Custom High Security Windows
Safety is paramount. Given the inherent risks today, securing your residence and property is essential for the protection of yourself and your family. As windows are the most vulnerable structural point of a home, they facilitate easy unauthorized entry.
Consequently, just like doors, high security windows require reinforcement through advanced technology and professional engineering. Our security doors and windows deliver maximum protection against intrusion, ensuring your home remains a safe environment.
Sash
Made to measure
Casement
Bespoke proportions
Fixed
Coordinated glazing

Window types
Sash, casement and fixed windows
01 / WINDOW DESIGN
Sash
Made-to-measure sash windows.
02 / WINDOW DESIGN
Casement
Casement window designs.
03 / WINDOW DESIGN
Fixed
Fixed glazed openings.
- Coordinated window and security-door specifications.
Materials and finish
Reinforced construction. Architectural character.
Our security windows are made from highest quality galvanized stainless steel RUUKKI & combined with engineered wood that can be factory sprayed in any RAL colour, be any shape, design and measurements. We also specialise in making exact replica sash windows for conservations areas and grade buildings in central London.
Our windows can be upgraded up to required bullet proof level. Our bulletproof windows are tested to withstand the impact of 9mm handgun shells fired from close range. We fit our doors with this bulletproof glass too.
The bulletproof windows may be specified for individual areas of your home or we can come up with a total external and internal security solution featuring our security windows and doors at key points throughout the house. We also use smart bullet proof glass which can become completely opaque after 1 gun shot and not leave a second chance for sniper.
| Specification | Model details |
|---|---|
| Construction | RUUKKI steel with engineered timber |
| Window styles | Sash, casement and fixed |
| Finish | Factory sprayed in the chosen RAL colour |
| Design options | Bespoke dimensions, shapes and replica sash detailing |
Specialist glazing
Bullet Proof Windows
Top Security Doors offers a premier range of security windows. Sash, casement, and fixed windows—solutions designed to be without equal in the current market. Our windows can also be upgraded to bullet proof windows. Given that windows are often a primary vulnerability, careful attention is required when the intention is to create a home that is truly a castle.
The installation of tailor-made doors and windows can transform a residence into a stronghold. This ensures absolute command over who enters a property, allowing for a feeling of complete safety and security at all times.
Our security windows are thoroughly tested for their ability to withstand gunshots, extreme force and extremes of temperature. The bullet proof windows can be upgraded to fire resistance to withstand as much as 1,000 degrees Celsius and rebuff fire for as long as 45 minutes.
A coordinated specification
Start with the openings you need to protect.
The range can be used for a selected part of the house or for a broader security scheme. Discuss the required window style, the appearance to retain and whether ballistic or fire-resistant glazing options are part of the brief.
Specialist resistance and fire performance depend on the selected assembly. The applicable test information should be confirmed for the proposed window and glazing specification.

THE DETAILS, EXPLAINED
Frequently asked questions
Which security window styles are available?
The range includes sash, casement and fixed windows, with made-to-measure shapes, sizes and finishes.
Can you make replica sash windows?
Yes. Replica sash windows are offered for conservation areas and listed buildings, using steel construction with engineered timber detailing and the chosen factory-sprayed RAL finish.
Can security windows be upgraded with ballistic glazing?
Yes. Specialist ballistic glazing options can be considered. The proposed window assembly, glass and required resistance need to be specified together with the relevant test information.
A CONSIDERED NEXT STEP
Let’s plan your project
Tell us about your property, preferred design and security requirements. We will help you select the right complete specification.