BBA Agrément Certificate
Sash window renovation (timber)
Sash windows, timber windows
Industry-leading wooden window repairs
Preserving the unique heritage and charm of period timber windows really is a priority to us, and with the right care and attention, original timber window frames can provide a lifetime of enjoyment. So, where possible, we will always suggest renovation over replacement via our tried and tested Ventrolla Perimeter Sealing System (VPSSS), while expertly repairing and replacing rotten sections with ease and finesse.
So, if your project has original timber windows that are draughty, rattling, or inefficient, we're sure our industry-leading window renovation services can help bring your timber windows back to life. After all, there’s no denying that timeless timber window frames play a crucial role in defining the character of period building facades and their interiors – so why should you or your client’s property be any different?
Ventrolla offer a sash window renovation service that negates the need to fully replace existing timber sash windows. This process involved renovating the existing windows and then installing Ventrolla's unique Perimeter Sealing System (VPSS) to eliminate draughts, and improving efficiency, so that all the charm and original character of sash windows can be retained.
Traditionally, a sash window requires a 3 mm gap around the sashes for functionality. Inevitably, this gap allows in draughts, dust and noise and is the source of annoying rattles. The installation into each window of the patented Ventrolla Perimeter Sealing System (VPSS) seals this gap and actually improves on the original by:
All work is done from inside the building meaning so scaffolding is not always required – speak to our team to find out more. Windows are always left secure and weatherproof overnight.
Renovation and performance upgrade service:
Perimeter sealing system performance:
Ventrolla Wood Repair:
Ventrolla wood repairs are undertaken using Ventrolla VR90, formulated to give long-lasting wood repairs beyond those normally carried out using conventional polyester wood fillers. VR90 is a patented two-part resin system and is designed to be used to impart the original strength to sash tenon joints, fill large cavities in sills and act as a powerful adhesive. It completely bonds with the parent wood and flexes when the wood contracts or expands. To achieve this bond, all decayed wood is removed exposing only sound wood. This is then stabilised using VR90 WS solution which penetrates the wood fibres to attain the permanent anchorage for the subsequently applied VR90 filler.
Windows can be sealed shut internally and externally with the Ventrolla Sealing and Pointing system VS10.
L10/10 Wood windows
L10/210 Wood windows
British Board of Agrément (test report number 2756).
To BS EN 12207, Class 3 and BS 6375: 1-2009 (600 Pa) to withstand 71 mph winds.
Resistance to wind load
Draught strips tested to BS 7386.
Acoustic performance rating
Independently tested and proven to fall within the 6–10 dB noise reduction range.
Performance verified by Hanns Tucker Acoustic Engineers.
Finish as delivered
Exposed bare wood is painted with white acrylic primer to BS 5082.
Sash removal system
The Sash Removal System is a unique hidden system which allows the quick and easy removal of both top and bottom sashes internally. Staff beads can easily be detached from the window giving access to the bottom sash. Using the plastic cord holder, the sash cord can be unclipped from the window which allows the bottom sash to be completely removed. The parting beads can also be removed, allowing access to the top sash. The Ventrolla sash removal system allows all components of the window to be removed internally and brought into the building for convenient maintenance and painting, thereby avoiding the need for external scaffolding.
Sill replacement and lower box assembly
Replacement sills can be provided to match original profiles. The original bottom section of the box linings is removed and Sill trenches are cut, the outer and inner linings are spliced to facilitate a flush and water tight finish.
A wide range of specialist locks and catches are available.