Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from KB-Mac Inc.. Use it to sanity-check bids, then get the real number in writing.
Standard receptacle swaps — a new dedicated circuit is a bigger job ($350–$750).
Flush mounts, pendants, chandeliers — hung on existing boxes.
Estimated range
$530 – $1,100
Typical electrical project around $820
KB-Mac is a Boston commercial electrical contractor founded in 2021 by Kenell Broomstein, an IBEW Local 103 business agent, as part of the inaugural class of the union's Empower DEI Program — a partnership with NECA member Sullivan & McLaughlin Companies aimed at building new women- and minority-owned electrical firms. The company holds active Massachusetts Minority Business Enterprise and Women Business Enterprise certifications, and Broomstein's individual Massachusetts electrician license is active. Its work is squarely commercial: fire alarm systems, commercial construction, project estimating and electrical installation, per its Better Business Bureau listing. The company is BBB accredited with an A+ grade, has grown to 20 employees since incorporating in 2021, and is a union shop affiliated with IBEW Local 103.
“The inaugural class of the Empower DEI Program will include KB-MAC, Inc., a newly formed company founded by current IBEW 103 Business Agent Kenell Broomstein, in partnership with industry leader and NECA member Sullivan & McLaughlin Companies, Inc.”
“The inaugural class of the Empower DEI Program will include KB-MAC, Inc., a newly formed company founded by current IBEW 103 Business Agent Kenell Broomstein, in partnership with industry leader and NECA member Sullivan & McLaughlin Companies, Inc.”
“John McLaughlin, president of Sullivan & McLaughlin Cos., and Kenell Broomstein, founder and president of KB-Mac Inc.”
“The JATC Trustees, including David Noon of J&M Brown, Kathy Guinee of Aetna Fire Alarm, Ronnie Koning of State Electrical and Kenell Broomstein of KB-Mac, Inc. celebrated their milestone along with their families at the IBEW Local 103 Union Hall.”
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Certified attributes are verified against the public registry. Others are the business's own statement.
1 change recorded — last scanned Aug 7, 2026.
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