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Spring Sliding Sash Windows

Engineered to the highest standards, TRC spring sash windows exude quality and style. They take their blueprint from the traditional sash window, yet this modern alternative is the go-to choice for many architects and designers.

Engineered to the highest standards, TRC spring sash windows exude quality and style. They take their blueprint from the traditional sash window, yet this modern alternative is the go-to choice for many architects and designers.

Modern spring sash windows operate in a smooth and seamless manner. By replacing the original cord with a spring-loaded mechanism, the windows are much easier to slim down. This enables sections of the frame to need less room for housing the extra reveal space (where the heavy weights and pulleys were once placed). This modern solution has become ideal for housing slimline window cavities.

Traditional and spring systems operate really well. The difficult part is which to choose?

Specifications

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Traditional Spring Sash Windows – Single
Traditional Spring Sash Windows – Double
Traditional Spring Sash Windows – Triple
Product guidance - as standard
Frame
55 x 160 mm (lining width x frame depth), manufactured using mortise and tenon joints, glued and mechanically fixed.
Sash
39 x 55 mm top rail and stiles, 90 x 55 mm bottom rail, 45 x 55 mm meeting rail.
Mullion/transom
110 mm wide (70 mm for triple sash with fixed outer sash).
Sill projection
35 mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm.
Staff / parting beads
Timber.
Wood moisture content
12-19%.
Glazing beads
Internally beaded.
Product specification
Material
Frame+Sashes Engineered redwood, Bottom Cill in Solid Hardwood - Standard. Engineered hardwood, Accoya, European oak.
Finish
Three coat spray applied factory finish using water based micro-porous paint/ stain.
Colour
White - RAL 9016 - Standard. Any RAL - from RAL classic range. Stain - from TRC stain range.
Glazing
Double glazed, 4/16/4 Low-E top sash – 4toughened/16/4 toughened bottom sash - Standard, Ug-value: 1.1 W/m²K; g-value: 0.52;
U-value
1.5 W/m²K - double glazed.
Perimeter spacer bars
White warm edge perimeter spacer with white warm edge integral spacers - Standard. Silver and Black spacer optional.
Frame profile moulding
White warm edge perimeter spacer with white warm edge integral spacers - Standard. Silver and Black spacer optional.
Trickle ventilation
Concealed through frame head trickle ventilator. EA 1700, 4400, 5000 mm²
Child restrictor
Angel lock standard. Traditional Sash Stop optional.
Glazing Bars
Applied 18 & 22mm glazing bars to external faces of double glazed unit
Downloads Downloads
Traditional Spring Sash Windows – Single
Traditional Spring Sash Windows – Double
Traditional Spring Sash Windows – Triple

How do spring
sash windows work?

Spring sash windows incorporate a simple, compact and modern spring balance mechanism in place of weights and pulleys. The system works as a concealed balance system, with a tube fitted inside the window frame containing a spiral-shaped rod. This connects to a spiral window sash spring that’s adjusted according to the weight of the sash, and so balances the sash.

The spring sash offers a smooth operating experience, sliding up and down with ease, and will stay open at any point in the same way a traditional cord-and-weight sash window would.

Even though the spring sash window mechanism isn’t designed as a mechanical opening device, when opening the window, it provides assistance. In the down-and-locked position, the sash will remain tightly closed.

It’s simple to use as well as secure.

Get in touch

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Testimonial

Both the works and resident liason were an excellent standard and the works were successfully completed to programme and budgets.

COLIN DAVIES   ARCUS CONSULTING LLP

TRC and their subcontractors SLG have been a pleasure to work with and the final result of the finished works look absolutely fantastic

Hayley Jones   Great Places Housing Group

I want to express my thanks, on record, to the whole project team for your efforts on this scheme. The project ran smoothly throughout.

Nick Smith   John Burke Associates

We had a very positive experience and have been very happy with the service and end results, from survey stage through to repair stage everything was done to a very good standard.

Gary Mcgregor   Equans

I consider that TRC Contracts have done a good job with the window refurbishment and have returned this building to a handsome property fitting of its listed status.

Debby Osman MCIAT, MFPWS   ghd partnership Ltd

The service and attention to detail was extremely good, operatives on site are always on time, diligent in their work, tidy and considerate which was of particular importance while working in an occupied house.

Alastair Gibson   Kebbell

They adapted well to the restrictions and Government guidance and worked really well with our customers to access their properties and complete the work efficiently and safely.

John Dwyer   Richmond Housing Partnership

There was a client walk around yesterday and they mentioned TRC ‘s safety standards were fantastic well done and keep it up!

Nahid   Wates
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