• Heating & Cooling

    Tucson & Surrounding Areas

    Heating & Cooling

    Licensed, Bonded & Insured for Residential & Commercial HVAC Services
  • HVAC Installation & Repair

    Residential & Commercial

    HVAC Installation & Repair

From furnace repairs to full AC system installs, we provide expert service to keep your home or business comfortable year-round.

Our systems are designed for smooth, quiet operation so you can stay cool (or warm) without the noise.

Choose from monthly, quarterly, or annual maintenance programs designed to extend the life of your HVAC system and prevent costly breakdowns.

We help reduce energy costs with smart solutions that improve your system’s performance and efficiency.

Heating & Air Conditioning

Licensed, Bonded & Insured

At Calibrated Mechanical Systems, we believe your comfort shouldn’t come with risk. As a licensed, bonded, and insured contractor, we offer dependable heating and air conditioning services with your protection in mind. From system installations to emergency repairs, you can trust our work meets Arizona standards and is backed by decades of experience.

We also offer seasonal maintenance plans and long-term service agreements to keep your system running smoothly and your energy bills in check — all from a company that stands behind its work.

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Miguel Islas profile picture
Miguel Islas
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Ryan was great. Promptly showed up when he said he'd be there. Upon initial assessment of AC unit he let me know in great detail what the issues were and what to look for. I appreciate his attention to detail and professionalism. Unit is working great. Thank again to you and your team.
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Dana Sweeton profile picture
Dana Sweeton
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Calibrated Mechanical Systems was A+ to work with on diagnosing and fixing the AC issue we had in the middle of the summer. They came out quickly when needed and had a solution the next business day for us to get our AC working again. Thank you so much for your prompt, efficient repair of our AC issue! Highly recommend
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Matt Milazzo profile picture
Matt Milazzo
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I’ve used plenty of AC companies over the years, and Rod and the team at Calibrated Mechanical Systems really stood out. Rod kept me updated on his ETA, worked around my schedule, and was able to come out the same day. From the moment he arrived, he was personable, took the time to understand what was going on, and talked through the best way to approach the issue. What I appreciated most was the honesty. He was able to determine that the issue wasn’t anything major and never once made me feel like he was trying to sell me something I didn’t need. He gave me a few recommendations, explained everything clearly, and even figured out and fixed the mystery noise we had been dealing with. Thanks again, Rod, for being honest, professional, and making it happen around my schedule. It’s refreshing to work with someone you feel like you can trust. I’ll definitely be using Calibrated Mechanical Systems again.
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Teri Underwood profile picture
Teri Underwood
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Ryan Shirley aka A/C Shirley is the BEST! I would recommend him to anyone having AC problems. He made us feel like a priority and responded right away. When it's temps like AZ summer, 110°+, urgency is required and he did just that! We are so thankful for Ryan and is skills and knowledge on AC units. It was quick and affordable. Ryan was super friendly and personable. I would recommend Calibrated Mechanical Systems to anyone in need of AC services. They are a life saver!
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Shannon Bui profile picture
Shannon Bui
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Ryan repaired a leak in my mother’s A/C unit. She was very impressed with his professionalism, efficiency, and honesty. Will definitely be using Ryan again for any future needs.
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Sendalia Perez (Chachi) profile picture
Sendalia Perez (Chachi)
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I highly recommend Calibrated Mechanical Systems LLC! From start to finish, their customer service was outstanding. Communication was excellent throughout the entire process, they kept me informed, answered all my questions, and made sure I understood everything that was being done. Their pricing was very fair and affordable, especially considering the high quality of work they provided. The service was fast, professional, and completed on time. They arrived promptly, worked efficiently, and left everything clean when the job was finished. It’s refreshing to find a company that is honest, reliable, and truly cares about its customers. If you’re looking for exceptional service, great communication, and affordable pricing, Calibrated Mechanical Systems LLC is the company to call!
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Sally profile picture
Sally
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Punctual and responsive for a quote as well as the performed service. Finished on time and cleaned up everything. Explained everything with detail and clarity
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Ricky Williams profile picture
Ricky Williams
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I have used calibrated Mechanical for several of my properties and they do what they say they are going to do with a smile!!
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Niesje Armstrong profile picture
Niesje Armstrong
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I called calibrated mechanical systems because I own a hair salon and my AC unit went out. Other companies had quoted me only for a new AC unit. Which is super super expensive and I don’t own my building so it was an issue. Rod and Ryan came through found a way to fix my AC for swelling cold and nice. They were professional. They were quick and they were so honest I couldn’t believe it. You need a trustworthy Ac group calibrated mechanical systems is where to go. I will never go anywhere else.

Heating & Air Conditioning

Licensed, Bonded & Insured

At Calibrated Mechanical Systems, we believe your comfort shouldn’t come with risk. As a licensed, bonded, and insured contractor, we offer dependable heating and air conditioning services with your protection in mind. From system installations to emergency repairs, you can trust our work meets Arizona standards and is backed by decades of experience. We also offer seasonal maintenance plans and long-term service agreements to keep your system running smoothly and your energy bills in check — all from a company that stands behind its work.

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Air Conditioning & Heating

Air Conditioning & Heating Service

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Heater Installation

Whether you’re upgrading an outdated system or installing heat in a new build, we provide professional heater installations that are built to last. We’ll help you choose the right solution for your home or business and get it installed quickly and efficiently.

heater repair AZ

Heater Repair

If your heating system is acting up, don’t wait for the cold nights to get worse. We offer prompt, expert repairs to get your system running safely and efficiently again — no guesswork, just solid service.

Heater Maintenance

Regular maintenance keeps your heating system running longer and helps avoid costly breakdowns. Choose from monthly, quarterly, or yearly service plans designed to fit your budget and your system.

Air Conditioning Service

Air Conditioning Services

Air Conditioning Installation

We install high-efficiency air conditioning systems for both residential and commercial customers. Our licensed team ensures your system is properly sized and installed to handle Arizona’s heat — helping you stay cool and lower your energy bills.

Air Conditioning Repair

Struggling with AC issues? We offer fast diagnostics and reliable repairs to restore your comfort without delay. We service all major brands and components.

Seasonal Preventative Maintenance

Protect your investment and avoid peak-season surprises. Our seasonal AC maintenance plans help keep your system in top shape — improving performance, extending equipment life, and reducing energy costs.

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FAQ

Frequently Asked Questions

For most homes and small businesses in Arizona, a yearly AC check-up is recommended — ideally before the summer heat hits. Preventive maintenance can extend the life of your unit and help catch small issues before they become costly problems.

Yes. Calibrated Mechanical Systems is fully licensed, bonded, and insured to perform HVAC services in Arizona (ROC #360125). This provides added protection for you and ensures that every job meets professional and legal standards.

Yes. We offer seasonal and annual maintenance plans to keep your HVAC systems running efficiently all year. These plans include inspections, cleaning, and early detection of issues — helping you avoid breakdowns and unexpected repair bills.

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