• Energy Efficient
  • High Security
  • Many Colour Options
  • Choice of Profiles
  • Many Design Choices
  • Quality Installations

Windows in Preston

We offer the best range of UPVC windows in Preston with no compromise on security. We also offer a 10-year insurance backed guarantee on all of our installations, as well as being a member of FENSA.

FENSA is a gold standard certificate for replacement windows and doors. This is a proven brand trusted by consumers and local authorities ... over 6 million homeowners have FENSA certificates which comply with Building Regulations..

Range of Windows

Our wide range of windows include, standard casement with large or slim outer, tilt and turn style, sliding sash and mock sash. We also offer a full range of shaped windows covering most sizes and designs.

A Rated Windows in Preston

Lee Kelly UPVC based in Preston can now offer 'A' rated windows.

What does this mean?

The whole window is rated on its energy efficiency of the whole frame including glass. It measures thermal loss, solar gain and air leakage.

Glass make up

A rated glass

  • Configuration: 4-20-4
  • Glass: 4mm Diamant outer pane and 4mm Planitherm Total inner pane (coating to face 3)
  • Cavity fill: Argon (90% concentration)
  • Spacer bar: Swisspacer V

B rated glass

  • Configuration: 4-20-4
  • Glass: 4mm Planilux outer pane and 4mm Planitherm Total inner pane (coating to face 3)
  • Cavity fill: Argon (90% concentration)
  • Spacer bar: Swisspacer V

See chart below on money saved on installing energy rated windows:

Property Type Existing Window 1st Year Saving £ 20 Year Saving £ 20 Year Tonnes CO2
Detached (20m²) Single £247.11 £14,153 40.56
Double £193.67 £11,092 31.79
Semi (15m²) Single £185.33 £10,615 30.42
Double £145.26 £8,320 23.84
Terraced (12m²) Single £148.27 £8,429 24.34
Double £116.20 £6,655 19.07
All Housing All £2.8 Billion £160 Billion 281 Million


There are many glazing options to choose from for all windows. These include several leaded designs, Georgian bar, coloured fanlights and bevelled fanlights. All of our windows also have a choice of handle colours in white, gold, silver or black.

Energy Efficient

All of our domestic installations are fitted with energy efficient Low E Glass as standard to keep fuel costs down. We will also use toughened glass where required.

Optional Extras

Fire escapes, easy clean hinges, trickle vents and shoot bolts for added security, are all available on our installations.

All of our installations are carried out with the utmost care by our fully trained and experienced fitters. They are always polite, tidy and cover the installation with the least amount of hassle to the customer. All installations have a 10 year insurance back guarantee and are covered with a FENSA certificate.

What Are 'A' Rated Windows?

Window Energy Labels work in the same way as household appliance energy labels for fridges, freezers and washing machines. The Window Energy Rating labelling scheme was launched in the UK by the British Fenestration Rating Council (BFRC) a government supported independent body. By using information contained on the energy label, consumers can reliably compare the energy efficiencies of one product with another.

'A' Rated Windows Have Zero Heat Loss

WER's rate the energy efficiency of windows from A to G

Windows are rated according to the new Window Energy Ratings (WER's), a system which has been introduced to meet the challenge of climate change and to help lower the cost of energy bills and which has been endorsed by the Energy Savings Trust. At present this is a voluntary system, but will become a legal requirement for all new build windows by October 2010.

WERs are a sophisticated ranking system, judging not just the energy efficiency of the frame or glass, but of the whole windows. WERs measure a window's energy performance rating how much heat the window retains, how much heat a window gains through capturing sunlight and how little air is lost through the window.

Frame Colours

We have a large range of frame colours to choose from, colours available are Anthracite Grey, Beck Brown, Chartwell Green, Cream, Golden Oak, Irish Oak, Rosewood and White. We also offer a wide range of coloured frames for that contemporary look using any RAL or BS colours and these are available with a 10 year discolouration guarantee.

Popular colours (other colours available):