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Electrical Panel Upgrade in Syosset, New York

7 businesses offering electrical panel upgrade with a Syosset address in Nassau County, NY. Updated 9-22-26.

Business	Phone	Website
Brees Electric & SystemsSyosset	(516) 921-8372	—	Report Phone doesn’t work
Continental Electric SalesSyosset	(631) 470-9611	contelect.com	Report Phone doesn’t work Website doesn’t work
Don Thornberg Building CorpSyosset	(631) 786-3689	thornbergbuilding.com	Report Phone doesn’t work Website doesn’t work
H&A Long Island Electrician SyossetSyosset	(516) 218-5507	toplongislandelectrician.com	Report Phone doesn’t work Website doesn’t work
Mr Billy ElectricSyosset	(516) 226-3186	—	Report Phone doesn’t work
NEXGEN Electrical Contracting, LLCSyosset	(516) 350-3423	nexgenelectrical.net	Report Phone doesn’t work Website doesn’t work
Standard Electric CorporationSyosset	(516) 499-7354	standardelectriccorp.com	Report Phone doesn’t work Website doesn’t work

Listed alphabetically. If a phone number or website does not work, use Report on that listing. Business owners: write to contact@hometradesdirectory.com to correct or remove a listing.

All electrical panel upgrade in Nassau County, by townAll 105 trades in Nassau County