As a General Contractor it’s always a little nerve wracking working with a new sub for the first time. John K was fantastic and did an excellent job representing GBM. Looking forward to working with them again.

~ Maria Holyk

GB Manchester is our “Go To” contractor for all of our data, fire and security needs. The tech’s are always professional and go the extra mile. It is rare that I find any of their work that is not exceptional. If they do make a mistake they fix it FAST and with out charge. You can’t go wrong if you employ this great company.

~ Kathleen Jefferies

Excellent customer service, fast and quick installation. Very professional crew, I would definitely recommend.

~ Gary Sanders


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