About Hefferon Heating & Cooling LLC

Hefferon Heating & Cooling LLC is a reputable company that provides exceptional service. The team, led by Ernie, is known for being smart, hardworking, and great partners across design, installation, and service. They take the time to understand unique project needs, blending historic renovation and new construction to deliver efficient and wonderful indoor climates. Customers appreciate the honesty and professionalism of the company, especially in the Danbury area, feeling confident they receive fair pricing and clear communication before any service begins. The office staff and installers are always pleasant, answering every question and providing thoughtful approaches to ensure quality work tailored to customers' needs. Customers have praised the company's quick response to service calls, with team members ensuring that issues are resolved promptly, demonstrating their commitment to excellent customer care.

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Reviews for Hefferon Heating & Cooling LLC

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  • Aug 2026

    Dear Hefferon heating,
    My A.C. install is complete. It’s a couple of hours in. I couldn’t be happier and more comfortable. Admittedly the weather isn’t terribly hot as season is ending. I feel compelled to sing the praises of your wonderfully professional, friendly, efficient, respectful and hard working. Hefferon Heating and Cooling is extremely fortunate to have such amazing employees. Thank you Lee, Fabian, Chris, Dillon, Matt, for an excellent install experience. Your all amazing
    Karine

  • Aug 2026

    Excellent experience. Installers were professional, pleasant and thorough in completing work and explaining unit. Understanding of my time commitments which was appreciated. I would gladly recommend your company Ernie. It was a pleasure to work with you and Dina and Christina were also delightful. Thank you.

  • Aug 2026

    I spoke to Dina at the office and she was very supportive. I was very upset because my former service provider had cancelled multiple times, and even though Dina said you had finished your seasonal service she got me in for an appointment within 48 hours from my call. Chris was our technician and was extremely polite, knowledgeable, and fixed a couple of issues to prevent later problems. I would recommend Chris again and plan on using Hefferon for all my HVAC annual service and issues beyond in the future. Thank you so much!

Hours

Monday: Open 24 hoursTuesday: Open 24 hoursWednesday: Open 24 hoursThursday: Open 24 hoursFriday: Open 24 hoursSaturday: Open 24 hoursSunday: Open 24 hours

Tips

 online estimates  on-site services accepts credit cards

Location

37A Padanaram Road, Danbury

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