In-Shop Repairs

Our Repair Shop

Our repair shop sees more than 1,200 units each year.  We specialize in PTAC and Water Source Heat Pump shop repairs, but we can fix anything that comes in the door. In the first image you can see our test rack for Whalen water source heat pumps.  The second picture is the mixing valves we use to optimize our diagnoses and repairs.

50 years of test equipment

This may not look like much, but this is our ability to diagnose and repair units that are 35 years old.  We have collected and maintained hoods, control sections and blower sections from dozens of legacy PTAC models.  This is just one rack of the test equipment inventory.

$790 P/W

Old School Diagnosis

Pappy has been with us for more than 20 years.  He had previously run the local Sears repair team of 30 technicians.  Pap is one of the few technicians who can reapir legacy PC boards.  He is surrounded by computers and monitors, but he likes to use hard copies from our extensive product repair library with more than 100,000 pages.

Everyone helps out

Our field technicians all start out in the shop.  That way, when we have a surge of shop work or a lull in field work, field technicians help ensure the most timely repairs of units in the shop.

H&H Service Co. Inc.

Central PA's most highly-trained & experienced HVAC expert


Our technicians are factory-trained and factory-certified in more than 30 product lines.  We provide residential, commercial, and government turn-key installations of: heating (oil, gas, steam, hot-water, & electric), air conditioning, heat pump, Packaged Terminal Air Conditioning (PTAC), water heater, geothermal, ductless mini-split, boiler, humidity control, and air purification systems.  We provide 24-hour Emergency repair services, field repairs, in shop repairs, HVAC Scheduled Preventative Maintenance Agreements, and cleanings.  We have a warehouse stocked with equipment and parts, and we can order virtually any brand or part.

Send us a message

Tel: 717-796-2190


Fax: 717-796-2193

© 2017 by H&H Service Company, Inc.


4510 Westport Drive

Mechanicsburg, PA 17055

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