Madbury, NH — Deep Charcoal Interlock Slate · Real install
Serving all six New England states · Walpole, MA

Never
Re-Roof
Again.® Lifetime Interlock® metal roofing, installed across New England.

One decision removes roofing from your life for good — no exposed lap seams for backed-up meltwater to find, no curling shingles, no $30k replacement every 20 years. Guaranteed in writing: The Guardian Warranty, lifetime coverage — and if you sell, the next owner is covered to 50 years.

0+Interlock roofs across North America — 32,000+ pinned on the live project map
0Documented New England installs — every one pinned on the project map
4.6What owning one feels like — 8,555 verified reviews network-wide
LifetimeYour warranty moves with the house when you sell (1× transferable)
Massachusetts ·New Hampshire ·Vermont ·Maine ·Connecticut ·Rhode Island ·Never Re-Roof Again®Massachusetts ·New Hampshire ·Vermont ·Maine ·Connecticut ·Rhode Island ·Never Re-Roof Again®
01 — Why Interlock

What changes when an Interlock metal roof goes on your New England home.

Coastal salt air stops mattering — aluminum doesn't corrode

Aluminum can't rust — ever. Coastal homes keep their roof and their looks while steel and asphalt neighbors replace theirs.

Snow country

Ice dams lose their way in: snow-shedding roof design

Dams are driven by attic heat loss — insulation and ventilation stop them forming. The roof's job: shed snow and leave meltwater no exposed seam to back up under.

Recycled
95%

Recycled aluminum

The last tear-off your house will ever see — nothing to the landfill every 15 years.

Engineering

Lightweight aluminum: the look upgrades, the house doesn't strain

Slate and cedar character at a fraction of the weight — no structural work, no compromise.

In writing

Resale value: a transferable lifetime roof warranty

A lifetime warranty that transfers to the buyer — covered to 50 years from install — becomes a listing feature.

02 — The Proof

How long does a metal roof last? 21 years on this NH roof.
We can show you the proof.

Gilsum NH Interlock roof, installed 2004
Installed Aug 20, 2004 — photographed recently
0
years on one Gilsum, NH roof — zero degradation
SystemCharcoal Grey Interlock aluminum shingle · 55 squares
ConditionNo rust, no curling, no replacement — through 21 New England winters
CompareAn asphalt roof installed the same year would be on its second replacement
03 — The Head-to-Head

Metal roof cost vs. asphalt, cedar & slate in New England: the math nobody shows you.

What New England's popular roofing materials actually deliver over the life of your house — not over the length of a sales pitch.

Asphalt Shingles roofing

Asphalt Shingles

15–20 yrs typical
Roofs you'll buy in 50 yrs2–3
Ice dams & snowProne — heat cables, roof rakes
Coastal salt airAccelerated granule loss
Structural loadLight
MaintenanceRepairs, moss, curling
Warranty10–30 yr, prorated
Cedar Shake roofing

Cedar Shake

20–30 yrs with upkeep
Roofs you'll buy in 50 yrs2
Ice dams & snowModerate risk
Coastal salt airWeathers & splits faster
Structural loadModerate
MaintenancePeriodic treatment, splitting
WarrantyLimited
Natural Slate roofing

Natural Slate

75–100+ yrs
Roofs you'll buy in 50 yrs1
Ice dams & snowGood shedding
Coastal salt airUnaffected
Structural loadVery heavy — often needs reinforcement
MaintenanceBrittle — specialist repairs
WarrantyVaries by quarry
Interlock aluminum metal shingle roofing

Interlock Aluminum

Lifetime — never re-roof again®
Roofs you'll buy in 50 yrs1
Ice dams & snowSheds snow — four-way interlock blocks wind-driven intrusion
Coastal salt airRust-proof — aluminum can't corrode
Structural loadUltra-light — ~1/7 the weight of slate
MaintenanceNone beyond a rinse
WarrantyThe Guardian Warranty · lifetime · 1× transferable when you sell
Proven in New England21 years on the Gilsum, NH roof — and counting
04 — Our Work · New England Only

Metal roofing projects across New England.
Real homes. Real towns. No stock photography.

Foxborough, Massachusetts — Interlock metal roof install
Foxborough · Massachusetts

Black Interlock Cedar Shingle (Board & Batten)

Black Interlock cedar-shingle metal roofing on a board-and-batten home in Foxborough, MA.

Madbury, New Hampshire — Interlock metal roof install
Madbury · New Hampshire

Deep Charcoal Interlock Slate (Tudor), 43 sq

Deep Charcoal Interlock aluminum slate roof on a Tudor home in Madbury, NH (43 squares).

Westford, Massachusetts — Interlock metal roof install
Westford · Massachusetts

Deep Charcoal Aluminum Shingles

Deep Charcoal Interlock aluminum slate/shingle roof in Westford, MA.

Gilsum, New Hampshire — Interlock metal roof install
21 yrs strong
Gilsum · New Hampshire

Charcoal Grey Interlock Shingle (18+ yrs), 55 sq

Documented Charcoal Grey Interlock aluminum shingle roof in Gilsum, NH, performing at 18+ years…

See all 422 real New England roofs →

5,012 documented metal roof installations across all six states. Every one on the map.

Find your town — every pin is a real installed Interlock roof with its system, color, and install year.

Browse by state →
05 — Roof Systems

Interlock roof styles we install: slate, cedar shingle, shake, tile, standing seam & copperThe look belongs to your home.
The performance belongs to metal.

Slate

Slate

The formal character of quarried New England slate — 7× lighter, in rust-proof aluminum.

Cedar Shingle

Cedar Shingle

Warm, dimensional cedar for Capes and Colonials — without splitting or maintenance.

Shake

Shake

Deep shadow lines and hand-split texture, secured by the four-way interlock.

Med. Tile

Mediterranean Tile

Sculptural tile profiles with far less structural load than clay.

Standing Seam

Standing Seam

Clean vertical panels, concealed fasteners — engineered for snow shedding.

Copper

Solid Copper

A living metal that patinas beautifully for a century.

06 — Verified Reviews · New England

Metal roofing reviews: 805 from Massachusetts homeowners.
And that's one state.

4.6
★★★★★
8,555 verified reviews network-wide · Google & GuildQuality
958 New England ratings documented (GuildQuality + Google) — 937 published on this site & sampled below
★★★★★

"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
★★★★★

"Had an impressive inspection and recommendation to improve the water intake to the gutters"

Thomas O. · Groton, CT
★★★★★

"The worker did a great job removing the furnace flue that was not needed anymore"

Mark O. · Tyngsborough, MA
★★★★★

"Nazar was wonderful! I can’t thank him enough!"

Jeffrey Y. · Hampton, NH
★★★★★

"Very Informative"

Richard H. · Rowley, MA
★★★★★

"Professional installation and a very durable product that looks great decades down the road. 3rd Interlock Roof and very happy"

Bruce M. · Epping, 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
★★★★★

"I thought they did a great job."

Tessy and Mark S. · Stoughton, MA
★★★★★

"Repair of my roof was very impressive. Couldn't tell where the repair was done. Very satisfied customer."

Gary D. · Jefferson, MA
★★★★☆

"You should stipulate that the subcontractor always have someone on site who speaks English. This didn't create an issue but it could have."

William and Lislie V. · Westford, MA
★★★★☆

"You should stipulate that the subcontractor always have someone on site who speaks English. This didn't create an issue but it could have."

William and Lislie V. · Westford, MA
★★★★★

"Everybody was great to work with highly professional. Any underlying damage was all taken care of and we love the roof."

Robert B. · Amston, CT
★★★★★

"Had an aluminum tile roof installed through Interlock. They were professional, fair, and kept the budget on exactly what was estimated. Happy with the results; would…"

Sasha L. · Dover, NH
★★★★★

"At first we were going to put a second layer down but we found after that there already was a second layer when the project was starting which delayed the project. An…"

Steven J. · Bow, NH
★★★★☆

"From the Salesman to the work crew, everyone was extremely professional. Although expensive I do feel I have made a great investment for my home."

Natalie M. · Brockton, MA
★★★★★

"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
★★★★★

"Had an impressive inspection and recommendation to improve the water intake to the gutters"

Thomas O. · Groton, CT
★★★★★

"The worker did a great job removing the furnace flue that was not needed anymore"

Mark O. · Tyngsborough, MA
★★★★★

"Nazar was wonderful! I can’t thank him enough!"

Jeffrey Y. · Hampton, NH
★★★★★

"Very Informative"

Richard H. · Rowley, MA
★★★★★

"Professional installation and a very durable product that looks great decades down the road. 3rd Interlock Roof and very happy"

Bruce M. · Epping, 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
★★★★★

"I thought they did a great job."

Tessy and Mark S. · Stoughton, MA
★★★★★

"Repair of my roof was very impressive. Couldn't tell where the repair was done. Very satisfied customer."

Gary D. · Jefferson, MA
★★★★☆

"You should stipulate that the subcontractor always have someone on site who speaks English. This didn't create an issue but it could have."

William and Lislie V. · Westford, MA
★★★★☆

"You should stipulate that the subcontractor always have someone on site who speaks English. This didn't create an issue but it could have."

William and Lislie V. · Westford, MA
★★★★★

"Everybody was great to work with highly professional. Any underlying damage was all taken care of and we love the roof."

Robert B. · Amston, CT
★★★★★

"Had an aluminum tile roof installed through Interlock. They were professional, fair, and kept the budget on exactly what was estimated. Happy with the results; would…"

Sasha L. · Dover, NH
★★★★★

"At first we were going to put a second layer down but we found after that there already was a second layer when the project was starting which delayed the project. An…"

Steven J. · Bow, NH
★★★★☆

"From the Salesman to the work crew, everyone was extremely professional. Although expensive I do feel I have made a great investment for my home."

Natalie M. · Brockton, MA
★★★★★

"Great work. He is the best"

Peter La M. · Derry, NH
★★★★★

"Jose and the technician communicated easily and reviewed future work with pricing. Detailed work and assessment."

Elizabeth S. · Framingham, MA
★★★★★

"They gave us a prompt response when our roof was damaged by a tree branch. Looks as good as new !"

John B. · Chester, NH
★★★★★

"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…"

Maureen G. · Athol, MA
★★★★★

"Nazar came to look at the concerns I had about my roof. He listened thoughtfully, evaluated the issues explained everything and promptly restored the ridge to my liking.…"

Paula C. · North Providence, RI
★★★★★

"Professional installation and a very durable product that looks great decades down the road. 3rd Interlock Roof and very happy"

Bruce M. · Epping, NH
★★★★★

"I thought they did a great job."

Tessy and Mark S. · Stoughton, MA
★★★★★

"I thought they did a great job."

Tessy and Mark S. · Stoughton, MA
★★★★★

"Repair of my roof was very impressive. Couldn't tell where the repair was done. Very satisfied customer."

Gary D. · Jefferson, MA
★★★★☆

"You should stipulate that the subcontractor always have someone on site who speaks English. This didn't create an issue but it could have."

William and Lislie V. · Westford, MA
★★★★★

"An excellent product and high quality installation."

John K. · Salem, NH
★★★★★

"Price assessment Reasonable price Price: $20,000+"

Thomas A. · North Attleboro, MA
★★★★★

"Very good communication from start to finish, always on time, a quality product. The crew installing the roof were very professional."

Thomas A. · North Attleboro, MA
★★★★★

"It's an excellent roofing system that is installed professionally. I will recommend if the occasion arises. We were very pleased with the workmanship, service and love…"

Timothy and Dorise A. · Deerfield, NH
★★★★★

"We have had an interlock roof for 8 years and love it! We have had many compliments on the appearance of our roof. Technicians are professional and service is prompt"

Monique G. · Pelham, NH
★★★★★

"Great work. He is the best"

Peter La M. · Derry, NH
★★★★★

"Jose and the technician communicated easily and reviewed future work with pricing. Detailed work and assessment."

Elizabeth S. · Framingham, MA
★★★★★

"They gave us a prompt response when our roof was damaged by a tree branch. Looks as good as new !"

John B. · Chester, NH
★★★★★

"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…"

Maureen G. · Athol, MA
★★★★★

"Nazar came to look at the concerns I had about my roof. He listened thoughtfully, evaluated the issues explained everything and promptly restored the ridge to my liking.…"

Paula C. · North Providence, RI
★★★★★

"Professional installation and a very durable product that looks great decades down the road. 3rd Interlock Roof and very happy"

Bruce M. · Epping, NH
★★★★★

"I thought they did a great job."

Tessy and Mark S. · Stoughton, MA
★★★★★

"I thought they did a great job."

Tessy and Mark S. · Stoughton, MA
★★★★★

"Repair of my roof was very impressive. Couldn't tell where the repair was done. Very satisfied customer."

Gary D. · Jefferson, MA
★★★★☆

"You should stipulate that the subcontractor always have someone on site who speaks English. This didn't create an issue but it could have."

William and Lislie V. · Westford, MA
★★★★★

"An excellent product and high quality installation."

John K. · Salem, NH
★★★★★

"Price assessment Reasonable price Price: $20,000+"

Thomas A. · North Attleboro, MA
★★★★★

"Very good communication from start to finish, always on time, a quality product. The crew installing the roof were very professional."

Thomas A. · North Attleboro, MA
★★★★★

"It's an excellent roofing system that is installed professionally. I will recommend if the occasion arises. We were very pleased with the workmanship, service and love…"

Timothy and Dorise A. · Deerfield, NH
★★★★★

"We have had an interlock roof for 8 years and love it! We have had many compliments on the appearance of our roof. Technicians are professional and service is prompt"

Monique G. · Pelham, NH
07 — Watch · Commercials aired on NBC · CBS · FOX

Watch real Interlock metal roofs in New England.
Don't take our word for it — press play.

Watch all videos →

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09 — How It Works

How our metal roofing estimate works: three steps, no surprises.

1

Tell us about your roof

60 seconds online or one phone call — a real local person replies within one business day.

2

A 30–90 minute visit

We measure, check ventilation and ice-dam history, and walk the options. No three-hour sales sit.

3

Your number, in writing

A fixed price and financing on paper. Take the time you need — zero pressure.

The other path is the one you already know: another asphalt roof at ~$30k, curling by year 12, replaced by year 20 — twice more in a lifetime of ownership. The 50-year math →

Let's plan your last roof.

In 30-90 minutes you'll know exactly what never re-roofing again costs — a fixed price in writing, the financing that fits it, and zero pressure. Free, from the local team serving all six New England states.

No-obligation assessment · Licensed in all six states · BBB A+ since 1999

Interlock metal roofing — get a free quote