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Christopher C Allen is a one-man construction business listed at 20 Mill Street in Middleton, Massachusetts, working under Massachusetts Construction Supervisor licence CS-075275 — the licence class the state requires for work touching a building's structural elements. BuildZoom records that licence as verified active as of August 2026, and points readers to the Massachusetts Department of Public Safety to confirm it. The permit trail is where the work shows. Between 2011 and 2020 the permits on file cover a $520,316 addition in Belmont (2020), a three-level rear addition in Waban in 2014 that a permit note describes as taken over mid-job when the homeowner stopped acting as general contractor, a $228,096 kitchen and family-room addition with three bathrooms remodelled in Waban in 2012, and a run of exterior work on a two-family at 420-422 Medford St in Charlestown — a strip-and-reroof in 2017, vinyl siding the same year, and a $242,175 deck rebuild with synthetic decking and hardscape repair in 2018 — plus two re-roofs on a Beverly house in 2011 and 2012. That is a record of substantial structural additions alongside straightforward exterior jobs, spread across Boston-area and North Shore towns. What no source supplies is a customer voice: BuildZoom states it has received no reviews, and its score of 98 is calculated from licence and permit records rather than from anyone who hired him. The profile is also unclaimed, and the descriptive paragraph on it — including a '15 years of experience' line — is the directory's own generated text rather than anything the business has said. Anyone considering him should confirm CS-075275 directly with the Department of Public Safety, ask whether he also holds Home Improvement Contractor registration for non-structural work, get a working phone number (the one printed on the directory is not a valid US number), and ask for references from the recent addition projects.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Christopher C Allen. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$23,000 – $35,000
Typical remodeling project around $29,000
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No changes recorded yet — last scanned Aug 17, 2026.
Roof deck builds4.4
Porch and deck rebuilds4.4
49 years in business4.4
Low-disruption projects4.4