Doors
External aluminium bi-fold doors supplied and fitted in Romford and Essex, with priced 2, 3, 4, and 5-panel layouts planned around stack direction, traffic-door use, threshold detail, and glazing.
Specification Choices
Start with the choices that decide whether a bi-fold will work in the actual opening: panel count, stack direction, everyday access, threshold level, and the items that need checking on site.
These are the four currently priced panel-count routes. The final layout still depends on the measured opening, how the leaves stack, whether a traffic door is needed, and the finished patio level.
from price for a 2-panel fitted set
Best for narrower rear openings where the homeowner wants more clear access than a standard hinged pair, without turning the elevation into a full wall of folding glass.
from price for a 3-panel fitted set
A common mid-size route for kitchen extensions and rear rooms where the traffic-door position usually matters as much as the folded opening.
from price for a 4-panel fitted set
A wider family-opening option where one-way or split-stack planning needs to work with the room layout, patio furniture, and daily route through the door.
from price for a 5-panel fitted set
The largest currently priced layout, suited to broad openings where maximum clear access is the priority and there is enough room for the folded stack.
Guide prices are starting points, not final quotes. Dual colour, upgraded hardware, specialist glazing, threshold changes, making good, and unusual site conditions are quoted separately. Aluminium supplier costs can move, so written aluminium quotes are normally held for around 7 days.
Personalise Your Door
Door colour: Anthracite Grey
Standard colours
Inside and outside finishes can be discussed separately where the chosen range allows.
Traffic-door and hardware finish
Bi-fold hardware is planned around daily access: traffic-door handle, panel catches, locking, stack direction, and whether the threshold is standard or lower access.
Made to measure. We show the relevant colour and hardware options during your survey before anything is finalised.
Traffic-door and hardware finish
Bi-fold hardware is planned around daily access: traffic-door handle, panel catches, locking, stack direction, and whether the threshold is standard or lower access.
Made to measure. We show the relevant colour and hardware options during your survey before anything is finalised.
Opening details
Optional Upgrade
Integral blinds suit bi-fold projects where the finished opening needs to stay sleek and uncluttered. The blind sits inside the glazed unit, so there are no loose cords, no exposed slats to clean, and no surface-mounted blinds fighting with the folded panel stack.
A discreet blind sealed inside the glass unit, planned panel by panel during survey.
Magnetic integral blinds
A slim magnetic slider raises, lowers, and tilts the blind inside the sealed glass unit.
Electric integral blinds
Remote operation suits larger panes, harder-to-reach glass, and cleaner contemporary rooms.
Magnetic and electric options can be discussed. Suitability depends on pane size, panel layout, glass specification, and final survey.
Ask about bi-fold blind upgradesAluminium bi-fold doors are usually chosen when a Romford or Essex home needs the rear opening to fold back as widely as possible. They suit kitchen extensions, garden rooms, open-plan rear elevations, and external patio-door openings where panel count, stack direction, traffic-door position, threshold detail, and patio levels all affect daily use. We show approved 2, 3, 4, and 5-panel guide prices as a starting point, then confirm the measured opening, colour, glazing, threshold, hardware, access, and making good before issuing the fixed quote.
Large panel sizes are supported without the bulky look of older folding-door systems
Double and triple-glazed configurations are available depending on thermal and acoustic targets
Class 4 air permeability, E750 water tightness, and C3 wind resistance on the tested platform
Anti-lift hinge design and PAS 24 option for higher-security specifications
Single and dual-colour powder coating across the RAL range
Low-threshold and standard threshold options to balance access and weathering
How It Works
Step 1
We measure the structural opening, check squareness and lintel, compare internal and patio floor levels, and plan stack landing space and the traffic-door hand.
Step 2
Frames are powder-coated to your chosen RAL colour, with glazing, threshold, and hardware locked to the agreed panel layout and panel weights confirmed from the sizes.
Step 3
Our Cii team fits the set, adjusts the fold and traffic door, weather-seals it, and walks you through the operation at handover. Assure certification is provided on completion where applicable.
Free Survey
Tell us the opening and the finish you want, and we will survey it, confirm the aluminium bi-fold doors specification, and give you a fixed written quote with no obligation rather than a generic estimate.
Before installation
The quote should cover the door set and the practical work around it: access, opening preparation, levels, planning checks, and what happens after the doors are fitted.
Straightforward replacements are usually fitted in one to two days once manufactured. Structural work or floor-level changes are planned separately.
We check the aperture, lintel, brickwork, and making-good scope before confirming whether the existing opening is enough.
Most like-for-like replacements do not need planning permission, but listed buildings, flats, and conservation areas should be checked first.
Keep tracks clear, clean the powder-coated frames with mild soapy water, and rely on the Cii 10-year installation guarantee after handover.
Compare door types
The right garden door depends on whether you care most about the clear opening, the closed view, or simple everyday access.
Best when you want external patio doors to open up as much of the rear wall as possible.
“Our bi-fold doors look incredible. The survey was thorough, the installation was clean and quick, and the quality of the product is exceptional. CII have done a brilliant job.”
“Thoroughly recommend this company. From the first call I was given really helpful advice and fitters came out the next day. The fitter was very knowledgeable and helpful, completed the job, and gave good advice on other areas we needed looking at. Will definitely use again and have no hesitation recommending them to friends and family.”
“Good price and hassle free. The doors look brilliant, exactly what we wanted. The fitters were friendly and left everything spotless.”
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
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 with a clear plan from first visit to final handover.
Mon-Fri 8am-6pm · No call centres · Speak directly with Ross
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