Knisely & Sons, Inc. is Central Pennsylvania’s premier full-service, heating, cooling, plumbing, electrical, refrigeration and restaurant equipment installation and service contracting firm.

Our wide variety of services include design, installation, service, repair and maintenance of all types of residential, commercial, industrial and institutional systems and equipment.

Heating and cooling services include all types of forced air systems, furnaces, heat pumps, split systems, geothermal, packaged units, rooftops, unit heaters, space heaters, fan-coil units, ductless and through-wall units, cooling towers and chillers, air balancing, ventilation, air purification, electronic air cleaners and filtration, fresh air makeup units, air exchangers, humidifiers and dehumidifiers, zone control systems, fireplaces, chimney liners, infrared, hot water and steam boilers, radiant, attic ventilators, carbon monoxide detectors, combustion analysis, flame safeguard controls, ductwork and sheet metal fabrication, registers and grilles, pneumatics, hydronic specialties, tune-ups, service agreements, and more. All fuel types and equipment sizes of most brands and manufacturers are available.

Plumbing services include drain line and water supply piping, kitchen and bath fixtures and faucets, laundry sinks, washroom accessories, garbage disposers, water heaters, drinking fountains, pool and spa heaters, well pumps and tanks, water analysis, water conditioners and softeners, water purification and filtering systems, fittings and valves, process piping, pneumatics and hydraulics, gas piping, pressure regulators, septic systems, sump and sewage pumps, drain cleaning, trenching and boring, backhoe service, and more.

Electrical services include residential, commercial and industrial wiring, service entrance equipment, circuit breakers and panelboards, distribution equipment and switchgear, conduit and cable tray, data and communications cabling, motors and motor control, timers and photo control, motion sensors, smoke and fire detection, industrial automation and process control, lighting and lamps, power poles and raceway systems, emergency lighting, emergency generators, motion sensors, and more.

Refrigeration services include residential, commercial and industrial air conditioning, walk-in coolers and freezers, refrigerated cabinets and reach-ins, condensing units, evaporators, unit coolers, spot coolers, compressors, system charging, refrigerant retrofitting, refrigerant reclaim, leak detection, process cooling, chillers, temperature control, ice machines, soda racks, prep tables, and more.

Commercial kitchen and restaurant services include all types and sizes of refrigerators and freezers, deli and display cases, beverage coolers, soda dispensers, ice machines, prep tables, salad bars, ovens and ranges, food warmers, steam tables, proofing cabinets, fryers, broilers, grills, pizza ovens, rice cookers, toasters, coffee brewers, slicers, mixers and blenders, NSF sinks and tables, food waste disposers, dishwashers, exhaust and vent hoods, plumbing specialties, drain maintenance, degreasers, chemicals, janitorial supplies, washroom accessories, and more.