Williams Service Company remains OPEN and ready to serve during this crucial time.
Please contact us if you are in need of HVAC service.
(717) 755-2902

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Check Out Our Money-Saving Residential Service Plans:

Furnace Repair in York PA

Heating Systems

Williams Service Company in York PA can help save you money by replacing your existing equipment with new high efficiency equipment.
Air Conditioning in York PA

Air Conditioning Systems

Let Williams Service Company install a quality air conditioning system in your home and save with a maintenance agreement.
Refrigeration in York PA

Refrigeration Systems

Our commercial HVAC services cover heating systems, air conditioning systems, and ventilation systems to keep your equipment operating efficiently.
5 Thermostat Problems and How to Solve Them

5 Thermostat Problems and How to Solve Them

Does your thermostat give you frequent problems? I'm not talking about fighting over it with your spouse or kids. I'm talking about mechanical problems or getting information. Thermostats play a role in how high your heating or cooling bill will be and you want to do...

REDUCE VIRUSES with an Air Purifier

REDUCE VIRUSES with an Air Purifier

HALO-LED™ Whole Home In-Duct Air Purifier The HALO-LED™ is the industry’s first LED in-duct, whole home air purification system that is both mercury free and zero ozone compliant. The HALO-LED™ proactively treats every cubic inch of air conditioned space, reducing...

Commercial & Residential Installation & Service

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The Williams Service Company’s Difference

Friendly • Proficient • Reliable

Williams Service Company’s dedication to extraordinary service is what sets us apart from our competition. We accomplish this through a unique combination of a highly trained workforce and superior equipment. Each and every one of Williams Service Company’s technicians is EPA certified and cross-trained in HVAC and refrigeration.

Serving South Central Pennsylvania since 1979, our extensive fleet of GPS guided service vehicles is fully outfitted with modern, well-maintained equipment, capable of handling any service call. The result is an unmatched diagnosis rate. We find the problem and we solve it…quickly and efficiently.