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

Verified by manufacturer 21 days ago

TRC Windows Third party certifications:
  • CHAS

    CHAS

    Certificate type

  • Constructionline

    Constructionline

    Certificate type

  • Certificate of Compliance

    Certificate type

  • Health & Safety Accreditation

    Health & Safety Accreditation

    Certificate type

  • BS EN 13501-1

    BS EN 13501-1

    Certificate type

Timber casement window restoration.

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+44 (0) 1858 469225 Website

Application

Suitable for timber windows.

Description

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.

General information

Color

Black

Brown

White

Other

Finish

Satin

Brass

Painted

Manufacturer guidance

All bare timber surfaces are primed with one coat of preservative primer.

Material

Timber

Shape

Circle

Square

Triangle

Other

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

Pr_30_59_98_96 Wood window unitsPrimary

CAWS

L10/10 Wood windows

L10/210 Wood windows

Specification data - Wood window units

Third-party certification

FSC Certified Timber.

Dimensions and configurations

Project specific.

Guidance for specification option:

See Draftfix data sheet for product size and dimensions and insert requirements.

Product performance

-

Weather performance

-

UK exposure category

To BS 6375-1, 2000 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 12210: 2000 Pa (Class A5).

Environmental

-

Frame to glazing ratio (maximum)

-

Manufacturer guidance

Depending on the size of the existing window to be refurbished. Consult manufacturer and insert requirements.

Background ventilation

-

Manufacturer guidance

Only applicable if adding trickle vents to existing windows as specified. Insert requirements.

Acoustic performance rating

Increases performance of a window by 6–10 dB (A).

Frame

-

Wood species

Unsorted Scandinavian Redwood.

Chain of custody

FSC.

Finish as delivered

Primed.

Ventilator

Titon.

Hardware

2 3" Butt Hinges, 1 Casement Stay, 1 Casement Fastener.

Operation

-

Type

Hinged opening outward/ inward as existing.

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.

Guidance for specification option:

RAL 9016 – Standard.

Glazing

12 mm on refurbished windows.

Sill replacement

Not required.

Required.

Manufacturer guidance

Whole sills or sill fronts can be replaced seamlessly to match the original window profile.

Fittings

Comprehensive collection of casement window furniture available in elegant, classic styles to suit all eras.

Guidance for specification option:

Casement stays, fasteners and locking devices available in a wide range of finishes, bespoke designs are available.

Repair and restoration

Timber repair.

Guidance for specification option:

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. 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.

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 around the perimeter of the opening casement window, ensuring thorough, effective sealing while still allowing the window to open freely.

Verified to BS 6375-1.

Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Recyclability

Yes

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

Third party certifications

CHAS

CHAS

CHAS standards

Constructionline

Constructionline

Constructionline Silver

Certificate of Compliance

Certificate of Compliance

Constructionline Social_Value

Health & Safety Accreditation

Health & Safety Accreditation

Health & Safety / Acclaim Accreditation

BS EN 13501-1

BS EN 13501-1

UW-Analysis of Heritage Casement Window

Literature

DRAFT
The UK's No 1 Sash Window Draught Proofing System

DRAFT The UK's No 1 Sash Window Draught Proofing System

Linear Weatherpile Info

Linear Weatherpile Info

Case studies

The Star and Garter, London

The Star and Garter, London

Knightsbridge, Knightsbridge Gate

Knightsbridge, Knightsbridge Gate

Manchester Town Hall

Manchester Town Hall

Royal Academy of Arts

Royal Academy of Arts

Trinity Primary Academy

Trinity Primary Academy

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