UPVC Windows


Trinity Glazing's range of Energy Rated Windows has been designed to minimise heat loss, absorb heat from the sun and eliminate air leakage... the result is savings on home heating bills and reduced energy waste.

Energy Rated Windows are manufactured using the highest-spec Low Iron and Soft Coat glass, gas fill and Warm Edge Spacer. All windows are tested and certified by the British Standards Institute and approved by the Energy Saving Trust scheme.

The energy efficiency of windows are measured by Window Energy Ratings. WER's take into account the performance of both frame and glass known as a whole window ratings, and are determined by three main factors:

  • Thermal Transmittance (U-window): measures heat that is lost through the overall window - energy efficient windows reduce heat loss, therefore a lower u-window value means better energy efficiency
  • Heat Gain (G-window): measures the amount of heat that is absorbed from the sun - energy efficient windows transmit solar heat back into the room (helping to lower home-heating usage)
  • Air Leakage/Loss (L-factor): measures heat loss that occurs as a result of general air leakage - an energy efficient frame and glass will help reduce air leakage
windows edinburgh
windows edinburgh
windows edinburgh

Energy Rated Windows

  • Save Money On Your Home Heating Bills: your heating bills could be reduced by up to 20% per year
  • The Environment: energy efficient windows will help ensure you do "your bit" for the environment and could reduce your CO emissions by up to two tonnes
  • Current Building Regulations: energy efficient windows adhere to currently building regulations for new build properties and houses for sale or rent. If you are selling your home, energy rated windows could help add to the overall value of the property

Casement Windows

Casement windows are the most popular style of window due to their versatility, and are ideal for new builds and any direct window replacement. Casement windows are available in a range of styles, shapes and colour options. The range includes fixed light frames, side and top hung openings, and bay windows.

Tilt 'n' Turns

Tilt 'n' Turns are versatile, secure and easy to operate. The tilt position allows for ventilation, and the side hung facility allows for full opening into the room.

Key Features

  • 60 & 70mm Profile
  • Internally Glazed
  • 18 Frame Colours
  • "Easi-Gear" Hinge
  • Side Hung
  • Tilt Mechanism
  • Safe & Secure

French Windows

Brighten up your home with French windows. The opening allows unrestricted access and provides maximum ventilation.

Key Features

  • 60 & 70mm Profile
  • Chamfered or Sculptured Frame
  • Chamfered or Sculptured Beading
  • 18 Colour Choices, Plus White
  • Externally or Internally Glazed
  • 24mm Beading as Standard
  • Low Level Colour Coordinated Gaskets

Vertical Sliding Sash

The vertical sliding sash window range combines the elegance of traditional sash windows with the benefits of PVCu. Suitable for replacing existing timber sliders in period buildings and to new builds seeking to capture a traditional feel. The traditional style can be enhanced with the addition of Georgian or astrical bars and decorative horns. Available in white, white grain, oak, cream and black.

Manufactured from PVCu, vertical sliding sash windows are strong, will not rot or require repainting; this ensures that they retain their colour and shape throughout the years with the minimum of maintenance.

The Sash window is ideal for replacing existing timber sliders in period buildings, whilst at the same time providing character and traditional elegance in all new build houses.


  • If you require a more period-style look, there are extra options of Astrical Bar or Georgian Bar. Decorative sash horn options are also an elegant addition.
  • The vertical sliding sash window can be manufactured to your size requirements, and to give you extra choice, can be manufactured with an arched head. Sash windows ensure low maintenance, as unlike timber sliders, PVC will not rot or require repainting, and due to the tilt facility, can be easily cleaned.

Sliding Sash

The top and bottom sash on the window both feature the vertical sliding sash facility for both convenience and safety.


To ensure safety within the family home, there is the option of a child restrictor hinge for both tilting sashes, keeping your family safe and secure.


The vertical sliding sash window is internally glazed ensuring it is most secure frames. For extra security customers may also choose an additional high security lock.

Tilt Facility

Both sashes tilt inwards into the room to provide extra ventilation options and this also allows for easy maintenance.


The gaskets within the vertical sliding sashes sits flush within the frame which means that only a fraction of the gasket is visible. The result is that the appearance of the window is not distorted by thick, bulky lines.

Double Glazed

Vertical sliding sash windows are fitted with double glazed units as standard.


Unique addition to your home. Our investment in top of the range machinery ensures that frames can be manufactured to any shape.

Examples of Shapes Available:

  • Porthole Windows
  • Apex Windows
  • Gothic Arches
  • Arched Tilt 'n' Turns
  • Vertical Sliders With Arched Head