Delaware's Trusted AC repair and Replacement. company.

Best price on New Units.

We specialize in all aspects of heating and cooling & are dedicated to giving you fast, friendly and reliable service. Our HVAC technicians are available at any time of day. We are the most reputable ac repair Wilmington de company.

Expert & Professional Services

  • Free Quote

    Get a trusted, accurate quote for services that you need.

  • Competitive Pricing

    We make sure our services deliver outsized value to you, and competitive in the market.

  • 24-Hour Service

    Call us any time! We are here for you.

  • Licensed & Insured

    You can trust our work and our team that is licensed and insured for services.

Our Services →
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Contact Us

Our Services

As heating and cooling specialists, we are dedicated to providing you with reliable, professional service to meet all your needs. 

  • Residential and commercial sales and installation
  • Equipment retrofit and replacement
  • HRV (Heat Recovery Ventilation)
  • HVAC diagnostic and repair
  • Air Quality Control
  • Heat pumps
  • HVAC Services for all makes and models
  • Natural gas and electric furnaces
  • Gas, oil, and water furnaces
  • Central air conditioning
  • Water heaters
  • Boilers


All services

Satisfied Clients

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Expert tips

Save Money With an Energy Audit

Put a stop to your own money literally flying out the window and begin saving in the New Castle, DE area with our energy audit for businesses and homes. Old School Heating & Cooling LLC will identify all thermal and insulation moisture problems, which means large energy savings that lasts!


Brand Name HVAC Equipment

We take pride in ensuring comfort and the energy efficiency of your home or business and offer a wide selection of brand name products. Start saving on your electricity bills by calling us now!



Air Conditioning Maintenance and Repair Wilmington Delaware and New Castle County

Save money

Are you a home owner in New Castle County Delaware looking for Air Conditioning maintenance? Delaware can often have a very dry summer heat that's uncomfortable if you have a non-working AC unit.


Old School heating and cooling can service your air conditioning system before it's too late. We AC repair, AC maintenance and new AC replacement all Wilmington, Newark, Bear, Claymont, Greenville, New Castle, Middletown, and all of New Castle County. Not only do we maintain air conditioning units but we repair and replace when needed. We do our best to repair any system before we suggesting a replacement. We are a family-owned HVAC company and our reputation means everything to us. Call us to schedule your AC repair and maintenance today.

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