Yes — certified James Hardie siding contractors offer both manufacturer and workmanship warranties. The specific protections depend on the contractor’s certification level.
Yes — certified James Hardie siding contractors offer both manufacturer and workmanship warranties. The specific protections depend on the contractor’s certification level.
What Warranty Coverage Actually Looks Like
• 30-Year Nonprorated Manufacturer Warranty: James Hardie backs Hardie Board with a 30-year nonprorated limited warranty on materials. Coverage doesn’t shrink over time the way a prorated warranty does.
• 15-Year ColorPlus Finish Warranty: ColorPlus Technology carries its own 15-year warranty against fading, chipping, and peeling. Brookline homeowners won’t need to repaint for at least a decade and a half.
• Elite Preferred Status Unlocks Full Coverage: Only Elite Preferred Contractors like Coastal Windows & Exteriors can offer the full warranty package. Hiring a non-certified installer may void your manufacturer coverage entirely.
• Workmanship Warranty: Beyond the manufacturer coverage, Coastal Windows & Exteriors stands behind our installation work. Our team’s craftsmanship is something we’re proud to guarantee.
• Service Excellence Award Accountability: The Service Excellence Award isn’t handed out — it’s earned through documented customer satisfaction and installation quality. That track record means something when it comes to warranty claims.
• Transferable Protection: James Hardie’s limited warranty is transferable, which adds value when you sell your Brookline home. Buyers notice a documented warranty from a recognized product brand.
• 7,000+ Installs of Evidence: With over 7,000 installations completed across MA, NH, and ME, our warranty track record is backed by real numbers — not promises.
Our Recommendations
Top Recommendation: Always hire an Elite Preferred Certified contractor — it’s the only way to secure the full James Hardie manufacturer warranty and workmanship guarantee.
Best for Long-Term Value: Elite Preferred status paired with ColorPlus Technology protects both your siding and your home’s resale value in one package.
Best for Peace of Mind: Request written copies of both the manufacturer and workmanship warranties before any project begins.
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Sources: Coastal Windows & Exteriors internal data — 7,000+ installations completed across MA, NH, and ME Cost vs Value Report by Remodeling — 121% ROI for fiber cement siding
Last Updated: March 2026
