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

Over 100,000,000 Sq. Feet of Completed Construction Projects

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.

    LinkedIn Company Updates

  • 5 Days Agoview on linkedin

    Irwin & Leighton, Inc.

    After WWII, rapid growth meant many of the Lower Merion established estates were being broken up and sold off, suburban Philadelphia was ripe for more development. Along East Wynnewood Road sat the last remaining parcel of land from the N. Parker Shortridge estate. Large New York based ladies retailers turned to Irwin & Leighton to build satellite stores such as Bonwit Teller, while closer to home, John Wanamaker also engaged I&L for their Wynnewood store.

  • 12 Days Agoview on linkedin

    Irwin & Leighton, Inc.

    In 1946, Sears again turned to their trusted partner, Irwin & Leighton to build a huge warehouse next to the Northeast Distribution Center on Roosevelt Blvd. This would help Sears improve the flow of merchandise that would be sold to millions of households throughout the East Coast

  • 13 Days Agoview on linkedin

    Irwin & Leighton, Inc.

    All about the #safety last week at Cabrini University as our great team continued best practices. #safetyweek2019 #110yearsandcounting

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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.