Explore our sash window upgrade system, glazing options, and finishing details, chosen to improve comfort, security, and long-term performance.
Our products are designed to improve the performance of traditional timber sash windows while keeping the original look. We develop our own design‑registered products and use the highest quality materials, with many components manufactured specifically for us in the UK. We upgrade existing windows with our design‑registered Solutions Brush Pile System™ to reduce draughts, rattles, and noise, and we use Accoya™ timber for high‑quality joinery and repairs where long‑term stability and longevity matter most.
You can view the Accoya fact sheet here.
Our brush pile seals are made from 100% polypropylene with a central weather fin, helping sash windows and doors slide smoothly while improving draught proofing and weather protection.
Silicone-treated and UV protected, the individual fibres flex to follow uneven surfaces — ideal for the worn rails often found on traditional period windows.
For long-lasting results, we don’t use double-sided taped brush carriers, and we avoid plastic parting beads, which can spoil the authentic look of period sash windows.
You can view the Solutions Brush Pile System™ fact sheet here.
Our design‑registered Solutions Brush Pile System™ upgrades existing sash windows without changing their appearance. It is built to reduce draughts, rattles, and outside noise while improving comfort and day‑to‑day performance.
What it helps with
Draught proofing and heat loss
Rattling and stiff sliding sashes
Noise reduction and smoother operation
We use Accoya™ timber for joinery and timber repairs because it offers exceptional stability and longevity. It is ideal for sash window work where durability, a quality finish, and long-term performance matter.
Why it matters
Excellent dimensional stability
Long service life for external joinery
Strong choice for repairs and replacement sections
We’re best known for sliding sash windows, but we can also improve traditional timber casement windows and exterior doors. Our hidden brush pile system and overhaul service help reduce draughts and noise while keeping the original character.
What it helps with:
Draught reduction
Less external noise through gaps
Better closing fit and smoother operation
When replacement is needed, we manufacture new replica sash windows designed to match period detailing, while improving insulation with gas‑filled double glazing. These units can be made to replicate original section sizes, glazing bars, and mouldings, with the option of Vaccum glazing.
Benefits
Improved thermal performance
Better noise reduction than single glazing
Period‑style appearance with modern glazing options
We offer a range of glazing options for sash windows, including safety and security upgrades, noise‑reducing glass, Vacuum glazing and traditional styles suited to period properties.
Options include
Toughened safety glass
Laminated security glass
Acoustic glass
Traditional etched glass
Recycled period glass
Leaded lights
Double glazing (made to match existing detailing)
Vacuum glazing is one of the most advanced solutions available for improving the thermal performance of traditional sash windows—without compromising their original appearance.
Unlike standard double glazing, vacuum glazing uses a near-invisible vacuum between two panes of glass. This dramatically reduces heat transfer, delivering outstanding insulation in a unit that’s almost as slim as single glazing.
Why Choose Vacuum Glazing?
Vacuum glazing is particularly well-suited to:
Listed buildings
Conservation areas
Period properties
Georgian, Victorian, and Edwardian sash windows
It allows homeowners to meet modern energy efficiency standards while retaining the original charm of their windows.
Our High‑performance epoxy repair compound bonds with the fibre’s of the existing timber and enables us to carry out durable, long lasting repairs and bonds.
What it helps with
Repairing areas of rot in sills
Repairing and strengthening tenon joints
Bonding new sections of timber to the existing
Finish your sash windows with quality ironmongery and security locks in a range of finishes. These upgrades support smooth everyday use and added peace of mind, without compromising the traditional look.
Common upgrades
Period‑style hardware
Improved sash security locks
Coordinated finishes to suit the property
The Solutions Brush Pile System™ is a design registered system developed to improve the performance and energy efficiency of sash windows without altering their original appearance.
No, the Solutions Brush Pile System™ will not change the appearance of your windows. Our parting beads are manufactured from Accoya™ timber and match the original and our staff beads manufactured from Yellow pine also match the original.
Accoya™ has a minimum life expectancy of 60 years against any type of rot and insect attack and as such has the longest guaranteed lifespan of any timber. Accoya™ is the most environmentally friendly timber on the planet and is CO2 negative over its full life cycle. It is also incredibly stable and so holds paint systems for much longer than other timbers leading to less frequent redecoration.
We offer a wide range of glazing options based on a balance between thermal requirements and conservation requirements.
Vacuum glazing- At only 8.3mm thick, this new innovative glass offers a U value of 0.4 W/m²K which exceeds triple glazing. It also has a much longer life expectancy at 50 years plus!
Double glazing – We offer a wide range of gas filled double glazing options including double glazed units to meet current building regulation requirements and units to suit conservation area and listed building needs.
Single glazing – When reglazing existing single pane glass we have options available which include- recycled or replica period glass, toughened and laminated safety and security glass, traditional etched glass patterns together with contemporary obscured glass for privacy.
The best option to significantly reduce draughts and stop rattling is to overhaul, service and install the Solutions Brush Pile System™.
Yes, there are generally two options available;
1. replace your sashes within their existing frame with new replica Accoya™ sashes glazed with thermally efficient double glazed units. This is a popular choice as it doesn’t disturb existing shutters/ internal panels/ internal plasterwork or decorations.
2. Replace the whole window with a new replica, Accoya™ window glazed with thermally efficient double glazed units.
Yes, a large portion of the noise penetrating your windows is through the airgaps around the perimeter and by installing the Solutions Brush Pile System™ these gaps can be sealed thus reducing noise.
Yes, all of the products contained within the Solutions Brush Pile System™ are suitable for listed buildings and conservation areas.
For help on this, check out our Full planning Guide.
