This page stays intentionally lean on imagery where product-accurate photography is still being expanded. The configuration, threshold, hardware, and brochure guidance below reflect the current product brief without borrowing mismatched visuals.
Doors
Aluminium sliding patio doors focused on sightlines, panel formats, thresholds, and performance for larger glazed openings.
Personalise Your Door
Frame Colour: Anthracite Grey
Standard colours
Dual colour available, different interior and exterior finishes on request.
Hardware Finish: Black
Handles, letterplates, and accessories available in matching finishes.
Made to measure. Confirm your colour and hardware choice during your free survey.
Specification Choices
The sliding patio page keeps the emphasis on the specification choices that matter most, using reference visuals to support decisions on sightlines, panel movement, and threshold handling.
Sightline choice is often the main reason a homeowner prefers a slider over a bi-fold, so the page keeps that decision front and centre.
A standard sightline route keeps the system robust and balanced for family use while still delivering the broader glazed feel that makes sliders appealing.
Slimmer centre-line options reduce the visible aluminium through the meeting point and make the closed elevation feel more like uninterrupted glass.
Sliding doors are usually chosen because they preserve glass while avoiding swing space, so the panel format needs to suit the opening and the level of access required.
The classic two-panel format keeps the system straightforward: one fixed pane, one moving sash, and no inward or outward swing space needed.
Broader openings can be split into more leaves to widen the opening while preserving the cleaner frame rhythm that often makes sliders preferable to bi-folds.
On broader spans, multiple tracks can help more leaves stack behind one another without moving into a folding-door format.
Technical Details
Free Survey
If this looks like the right fit, we can survey the opening, confirm the specification, and price it properly for your home with no obligation.
These aluminium sliding doors are built around the details that actually matter on site: interlock width, panel weight, frame depth, weather ratings, and how much uninterrupted glass you can keep in the opening. That gives CII a cleaner specification for contemporary extensions and rear elevations where a bi-fold is not the right operational choice.
Slim 35mm interlock keeps the central meeting stile visually tight
Panel sizes up to 2200mm by 2600mm allow wider glazed openings with fewer frames
Class 4 air permeability, 7A water tightness, and C5 wind resistance on the tested platform
Acoustic performance up to 40dB with the right glazing specification
Thermally broken aluminium frame with 14mm to 36mm glazing compatibility
Colour-matched hardware and single or dual-colour powder coating available
Core Information
The main performance, specification, and installation details that shape how this aluminium range works in practice.
Best For
Wide rear elevations where uninterrupted glass matters most
Openings where a bi-fold would take up too much landing space
Contemporary projects needing larger sliding panels and cleaner sightlines
This thermally broken aluminium sliding system supports glazing options from 14mm to 36mm. Published U-values reach 1.2 W/m2K, keeping the range aligned with modern residential expectations while still delivering the slimmer frame lines homeowners usually want from an aluminium slider.
Multi-point locking combines with anti-lift protection to guard against one of the classic weak points associated with older patio doors. The heavier-duty aluminium frame also gives more confidence on wider panels than a lighter entry-level system.
The main design choices are panel format, frame finish, glazing type, and threshold detail. Colour-matched hardware helps the final door feel more resolved than a basic mix-and-match slider, and the broader RAL palette is a major differentiator from simpler retail ranges.
All CII aluminium sliding patio door installations are covered by our 10-year installation guarantee, with final system configuration confirmed at survey before installation.
Sliding Door Details
The slider page works best when it shows how the system moves and locks, rather than trying to pretend there are endless decorative variants to compare.
A slider is usually chosen to keep more uninterrupted glass on show than a folding system would when closed.
The bogie and roller package matters because larger sliding panels only feel premium when the movement stays controlled over time.
Colour-matched handles and cleaner locking detail help the final slider feel more resolved than an entry-level patio system.
Lower-threshold routes are strongest when they are signed off alongside patio level, drainage, and the final panel format.
How It Works
Step 1
We visit, measure, and advise on the right configuration for your property.
Step 2
Our directly employed team installs with clean, tidy workmanship.
Step 3
Final checks, handover, and Assure certification where required.
Next Step
We will measure up, talk through finishes and installation details, and give you a clear quote based on the actual opening rather than a generic estimate.
Imagery Disclosure
Website imagery includes a mix of real installation photography and illustrative visuals created for web presentation. Product appearance may vary by size, finish, glazing, hardware and installation. For detailed product specifications and available options, please see the relevant brochure or contact us. Read the website disclaimer.
“Good price and hassle free. The doors look brilliant, exactly what we wanted. The fitters were friendly and left everything spotless.”
“Had a new composite front door fitted. Looks absolutely stunning and has made such a difference to the kerb appeal. Great communication throughout and competitively priced.”
Questions Answered
Where We Work
Based in Romford, we regularly work across Essex, North and East London, and into Hertfordshire. If you are not sure whether we cover your area, just give us a call.
Find Us
Phone
020 8500 9100Hours
Mon to Fri, 8am to 6pm
Free home surveys available across our coverage area.
Areas We Cover
View all local area pages or not seeing your area? Get in touch and we will let you know if we travel to you.
Get Started Today
Get a free, no-obligation quote from our team. We survey, advise, and install. All handled directly, no subcontractors.
Mon-Fri 8am-6pm · No call centres · Speak directly with Ross
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