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The Best Generators

We only carry the top brands with the best manufacturer warranties. Each generator is installed and serviced by our expert Colonial Generator installer team. Our focus is on providing the “best in class” generators with excellence in installation, service and maintenance.  Our engineers go through rigorous training and each installation is backed by our service guarantee and the manufacturers warranty.  From 7kW to 150kW we carry, install, service and monitor any size generator for home or business.

We sell generators all over the U.S. but we install generators for home and business in the Northeast & Mid Atlantic.  We have locations at 473 S. Henderson Rd, King of Prussia, PA 19406 and our new location at 202 Milton Street, Dedham, MA 02026.  From these locations our crews install & service Pennsylvania, New Jersey, Maryland, DC, Virginia, Connecticut, Vermont, Massachusetts, New York, New Hampshire and Rhode Island.

Proactive Monitoring

We are the only installer that provides an in-house monitoring service for each of its generators which ensures that your generator will be in good operating condition as a storm approaches.

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