JLB Plumbing & Mechanical, LLC

JLB Plumbing & Mechanical is a Wakefield, MA plumbing and HVAC company founded in August 2020, and Kevin is the technician who shows up most in the reviews — for everything from routine heating and AC maintenance to a boiler pipe that snapped from corrosion at 7pm on a weeknight. That corrosion job is a good example of how the company handles an emergency: after the after-hours call, JLB got back to the customer first thing the next morning and arrived within a couple of hours, according to a 2026 review. Other reviews describe Francisco fixing three separate bathroom leaks in under two hours, Joe installing a water softener for a well with hard water, and the team completely overhauling an aging furnace and oil tank. Melissa, in the office, comes up again and again for keeping customers updated on scheduling and follow-up calls. One review is very different from the rest: a March 2025 post says the owner made the customer uncomfortable and urged others to avoid the company, though it gives no further detail about what happened. It's the only account like it out of more than 150 reviews on file, but it's worth being aware of before you call. For plumbing or HVAC work, from a routine tune-up to an after-hours emergency, JLB is a strong option across its Greater Boston, North Shore and southern New Hampshire service area — ask which technician will be assigned and confirm response times for anything urgent.