Contact Us

717-884-9808
HarrisburgArchitects@gmail.com
Serving PA and NJ


Allison Ong Shreffler, Architect + Designer


alisonAllison Ong Shreffler was born and raised in Northern New Jersey, and attended the Pennsylvania State University where she received her Baccalaureate Degrees in Science and Architecture. She interned at a mid-sized architectural firm in North Jersey and was hired full time upon graduation. She was the design lead for many projects early in her career, which included residential, commercial, religious, and transportation projects. She was promoted as the Project Manager and Architect for multiple projects upon receipt of her Professional license.

In 1995, Allison founded AOS Architect where she provided architecture, interior design, and construction administration services to both residential and commercial clients. She simultaneously co-founded a Design/Build company servicing the restaurant and hospitality industry. Her designs and vision were instrumental in elevating the company’s full service reputation by providing a “signature” architectural brand for each establishment.

Allison participated in many community organizations and was appointed to the planning board by the Mayor of River Edge for several years. Her recommendations for appropriate planning, zoning, and aesthetic issues were sought after and requested throughout the community.

Allison’s expertise as a Professional Architect and interior designer encompasses the many facets of architecture, design, and construction. She provides her clients with designs that are delicate balance of aesthetics, function, cost, constructability, and sustainability.

In 2008, she relocated with her family to Central Pennsylvania and was the Principal Architect in Charge at an Architecture/Civil/Survey Engineering firm for several years before reestablishing her own architectural and interior design practice in Central PA. Here, she continues to serve her NJ and PA clients as well donating her time to speak and participate in Junior Achievement Symposium and Junior Achievement STEM mentorship programs, is a contributing editor for Central Keystone Living Magazine, and is an active member of the Home Builders Association of Metropolitan Harrisburg.


Rebecca “Becky” Wirth, Design Assistant


becky_harrisburgBecky graduated from the Art Institute of York, and majored in Interior Design. Becky interned with the firm and is now a part of the Interior Design team. The Mount Joy native is passionate about design, from cool modern to rustic modern and anything in between. Becky brings a fresh perspective to the firm.