Ruislip Windows and Doors Ltd
uPVC Windows
Ruislip Windows and Doors Ltd. Installers of double glazed windows, doors and conservatories.


Make the right investment for your home with lasting performance, high security windows

We fit the Kömmerling C70 window as our standard uPVC window. Designed by some of Europe's top engineers, our Kömmerling windows combine a sense of style with German engineering. Better thermal efficiency along with improved sound insulation, enhanced security and ease of use are key variables in our technically advanced lead-free uPVC windows and doors. The chamfered design of the C70 gives a modern and clean look through the frame, sash and glazing bead and low line gaskets allow for slimmer sightlines and more visible glass. In addition, the Kömmerling profile is extruded from a unique lead-free compound so our windows are not only better for you, but better for the environment too. Our uPVC windows are availabe in a number of colour options that include both smooth colours and woodgrain foils.

If you're looking for enduring quality and good looks coupled with the latest window technology, then our uPVC window systems offer everything you could ask for, combining outstanding standards in energy efficiency and performance with stunning contemporary profiles.

Kömmerling smooth white, feature run-thru sash horns, astragal Georgian bar
Kömmerling cream finish, feature arched window
Kömmerling white, dummy vents, feature rectangle leads
Kömmerling Chartwell green, dummy vents, feature Georgian bars
Kömmerling smooth white, feature run-thru sash horns, single Georgian bar
Kömmerling white, dummy vents, feature rectangle leads


The C70 Gold chamfered system is a 5-chambered modern system extruded using Kommerling's lead-free uPVC Greenline compound. This system benefits from the cleaner lines of a modern chamfered profile for the design conscious. This highly regarded window system can be perfectly matched with Kömmerling's residential and patio doors, or a conservatory.

  • 70mm frame depth.
  • 5 chambered for better thermal performance,
  • Steel reinforced profiles.
  • Slim sightlines with a lowline grey gasket.
  • Chamfered or ovolo glazing beads.
  • Wide range of colours - 44 woodgrain and coloured finishes.
  • High security multi-point locking and shoot bolts.
  • Internal beading for enhanced security.
  • High impact, colourfast and lead-free uPVC profiles that are better for the environment.

The ovolo profile

In addition to the C70 system, we can also offer our customers the O70 system - this has a "softer" looking sculptured ovolo profile instead of the chamfered. Just like the C70, the O70 provides a unique combination of classic appearance with state-of-the-art performance.

Recycling and sustainability
Optimum function and insulation values, plus the best possible use of materials, are the objectives achieved with this new system generation. Made of a uPVC that has the greenline label - no lead has been used to stabilise the uPVC - instead an environmentally friendly calcium-zinc based stabiliser has been used. At the end of its life cycle the old window components are used to make new ones. As little as possible and as much as necessary is the best motto for sustainable environmental protection - the only way to conserve valuable natural resources.

Just some of the wide range of smooth colours and woodgrain foils now available
Irish oak, black, anthracite grey, chartwell green, ash white


Whilst white is still a popular choice, the ever increasing range of smooth colours and woodgrain foils means that now your choice is greater than ever. Anthracite grey is a prominent colour for a contemporary look and cream and Chartwell green are catching on, particularly for older properties. Woodgrain foils have been around for some time, but now instead of just rosewood, white or golden oak you can opt for modern coloured foils that look like painted wood and lighter more authentic looking woodgrains, such as Irish oak or ash white.


As part of Europe's leading supplier of window and door systems. Kömmerling leads the market in terms of energy ratings, technical innovation and green initiatives. Kömmerling window and door systems have been tested and proven to perform in all kinds of extreme conditions and are the ultimate choice for today's environment.

  • Find out more about our energy efficient, high security Kömmerling uPVC windows in our PDF brochures.
  • If you'd prefer, or you'd like to match up to an earlier install, we can fit the Rehau range of windows and doors too.