What’s the best thermostat setting for summer in Tucson?

For optimal comfort and energy savings during summer in Tucson, set your thermostat to 78°F (25°C) when you're home. If you're away, raising it to 85°F can help reduce cooling costs. Using a programmable or smart thermostat can make these adjustments automatic and more efficient.

Do you provide emergency after-hours HVAC service in Tucson?

We are available 24/7 to take your call for emergencies. Our appointment hours are listed above.

How can I improve indoor air quality in Tucson?

To improve indoor air quality in Tucson, start by regularly changing your HVAC filters, scheduling routine maintenance, and using air purifiers. Consider duct cleaning if your home has excessive dust or allergy symptoms. Proper ventilation and keeping your home clean are key to healthier air.

How often should I service my HVAC system in Tucson?

It’s ideal to service your cooling system each spring and your heating system each fall to ensure you find small issues before they become big problems.

Do you offer HVAC financing in Tucson?

We work with several lenders to provide financing options for qualifying customers. Ask your technician about your financing options.

How often should I have my furnace serviced in Tucson?

It’s recommended to have your furnace professionally serviced once a year, ideally in the fall before the heating season begins in Tucson. Annual maintenance helps ensure safe operation, improves efficiency, and can extend the life of your system.

How often should I have my air ducts cleaned in Tucson?

It’s generally recommended to have your air ducts cleaned every 3 to 5 years in Tucson, or more often if you notice dust buildup, allergies, or musty odors. Homes with pets, recent renovations, or high pollen levels in Tucson may benefit from more frequent cleanings to maintain healthy indoor air quality.

How often should I schedule AC maintenance in Tucson?

You should schedule AC maintenance once a year, ideally in the spring before the cooling season starts. Regular tune-ups help your system run efficiently, prevent breakdowns, and extend the life of your unit, especially important in Tucson's summer climate.

What size HVAC system is right for my home in Tucson?

The right HVAC system size for your home in Tucson depends on factors like square footage, insulation, number of windows, and local climate. A professional load calculation ensures your system is properly sized for comfort and efficiency. Oversized or undersized units can lead to higher energy bills and uneven temperatures.

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Bringing Comfort Home

Tucson HVAC Services

One Hour Air Conditioning & Heating® of Tucson

4.7

(574 reviews)

Heating & Cooling

Services By One Hour

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HVAC Emergencies

Fast 24/7 emergency HVAC repairs to restore your comfort when you need it most today.
Air Conditioning

Reliable air conditioning services to keep your home cool and comfortable all year.
Thermostat Repair

Expert thermostat services for precise temperature control and maximum energy savings.
Ductwork

Expert ductwork services to optimize airflow and maximize HVAC system efficiency.
Indoor Air Quality

Comprehensive air quality solutions for healthier, cleaner indoor air in your home.
Heating

Professional heating services to keep your home warm and comfortable year-round.

HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Tucson, AZ

When homeowners want a reliable heating or air conditioning system that they don’t have to think about, they call One Hour Heating & Air Conditioning. We are the premier HVAC service provider in the United States for a simple reason: we actually care about your comfort.

At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. It’s why we back all of our work with a 100% customer satisfaction guarantee for two years, and it’s why we’re always on time—guaranteed.

One Hour Heating & Air Conditioning technician Checkin HVAC.

Hours of Operation

We are available 24/7 to take your call for emergencies. For all other services, our appointment hours are:

Monday

24 hours

Tuesday

24 hours

Wednesday

24 hours

Thursday

24 hours

Friday

24 hours

Saturday

24 hours

Sunday

24 hours

Special Offers

Mention these discounts at time of service

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$59

$59 A/C or Heating Tune-Up. Regular maintenance on your HVAC system keeps it running at its best. Book your Tune-Up today. Originally $119

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
$200 Off Duct Sealing

Did you know 25-40% of the air that’s supposed to blow through your vents is escaping through cracks and holes in your air ducts?

Wasting heating & cooling areas like your attic & even behind walls. Not only that dust debris and allergens are being sucked in and blasted all over your house.This is why your bedroom is freezing, your coffee table is always dusty & high Energy Bills

Cannot be combined with any other special
Free Service Call

with any Completed Repair

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
$50

Take $50 off your next duct cleaning

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
$50

Take $50 off your next repair

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
Free Diagnostic

With Repair

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
Free Estimates

For New Units

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.

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HVAC Services Have Great Guarantees

Our customers love what we do because we treat them like the neighbors they are to us. While we carry the One Hour name, we're an independently owned and operated business with a personal investment in the local community. We back our work with a 100% satisfaction guarantee, provide StraightForward® pricing guides for your benefit, and will pay you back for being even one minute late to an appointment.

We have a reputation for being punctual, friendly and knowledgable

4.7

(574 reviews)

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Super fast, great communication and friendly. Best HVAC service in Tucson and Marana!

Summer Johnston

April 4, 2026

Armani did a great job. Very helpful and liked the service he gave us.

Julie Young

March 23, 2026

Best HVAC company in Tucson! Thank you! Best service. Armani is the best!

John Turcotte

March 22, 2026

Brandon went above and beyond for our family. He and several of the technicians came together to problem solve our uniquely challenging situation. They were professional and did a good job. Brandon came in at what I’m sure was the end of a long day and did some hard work to get our AC running again in the midst of a heat wave

Garrett Hoanin

March 21, 2026

Jim from One Hour is friendly and checked everything to make sure our issue was solved. Highly recommend them.

Chris Fridlund

March 19, 2026

Armani and his team have gone to the next level in terms of their workmanship and concern. They installed my new system and I couldn’t be happier. I have been dealing with this for over 3 years until I finally found One Hour Air. They gave me the best price and product for my needs. I would recommend them without question. Thank you Armani, Jim, Paul and Junior. You guys are rockstars!

Avis Haley

March 17, 2026

Armani was great, very knowledgeable guy and helpful. Getting an entirely new furnace

Eli Davis

March 17, 2026

Completed duct cleaning & sealing as promised - on time - no surprises

Robert Smith

March 10, 2026

Armani and Jim spent the morning getting this unit on the roof. Armani spent the afternoon making it purrr. He does amazing work and has a great attitude about his work! I'll use these guys again and will request Armani every time! Thank you!

Paul Smith

March 5, 2026

If you want to remove negative reviews from your Google Business, contact me via my profile; my contact details are listed there. After work you can pay..

Fionna Bond

March 4, 2026

Here For You

When You Need Us Most!

Yellow One Hour Heating & Air Conditioning service van with company branding and slogan.

'Round the Clock Availability

No matter the hour, you can trust One Hour to be there to help you when you get hit with the unexpected.
100% Satisfaction Guarantee

We guarantee our materials, labor, and craftsmanship for up to two years from the date of your service.
StraightForward Pricing® Guide

Before we start any work, we discuss your available options so you know exactly what you are getting and how much it will cost. No hidden fees!
Always On Time…Or You Don’t Pay A Dime!®

We understand your time is valuable, so we promise to arrive at your home within the predetermined time window that you select, or your service call is free.

Financing Available!

Prioritize your comfort without fronting the entire bill on day 1 – contact us today to learn more about financing options.

Discover Your Options

Meet the Tucson Team

Elizabeth Cerveri

Comfort Advisor

Elizabeth Gallo has been in the HVAC industry for 15 years. Elizabeth has three children and is a Tucson Native.
Armani

Technician
- What do you like about your job?
Learning new things and helping people
- Why did you choose to get into the HVAC field?
Family Tradition
- What does it feel like to help someone in need?
Feels great and rewarding
- Where do you live?
Tucson
- What’s your family like?
Very Close
- Do you have any pets?
Yes, a dog
- What’s your favorite place to go out and eat?
Mexican Food
- What do you like to do when you’re not at work?
I am in the National GuardÂ and working out
Brittany

Office Manager

None
Danielle

Office

Hello, I’m Danielle, a dispatcher with a growing passion for indoor air quality. As a Tucson native, I’m dedicated to helping my community enjoy healthier, more comfortable homes. I’m excited to apply my new skills to make a positive impact in people’s lives.

Outside of work, I enjoy knitting, dancing, outdoor activities, and spending quality time with my children. For me, it’s all about finding balance and pursuing what I love. I’m grateful to have a career that allows me to contribute meaningfully while supporting my passions both at work and at home.

HVAC Near Me In...

One Hour Heating & Air Conditioning® of Tucson services the following communities:

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Expert Tips

Learn From Our HVAC Experts

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