Orndorf & Associates is an award-winning structural engineering and design firm, recognized for excellence in innovation and service. Our team expertly blends the comprehensive capabilities typical of a large firm with the customized, attentive service characteristic of a smaller practice.

Whether you are an individual with personal and family goals or the person charged with the financial goals of your organization, we are here to provide you with an array of financial and investment planning services essential to your success.
We will work hand-in-hand with you – and, if need be, your other professional advisors – to select the service that best suits your needs, then apply our investment insight and expertise to tailor the required service to your unique situation and with your specific goals in mind

We provide Structural Engineering Services that bridge the gap between design and construction while preserving our historic treasures. From everyday designs that keep jobs on track to solving site specific challenges, we design shoring and bracing, temporary access, and complex means and methods for existing and new construction.

A Masonry Restoration & Waterproofing Company

Russell Roofing is excited to reengage with and support the Preservation Alliance of Greater Philadelphia. We are proud to be a former Preservation Alliance "Grand Jury Award Winner!" for the restoration of the 125 ft. Clock Tower Turret of Murphy Hall at Arcadia University, built in 1892.

As one of the top 100 roofing companies in the United States, we pride ourselves on craftsmanship, specializing in Historical Restoration, Artisan Slate Craftsmanship, Masonry, Steeple Restoration, Copper Design, and Metal Work. We have had the privilege of working with churches and institutions including Chestnut Hill College, The Overbrook School for the Blind, and The Keystone House, now Keystone Hospice, in Wyndmoor, PA, which is listed on the National Register of Historical Places. We were also chosen to work with Kreilick Conservation, LLC on the ornamental lantern restoration at the White House in Washington, DC.

Serving the residents of historic Society Hill.

Building community by preserving history and honoring culture.

The Carpenters' Company owns and manages Carpenters' Hall, a National Historic Landmark within Independence National Historical Park that was the site of the First Continental Congress in 1774.

Wiss, Janney, Elstner Associates is a global firm of engineers, architects, and materials scientists committed to helping clients solve, repair, and avoid problems in the built world.