William A. J. Shaeffer's Sons, Inc.

Phone: 610-962-5500

420B Drew Court | King of Prussia, PA 19406

 Fax: 610-962-5533

Welcome To


We are a full service Electrical Construction firm specializing in the Healthcare and Pharmaceutical Industries.  We also provide electrical construction services for Universities, Hotels, Office Buildings and Industrial customers throughout the greater Philadelphia Metro area.  We provide electrical construction management, design/build, and engineering services.


We are regarded as one of the premiere electrical construction firms in the Philadelphia area based on our quality work and commitment to our customer’s needs, schedules, and budgets.  Our market share allows us to provide cost effective, quality installations on various size projects; ranging from a few thousand dollars to over 50 million dollars.

Long-term Customer Relationships Are The

Ultimate Judge Of Workmanship!

Long-term Customer Relationships Are The

Ultimate Judge Of Workmanship!

View Our



The Pavilion at The University of Pennsylvania is a $1.5 billion new hospital on Penn Medicine’s West Philadelphia campus. The Pavilion will house 500 private patient rooms and 47 operating rooms in a 1.5 million square foot, 17-story facility on the former site of Penn Tower; across the street from the Hospital of the University of Pennsylvania and adjacent to the medical campus’s outpatient hub, the Perelman Center for Advanced Medicine.  It will also be connected to University City train station via a network of public bridges and walkways.  Anticipated completion is 2021.


The Pavilion is being designed and constructed through an Integrated Project Delivery (IPD) Model.  Shaeffer Electric has been hired as the electrical Key Trade Subcontractor, and we are working with architects Foster + Partners and HDR, engineering designer BR+A, construction managers L.F. Driscoll and Balfour Beatty, mechanical contractor Southland Industries, and Penn Medicine’s clinical and facilities experts from design through delivery.  The IPD process involves collaboration with all firms from the start of design through construction completion, in order to deliver an outstanding building while optimizing construction efficiency and cost.  We are honored and excited to be a part of this groundbreaking project.


Comcast Innovation and Technology Center is a $1.2 billion skyscraper that will span the 1800 block of Arch street.  It will be a 59-story structure, developed by the Comcast Corporation and Liberty Property Trust, that will expand Comcast’s global headquarters and become the new home for NBC 10, Telemundo, and the Four Seasons Philadelphia Hotel.  When complete, the tower is anticipated to claim its place as the tallest building in the United States outside of New York and Chicago.  Anticipated completion is 2019.


Shaeffer Electric will be providing interior power and lighting for the NBC10 workspace and studios, interior power and lighting for a number of the workplace floors, the security and access control system, and the exterior building lighting.  We are excited to contribute to the innovative building and the newest part of the Philadelphia skyline.



The St. Christopher’s Hospital for Children expansion was a $110 Million dollar project led by Torcon Construction.  In included adding four floors (135,000 sq.ft.) and a critical care tower to the existing hospital campus.  The tower will consists of 50 new critical care beds,  60 Level III NICU beds, and other advanced care spaces.  We are proud to have been part of a project that not only incorporates state of the art medical technology but also had a major impact on the City of Philadelphia and surrounding communities.  This project was completed in 2015.




The University of Pennsylvania, Mod 7 was a multi-million dollar chiller expansion at the University of Pennsylvania.  It was a major capital improvement to the University’s building infrastructure.  We were proud to be the electrical contractor on this project, led by the LF. Driscoll Company.   This project was completed successfully in the Summer of 2016.



Priding Ourselves On


Shaeffer Electric was founded with the goals of designing and building projects that would stand the test of time and focusing on ensuring customer satisfaction and confidence in the company’s work.  Since the company’s inception over 100 years ago, quality and technology demands certainly have grown but these ideals can still be found in everything we do.  We specialize in institutional, commercial and healthcare electrical construction. We employ an exceptional group of skilled, experienced IBEW electricians.

420B Drew Court

King of Prussia, PA 19406

Designed & Produced by: Total Web Company

Phone: 610-962-5500

 Fax: 610-962-5533