Celtic Home Improvement

Celtic Home Improvement is the kind of one-owner shop a neighborhood keeps calling back. David Sheehan has run it out of Lynn since the mid-1980s — close to four decades — and one recent review captures the tone: 'call them every time, never been let down.' Across platforms the numbers line up: 4.9 from 106 reviews on Birdeye, 4.67 from 63 on Porch, and clean 5-star marks on Yelp, Google, and Facebook. The work people describe is broad-remodel territory — custom window installs in vinyl and wood plus Andersen and Harvey doors, kitchens and baths, decks, masonry, carpentry, fencing, and finished basements. Windows come up again and again, and the company carries a Massachusetts Construction Supervisor license (CS-102004) and a Home Improvement Contractor registration (154690). One thing to set expectations on: for all the remodeling range here, none of the public reviews or listings specifically describe a floor installation. Celtic reads as a full-service renovation contractor that would fold flooring into a larger project rather than a dedicated floor specialist — so if a standalone floor job is what you need, ask directly about recent flooring work and see photos before you book. It's a solo operation, which is part of the appeal (you deal with Sheehan himself) and also the limit (one crew, one schedule). For a homeowner wanting a seasoned, licensed generalist for windows, a remodel, or a mixed punch-list, Celtic is an easy call; confirm timeline and scope up front, and get the specifics of any flooring portion in writing.