★★★★★
Work was done efficiently quick. Workplace was clean after job.
— Robert P., West Lebanon, NH
Carroll County, NH
Metal Roofing in the Mount Washington Valley — One Roof for a Lifetime
Carroll County is snow country with a second-home problem: long, heavy mountain winters landing on houses nobody is standing in. Interlock is the roof that handles both. Aluminum, four-way interlocking, shedding snow rather than holding it — installed once and covered by a lifetime limited warranty for the original owner, with nothing to maintain in between.
★ 4.7 average from 231 verified New Hampshire reviews
New Hampshire line: (603) 803-4998 · Toll-free 1-866-733-5811
THE SNOW LEAVES ON ITS OWN
From Jackson and Bartlett up through the valley, winter loads a roof and reloads it before the last one is gone. Interlock sheds snow rather than holding a saturated mat against the deck, and meltwater running under a frozen edge finds no exposed lap seam to get through. (Dam formation itself is an attic insulation and ventilation issue, which we check at every estimate.)
A HOUSE YOU VISIT SHOULD NOT NEED WATCHING
If the place is a ski house or a summer camp on Ossipee Lake, the real cost of a roof is discovering a problem in April that started in January. Interlock has no maintenance schedule and no replacement cycle — there is nothing to come back and find.
THE LODGE LOOK, WITHOUT THE WOOD
Cedar shake is the valley's vernacular, and real cedar up here splits, cups and grows moss. Interlock's cedar-shake profile holds that appearance permanently in aluminum, which does not rust.
AND IT SELLS WITH THE HOUSE
The Guardian Warranty from Interlock Roofing is a lifetime limited warranty, transferable to the next owner.
Gallery
Interlock roofs installed across New Hampshire
Real homes, real installations — photographed after completion.
Sanbornville, NH
Hunter Green
Sanbornville, NH
Hunter Green
Sanbornville, NH
Hunter Green
Sanbornville, NH
Hunter Green
Effingham, NH
Tudor Brown
Sanbornville, NH
Black
Northwood, NH
Deep Charcoal
Northwood, NH
Deep Charcoal
Reviews
What New Hampshire homeowners say
★★★★★
Great work. He is the best
— Peter La M., Derry, NH
★★★★★
This has been one of our best investments ever. It wasn’t perfect when they finished but the after installation follow up has been. Navir always has been very professional, friendly and polite. I always have tried to tip him, he never accepts it but is grateful for the offer. I highly recommend this company.
— Jon T., Center Harbor, NH
★★★★★
They gave us a prompt response when our roof was damaged by a tree branch. Looks as good as new !
— John B., Chester, NH
★★★★★
Nazar was wonderful! I can’t thank him enough!
— Jeffrey Y., Hampton, NH
★★★★★
Naz, worked for hours non stop doing the repairs , He had a lot of stamina and knowledge on how to remedy any damage . Afterwards he showed me the finish product , I was and still am amazed as to the quality of his works
— Andy B., Barrington, NH
Towns we serve in Carroll County, NH
Albany, Brookfield, Effingham, Sanbornville, Conway, North Conway, Wolfeboro, Ossipee, Tamworth, Moultonborough, Jackson, Bartlett, Madison, Freedom
