Isolatie Gigant is a Dutch webshop specialising in affordable insulation materials for building and renovation projects. Its range covers insulation for roofs, walls and floors, with products available in various sizes and thicknesses. Customers can choose from PIR boards, including A- and B-grade options, Knauf and Ursa glass wool, Rockwool stone wool, PUR insulation and application products, vapour-control and professional films, plasterboard, and installation accessories such as screws, cutting tools and distribution plates. The company also offers insulation and mounting foam, PUR guns and related supplies.

Isolatie Gigant says it holds substantial stock and buys in large quantities to offer competitive prices. Some products are B- or BC-grade and may have minor imperfections that, according to the company, do not affect their insulating performance. Orders can be delivered nationwide, with delivery typically within three working days; customers may pay on delivery by card or cash. Collection is available by appointment at its location in Augustinusga, including evening appointments when arranged.