KB Heating & Cooling LLC

Two numbers keep showing up when Chelmsford homeowners write about KB Heating & Cooling: how quickly the crew got there, and how far under the other quotes the price landed. A December 2024 customer who bought a heat pump, an air handler and three mini-splits said KB came in as much as $10,000 below competing bids and replaced the whole system in four days. Kyle Browne runs the shop from 5 Clarke Ave. The company calls itself veteran-owned with 20 years behind it, and its site says Browne finished the HVAC program at Shawsheen Tech in Billerica in 2005, joined the Air Force in 2009 doing water and fuel maintenance and plumbing, and was honorably discharged just under five years later. A LinkedIn profile under his name describes the business as a Service-Disabled Veteran-Owned Small Business. Those are the company's own statements about itself, not anything confirmed against a registry. The work is mostly the electrification jobs eastern Massachusetts has been doing lately — ductless mini-splits, ducted heat pumps, furnace and AC swaps — plus the rebate paperwork that rides along with them; that same December 2024 reviewer credited the company with knowing the Mass Save process, and a June 2024 mini-split job was set up to qualify for the reimbursement. Replacements under pressure come up again and again: a landlord writing in December 2024 whose tenants had no heat, a homeowner writing in April 2025 whose furnace died mid-winter and was replaced in a single day. Google sits at 4.7 stars across 26 ratings. Two accounts cut the other way, and both are worth reading before signing. The newest thing on the whole record is a one-star from January 2026, written by first-time buyers of a 1963 slab-foundation house: old ductwork running through the slab was reused for a whole-house heat pump, they say it proved compromised, and they posted the review specifically so other buyers would question that approach. Earlier, in June 2024, a customer wrote that Browne took a deposit for a ductwork reroute on a two-week deadline, never produced a formal contract, and let the schedule slip. Plumbing is a real second trade here, not a footnote — the site sells it alongside HVAC, and an October 2024 customer had their plumbing completely redone during an AC install. The site posts Massachusetts plumbing licence #34630 under Browne's name; that number is the company's own claim rather than a confirmed registry record, so ask to see it if plumbing is part of your job. If you're pricing a mini-split or a heat pump conversion around Chelmsford and want a sharp number on a fast calendar, this is a sensible call. Get the scope and the schedule in a signed contract first, and on an older house press for a straight answer about whether the existing ductwork is fit to reuse.