Independent roofvent manufacturer supplying to the trade and industry for the last 20 years.Nationwide supplier of PVCu and thermally broken aluminium roof vents and access vents, muntin bars, glass joiners, window actuators and electronic controls.Suppliers of complete vent systems to the UK fabricator so that they may have the flexibility to manufacture their own vents in house saving time and improving profit.All window systems are unique to and designed by Horizon.