TRC Casement Window Renovation | Refurbishment | Repair with High Performance Draught Proofing and replacement double or single glazing - Restoration - Restoration

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 and heritage casement windows as well.

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 casement 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 casement 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:

• Solves draughts and rattles
• Reduces dirt, dust and rain ingress
• Hidden, rebated seals, not surface-mounted
• Tested for water permeability, air tightness and wind resistance
• Smoother, easier window operation
• Noise reduction - soundproofing
• Reliably installed by our expert window restorers

Our casement performance upgrade service includes:

1.                 BASELINE OVERHAUL

• Clean down to remove built-up of debris and dust.
• Remove all excess paint from around sashes, frame styles.
• Strip failing paint from sills and the mullions and all bottom rails of the sashes.

2.                 SIZE & SHAPE RESTORATION

• Remove opener sashes, ease sashes or pack sashes as necessary to ensure correct operation and dimensions.
• Reinstate the shape of any rebates, groves, weather drips after easing completed.

3.                 DRAUGHT EXCLUSION

• Rebate sashes to accept a draught exclusion strip.
• Install draught exclusion pile carrier with brush weather strip.

4.                 IRONMONGERY

• Existing ironmongery removal, refurbishment and re-fit as option.
• Install new ironmongery as option.

5.                 DECORATION

• Prime all bare timber surfaces of our repairs using water-based primer undercoat.

Timber Repairs:

1. Strip paint from sills and approximately 300 mm up to the mullions and all bottom rails of the sashes.
2. Remove all timber rot and reform using Repair Care Dry Flex (an elastic repair compound).
3. Renew sills (Sapele or any else) or splice where necessary.
4. Seal all sill/mullion junctions and open joints to the bottom of the sashes by means of a conservation joint.
5. Seal any open-end grains.
6. Round of sharp arises.
7. Renew back/front putties on bottom rail or elsewhere required.
8. Sand down and prepare for painting our areas of our repair.

Replacement double(either single) glazing:

1. Remove existing putty and glass.
2. Remove remaining fixing elements – pins, push points, sprigs.
3. Rebate rails, stiles, glazing bars to the required depth.
4. Install new Heritage Slim 12mm Double Glazing or other slim Double Glazing units using required bedding and new sprigs.
5. Apply modern alternative putty or beads.

 Perimeter sealing system performance:

• Air Permeability BS EN 1026: 2000 / BS EN 12207 : 200 600 Pa (Class3)
• Watertightness BS EN 1027 :2000 / BS EN 12208:2000  250 Pa (Class 6A)
• Wind Resistance BS EN 12211:2000 / BS EN 12210:200 2000 Pa (Class A5)
• Exposure Category BS 6375: Part 1:2009 2000 Pa
• Acoustic: Increases performance of a window by 6–10 dB

Equivalent to withstand 71 mph winds, independently tested to BS6375 Part 1 performance of windows and doors, part 1 classification for weathertightness and guidance on selection and specification.