Ventrolla’s preferred double glazing solution for traditional timber sash windows is to replace the existing sashes with slim double glazed sashes, fitted into the existing box frame. This minimises the disruption and cost of redecoration, thus reducing the overall cost of the work.
Alternatively, we can manufacture and supply complete new double glazed windows that comply with Part L of the Building Regulations.
Ventrolla’s range of timber window energy saving measures includes replacement timber double glazed sashes that, in conjunction with our renowned Perimeter Sealing System (VPSS), offer customers a combination of high performance, comfort and style.
All the energy performance of a modern window while retaining the authentic look and charm.