Waterproofing

Protect your home or project with Sika’s trusted waterproofing solutions. Whether you're sealing a leaking basement, waterproofing a wet area, or protecting exterior surfaces, Sika offers a full range of high-performance waterproofing products suitable for both DIYers and trade professionals. From liquid membranes and bituminous sealants to waterstops and flexible seal systems, our waterproofing range is designed to deliver long-lasting protection against water ingress. Discover why builders and homeowners across New Zealand trust Sika for reliable waterproofing solutions.