What’s the best thermostat setting for summer in Sierra Vista?

For optimal comfort and energy savings during summer in Sierra Vista, 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 Sierra Vista?

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 Sierra Vista?

To improve indoor air quality in Sierra Vista, 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 Sierra Vista?

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 Sierra Vista?

We work built relationships with several lenders to ensure our customers are able to restore comfort in their homes. Ask your technician about your financing options.

How often should I have my furnace serviced in Sierra Vista?

It’s recommended to have your furnace professionally serviced once a year, ideally in the fall before the heating season begins in Sierra Vista. 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 Sierra Vista?

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

How often should I schedule AC maintenance in Sierra Vista?

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

What size HVAC system is right for my home in Sierra Vista?

The right HVAC system size for your home in Sierra Vista 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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Sierra Vista HVAC Services

One Hour Air Conditioning & Heating® of Sierra Vista

4.9

(810 reviews)

Heating & Cooling

Services By One Hour

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HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Sierra Vista, 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.

We Have a Reputation

For Being Punctual, Friendly and Knowledgeable

4.9

(810 reviews)

Cathe Wright

01-29-2026

“So very happy with my visit to look at my "ancient" furnace. D'Andre was patient, efficient,friendly, knowledgable and offered information, and a suggestion to have someone come out for a walk through and quote for something efficient to replace "this dinosaur". Easy to make an appointment (thanks Rachel), they called to let me know when to expect D'Andre (technician)...sticking with ONE HOUR HEATING! Thank you.”

Cindy Nelson

01-28-2026

“D'Andre, our tech, did an awesome job. He is professional and knowledgeable. No mess left behind.”

Kris Carlson

01-23-2026

“D’Andre is highly professional and courteous. Sierra Vista is lucky to have such a competent technician available. He’s a good dude.”

Juliet Dobosz

01-21-2026

“Very happy with D'Andre Yarborough's service call, today! He was helpful and polite!”

Dennis Crossley

01-16-2026

“DeAndre was a very courteous and professional technician. He explained exactly what he was doing, and answered all my questions. He was very thorough. I was very satisfied with his work.”

Daniel Marshall

01-14-2026

“Michel job done above and beyond five stars!”

Sarah Vinci

01-12-2026

“D’Andre is very competent. He answers all questions and gives advice to improve our system.”

Penelope Roberts

01-10-2026

“Mr Shelton spent almost the entire day (Saturday at that) fixing our hot water heater. Clear explanations and demonstrations of what was wrong and how to fix it. He was careful with our stuff and a good communicator! Also clear instructions on follow up after he leaves. One hour has the top tier of the top quality technicians in Sierra vista and Michael Shelton is up there with the best!”

Suzanne Crase

01-09-2026

“Quick response. Expert knowledge. Pleasant. Muchael”

Dan Baxter

01-09-2026

“Micheal Shelton was very professional and did a great work and excellent job explaining everything for us!!”

Sierra Vista HVAC Services You Can Count On

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.

Here For You

When You Need Us Most!

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'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.

HVAC Near Me In...

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

One Hour Heating & Air Conditioning technician talking to a customer on the phone.

Hours of Operation

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

Monday

9:00 AM - 5:00 PM

Tuesday

9:00 AM - 5:00 PM

Wednesday

9:00 AM - 5:00 PM

Thursday

9:00 AM - 5:00 PM

Friday

9:00 AM - 5:00 PM

Saturday

Closed

Sunday

Closed

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Servicing your entire home

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