★★★★★
Great work. He is the best
— Peter La M., Derry, NH
Merrimack County, NH
Metal Roofing in Merrimack County — Buy the Roof That Outlasts You
Merrimack County spans two different roofs: the settled capital-region neighborhoods around Concord and Bow, and the higher, snowier Kearsarge towns west of them. Both get the same answer. Interlock is aluminum, installed once by a certified crew, and warrantied for the life of the home — no replacement cycle to plan around.
★ 4.7 average from 233 verified New Hampshire reviews
New Hampshire line: (603) 803-4998 · Toll-free 1-866-733-5811
CONCORD'S OLDER STREETS KEEP THEIR CHARACTER
The capital's established neighborhoods were roofed in slate when they were built, and the profile is what makes them read the way they do. Interlock's aluminum slate profile holds that appearance at 0.41 psf installed, against roughly 8 to 10 psf for the natural material — so the roofline survives without reinforcing the frame under it.
THE KEARSARGE SIDE GETS REAL SNOW
New London, Wilmot, Warner and Henniker sit high enough to see far more snow and far more melt-and-refreeze than the river towns do. Interlock sheds snow rather than holding a saturated mat against the deck, and meltwater finds no exposed seam to get under. (Dam formation itself is an attic insulation and ventilation issue, which we check at every estimate.)
LONG OWNERSHIP CHANGES THE MATH
People stay in these towns. If you plan to be in the house for decades, the question is not what a roof costs — it is how many roofs you intend to buy. The Guardian Warranty from Interlock Roofing Ltd. is lifetime and transferable, so the answer can be one.
AND IT IS ALUMINUM THROUGHOUT
Not steel with a coating over it. It does not rust.
Our work
Completed Interlock® roofs across New Hampshire
Every pin is a real installed Interlock roof — location, system and install year. Browse the New Hampshire directory of completed projects, or explore the map below.
Gallery
Interlock roofs installed across New Hampshire
Real homes, real installations — photographed after completion.
Concord, NH
Black
Hooksett, NH
Deep Charcoal
Webster, NH
Charcoal Grey
Bow, NH
Deep Charcoal
Concord, NH
Deep Charcoal
Concord, NH
Colonial Brown
Bow, NH
Deep Charcoal
Bow, NH
Deep Charcoal
Reviews
What New Hampshire homeowners say
★★★★★
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
★★★★★
Professional installation and a very durable product that looks great decades down the road. 3rd Interlock Roof and very happy
— Bruce M., Epping, NH
