123InstallatieMaterialen is a specialist supplier of installation materials for both homeowners and trade professionals, offering a broad range of products for projects throughout the home. Its online catalogue covers heating, ventilation, boilers, electrical supplies, plumbing and sanitaryware, finishing materials, and tools. Customers can shop for underfloor heating, heat pumps, radiators, air-conditioning equipment, ventilation ducts, water heaters, fittings, pipe systems, taps, toilets, showers, baths, bathroom furniture, tile adhesives, grout, sealants, and installation accessories.

The brand supports projects of different sizes, from individual household upgrades to professional installation work. Customers can request a quotation or advice, and businesses can apply for trade customer status, with deferred payment available to business customers. The company highlights fast delivery, more than 20 years of experience, and free shipping on orders over €200, subject to its stated conditions. Customer support is available by chat and telephone. By bringing products for heating, water, ventilation, electrical work, and bathrooms together in one extensive range, 123InstallatieMaterialen aims to make sourcing supplies for installation projects straightforward.