Jan Wit & zn | Alkmaar is a trusted brand that has been assisting installers, plumbers, and roofers for over 60 years. We are here to help you with all your needs. Whether you are a business or an installer, we offer various benefits and perks.

Enjoy free shipping on all orders over €100 and get your order sent out today if placed before 16:00. As a business customer, you can also sign up for exclusive benefits. We offer a wide range of products to meet your needs, including CV Ketel products such as Aansluitpakket, Expansievat, Intergas, Remeha, Vulslang, and more.

Additionally, we now offer electric boilers for those who prefer not to use traditional heating methods. Jan Wit & zn | Alkmaar has over 60 years of experience, and our customers can vouch for our excellent service. We provide all the necessary tools for installation, including Dakdoorvoer products like cv-ketel, EPDM, Rookgas, Ventilatie, and more.

We have the largest assortment of Dakdoorvoeren online, catering to all sizes and needs. No matter the size or type of your project, we have the solution for you. Our satisfied customers can attest to our expertise.

We also offer custom-made products if needed. For all your roofing needs, we have a range of Dak & Toebehoren products, including Boldraadrooster, Dakbedekking, Dakventilatoren, and more. From cable ducts to rain covers, we have everything you need for your roof, with extra discounts available.

Trust in our over 60 years of experience. Jan Wit & zn | Alkmaar is here to help you with all your roofing and installation needs