Pipe Replacement Program
Why we’re replacing pipes
Just like replacing your roof or car tires over time, maintaining a safe, reliable natural gas system means upgrading older parts of the infrastructure. That’s why we’re replacing more than 1,000 miles of cast- and ductile-iron natural gas mains by 2035—pipes that have served their purpose and are ready to be retired.
Benefits of a modern system
Upgrading our natural gas system brings significant safety, performance, and environmental benefits, including:
- Stronger materials – New plastic pipes are flexible and better withstand Chicago’s freeze-thaw cycles and resist corrosion.
- Pressure protection – Over-pressurization controls help regulate gas pressure automatically before it enters your home or business.
- Emergency shut-off access – Valves are accessible 24/7 in case of an emergency.
- Automatic safety features – Excess flow valves automatically shut off gas if flow exceeds safe limits.
- Fewer leaks, fewer emissions – New pipes reduce methane emissions and improve air quality.
- Future-ready infrastructure – Supports clean energy solutions, including hydrogen blends and renewable natural gas.
Out with the old: Removing cast- and ductile-iron mains
View our interactive map to see where aging cast- and ductile-iron mains still exist in our system. Many of these pipes date back to the late 1800s and early 1900s and have reached the end of their useful life.
Watch the process
Stay informed
Keeping you informed is key to your satisfaction and our success. If you have questions and/or need additional information, email us at
customerservice@peoplesgasdelivery.com or call us at 866-556-6001.
