Verified by manufacturer 21 days ago
CHAS
Certificate type
Constructionline
Certificate type
Certificate of Compliance
Certificate type
Health & Safety Accreditation
Certificate type
BM Trada
Certificate type
BS EN 13501-1
Certificate type
Timber sash window restoration.
Restoration of existing timber windows in need of repair and upgrade.
For over 25 years we have breathed new life into countless well-loved historic buildings. We are experts in timber casement and sash window restoration and are proud to be trusted and recommended by the UK’s most respected heritage architects and developers.
Time eventually takes its toll on historic timber. Ageing affects us all! We have undertaken window and timber repairs on historic buildings across the UK and recognise heritage building principles such as The Society for the Protection of Ancient Buildings.
Our expert restoration work is vital in maintaining structural integrity, and we have unrivalled experience of working with historic timber for listed buildings and conservation areas.
Our ethos is to repair timber whenever possible. Sometimes we recommend a window survey to determine whether it’s better to repair or replace. Many TRC projects have a mix of repaired and replacement windows.
And while our core expertise is in heritage sash window restoration, we can also carry out timber repairs and replacement joinery work to fascia boards, soffits, external timber beams and structural joists and columns.
Our work combines unbeatable craftsmanship with the finest materials, latest technology and three decades of market-leading experience. Speak to us today to find out how we can help.
Where timber repairs are viable, we use a professional resin repair system called Repair Care. Being one of the most sustainable innovations this is a versatile system that provides fast and durable timber repairs. In the skilled hands of our window restorers, the repairs are seamless once finished and painted.
Draught-proofing isn’t just about keeping the cold out. Our expert sash window restoration specialists add insulation via hidden, rebated sealing strips in key places around the window, putting a stop to rattles too.
As a result, air leakage is reduced by up to 50%, and the sash opens and closes smoothly with minimum effort.
And with better insulation comes better thermal performance, as well as fewer occurrences of dirt, dust and rain ingress. That’s complete insulation from cold, leaks, and premature timber decay and damage, significant noise reduction also.
Our comprehensive draught-proofing ticks all the boxes (and fills all the gaps) - the benefits are:
Our performance upgrade service includes:
Timber Repairs:
Replacement double(either single) glazing:
Perimeter sealing system performance:
Equivalent to withstand 71 mph winds, independently tested to BS 6375 Part 1 performance of windows and doors, part 1 classification for weathertightness and guidance on selection and specification.
Color | Black Brown White Other |
Finish | Polished Satin Brass Painted Manufacturer guidance
|
Material | Timber |
Shape | Square Circle |
Length | Bespoke Guidance for specification option: Project specific. |
Width | Bespoke Guidance for specification option: Project specific. |
Height | Bespoke Guidance for specification option: Project specific. |
Warranty description | Five year |
Uniclass | |
CAWS | L10/10 Wood windows L10/210 Wood windows |
Third-party certification | FSC Certified Timber. |
Dimensions and configurations | As drawing.Guidance for specification option: As per Draftfix drawings. Consult manufacturer. |
Product performance | |
Weather performance | |
UK exposure category | To BS 6375-1, 800 Pa. |
Air permeability | To BS EN 12207: 600 Pa (Class 3). |
Watertightness | To BS EN 12208: Result: 250 Pa (Class 6A). |
Resistance to wind load | To BS EN 12211: 2000 Pa, Class A5. |
Environmental | |
Acoustic performance rating | Increases performance of a window by 6–10 dB (A). |
Thermal | |
Whole window U-value | 1.65–1.77 W/m2K.Manufacturer guidance13 mm unit - typical window size 1.230 mm x 1.480 mm. |
Frame | |
Wood species | Unsorted Scandinavian Redwood. |
Chain of custody | FSC. |
Finish as delivered | Primed. |
Ventilator | Titon. |
Hardware | 4 Pulley Wheels; 1 Sash Catch; 2 Sash lifts; 2 Sash Rola Stops. |
Operation | |
Type | Manual.Guidance for specification option: Sliding sash. |
Fixing features | Project specific.Guidance for specification option: Consult manufacturer. |
Execution | Manufacturer guidanceFixing of wood frames. |
Frame colour/ finish | RAL. Guidance for specification option: Insert requirement from RAL classic range. Stain. Guidance for specification option: Insert requirement from TRC stain range. White - RAL 9016. Guidance for specification option: Standard. |
Glazing | Single glazed. Double glazed. |
Colour/ Finish | Brass. Polished chrome. Satin chrome. Special order. Guidance for specification option: Insert requirements, consult with manufacturer for information. |
Fittings | Comprehensive collection of sash window furniture available in elegant, classic styles to suit all eras. Guidance for specification option: Pulleys, handles, fasteners, lifts and stops available in a wide range of finishes, bespoke designs are available. |
Sash removal system | Bespoke. Manufacturer guidance
|
Repair and restoration | Timber repair. Guidance for specification option: Repair products from Repaircare International. Decayed and damaged timber is gently prised out from windows, frames and sills, retaining as much of the original wood as possible. Where decay is severe, sections of timber is replaced with new joinery work to closely match the original. Whole cills or cill fronts can be replaced seamlessly to match the original window profile. The remaining timber is treated with a multi-stage epoxy resin repair system called Repair Care Smooth. Using specialist tools, the surface of the repair is carefully smoothed to match the shape of the original timber, so that it blends seamlessly. Finally, the window is stained or painted as required. |
Weatherpiles | Draught proofing, linear weatherpile products. Guidance for specification option: Draftfix system which typically uses a weather pile with a central fin, fixed into a plastic carrier which is rebated into the casement. The weather pile prevents dust and dirt ingress, and the central fin contributes to air tightness. All the seals are rebated into the casement, which means no unsightly, protruding, face-fixed seals. Draught proofing is applied to three places around a sash window; the staff bead, on the bottom rail of the lower sash, also known as the sash stop. The meeting rail, where the two sashes overlap across the centre of the window and the parting bead, at the top of the upper sash, in the centre of the frame. Verified to BS 6375-1. |
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 0.5 kg CO₂ eq/kg Self declared |
Recyclability | Yes |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
CHAS
CHAS standards
Constructionline
Constructionline Silver
Certificate of Compliance
Constructionline Social_Value
Health & Safety Accreditation
Health & Safety / Acclaim Accreditation
BM Trada
Heritage Sash Box window acoustic performance to BS EN ISO 10140-2:2010
BS EN 13501-1
UW-Analysis of Heritage Box Sash Window
Heritage Casement Windows - Timber Casement Window
Heritage Sash Windows - Double - Timber Sash Window
Heritage Sash Windows - Single - Timber Sash Window
Heritage Sash Windows - Triple
Traditional Box Sash Windows - Double - Timber Sash Window
Traditional Box Sash Windows - Single - Timber sash window
Traditional Box Sash Windows - Triple - Timber Sash Window
Traditional Flush Casement Timber Windows - Direct Glazed
Traditional Flush Casement Timber Windows - Double Direct Glazed
Traditional Flush Casement Timber Windows - Double Side Hung