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About Us


Jack Grenga is a Master Electrician and Fully Authorized Generac Dealer. Specializing in generator sales, service & installation. We service generators of any brand. We are also an authorized Interstate Battery Dealer. 


Founded in 1987 we offer 33 years of electrical experience. Whatever your need you can trust Precision Electric for the best advise & service.


Complimentary generator quotes

Annual maintenance on your pre-existing generator


HOURS:  8am - 4:30pm

PHONE: 508-473-5833

EMAIL: jackgrenga@gmail.com

Service

Servicing Massachusetts and Rhode Island. Able to service any brand of generator.

Testimonials

"Jack at precision electric just did ours. They did a great job with it"  ~ J.R.


"He pretty much exclusively does Generac Generators, sales installation and service tell him I told you to call him, a really nice guy" ~S.R.


"I recommend Precision Electric co. Here in Mendon.  Jack Gregna is the owner. Long time Mendon resident." ~ L.P.

FAQs



Licensed Contractors

Licensed Contractors

Licensed Contractors

As a company dedicated to providing premier customer service, it is important to us to deliver unparalleled workmanship on every assignment.​ We are licensed and insured. With our experience and expertise, we can provide the support your project needs.

On-time Completion

Licensed Contractors

Licensed Contractors

We will work with you to meet deadlines and coordinate with other related projects. We will maintain open communication with you to keep you up to date on the status of your job. We do this to guarantee that the project is completed according to your preferences.

Great Service

Licensed Contractors

Great Service

We combine our industry knowledge, the highest quality building supplies and equipment, and our dedication to deliver exceptional service to our clients. We will stay in touch, keeping you up to date on both the paperwork and renovation process.
 

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