We Build HistoryTM

Since its founding in 1909, I&L has provided quality construction services and has established a standard for performance with integrity that is the foundation of the company’s relationships with customers, architects and engineers, subcontractors and employees. A tradition of accomplishment and a spirit of commitment drive the firm’s operations into the future.

Completed Over 5.5 Million Sq. Feet of Retail/Hospitality Space in the last 15 years

First Retail Project Built in 1954

Our Sector Knowledge

Select Experience

The projects shown are a select few showing Irwin & Leighton's depth of experience and knowledge within the Commercial Construction industry.

Project Experience
New Outpatient Facility, Capital Health System

New Outpatient Facility, Capital Health System

Healthcare & Senior Living, Select Experience

Tenant Fit-Out, Main Event Entertainment

Tenant Fit-Out, Main Event Entertainment

Retail/Hospitality, Select Experience

New Store, Target Corporation

New Store, Target Corporation

Retail/Hospitality, Select Experience

Meet Our Team

As an employee owned, privately held business, we hire the best, brightest and most talented individuals in the business. We pride ourselves on our corporate culture, passion for success and our drive to make every customer our next 50 year customer.

Bringing more value to your vision.
Bold thinking begins where conventional thinking ends.

Latest News

The latest news from Irwin & Leighton including industry trends, the best construction blogs and publications and updates on our latest project news.

Over a three year period from 2007-2010, @IrwinLeightonCM completed major renovations of the Holder, Hamilton, Madison Hall complex at @Princeton , which included the restoration of the Memorial Tower. #buildinghistorysince1909

The phased renovation of @saintjosephs Science Ctr. began in 2003. The project consisted of interior renovations of labs, classrooms & offices for many departments. Along with the City Ave Resi Halls project was a major addition to the campus, all built by @IrwinLeightonCM

During the 90's Philadelphia experienced unprecented growth and expansion in the field of medicine and Irwin & Leighton responded by servicing clients like @ChildrensPhila & @capitalhealthnj #ourfirst110years

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Work With Us

As a leading builder, Irwin & Leighton partners with the top subcontractors who have a prime focus on safety and performance.