01206 823903

Window Fitting

A and K Home Improvements - Windows, Doors and Conservatories Installation, Suffolk, Essex, Colchester

We are authorised installers for the excellent Tricept Window system which offers superb symmetrical appearance together with its own unique, high security locking systems.


The 70mm Tricept window system is designed by engineers to ensure your windows and doors exceed all expectations from design and manufacture to installation. They're great!

All PVCu windows are weld tested to ensure the corners do not crack. Under this test Tricept results were phenomenal. To pass the test the corners must withstand a pressure of 274n, the Tricept window system held to 644n!

We are happy to advise customers of the current best buys which meet your individual requirements.

As members of the League of Professional Craftsmen, we are obliged to comply to stringent regulations and will never fit cheap or poor quality units which might let you down.

If you'd like a brochure, detailed specifications or technical information please Contact Us.
Tricept Window Security
Tricept Window Security - Tricept 10 Point Lock
Tricept Window Security - Key Locking Handles
Tricept Window Security - IXEF Keeps & Dog-bolts
Tricept Window Security - Bidirectional Centre Lock
Tricept 10 Point Lock
2 x 8mm full length solid shoot-bolts. 2 x stainless steel hinge locks. 4 x 8mm IXEF dog-bolts. Twin-cam lock providing 2 centre locking points.
Key Locking Handles
Handles lock automatically on closing, and are opened by depressing the button. Key operated to deadlock. Available in white, gold, chrome and black.
IXEF Keeps & Dog-bolts
For a neater appearance, Tricept windows include IXEF keeps and dog-bolts. IXEF is the hardened material used in crash helmet technology. It is stronger than brass, anti-corrosive and will not show scratches.
Bidirectional Centre Lock
To enhance security further and increase compression, all Tricept opening windows include a bidirectional twincam centre lock.