Who are we?

Since 1991 Williamson's Heating & Cooling has served Tucson's HVAC needs with a 100% satisfaction guarentee. We are a licenced, bonded, and family oriented company that is locally owned and operated. 

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Our customers say...

Our customers share their experiences in our video testimonials section. In Responce to our commitment to our customers, we are proud of our "A+" rating with the Better Business Breau and an Angie's List "A" rating.

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We can save you!

Visit our Savings Center to see how much we can save you. You'll find manufacturer rebates, frequent promotions, tax incentives, and air conditioners that are so efficient that cost less to run than a light bulb!

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Tucson's #1 Mitsubishi Diamond Contractor

We are proud to be designated Tucson's #1 Mitsubishi Electric Diamond Contractor. We have more Mitsubishi HVAC expretice than anyone in the western USA.

Tucson's Only Mitsubishi Electric Diamond Dealer


We are quite proud of our Mitsubishi Diamond Contractor status, but what it means to you is that there is nobody who can provide you with more competitive pricing or better service on Mitsubishi's innovative and energy efficient systems including the featured in this recent Jerry Stiller commercial that you might relate to.

For more information on Mitsubishi Electric and to learn how they may provide you comfort for as much energy as a 40 watt bulb, call us at 520-886-3229 or if you prefer, we can call you.

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