Metal roofing earns its place in specific situations, and Andover has plenty of them: low-slope additions that pond water, porch roofs buried under ice every winter, and homeowners in the Phillips Academy neighborhood or along Main Street who plan to stay put for decades. When done right, a metal roof looks beautiful, and lasts.
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Metal doesn’t forgive sloppy work the way asphalt can. A shingle out of place blends in, but a metal panel out of alignment is visible from the street and a huge problem. Every step matters more, which is why we plan metal projects differently from the start.
Plan on 2–3x the cost of a quality asphalt shingle roof. For most Andover homes, that puts a metal roof project somewhere between $30,000 and $60,000+, depending on the size of the area being covered, the complexity of the roofline, and the panel profile selected. The math works in metal’s favor if you’re staying in the home long enough to outlast two shingle roofs — roughly 40–50 years.
Start with the problem you’re trying to solve. If you have a low-slope section that ponds water or collects ice every winter, metal handles that better than shingles. If you’re tired of replacing a roof every 20 years and plan to stay in your Andover home long-term, the lifespan argument is real. But if your home has a standard steep-pitch colonial roof with no chronic issues, architectural shingles are usually the smarter spend. We’ll walk through the specifics during the consultation.
It can help significantly on the sections where it’s installed. Metal sheds snow before it has a chance to melt, refreeze, and dam up at the eaves. That said, metal alone doesn’t fix the root cause: inadequate attic ventilation, insulation and air sealing. We address both on every project. For Andover homes where ice dams hit the same porch roof or addition year after year, standing seam on that section is often the most effective long-term fix
This is actually our most common metal roofing application. A lot of Andover homes have a main roof that works fine with shingles and a secondary section (a porch, mudroom addition, or low-slope garage) where metal makes more sense. We install both systems and handle the transition flashing between them, which is the detail that matters most.
Because they aren’t built for homes. Exposed-fastener panels rely on screws driven through the face of the metal, sealed with rubber washers. Those washers dry out and crack within 10–15 years, and every screw hole becomes a potential leak. Standing seam panels interlock without any surface penetrations. For a residential roof that needs to last decades, we won’t install a system with a built-in failure point.
A properly installed standing seam roof typically lasts 40–50+ years. The panels resist wind, impact, and fire better than asphalt, and they don’t develop the moss or algae staining that shows up on shaded Andover roofs under mature tree canopy. Maintenance is minimal; occasional inspection of flashing and sealant points, but no shingle replacements or granule loss to worry about.
D&G Exteriors is CertainTeed Master Craftsman certified, Google Guaranteed, BBB Accredited with an A+ rating, and NRCA Affiliated. Our primary certification is in asphalt roofing systems through CertainTeed, but the installation standards, project management, and quality control we bring to metal work are identical.
