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Lawrence V. Sweet Plumbing and Heating is a Lexington shop that, by its own account, has been a family business for almost a century. Its Better Business Bureau page carries an A+ grade. Plumbing and heating are the core of the work, listed the same way by the Better Business Bureau, BuildZoom and the company itself. The Better Business Bureau also lists gas services, drain cleaning, and back flow preventing device installation, testing and repair. The company's own site adds cooling and says it serves both residential and commercial customers, with Lexington named as the service area. That last point is the thing to settle first — ask whether they come out to your town before you get into scheduling. A straightforward call if you're in or near Lexington and want one outfit for plumbing, heating and gas work rather than three. Ask what a service visit costs, and confirm the backflow work up front if that is what you need.
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Certified attributes are verified against the public registry. Others are the business's own statement.
No changes recorded yet — last scanned Sep 9, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Sweet Lawrence V Plumbing & Heating. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
Named technicians3.8
Fast heating calls3.6
Full HVAC upgrade to heat pumps in three days4.0