Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Historical Slate Roofing Co. Use it to sanity-check bids, then get the real number in writing.
A square is 100 sq ft of roof surface — bigger than the floor plan because of pitch and overhangs.
Estimated range
$9,000 – $18,600
Typical roofing project around $13,800
Historical Slate Roofing is a Somerville-based contractor built around a niche most roofers won't touch: slate roofs on historic New England homes, plus the custom copper work — gutters, downspouts, flashing — that tends to go with them. The company has been at it for about 13 years by its BBB record, and the reviews stretch back further than that — one customer says Kevin first worked on their slate roof 30 years ago, alongside his father. That continuity shows up again and again. Across 17 Google reviews averaging close to five stars, the same name comes up constantly: Kevin, described as the person who climbs onto the roof himself, diagnoses the actual problem, and explains it in plain terms. One homeowner with a persistent leak says several other roofers had been unable to find the cause before Kevin diagnosed and fixed it, and another reviewer says a competing quote for the same repair ran up to four times higher. The work described ranges from slate patch repairs and valley replacements to copper roofing, copper gutters, snow guards, and chimney flashing on century-old homes. The company holds a Massachusetts home improvement contractor registration, which BuildZoom lists as active under license #180226 — BuildZoom also shows two now-inactive Newton registrations from an earlier period, and its permit records show 17 completed roofing and copper-gutter projects across Brookline, Milton, and other Massachusetts towns. Its BBB profile carries an A+ rating with accredited status, though BBB shows no separate customer reviews of its own. One thing worth clearing up before booking: BuildZoom names Douglas Parker as the business's owner, but every review on record describes the actual work being done by Kevin — one reviewer identifies him as Kevin Williams Jr. It's worth asking directly who you'd be working with. For a homeowner with an older home and a roof most contractors would rather not deal with, this is a company reviewers keep coming back to over years and even decades, with a track record of straight talk about what actually needs fixing rather than what's easiest to sell.
Kevin did a phenomenal job at my house! Very happy how my roof came out would definitely hire him again
If you own a home with a slate roof then you understand the necessity in hiring the best of the best! Historical Slate Roofing is just that..THE BEST! Kevin has been my slate roofer for several years. His work is top notch. Recently we had another chimney and roof leak after a racoon decided to create havoc and ate the chimney flashing! Kevin was responsive and professional. Most of all he is honest and a kind hearted person. He and his crew did great work and terrific at cleaning up. It's not every day you find a company like this. Thank you Kevin!
Kevin went above and beyond in fixing our tiled roof, especially a challenging curved section. His expertise was evident from the start, and the final result exceeded our expectations. He also followed up with us over email to confirm that the fix worked well. Kevin’s professionalism and attention to detail were terrific. Highly recommend.”
We have used many roofers over the years. Historical Slate Roofing is by far the best. They are responsive, they come when they say they will, they do excellent work, and their prices are fair. I highly recommend them!
I used Historical Slate Roofing to repair several slats on my slate roof. Kevin was responsive, friendly, and provided high quality service.
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2 changes recorded — last scanned Sep 6, 2026.
Answers in a storm5.0
Free repairs, even a decade later5.0
Honest guidance5.0
Detailed craftsmanship5.0
Fast on leaks4.5