Your Trusted HVAC Experts in Palm Beach County Since 1960
Stay comfortable year-round with reliable air conditioning services backed by over 60 years of experience. We're available 24/7 when you need us most.
Experienced, Licensed Technicians
Satisfaction Guaranteed
Anytime Service – 24/7 Availability
Upfront Pricing
About Us
The Cassidy Way – Comfort You Can Count On
Since 1960, John C. Cassidy AC has been delivering quality HVAC services with a focus on customer satisfaction, professional workmanship, and long-term comfort solutions. We’re a local, family-run company that stands behind every job we do—large or small. Experience the peace of mind that comes with working with a name your neighbors trust.
Our HVAC Services
Reliable HVAC Services to Keep You Comfortable Year-Round
From fast AC repairs to expert installations and routine maintenance, we provide dependable cooling solutions backed by decades of experience.
Indoor Air Quality
Breathe cleaner, healthier air with advanced filtration, UV light systems, and dehumidifiers designed to reduce allergens and airborne contaminants.
AC Installation & Replacement
Need a new system? We install high-efficiency central air units, ductless mini-splits, and heat pumps—customized to fit your home’s needs.
Preventative Maintenance
Keep your AC system running at peak performance. Our regular tune-ups help extend the life of your equipment and lower energy bills.
Air Conditioning Repair
Fast, 24/7 AC repairs when you need them most. Our certified technicians diagnose and fix all major brands and systems quickly and efficiently.
TESTIMONIALS
Customer Reviews
"Steven was knowledgeable, fast, and friendly. He got our AC up and running in no time. Highly recommend this company!"
- Tyler S
"Great experience! Technician was prompt and fixed our issue quickly. Thank you!"
- Virginia G
"John C. Cassidy installed our units over a decade ago, and I just had them replaced. The professionalism and quality are unmatched."
- Matthew V
"We’ve been using John C. Cassidy for years. Their technicians are always courteous and do quality work. Highly recommend their maintenance program."
- jacob
Frequently Asked Questions
Find quick answers to common HVAC concerns, from emergency service to system maintenance. We're here to help—anytime.
What HVAC systems do you install?
We install central air conditioners, ductless mini-splits, and heat pumps from all major brands.
Do you provide 24/7 emergency HVAC service?
Yes! We’re available around the clock, including weekends and holidays.
What's included in a HVAC Tune-up?
Our tune-ups include system checks, cleaning, and performance testing to prevent future issues and keep your system efficient.
How can I join the Cassidy Care Club?
Just give us a call or ask during your next service. Members get annual maintenance, discounts, and priority scheduling.
Service Areas
Proudly serving Palm Beach County and Martin County, FL:
Riviera Beach
West Palm Beach
North Palm Beach
Palm Beach Gardens
Lake Worth Beach
Jupiter
Delray
Boca Raton
Trusted Quality & Service
Service Areas
Proudly serving Palm Beach County and Martin County, FL:
Riviera Beach
West Palm Beach
North Palm Beach
Palm Beach Gardens
Lake Worth Beach
Jupiter
Delray
Boca Raton
Serving You
License #s
CAC057321
CFC1429675
Hours
Monday - Friday 7:30 AM - 6:00 PM
Saturday 7:30 AM - 12:00 PM
Available 24/7 for Emergency Service
Helpful Links
Copyright 2025.John C. Cassidy All Rights Reserved.