Top AC Installation, AC Repair, and HVAC Services in Downingtown, PA

Member of the BBB | Competitive Pricing | Warranties Available

Member of the BBB
Competitive Pricing
Warranties Available

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When it comes to reliable air conditioning and HVAC services in Downingtown, PA, J. Halligan & Sons Heating and Air Conditioning is the name homeowners trust. Whether you need a fast AC repair, a brand-new installation, or complete HVAC system maintenance, our experienced team is ready to keep your home comfortable all year long.

Stay Cool, Breathe Easy — All Summer Long

When summer temperatures rise in Downingtown, you need an AC system you can depend on. At J. Halligan & Sons Heating and Air Conditioning, we specialize in fast, affordable air conditioning solutions that prioritize your comfort, energy efficiency, and long-term reliability. From new installations to emergency repairs, we bring the same dedication to quality and customer service that our community has trusted for decades.


Whether you're upgrading your AC system or fixing a sudden breakdown, our licensed technicians are here to help—on time and on budget.

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Our Downingtown AC and HVAC Services Include:

  • AC Installation: Get expert installation of high-efficiency air conditioning systems tailored to your home’s size and needs.
  • AC Repair: Fast, professional repairs to get your cooling system running smoothly again, no matter the make or model.
  • HVAC System Maintenance: Prevent breakdowns and improve energy efficiency with regular system checkups and tune-ups.
  • Emergency AC Services: 24/7 emergency repair service available to keep you cool when you need it most.
  • Indoor Air Quality Solutions: Improve your home’s air quality with filtration systems, humidifiers, and ventilation upgrades.
  • Energy-Efficient Upgrades: Save money with modern, energy-saving air conditioning and heating systems.

At J. Halligan & Sons Heating and Air Conditioning, we take pride in our fast response times, honest pricing, and high-quality workmanship. Your comfort is always our top priority.

📞 Need AC or HVAC Help in Downingtown?

Call (610) 228-2384 today to schedule your AC installation, repair, or HVAC service!

Full-Service HVAC Solutions for Year-Round Comfort

Beyond heating, our HVAC services ensure that your entire system operates efficiently throughout the year. From air conditioning repairs to seasonal maintenance, our technicians have you covered.

  • Comprehensive HVAC System Maintenance
    Regular maintenance keeps your system efficient, reduces energy bills, and extends its lifespan. We offer tailored HVAC service agreements for worry-free upkeep year-round.
  • Energy Efficiency Upgrades
    Considering a transition to cleaner, more energy-efficient heating? We specialize in upgrading systems to natural gas or oil, offering Downingtown homeowners an eco-friendly solution.

Proudly Serving Downingtown, PA

At J. Halligan & Sons Heating and Air Conditioning, we’re proud to provide reliable AC, heating, and HVAC services to homeowners and businesses in Downingtown. Whether it’s a new installation, fast repairs, or preventative maintenance, we deliver high-efficiency solutions designed for year-round comfort. Our experienced technicians understand the unique needs of Chester County homes and are committed to exceptional service with every visit.



About Downingtown, PA

Nestled in Chester County, Downingtown is a vibrant and growing community known for its historic charm, scenic parks, and family-friendly neighborhoods. Its mix of older homes and modern developments creates a wide variety of HVAC needs—from system upgrades to energy-saving retrofits.

Notable landmarks and resources in Downingtown include:

  • Struble Trail – A beautiful multi-use trail perfect for walking, running, and cycling along the Brandywine Creek.
  • Kerr Park – A central gathering place offering picnic areas, a playground, and seasonal events.
  • Downingtown STEM Academy – A top-ranked public school focused on science, technology, engineering, and math.


From urgent AC repairs to complete HVAC system installations, J. Halligan & Sons is Downingtown’s trusted choice for professional, efficient service. Contact us today to schedule an appointment!

Contact Us Today

Don’t let the summer heat catch you unprepared. Schedule your AC installation, repair, or HVAC service with J. Halligan & Sons. Call (610) 228-2384 or fill out our contact form for a free consultation!

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Mark did great work on my house at a very reasonable price. I would highly suggest using him for any HVAC work you need done!

- Andy Connor

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J. Halligan & Sons Heating and Air Conditioning