Wholesale Roofing Ltd – Premium Waterproofing & Roofing Solutions for New Zealand
Wholesale Roofing Ltd is a nationwide supplier of certified roofing and waterproofing membranes, proudly based in Christchurch and serving contractors, architects, and homeowners across New Zealand. Founded and led by Trevor Keast, a Licensed Building Practitioner with over 30 years of industry expertise, Wholesale Roofing combines technical excellence with a strong commitment to quality and compliance.
Our diverse product portfolio covers SBS/APP bituminous membranes, TPO/PVC single-ply systems, below-ground tanking solutions, and our signature WaiSeal range of liquid membranes. Designed specifically for New Zealand’s toughest climates, WaiSeal products deliver watertight protection all year round:
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WaiSeal Pro – a seamless, self-priming silicone membrane for commercial and residential flat roofs, UV-stable and resistant to ponding water.
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WaiSeal Fire – a fire-rated wall coating that combines waterproofing, weather resistance, and color stability for mineral-based surfaces.
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WaiSeal DIY – an easy-to-use waterproofing solution for homeowners and small trades, offering professional-grade performance in a user-friendly format.
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WaiSeal Wall – a silicone-based vertical surface membrane that protects exterior facades from moisture ingress and weather damage.
By selling direct to contractors, builders, and end-users, Wholesale Roofing ensures competitive pricing, technical support, and fast nationwide delivery. Every system is backed by strong warranties, applicator training, and personal guidance from industry experts, giving our customers peace of mind that projects are built to last.
From commercial flat roof projects, infrastructure builds, and architectural designs to DIY deck repairs and exterior wall protection, Wholesale Roofing delivers solutions that meet compliance, reduce risk, and enhance durability. With hands-on expertise, certified quality, and innovative products, we are redefining waterproofing in New Zealand—seamless, reliable, and built for Kiwi conditions.
