DALZIEL SL55i BIFOLD DOORS

Sl55 bi-fold doors, DooRS & Windows for expansive garden views that will take your breath away

Aluminium SL55i doors

Aluminium bifolding doors create a visually stunning addition to your home and can add huge value. Class-leading design features set the SL55 Bifolding Door aside from the competition. Thermal performance and slim profile sections to minimise the visible framework and maximise the glass area, is key to their design. Engineering grade hardware, allows for silky smooth opening and closing operation, without having to pay a premium price. What’s more, all our doors come with a 10- year manufacturers' guarantee for your complete peace of mind



Aluminium is extremely durable and more hard-wearing than other materials. You’ll be able to enjoy your aluminium doors for not only years but decades to come as they're incredibly resistant to the elements. It is also an incredibly strong material, therefore providing a high level of security. Aluminium doors are among the best-insulated on the market, thanks to advanced thermal break technology, which prevents cold transfer. They require very little maintenance to ensure optimal performance and to keep them looking good as new.

Contact Us

The SS55 bifold door

Our brand new SL55 door system
Whether it's a single door, French door or
bifolding door or window, they can all be
fabricated from the same SL55 system. It's so
versatile that it can cater for projects that call for
shaped frames, fixed frames, sidelights, astragal
bars, blinds in glass and can even be used as an
entrance door with optional panel inserts.
All our SL55 products can be finished in several
glazing options to create a style to suit any
property. Single doors, French doors, bifolding
doors or windows, or shaped and fixed frames
glazing options:
Double glazed
Triple glazed
Integral blinds
Heritage look astragal bars
Solid panel inserts
All SL55 sashes are available in 3 profile designs: square, textured square* and
curved.
Choose square for a classic look or textured square for a more contemporary
alternative. And, if you’re looking to complement your property’s existing
windows, then opt for our newest addition, the curved sash.


  • More Info

    AluLock is the ultimate security kit that combines a euro profile

    cylinder as standard, with the option to upgrade to the Ultion 3-

    star barrel, with the Brisant Sweet Handle and an exclusively

    designed Duplex Double Hook Lock.


    Ultion Stays Locked

    The Ultion 3-star barrel provides double the sacrificial

    protection, made from materials 25% denser than iron

    and with twice the number of pins than the average

    lock (including an antipick pin) and 20-point drill

    protection as standard. If att

    acked, the barrel enters'lockdown mode', meaning

    the lock is practically

    impenetrable without heavy and noisy power tools.

    Brisant are so confident of this that they will pay £2000

    direct to the homeowner should a burglary take place

    within 10 years from the point of installation and entry

    was achieved by snapping an Ultion lock.


    The Sweet Handle 

    The safe and stylish Sweet Handle is impressively

    durable, carrying multiple coatings of brass and

    nickel to ensure robust performance against the

    elements. Brisant also offers a 10-year direct to

    homeowner anti-corrosion guarantee for peace of

    mind.

    The sleek curved design is not only pleasing to the

    eye but is an impressive security feature, stopping

    gripping tools designed to snap off handles during

    break ins.

    Available in a range of colours including; black,

    white, grey, chrome and stainless steel. Gold and

    rose gold also available.




    Visit our showroom Mon - Fri (9 am - 5 pm)by appointment, Saturday (12pm – 4pm)by appointment and Sundays(anytime) by appointment. You will be able to see our fully functioning bi-folding doors available in all RAL colours. Conveniently close to Glasgow, Edinburgh, Dundee, Stirling, Kilmarnock and others.

Our SL55 Doors in a nutshell

Door leaf Configuration
SL55 doors are available in up to 7 leaves
each way (14 total). The leaves are able to
open either from the left or right of the
opening, either opening towards the inside
of the property or to the outside – the
choice is
yours.

Adjustable Jamb (Optional)
The SL55 system has been designed to be
quick and easy to manufacture and install.
The system offers an optional adjustable
jamb feature for maximum adjustability of
+/- 4mm either side during installation and
easily adjustable at a later date with an
allen key.

Technical details at a glance:
Market-leading maximum sash size of
1200mm x 3000mm.
Maximum vision – minimal sight lines of
only 120mm or 109mm.
Maximum security – PAS 24 compliant.
Maximum insulation value – down to 1.4 U
W/m2K.
Maximum weather proofing – tested to
BS6375 Part 1 : 2009.
Single or dual colour. 
Factory powder coated to marine quality as per 
Qualicoat regulations.
120kg per door leaf providing for the
openings.
Engineering grade running rollers for a
smooth and silky opening and closing
operation.
Trickle vents can be added.


More than 200 RAL colours available, including woodgrain finishes and dual colour options

  • "I wanted to thank and congratulate Dalziel Home Design ltd for the wonderful service that I recently received.
    I found myself in difficulty with a building project and thanks to the intervention of Jimmy and Chris I was able rescue the build by the delivery of 2 sets of bifold doors at short notice. I am completely satisfied by the high quality of the product and would not hesitate to use Dalziel Home Design in the future."

    from George, Yell.com

    Open up your home to the natural world outside. View our aluminium bi-fold doors at Dalziel Home Design in Motherwell.

    Share by: