Complex Facilities, Responsible Methods, Perfect Delivery

Life Science Manufacturing and Laboratory Electrical Projects

Learn More

Industry Savvy, Nimble Project Teams, Effective Strategies

Enabling Renewable Energy Across New England

Learn More

Practical Approach, Quality Installation, Satisfied Customers

We Provide Craftsmanship and Flexibility

Learn More

In-House Engineering, Design, CAD, and BIM

Our Design/Build Team Stands Ready

Learn More

3D Coordination, Detailing, Prefabrication & Lean Methods

Optimizing Resources & Delivering Value Through Innovation

Learn More

Optimize Your Potential with an Empowering Career at Interstate!

The electrical trade has something for everyone, and Interstate is the place to be!

Learn More

News

IESC Completes Multi-Floor Core and Interior Office Renovation See More »

Now Might be the Best Time for an Arc Flash Study See More »

IESC Uses Prefab Technologies on Maine Medical Project See More »

Preventative Maintenance See More »

How the Electrical Industry has Transformed over the Past Few Decades See More »

NEREJ One-on-One with Luiza Mills See More »

How the Electrical Industry has Transformed over the Past Few Decades See More »

Welcome Hartford Business Journal readers! See More »

BAE Systems construction project moves along in Manchester See More »

Ask the electrician: Power surges: Are they a big deal? See More »

Interstate Electrical Services Launches First Registered Apprentice Program for Manufac... See More »

What can I do to make sure my electrical system upgrade goes smoothly? See More »

Interstate Makes the Case for Electrical Careers in The Boston Business Journal See More »

The electrical trade: Today’s challenging demands make for creative solutions See More »

Interstate Electric Named Qualified Partner in ‘Efficiency Maine’ Program See More »

Interstate Designs Electrical System for First-Ever Archimedes See More »

Infrared Testing Assures Power Reliability See More »

About Us

Interstate Electrical Services Corporation is the largest privately held electrical services company serving greater New England. Founded in 1966, Interstate has offices in all six New England states, 800+ employees, and a fleet of 250+ vehicles. For over 56 years, Interstate has dedicated itself to exceeding expectations on every project for every customer. Interstate is a valued partner and trusted employer.