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Residential HVAC

Our History

Since 1929, Deiter Brothers has been provided comfort, reliability, and a friendly face to Lehigh Valley families and businesses. Deiter Brothers is a licensed and certified contractor specializing in heating, air conditioning, and HVAC installation, maintenance, and equipment.

We provide our heating, air conditioning, and HVAC services to residential, commercial and industrial clients as well as custom-home builders, architects, and engineers. All our work in Bethlehem PA, Allentown PA, Easton PA, and surrounding Lehigh Valley and NJ areas is guaranteed for one (1) year (parts and labor) and longer on certain items, depending on manufacturer's warranty.

Our Promise

Each of our clients has different needs when it comes to indoor comfort. Therefore, we believe flexibility, imagination, and listening to clients is essential to any successful HVAC project. To ensure your satisfaction, your specially assigned Comfort Advisor will walk you through each stage of the project, step-by-step.

We install and service all major brand heating and air conditioning equipment, including our recommended lines, the Lennox line of heating and air conditioning and Buderus boilers, room control systems, and solar paneling. Click here for a short list of some additional equipment we install and service in the Lehigh Valley and surrounding areas of PA and NJ.

Deiter Bros. also handles many energy-efficient add-on items, such as Hot Water Heaters (Electric, Oil-fired, or Gas), Humidifiers, Energy Recovery Ventilators (ERV), Electrostatic Air Filters, and Energy Saving Set-Back Thermostats for your home or business.

Our Projects

We have provided HVAC solutions and innovations for a broad range of structures and environmental challenges, including:

Not sure if it is time to replace your comfort system? Click here to use our Repair vs. Replacement Calculator.

Wondering how much a new comfort system can save you each month on heating and cooling? Click here to use our Energy Savings Calculator.

To schedule an appointment with one of our Comfort Advisors, please schedule an appointment online or call us at 1-800-DEITER-1.

Low Price Guarantee

Trust our LOW-COST GUARANTEE!

Lennox Bosch Gas, Oil-Fired & Condensing Boilers Rinnai Mitsubishi
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