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
Essex County, MA
The North Shore takes nor'easters at landfall and carries salt in the air year-round — which is why roofs here age faster than almost anywhere in Massachusetts. Interlock ends that. One aluminum roof that salt cannot rust and wind has nothing to grab, with a lifetime warranty that transfers to the next owner.
★ 4.7 average from 510 verified Massachusetts reviews
Massachusetts line: (508) 257-7859 · Toll-free 1-866-733-5811
Nor'easters arrive here with sustained onshore wind driving rain sideways, finding every lifted asphalt tab. Interlock panels lock on all four sides — no loose tab to catch, no open seam for wind-driven rain. You stop going outside in the morning to count what came off.
In Gloucester, Rockport, Marblehead and along Plum Island, airborne salt corrodes steel panels and the fasteners holding them — usually the fasteners first, which loosens a roof before it even looks old. Interlock is aluminum. It does not rust. That is the whole reason it is still there decades on.
Salem, Newburyport and Marblehead expect slate and wood-shake rooflines; the matching aluminum profiles keep that character permanently, without the splitting and cupping real wood suffers in salt air.
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.

Danvers, MA
Deep Charcoal

Beverly, MA
Deep Charcoal

Saugus, MA
Deep Charcoal

Haverhill, MA
Colonial Brown

Saugus, MA
Colonial Brown

Saugus, MA
Colonial Brown

Rockport, MA
Charcoal Grey

Saugus, 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
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