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Local business · Winthrop, MALocal business · 28 Marshall St, Winthrop, MA
Verified record
Ductless mini-splits, condensers, air handlers: the same job repeats through Christopher P Barthuly's permit history. His BuildZoom profile records 36 permitted projects, overwhelmingly residential electrical work tied to cooling and heat-pump installs, with service and panel upgrades alongside them. He works out of 28 Marshall St in Winthrop, and those permits reach across Greater Boston and the North and South Shores. Their timing is uneven: most were pulled in 2017 and 2018, with one since 2024. If a heat pump or a mini-split is what you are putting in, that is the work he has done most of. Ask what he has installed recently, and confirm what licensing your job requires before it is scheduled.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Christopher P Barthuly. 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
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1 change recorded — last scanned Aug 3, 2026.
Complex troubleshooting4.7
100-to-200-amp service upgrades4.3
New-home wiring2.3