Expert AC Services in Mount Lemmon, AZ

Life in Mount Lemmon, AZ, comes with its own set of weather challenges, which makes reliable heating and cooling a must. One Hour Heating & Air Conditioning® is your local solution for expert AC services. We aim to keep your system in shape, whether it’s a routine filter change or a full-on emergency repair. We’re dedicated to being on time too, we know how valuable your time is and we try to make every second count. Our team of certified and friendly technicians have the know-how to tackle any job. We believe in excellence on every call, every job, big or small. So if you need reliable AC services in the Tucson area, don’t hesitate and reach out today to One Hour Heating & Air Conditioning® so we can get you back to comfort.

Dependable Service, Proven Results

At One Hour Heating & Air Conditioning®, we’ve built our reputation in Mount Lemmon on being reliable, honest and always prepared. When you schedule service with us, we guarantee to be on time because we know your time matters. With our Straightforward Pricing® Guide, you’ll know the cost before we begin, no surprises. Whether it’s routine AC services or an emergency HVAC service, our techs arrive ready to work and trained to tackle the issue fast and safely. We follow a strict code of ethics, meet every regulation, and back our work with a 100% satisfaction guarantee. Mount Lemmon homeowners deserve a dependable heating and cooling team, and that’s exactly what we deliver.

Trusted For A Reason

Screened, Trusted Technicians
Available Day Or Night
Code-Compliant HVAC Work
Straightforward Pricing® Guide - No Surprises
Honesty, Integrity, Respect
Committed To Arriving On Time
100% Guaranteed Service

Your Complete HVAC Resource

Mount Lemmon’s unique climate demands reliable heating and cooling care, and One Hour Heating & Air Conditioning® is here to help. We handle everyday maintenance like replacing filters, clearing drain lines and inspecting thermostats to keep things running efficiently. And if your unit suddenly shuts off, starts making strange noises or only blows warm air, our team is on standby with our swiftly responsive emergency HVAC service. No matter what time of day and whatever the problem, our skilled technicians employ all the latest tools and techniques to get you back up and running. And we’ll get there fast and on time, keeping the inconvenience you experience to its utmost minimum.

Here’s the services we offer:

Here For Mount Lemmon Homes

In Mount Lemmon, staying comfortable means having an AC system that works throughout the seasons. With the varying temperatures here, it’s important to have a system working in tip-top shape. We deliver dependable solutions for homes big and small, all year ‘round at One Hour Heating & Air Conditioning®. We’re proud to serve this mountain community with reliable and responsive care, from regular AC services and maintenance to emergency HVAC services when you’re in a real bind.

Proud To Serve Local Communities

Summerhaven
Loma Sabino Pines
Sabino Canyon Parkway
Oro Valley
Marana
Sahuarita
And more!

Your Comfort, Our Priority

One Hour Heating & Air Conditioning® proudly serves Mount Lemmon with heating and cooling services built for mountain life. From cool evenings to sudden summer heat, we know how quickly comfort can sometimes slip away, and how much it means to be able to get it back. Our team handles it all, whether it’s regular maintenance like clearing drain lines or a more urgent problem like a blown compressor in the middle of summer. Our friendly technicians are certified and show up prepared for each and every job. We stay in compliance with all regulations, follow a strict code of ethics and communicate every step of the way. With our Straightforward Pricing® and 100% satisfaction guarantee you’ll find that you won’t have any surprises on the bill and you’ll be left with the satisfaction of a comfortable home. We’re here to keep things running smoothly for you, no matter the hour. Call One Hour Heating & Air Conditioning® today for reliable heating and cooling service in Mount Lemmon, backed by fast response and proven expertise!

We Have a Reputation

For Being Punctual, Friendly and Knowledgable

4.84

(156078 reviews)

Tristan Erickson

in the last week

“We had a fantastic experience with Oscar from 1 Hour Air Conditioning & Heating! He was incredibly knowledgeable and took the time to thoroughly explain all the aspects of what we needed for our home. The entire process was smooth and great. Highly recommend! Definitely recommend to anyone.”

Amy Grayne

in the last week

“I give the 5 stars mainly due to Andrew. All Around my experience is still a 5 star but I do Admit I was cranky without any air in the house and I had given attitude a bit but Andrew made sure I understood what the best way to deal with it all was and never did I feel a bad vibe in trusting his words. He is the best and I hope he is the one who will Help me next as he was the only One to inform me of the membership I ended up getting and which helped Me save and he just all around had my best interest!!! Thank you Andrew and thank you to everyone else at one hour air conditioning and heating. I also appreciated David too he helped escalate my call based on the circumstances. This is for sure who to call!!”

Noel Lovell

in the last week

“I could rave about what a positive experience I had working with Angel. He went the extra mile and put in the effort to make a tough repair happen. 10/10 I recommend and will use their services again!”

Matthew Moser

in the last week

“Spencer is very knowledgeable and even better at explaining how AC systems work. He's been here before but even with it being years ago, was able to rapidly diagnose and fix the issue with my HVAC. Highly recommend Duggan's, they fixed my incorrectly designed system and it's kept on trucking for years, whereas before I had to have other services out multiple times a year to "fix" it.”

Lauren Barnett Megdal

in the last week

“Incredible service! Very responsive and professional. They answered my phone call immediately and someone was at my house within 30 mins and the AC problem was fixed with 15 minutes! Thank goodness because our home upstairs was 80 degrees and we have a toddler and baby and it was bedtime and we needed the home cooled right away. I’m so grateful! C.C. was so fast and friendly. 10/10 recommend!”

Donita Day

in the last week

“Our AC stopped working lastnight (Thursday) we called Younbergs today (Friday)... Cody Frazier showed up got us back up and running within no time! What we feared could cost thousands, eneded up being just a few hundred! Thank you Youngerbergs for being an amazing reputable business.”

av_zero

in the last week

“We were able to get a same day appointment and we can not rave enough about the service Kamal provided! Very thorough, took his time in problem shooting the issues. Was highly intelligent, kind and considerate. What a gem y’all have!”

Darrin Lancaster

in the last week

“Jesse came by on time to address the issue I was having and was able to get it working quickly and then showed me why I should have had maintenance done sooner than 4 years. He helped me with the system to get rid of the mold and the sludge and the stuff that was building up inside so I would have clean air. Would recommend anybody working with Jesse to address their system and their issues. Thank you”

Dontre Avery

in the last week

“Brian was absolutely amazing in explaining and helping us homeowners to understand the value and importance of keeping the maintenance on an HVAC unit. He went above and beyond and let us know that even though we had bad news, he allowed us to clearly think through a solution and give us plenty of options to consider. Absolutely! Five stars with Brian and I wouldn't want anyone else!!!!”

Amy Dull

in the last week

“My appointment with Jerry Gallo went really well to get a quote for updating our furnace and adding air conditioning to the house. Very concise and straightforward. No annoying elaborate sales pitch. 😀”