Aluminum Metal Roofing
Why aluminum is the right lifetime roof for New England — rust-proof in coastal salt air, lightweight, ~95% recycled, and built to shed snow and resist ice dams.
Read furtherNew England's lifetime metal roof
The last roof your home will ever need
Interlock® aluminum interlocking roofs — engineered to never re-roof again — installed across CT, MA, ME, NH, RI & VT and backed by a Lifetime Limited 50-Year Transferable Warranty.
Lifetime
Limited 50-yr transferable warranty
18+ yr
Documented roofs
6
New England states
~95%
Recycled aluminum
Interlock New England
Contact
Address
7–25 Walpole Park S.
Walpole, MA 02081
United States
Toll-free
Office hours
Mon–Fri, 9:00–5:00 · Sat–Sun by appointment
Get in touch
Let’s plan your lifetime roof.
Whether you’re planning a new build, renovation, or commercial project, we’re ready to review your requirements and provide clear, practical next steps.
Send us a messageWhy Interlock
We’re here to raise the standard of New England roofing with lifetime aluminum systems and the Alunar® cool-roof coating.
Our work is guided by long-term thinking—creating spaces that perform reliably today and remain relevant, efficient, and sustainable over time.
Lifetime Aluminum Roofing
Four-way interlocking aluminum systems — slate, cedar, shake, Mediterranean tile, standing seam, and solid copper — engineered to never re-roof again, backed by a Lifetime Limited 50-Year Transferable Warranty.
Built for New England Weather
Coastal salt air, hurricane-force winds, Class IV hail, and the freeze-thaw and ice dams that destroy ordinary roofs — our aluminum sheds snow, never rusts, and lasts a lifetime.
What we build and how we deliver
Thoughtfully planned construction services, built to perform and endure.
From renovations to full builds, we manage the details—so your project stays on schedule and built to last.
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Slate Profile
The look of quarried New England slate in rust-proof aluminum — 7× lighter, no structural reinforcement, and a Lifetime Limited 50-Year Transferable Warranty.
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Standing Seam
Clean, modern vertical panels with concealed fasteners — engineered for New England snow shedding, coastal durability, and a lifetime of performance.
Read furtherInterlock New England
Trusted across New England since 1999
From historic New England homes to the coast,we install lifetime aluminum metal roofs built to outlast the region’s harshest weather.
Our work is grounded in transparent communication, disciplined planning, and consistent execution. Every project — regardless of size — is delivered with the same attention to detail and accountability.
25+
Years in business
5,363
Homes protected
6
New England states
A construction partner trusted by homeowners, developers, and commercial clients alike
Real projects, real partners, and results delivered through disciplined planning and execution.
Bastion delivered our home build exactly as promised. Clear timelines, consistent communication, and quality workmanship throughout. The attention to detail on-site was evident from start to finish.
Sarah Johnson
Homeowner
Our office renovation was completed on schedule and without disruption to daily operations. Bastion managed the process professionally and delivered a space that works better for our team.
Michael Chen
CEO
Bastion handled our hotel build with precision and accountability. They understood the operational requirements of hospitality and delivered a result that met both design and durability standards.
Emma Rodriguez
Hotel Owner
From permitting to final handover, Bastion ran our restaurant project efficiently and transparently. The build quality is solid, and the project stayed on budget.
David Park
Restaurant Owner
Bastion translated our retail requirements into a practical, well-executed build. The team was responsive, organized, and delivered a space that performs as well as it looks.
Lisa Thompson
Retail Owner
Their experience in commercial construction shows. Bastion took control of a complex renovation and delivered a modern, functional workspace without unnecessary delays or surprises.
Robert Martinez
Operations Director
Interlock New England
See all projectsRecent builds that balance performance, craft, and longevity.
Explore a selection of projects across sectors—each delivered with precise planning, resilient materials, and reliable execution.
Transportation Infrastructure • Seattle, WA • 2025
Redwood Transit Hub
A multimodal transit hub combining rail, bus, and retail in a durable, high-capacity structure designed for heavy daily usage.
View project
Commercial Construction • Los Angeles, CA • 2026
Westfield Commercial Complex
A multi-phase commercial development delivering modern office and retail spaces with a focus on durability, efficiency, and long-term value.
View project