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  • The Duffey Difference
  • Heating & Cooling Installations
    • Benefits of New Heating Equipment
    • New Heating Equipment
      • Furnaces
      • Boilers
      • Steam Systems
      • Hot Water Heaters
      • Geothermal
    • Benefits of New Cooling Equipment
    • New Cooling Equipment
      • Central Air Conditioning
      • Ductless Mini Splits
      • Heat Pumps
  • Maintenance & Repair
    • Benefits of a Maintenance Plan
    • Maintenance Plan Options
    • Annual Tune-up
  • Heating Oil
    • Benefits of Heating Oil
    • Heating Oil Delivery
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07 May Maximize Your AC Efficiency: Top Tips to Stay Cool and Lower Your Energy Bills

Posted at 10:43h in Efficiency Tips by kateduffeyAdmin 0 Comments
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As the summer heat rolls in, your air conditioning system is working overtime to keep your home comfortable. But if your cooling system isn’t running efficiently, it could be driving up your energy bills—and leaving parts of your home feeling less than refreshing. At D.E. Duffey...

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09 Apr Important Information for All Air Conditioning Equipment: Big Changes Are Coming in 2025

Posted at 16:10h in AC Update by kateduffeyAdmin 0 Comments
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If you're thinking about replacing or repairing your air conditioning system, it's important to be aware of a major industry update that could impact your decision. As of January 1, 2025, the EPA has mandated that all new air conditioning equipment must use R-454B refrigerant. This...

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28 Mar Thinking About a New AC System? Here’s Why Spring Is the Best Time to Upgrade Your Cooling Equipment

Posted at 11:57h in Cooling Equipment by kateduffeyAdmin 0 Comments
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As temperatures start to rise, spring is the perfect season to think ahead and upgrade your cooling system before summer heatwaves arrive. If your current air conditioner is outdated, noisy, or simply not performing the way it used to, it may be time to consider...

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13 Mar Get Ready for Warmer Weather: Schedule Your AC Tune-Up Today!

Posted at 10:33h in Cooling Equipment by kateduffeyAdmin 0 Comments
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As the days get longer and temperatures start to rise, now is the perfect time to ensure your air conditioning system is ready for the warm months ahead. A professional AC tune-up can improve efficiency, prevent unexpected breakdowns, and keep your home cool and comfortable...

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20 Jan Careers at D.E. Duffey & Sons: Join Our Team!

Posted at 10:40h in Careers at D.E. Duffey by kateduffeyAdmin 0 Comments
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Are you looking for a workplace that values your skills, encourages your growth, and makes you feel like part of a family? At D.E. Duffey & Sons, we’re proud to deliver exceptional service to our customers every day—and we know that wouldn’t be possible without...

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27 Sep 5 Signs Your Furnace Needs a Tune-Up Before Winter

Posted at 13:43h in Tune Up by kateduffeyAdmin 0 Comments
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As the chill of winter approaches, ensuring that your furnace is in optimal working condition is essential for keeping your home warm and cozy. Regular furnace maintenance not only prevents breakdowns during the coldest months but also helps improve your system’s energy efficiency, saving you...

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13 Jun Signs Your HVAC System Needs Repair or Replacement

Posted at 01:27h in HVAC System by kateduffeyAdmin 0 Comments
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Your HVAC system is crucial for maintaining comfort in your home year-round. However, like any mechanical system, it can develop issues over time. Recognizing the signs that your HVAC system needs repair or replacement can save you from unexpected breakdowns and costly repairs. Here are...

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