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Secure by design.

Investing in new windows and doors is not just about enhancing the look of your property, but also about improving your security.

This is why we offer the Kommerling 070, C70 and Flush Sash uPVC window frame systems which combines high levels of energy efficiency with outstanding security.

Whether it’s doors, windows, bi-fold doors, French windows or a conservatory, the Kommerling frame system brings high levels of security thanks to its multi-point locking systems, shoot bolts and internal beading.

Our commitment to the Kommerling system is driven by our ambition to offer Lockwood Windows customers an outstanding product made to exacting standards. Our investment in new products, tooling and design software is also part of our long term endorsement of the Kommerling range.

We never forget that new windows and doors are a major investment in your property, which is why it’s worth investing in the best.


Supporting Yorkshire housebuilders

Ever since we started back in 1997, we’ve been supporting trade customers and housebuilders with the same quality products and level of service enjoyed by our residential customers.

By choosing Lockwood, we can offer you either a supply only or supply and installation service, and work to short lead times, where needed. We can also deliver your windows and doors on-site.

As with our residential customers, our trade supply windows and doors have the same high standards of frame manufacture, glazing technology and locking mechanisms - whether it’s a single property build or a whole housing development.


Saving energy. Saving money.

With energy costs increasingly on all our minds it makes sense to invest in windows that play a key part in the energy efficiency of your property.

All new and replacement glazed doors or windows have to use Pilkington KS Glass or similar low ‘e’ (for emissivity) glass. Low emissivity coated glass reflects heat back into the room, whilst also letting in free heat from the sun - this is known as passive solar gain. Pilkington KS Glass helps windows and doors achieve high energy ratings in order to comply with Building Regulations Part 1.

The reason for this is that the British Fenestration Rating Council (BFRC), in association with the British glazing industry, created an energy efficiency rating system, ranked from A-G to help consumers know the exact energy efficiency performance of their windows, with A being the highest performing and G being the lowest.

The BFRC provides third party certification on all uPVC and aluminium windows and doors manufactured in the UK. This enables consumers to have complete clarity on the energy performance of the windows and doors they are buying.

In order to achieve even a ‘C’ energy rating, many window companies use a uPVC system which achieves the basic energy rating performance but falls down on the level of security.

Pilkington Energikare

This product is an energy efficient double glazing unit from Pilkington which, when installed in good quality window frames, helps achieve the requirements of the Energy Saving Trust. This has enabled Pilkington Energikare to receive Energy Saving Recommended status as an energy saving product.