Rated window products
Working closely with our systems company Duraflex means that all products manufactured by London Windows Direct comply with BBA, BSI accreditations and are kitemark approved.
We also comply with BFRC regulations which means all our windows are energy rated. Recent legislation (Part L - October 1st 2010) has only served to confuse the industry when it comes to the relative merits of energy ratings and U values. At London Windows Direct, we aim to make it as simple as possible for our customers. Our manufacturing department have recently taken the decision to use a Simplified Energy Label, the benefits being that they can access over 1,500 thermal simulations to ensure we have the very best energy rated window available.
The benefits of energy efficient double glazing
- Smaller energy bills: replacing all single glazed windows with energy efficient glazing could save you around £135 per year on your energy bills.
- A smaller carbon footprint: by using less fuel, you’ll generate less of the carbon dioxide (CO2) that leads to global warming.
- A more comfortable home: energy efficient glazing reduces heat loss through windows and means fewer draughts and cold spots.
- Peace and quiet: as well as keeping the heat in, energy efficient windows insulate your home against unwanted outside noise.
- Reduced condensation: energy efficient glazing reduces condensation build-up on the inside of windows.
The BFRC window energy rating scheme checks all the components to ensure the final window achieves the energy efficient standard claimed. This means that you just need to look for the A-G ratings and remember A is best! Alternatively, just look for the Energy Saving Trust Recommended logo which will only be found on glazing that is B rated or above.
We all want the best from replacement double glazing. That’s why our windows stand apart. From styling to performance to saving energy, the advanced design gives you a comfortable, secure, energy-efficient home.
Reduce wasted energy. Cut bills.
Choosing our windows to replace single glazed or older double glazed units saves money from day one. In fact, it could reduce your heating costs by up to 20% - perhaps worth up to £321 a year.
Choose better looking frames.
Our windows feature low profiles with reflective spacers - so you can’t see them at the window edge. Clear, uncluttered sightlines ensure windows look well proportioned, elegant and attractive.
Stop condensation and noise.
Lower heat loss at window edges makes our glass 3-4°C warmer - cutting condensation by up to 80%. Using high performance gaskets, our double glazing reduces noise pollution, too.
Understanding Window Energy Ratings
The British Fenestration Rating Council’s Domestic Window Energy Rating Scheme provides a way to compare the energy performance of windows on a ‘like for like’ basis. Windows that achieve a C rating or higher can carry the ‘Energy Saving Recommended’ tag.
All our Energy Efficient windows achieve C rated or better energy efficiency. Put simply, they’re the most energy efficient windows your money can buy. Decide what A, B or C rated performance you want; we’ll do the rest.
Understanding U-values
The British Fenestration Rating Council’s Domestic Window Energy Rating Scheme provides a way to compare the energy performance of windows on a ‘like for like’ basis. Windows that achieve a C rating or higher can carry the ‘Energy Saving Recommended’ tag.
- Reduce condensation
- Reduce your carbon footprint
- Combat climate change
- Add value to your property
The next windows you choose could reduce wasted home energy by up to 20%
If the windows in your home consist of single glazed or older double glazed units, replacing them with our energy efficient windows will save you money. It can reduce the energy you need to heat or cool your home by up to 20%
Not all windows are the same
Double glazed units from different sources may look similar at a glance – but don’t be fooled. Not all windows are the same. If windows aren’t efficient they lose valuable, expensive heat. Many units incorporate spacers using metal such as aluminium which acts as a thermal bridge, instantly conducting heat energy through the frame.
Energy efficient windows – at the right price
Our energy efficient window system brings together market leading components to deliver exceptional performance. This means quality performing glass and Duralite, the best performing ‘warm edge’ spacer technology, is used in the sealed unit. Our window profiles include Q-Lon weather seals, multi chamber construction, high security locking and stainless steel hinges.


