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Many of  the entrance doors have been designed specifically around the very latest range of folding sliding doors to give a co-ordinated appearance in finish and design, ideal when your ideal home improvements and has the same elevation as your front door.

When it comes to security, you can also rely on the high quality of DD Installations entrance doors - the H-5-Automatic special security pivoting bolt lock included as standard provides your home with quality-tested protection. When locking, 3 steel bolts with 2 additional hooks pivot into the stainless steel lock plates. In addition, a stainless steel bolt on the hinge side engages with the fascia frame. This way, you can feel perfectly secure with the effective 6-point locking system.
DD Installations is pleased to be a select dealer for our stainless steel front entrance door range - a range of the very highest quality aluminium insulated front entrance doors with unique features and very high levels of security.Our range is also a specific range of high quality entrance doors for the UK.
Graduated higher security - DD Installations offers you various security packages offering graduated additional security and comfort.

Secure opening with an integrated steel bar - The S-3 S security package features a steel bar integrated in the lock. This allows you to initially open the door only a crack, preventing strangers from pushing it open all the way. This security package is also available with an automatic lock (S-5 S Automatik) which automatically locks your entrance door when it is pulled shut. The automatic lock is also available without a steel bar (S-5 Automatik).

Automatic locking - comfortable opening - The S-5 Comfort security packages feature an automatic lock that locks the door automatically when pulled shut. When opening via one of the control element options (internal push button, hand transmitter, etc.) an integrated motor releases the lock and the door can be easily opened Of course you can continue to unlock your entrance door with its key.

Push button opening - With S-5 Comfort, your entrance door can be opened at the push of a button from the inside, e.g. via the house intercom. This is especially suited for multi-party residences.

Finger print scanner - S-5 Comfort Scan opens your door with a finger scanner. You and your family no longer need keys. You can also open your Hörmann garage door with this technology.
Aluminium SS systems

Our aluminium doors come in a wide range of styles. Thanks to standard multiple-point locking, these inexpensive doors give you a feeling of security, save energy through excellent thermal insulation and gives a stylish appearance to your home.

Without visible leaf frame - Our entrance doors have an exclusive appearance. A beautifully-shaped smooth door leaf made of steel or aluminium, without a visible leaf frame, simply looks good.

High thermal insulation - Nowadays, people try to save energy everywhere in their homes and DD doors also play their part. With a 46-mm thick door leaf completely filled with CFC-free rigid foam, these doors provide thermal insulation with a k-value of up to 1.1 W/m2 K. Reducing your energy bills!

The best sealing possible - Double seals on all four sides with additional corner seals near the bottom provide extra protection against bad weather. Heat loss is kept to a minimum.

8-point security - Because you and your family want to feel safe at home, all doors are equipped with multiple-point locking as standard for extra security to match our UK 70 Range

Certified brand quality - All doors are manufactured in line with ISO 9001 and regularly subjected to the strictest quality tests. A CE mark indicates that the doors comply with EU directives in accordance with EN 14351-1. All of the most important door requirements laid out therein are adhered to. The benefits and advantages for you:

- Water-tight under heavy rain - Stable under heavy winds - Airtight - Acoustic insulation - Thermal insulation
Company Registration: 5846179