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Sean Gresin

dorena-co-founder-and office

Dorena Gresin
Owner – Scheduler


Mark Gresin
Owner – Founder


Rob Simone
Lead – Tech


Steven Ward
Residential Tech

– No Legacy is so Rich as Honesty – 




AC Repair

AC’s that are properly maintained can last a very long time but as the old saying goes – nothing lasts forever. When the time comes to replace your AC, Sun State HVAC has the highest qualifications in HVAC Services and can install most any brand available for you.

Heating Repair

Heating Repair is something that we don’t want to call for in the middle of the winter holidays.  Don’t wait to have your heating inspected and repaired if necessary. Our HVAC Services are exactly what you need to be confident that you will not suffer a breakdown when you need it least. 

HVAC Maintenance

Sun State HVAC is the forerunner in HVAC maintenance services. We have been providing our customers maintenance while others concentrated on sales teams to hard sell you their new units.  Call our HVAC Services for your HVAC Maintenance Services today!

Sun State HVAC takes 110% pride in their work and design and is very careful not to miss any of the little things that make big differences throughout the years after the job is completed. 

As you can see in the image above careful attention was taken to not only clean but actually repaint the inner closet once the old equipment was removed.   What better time to get fresh clean paint in such tight quarters as when the equipment has been removed during a replacement; and the answer is YES the water heater was removed also to make sure the whole air handling utility closet was fully prepped, painted clean and fresh.

Besides the fresh clean smelling painted surfaces, we also replaced the closet base with nice shiny new sheet metal perfectly sealed against any possible future water or moisture from ever entering the home. 

Register grills that are tattered or missing are replaced such as the one in the ceiling on this job (not shown).  All single wall gas flue pipe below the ceiling is replaced with new, double wall flue pipe on gas furnaces.   

And finally, a nice new filter grill is added as an extra convenience to the customer to help make filter changing a breeze and then the complete system is double taped and triple sealed with a special high-quality rubber impregnated sealant and triple checked for any possible air or moisture leaks to make sure you are squeezing every possible drop of efficiency out of your new HVAC air conditioning and heating system’s energy usage dollar.

When it comes to quality, integrity and just plain Honesty, Sun State HVAC is impossible to beat.  That is why our motto has been “Where Honesty Rules!” since 1979.

HVAC Replacement

HVAC Services can not be complete without the ability to replace AC’s that are old, outdated or broken beyond practical replacement costs. The Sun State HVAC Services can offer most brands for replacement and will install your unit CORRECTLY and sized to work optimally for your application.  

Refrigeration Services

Sun State HVAC Services has been offering Refrigeration Services to Valley Restaurants for 40 years and offers multiple plans to suit most any business requiring Refrigeration.   Call US to request a maintenance quote today!  

Restaurant HVAC

Restaurant Service has been the backbone of our company since inception.  Sun State HVAC Services was born out from a background in restaurant businesses which makes us a particularly suited HVAC-R vendor to call for your Restaurant Refrigeration and Air Conditioning needs.   

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With Sun State HVAC you never have to worry that something might be missed.


HVAC On Steroids

HVAC Services on steroids is what you'll receive when you call Sun State HVAC for your HVAC service.


It's your HVAC!

Is your HVAC hanging out of balance? Sun State HVAC knows how to fine tune your Phoenix Arizona system. Their Natives at it!


A box of tools?

It takes more than a box of tools to get the most out of your HVAC system... It also takes experience and BRAINS!

Don't be like Maxine!
Get your AC Serviced today!

Maxine Says…


“Where Honesty Rules!” and always will! 

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