Roofing Ventilation Online offers the Harcon Building Products range, a complete roof vent solution to all roof condensation risks. Our products include Cowl Vents, Roofline Vents, Ridge Vents and all types of Eaves Vents for all slate and tile roofs. Our Harcon range of Valley Troughs and Gutters are manufactured in GRP as an economic and long lasting alternative to using lead.

We also supply Roofing Sheet, Rooflights, Roofline Products and Guttering.
Roofing Ventilation Online (part of the Drainage Central Group) is here to provide quality products at competitive prices to its customers across the United Kingdom.
Our Supplier, Ariel Plastics, is part of the Brett Martin Group, one of the world's leading Polycarbonate Sheet manufacturers and the UK's market leading Rooflight Manufacturer.