AC Tune-Up in Phoenix AZ

Prevent Breakdowns • Boost Efficiency • Extend System Life

Do You Hate Contracts?
So Do We.

What Makes Our AC Tune-Up Different

It's Not a Sales Pitch. It's Real Maintenance.

Real maintenance, no sales pitches
Experienced technicians, not trainees
✅ No upsells, no pressure
✅ Just Real Honest HVAC Maintenance

No Contracts to Sign"

It’s Maintenance Time”

Quick Contact - We'll Call You Back Promptly

Join our “It’s Maintenance Time” Email List now — and receive a quick heads-up when
it’s time for your AC tune-up no commitments, no hassle, just good HVAC maintenance.

Why Choose Sun State HVAC for Your AC Tune-up?

"Where Honesty Rules!"

When you choose a company that specializes exclusively in HVAC and refrigeration, you’re choosing unmatched expertise. At Sun State HVAC, HVAC & R is all we do — and we do it exceptionally well. So when you schedule an AC tune-up, you’ll get a skilled, experienced HVAC technician who knows air conditioner systems and repair inside and out — especially in Phoenix, Arizona — not a handyman, plumber, water softener installer, or ceiling fan salesperson.

Why Specialization Matters:
Choosing a Company That's AC-Focused
For Your AC Tune Up Needs

Why Specialization Matters:
Choosing a Company That's
AC-Focused For Your
AC Tune Up Needs

Since 1979, Sun State HVAC has been a trusted name in HVAC maintenance in Phoenix, leading the way in preventive care long before it became standard industry practice. We don’t treat maintenance as a sales opportunity — we treat it as the essential service it is. Our tune-ups are designed to extend system life, boost energy efficiency, and prevent costly repairs before they start.

Unlike big-name companies that push upgrades and up-sells, we focus on real maintenance with real results. Our honest approach means no pressure, no gimmicks, and no unnecessary services — just transparent, reliable HVAC care backed by over four decades of experience.

At Sun State HVAC, our motto says it all: “Where Honesty Rules!” We take pride in helping you make informed, confident decisions about your cooling system — because we believe that trust is earned through integrity and quality service, not sales tactics.

Let's Get You Comfortable!

Meet the Team

Real People. Real Technicians. No Sales Reps.

Meet the team that makes Sun State HVAC the most trusted name in honest air conditioning service in Phoenix.

sean-gresin-technician
Sean Gresin
Owner/Partner/Tech
mark-gresin-sun-state-hvac-founder-and-senior-tech
Mark Gresin
Founder
Madi answers the phone, schedules and is general office manager
Madi Gresin
Office – Phone – Scheduling – Good Cook Too!
dorena-office-payroll-books-manager-owner
Dorena Gresin
Office Manager
robert-simone-hvac-repair-services-technician
Rob Simone
Lead Tech
steve-hvac-repair-services-steve-residential-tech
Steven Ward
Lead Tech
sean-gresin-technician
Sean Gresin
Owner/Partner/Tech
mark-gresin-sun-state-hvac-founder-and-senior-tech
Mark Gresin
Founder
Madi answers the phone, schedules and is general office manager
Madi Gresin
Office – Phone – Scheduling – Good Cook Too!
dorena-office-payroll-books-manager-owner
Dorena Gresin
Office Manager
robert-simone-hvac-repair-services-technician
Rob Simone
Lead Tech
steve-hvac-repair-services-steve-residential-tech
Steven Ward
Lead Tech

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