Building History since 1909

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 22,000 Beds on College Campuses

Project Experience

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, Medical Office Building, 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

New Assisted Living Facility, The Francis E. Parker Memorial Home

New Assisted Living Facility, The Francis E. Parker Memorial Home

Healthcare & Senior Living, Select Experience, Senior Living

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.

Contribute towards our ongoing Greater Philadelphia initiatives by joining our upcoming Virtual Coffee Talks on Oct 27, 28, and 29 at 9am: https://crewgreaterphiladelphia.org/events?category=networking

Register today for our upcoming #UCREW event, Debt and Development: Investing in the Region’s Future on Sept 24 at 4pm, to hear from panelists on the current state of debt and equity markets and their impact on #CRE development https://crewphiladelphia.org/events/special-event/2020-09-24-panel

Today is the day! We are so excited to announce the rollout of our new Chapter brand - CREW Greater Philadelphia! Keep an eye out to see just what "Greater" means to us and how we will continue to be "Greater" for you and our industry as a whole. #CREW_GtrPhilly

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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.