We maintain, repair and replace all brands of air conditioning systems

D&H AC provides Tucson homes and businesses with air conditioning repair, A/C maintenance and A/C installation services since 1959. Our NATE-certified technicians are trained to repair air conditioning systems of any brand and any age, in a rush and all year long. When your system needs repair, we can perform an audit of what went wrong, so that the true cause of the failure be accurately detected and fixed. This saves you money from further repairs. If you call us to enquire about a new A/C installation, we will automatically perform an audit of your current air conditioning system and its usage to determine with you what AC system is best-suited to your needs over 3, 5, 10 and 12 years. Lastly, we provide top air conditioning maintenance services, with NATE-certified technicians and the Daikin Comfort Pro (TM) ultra-selective label.

When it’s time for heating and heaters…

We don’t often think about furnace and heater maintenance and installation in Southern Arizona because they are minimally used most of the year.  If you already have endured a local winter however, then you know that freezing occurs and optimum furnace and heater operation is essential.  Our NATE-certified technicians are highly trained on the many differing types/brands of heater and furnace equipment.  Whether your furnace is forty-five years old or brand-new, our team will use all its knowledge and experience to help increase its longevity. And if it is time to replace your unit, ask our service technicians or Comfort Advisors about possible lifetime warranties on heat exchangers. Click here to find out more about our gas heating furnaces.

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We always strive for improvement and we also appreciate praise. Reviews are your voice to tell us how we did. Please take a moment to cast your vote on any one of these four websites…





Keep your unit tuned up!  Prevent costly repairs with proper maintenance.  Having the proper maintenance plan also ensures preservation of your manufacturer’s warranty.

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Our technicians can fix the problem.  Regardless of when your unit was installed and who installed it.  All our technicians are NATE certified, the highest level of qualification in our industry.

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Tired of being nickel-and-dimed by your old A/C unit?  When you call for your free in-home estimate, ask about our 12-year financing, 12-year equipment warranties.  Or about our ‘no-payment, no-interest for 18 months’ plan.

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We are dedicated to providing our customers with outstanding service and expertise.  We value our customers’ opinions to know when our processes are working properly and as learning experiences to improve when necessary.

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Receive up to $2000 in discounts and rebates toward the purchase and installation of a new Premier Home Comfort System!

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Brett Wright, President


years in business


satisfied clients


technicians on call



Diagnostic of an A/C unit – The Real Deal – Part II

In this second clip of the series on the repair of an Amana Gas Package unit, our Nate-Certified Service Professional quickly identifies the parts that need replacement in this rooftop unit. Jacob goes quickly through a checklist of electrical tests designed…


Inspection of an Air Conditioning Unit – The Real Deal – Part 1

In this brief first part of a 4-part real-time video, our NATE-Certified Service Professional introduces his mission: do a complete evaluation of all electrical components of that air conditioning unit, including the motors, compressor, refrigerant levels, temperatures, check and change the filters, and clean the condenser coils.


Warranties and maintenance

Brett underscores the importance of keeping your A/C equipment maintained by a licensed A/C contractor to avoid voiding your warranties.



Air Conditioning Maintenance, Repair and Installation Experts in Tucson Since 1959


D & H Air Conditioning & Heating
AC repair, maintenance and installation

3629 N Oracle Road
Tucson, AZ 85705

Fax: (520) 887-6204

Office Hours of Operation:

7:00 A.M. – 5:30 P.M. (Summer Office Hours)

Service Hours:
Mon. – Sun.: 24 hours

AZ ROC# C-79 #070188 / C-39 #076494


Free estimates:
reception [at] dandhac.com

Service Requests:
service [at] dandhac.com

Service Manager:
servicemgr [at] dandhac.com

General information:
reception [at] dandhac.com

Our NATE-certified air conditioning technicians serve homes and businesses in the following cities: Tucson, Casas Adobes, Oro Valley, Marana, Vail, Green Valley, Saddlebrooke, Tubac, Sahuarita, Benson, Catalina, Oracle, San Manuel, Mammoth, Rio Rico, Nogales, Sonoita, Patagonia, Huachuca City, Sierra Vista,  Tombstone, Eloy, Arizona City, Casa Grande, Florence and communities between.

Our A/C maintenance programs are designed to ensure your manufacturer’s warranties are preserved and your air conditioning system runs efficiently.

Our service technicians are North American Technician Excellence (NATE) certified. This certification gives you access to service technicians with verifiable knowledge of: air conditioning, air distribution, heat pumps, gas heating, oil heating, hydronics gas, hydronics oil, light commercial refrigeration and commercial refrigeration.  The professionalism of our technicians is continuously developed through training programs focusing on customer service.  Our commitment to client service, professional training and quality control procedures has been a cornerstone of the success enjoyed in Tucson and Southern Arizona by D&H Air Conditioning for over 56 years.