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BuildZoom counts 265 building permits under Leiser Corporation's name — the working history of a Weston electrical contractor that says it has been at this for 50 years. William C. Leiser is the registry holder behind it: Massachusetts electrician licence 7930, active on the state registry. The company's site covers a wide spread — residential and commercial work, telephone and data, home theater, fire and security, and standby generators, with 24/7 emergency response — across a self-reported service area of Weston, Newton, Burlington and Boston. Its Better Business Bureau page carries an A+ grade and lists 13 employees under owner William Leiser. Customers describe the awkward jobs going smoothly. In an April 2024 Google review, a customer wrote that Leiser completed a retrofit installation under challenging site conditions and a tight deadline, and that "they performed perfectly." A 2022 reviewer said the generator Leiser had put in a few years earlier went in seamlessly, then called the company again about a light that had not worked in their son's Lexington house since he bought it. If you want a licensed shop for a standby generator, low-voltage wiring, or electrical work on an older house where the conditions are tricky, Leiser is a sensible call. Ask how the 24/7 emergency calls are billed, and get the scope and price in writing before work starts.
“He is employed by Leiser Corporation in Weston, as an electrician.”
Amazing work! They were able to complete a retrofit installation with challenging site conditions under a tight deadline and they performed perfectly. Highly recommended.
Leiser is great! They installed our generator a few years ago. That was seamless. Two days ago, while babysitting for our son at his house in Lexington, I called Leiser since a light in our son’s house’s laundry room has not worked since they bought the house a year ago. Leiser came within three hours and put up a whole new light fixture. Great service!
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1 change recorded — last scanned Sep 5, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Leiser Corporation. 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
Same-day fix in half an hour2.9
State-verified electrician licenseNot yet rated
Christmas Day power-mast repair4.4
Outdoor project wiring3.5