First Class TinKnocker, LLC

First Class TinKnocker runs its Malden, MA HVAC business almost entirely on heat pumps and ductless mini-splits — nearly every review on file describes one of those installs, and the same two names keep coming up: owner Jason and office manager Nellie. The company calls itself family-owned, and its Massachusetts HVAC license is active and verified with the state. The pattern in the reviews, running from 2023 into this year, is a homeowner getting multiple quotes, choosing Jason after he worked out the install details on-site, then reporting back that the work matched what was promised. A 2024 review described converting two apartments from gas-heated forced water to ductless heat pumps and called the pricing and installation quality terrific; a 2023 review described minimizing the visible tubing runs on a mini-split install so barely any of it shows from outside the house. When something has gone sideways, the response has been quick: a 2025 review said Jason came out within 48 hours for an emergency heat failure on a system another company had installed; a 2023 review described a technician arriving within the hour during a summer heat wave to fix a failed AC unit; and when a 2025 heat-pump install developed a condensation leak six months later, caused by an insulation crew stepping on the drain hose, a crew was sent out right away to fix it. The company also holds a Mass Save Heat Pump Installer Network affiliation, and the Better Business Bureau gives it an A+ grade, though it isn't BBB accredited — a separate, opt-in status. Worth knowing: every review on file is a five-star Google review, and Google shows 18 of them, a real but fairly small written sample for a company that its BBB listing says has been in business 14 years. For anything from a whole-house ducted heat pump conversion to a single mini-split, this is a shop reviewers credit with showing up when something breaks and following through afterward — worth asking how the Mass Save rebate paperwork gets handled for your project, since several reviewers mention Jason and Nellie taking that on.