Consulting firm specializing in leak detection, moisture intrusion diagnostics, thermal imaging, masonry restoration, foundation moisture solutions, sealant applications, and building-envelope repairs for older and historic properties throughout PA, NJ, and DE.

Creative Structural Engineers striving to provide the most in-depth analysis to support each building's unique architectural expression and purpose.

Residential construction and renovation on the Main Line and Philadelphia Region for over 25 years

Palmer Masonry Restoration specializes in restoring brick and stone structures as well as waterproofing and structural repairs.

Philly Office Retail specializes in leasing spaces to businesses and non-profit organizations looking for the right site and situation.

Powers & Company, Inc. is a national consulting firm specializing in the preservation and rehabilitation of historic structures. Common across all projects is our ability to problem-solve and craft practical solutions that are sensitive to preservation and development issues.

Preservation & Decorative Arts (PDA)is a Philadelphia based, female-owned studio founded by Jacintha Kruc. We specialize in conservation and restoration of historic spaces, murals, painted and decorative surfaces, and woodwork; replication and application of authentic historic finishes; creation of custom murals and hand-painted decorative art; execution of traditional faux finishes, gilding and plasterwork; and conservation of antique clock dials and paintings. Employing time honored techniques and scientific analysis, we deliver authentic, reversible, and enduring results.

Masonry repair contractor specializing in the restoration and preservation of historic structures

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.