Nazar was wonderful! Gave us all kinds of suggestions to help us keep our beautiful roof long lasting for a lifetime
— Karen C., Clarksburg, MA
Hampden County, MA
Western Massachusetts gets a different kind of severe weather than the coast — inland thunderstorms, damaging straight-line wind and hail. Interlock is built so that stops being a roof problem: mechanically interlocked aluminum with nothing for wind to lift, installed once, and carrying a lifetime transferable warranty from Interlock Roofing Ltd.
★ 4.7 average from 510 verified Massachusetts reviews
Massachusetts line: (508) 257-7859 · Toll-free 1-866-733-5811
The Connecticut River valley is the most tornado- and severe-thunderstorm-prone corner of Massachusetts — the 2011 tornado through Springfield, Monson and Brimfield is still the reference event here — and hail rides in on the same systems. Asphalt shingles rely on adhesive tabs that dry and release with age; once one lifts, a storm can unzip a slope. Interlock panels interlock on all four sides and fasten to the deck. Different failure model entirely.
Springfield, Holyoke and Chicopee hold a large stock of dense pre-war housing where asphalt comes due every fifteen to twenty years — another tear-off, another dumpster, another five figures. This is the roof that ends the sequence, and the warranty transfers when you sell.
Our work
Every pin is a real installed Interlock roof — location, system and install year. Browse the Massachusetts directory of completed projects, or explore the map below.
Gallery
Real homes, real installations — photographed after completion.

Wilbraham, MA
Deep Charcoal

Springfield, MA
Charcoal Grey

Springfield, MA
Charcoal Grey

Charlton, MA
Hunter Green

Pittsfield, MA
Charcoal Grey

Sagamore Beach, MA
Deep Charcoal

Danvers, MA
Deep Charcoal

Beverly, MA
Deep Charcoal
Reviews
Nazar was wonderful! Gave us all kinds of suggestions to help us keep our beautiful roof long lasting for a lifetime
— Karen C., Clarksburg, MA
Jose and the technician communicated easily and reviewed future work with pricing. Detailed work and assessment.
— Elizabeth S., Framingham, MA
The worker did a great job removing the furnace flue that was not needed anymore
— Mark O., Tyngsborough, MA
Technician went above and beyond. He had to resecure my gutter before fixing my damaged shingles. The repair looks like they had never been damaged. Super nice gentlemen. So glad I purchased my roof through Interlock back in 2004!
— Barbara B., Upton, MA
The warehouse manager went out of his way to accommodate my payment related requests. My installer was professional, answering all my questions and providing pictures of each step in the repair process.
— Maureen G., Athol, MA
Very Informative
— Richard H., Rowley, MA
Springfield, Chicopee, Holyoke, Westfield, Agawam, West Springfield, Longmeadow, East Longmeadow, Ludlow, Palmer, Monson, Wilbraham
Saved on this device. These tools assist browsing; they don't replace your own assistive technology.