Allder Group - Glass and Locks

Allder Group - Glass & Locks

uPVC Windows & Doors

Quality PVCu windows and doors we offer customers the choice of market leading Kommerling Connoisseur ovolo profiles or Swish 24/7 energy efficient 5 chamber profiles.

Doors and windows used in the construction of our conservatories are available using Kommerling 'Lead free' PVCu profiles which feature an industry leading 20 year colourfast guarantee. Established over a century ago, Kommerling is the first choice for architects across Europe and has been the brand leader in the design and introduction of PVCu windows for over 30 years.

The British Government’s legally binding commitment to reduce green house gases is fully supported by Kommerling. The company has undertaken an extensive testing programme to ensure all its products not only meet, but exceed the stringent requirements of Part L of the Building Regulations. In addition, Kommerling profiles are lead-free and fully degradable making them environmentally friendly.

For more information on Kommerling PVCu profiles you can visit their web site by clicking the logo below

Our Kommerling Timberlook PVCu profile has been engineered to replicate traditional timber windows using a fully sculptured ovolo design but with the added feature of low-line glazing gaskets to eliminate those ugly black lines seen on other PVCu window systems.

Timberlook windows and doors have internal beading for extra security are are manufactured to British Standard Kitemarks BS 7412 and BS 7950/7412.

In addition to white finish, Timberlook windows and doors used in your new conservatory are available in a variety of foiled finishes:

  • Rosewood
  • Rosewood/White
  • Light Oak
  • Light Oak/White
  • Ebony Black/White

Ebony black woodgrain foil is the latest addition offering a black foiled finish outside and white inside. Please note that if specified on a conservatory the conservatory roof would be supplied in a matching black paint finish.

Upgrade to our NEW Swich 'A' Rated Windows

In addition to our substantial range of Kommerling products we now also offer a complete range of Swish windows and doors including our NEW energy efficient A rated window which provides 1.3 W/m2.K as certified by the British Fenestration Rating Council.

Our new A rated Swish 24/7 PVCu window combines a 5 chamber profile with RCM(recycled composite material)reinforcing and argon filled Planitherm soft coat low E glass to produce a window that easily achieves the top WER rating in energy efficiency.

Colour Finishes

Sample Swish colours

In addition to a standard white finish our Swish 'A' rated window also comes in an increased range of foiled woodgrain finishes:

  • Rosewood/Rosewood
  • Rosewood/White
  • Light Oak/Light Oak
  • Light Oak/White
  • Ebony Black/White
  • Polar White/White
  • Cream/White
  • Antique Pine/White
  • Chartwell Light Green/White
  • Firgreen Dark/White

Note: second colour is the internal finish and in all cases the white internal finish is not foiled.

RCM Reinforcing

Recycled composite material(RCM)is an innovative concept in profile reinforcing which replaces traditional steel reinforcing with a thermally efficient material that can also be welded at the corners to provide a much stronger corner joint.

High Security as Standard

All Affordable windows and doors are fitted with high security locking systems to protect your property against intruder attack.


All windows are fitted with the latest generation PINCER high security locking systems as standard for your security and peace of mind.

Operated by a simple turn of the handle the unique gearbox activates up to four pairs of high strength 'mushroom pincers' simultaneously driving each pincer into a double-sided security striker from opposite directions.

This double action locking means that any attempt to force one pincer out of its closed position merely forces the opposing pincers deeper into their strikers, strengthening rather the weakening the system’s security.

When tested to BS 7950 destruction failure occurred at a force of 7.8kn. The force applied to pass BS7950 test is between 1kn and 3kn.

Window Options

Our new Heritage Horns can be added to top opening sashes to create a traditional looking window and are often specified when replacing sliding sash windows with modern PVCu windows to retain a traditional appearance.

Our Astragal Bar mouldings provide raised mouldings for a traditional Georgian look and are an alternative to inserts that are encapsulated within the sealed unit.