Jonathan W. Haigh

Out of 66 Cogswell St in Haverhill, Jonathan W. Haigh has put his name on 113 permitted projects, mostly plumbing and gas work. That is a long working history for a one-man plumbing shop. It is also mostly behind him: three of those 113 permits came in the past three years. No homeowner has written about him on his BuildZoom page, so the permit trail is what there is to go on — and permits say what he worked on, not how the jobs went. The credentials attached to that page are worth sorting out before you commit. BuildZoom lists a Massachusetts plumber license, #16607, with a May 2026 expiration, while the same profile shows no active license on file. On the electrical side the paperwork has plainly run out: a master electrician license, #13978, expired in July 2016 and is listed as cancelled, and a Home Improvement Contractor registration, #198396, is listed inactive. For a straightforward plumbing or gas repair from someone who has been permitting work in Haverhill for years, he is a plausible call. Ask him for his current plumbing license number and check it against the state registry yourself, and ask for a couple of recent jobs you can follow up on — the permit history runs deep, but most of it is not recent.