
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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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“We are so happy with Donley and the new AC they just installed. Chris and his team were so quick, thorough and courteous. Chris took the time to help us get the new thermostat registered online and working. He was extremely patient!”- Linda G.
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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.
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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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“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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“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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“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.
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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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“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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“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.
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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.
