Service area · Kent
Premium aluminium bi-fold doors fitted across Kent — Dartford and Gravesend on the doorstep via the QE2 crossing, plus larger projects through Sevenoaks, Tonbridge and the Medway Towns.
Survey within 5–7 working days · 10-year workmanship guarantee · Certass-notified installs
Working in Kent
Kent is a substantial secondary catchment for us — the QE2 crossing puts North Kent within an hour of our Essex base, and we run regular bi-fold and aluminium glazing installs through DA and ME postcodes.
Larger projects through TN and CT — typically full-house glazing or substantial extension bi-folds — are quoted on a project basis with a confirmed install window. Smaller single-door jobs in deeper Kent we'll discuss honestly before booking.
Quote slots typically diaried inside seven working days for Kent. Local building control varies by district; Certass notification handled by us regardless of authority.
Postcodes: DA, ME, TN and CT (north and west Kent priority) · Neighbourhoods: Dartford, Gravesend, Sevenoaks, Tonbridge, Maidstone · Local landmarks: the QE2 Bridge, the M25 / M26 corridor, the Medway Towns.

What we install
Every product on this list is installed weekly across the Kent catchment, with the same fitting team and the same warranty pack.
Surveyed and fitted across DA, ME, TN and CT (north and west Kent priority)
Surveyed and fitted across DA, ME, TN and CT (north and west Kent priority)
Surveyed and fitted across DA, ME, TN and CT (north and west Kent priority)
Surveyed and fitted across DA, ME, TN and CT (north and west Kent priority)
Surveyed and fitted across DA, ME, TN and CT (north and west Kent priority)
Surveyed and fitted across DA, ME, TN and CT (north and west Kent priority)
Surveyed and fitted across DA, ME, TN and CT (north and west Kent priority)
Surveyed and fitted across DA, ME, TN and CT (north and west Kent priority)
Why us
leading aluminium systems aluminium systems installed weekly in Kent. Premium aluminium bi-folds are our single largest product line — not a sideline.
The same Certass-trained crew on every Kent install — no agency labour, no rotating sub-contractors. They are part of our small in-house team — no agency labour.
Quote slots run 7am–8pm seven days. We hold capacity specifically for DA, ME, TN and CT enquiries so you're not waiting weeks.
Frames, glass, fitting and disposal listed separately. The number on the page is the number you pay — no surprise extras after install.
Bi-fold tracks have to be perfectly level and properly DPM'd. We get this right at survey — it's the single biggest cause of long-term callbacks if it's wrong.
Every Kent install — written into your quote, separate to manufacturer warranty. Aftercare adjustments included for the first 12 months.
Who runs your job
Director, Bi Folds & Windows Direct of Essex Ltd
Billy is the director of Bi Folds & Windows Direct of Essex Ltd — a family-run business incorporated on 20 June 2020 (Companies House No. 12684765) that supplies and installs aluminium bi-fold doors, uPVC and aluminium windows, composite front doors and roof lanterns directly to homeowners across Essex, Kent and Hertfordshire.
What we see locally
Patterns that come up specifically because of Kent's housing stock — typical property age, build style, and local exposure.
Most Kent bi-fold callbacks we get asked to fix are tracks that weren't shimmed level at install. Once a track's twisted, the doors won't sit square. We level and DPM every threshold at survey, before doors are ordered.
Aluminium bi-folds can run pane sizes most installers won't quote — but only with the right system and the right glass. Going too small for the opening costs you light and visual width. We size to the opening, not to a default catalogue.
PVC bi-folds work in small openings but the frames are bulky and the pane size is restricted. For most Kent rear extensions, aluminium gives slimmer sightlines and a 25–30-year frame life — usually the right call.
Marine-grade hardware matters for any Kent install with significant exposure. We specify upgraded rollers and locks where the site demands it — standard hardware doesn't last in the wrong location.
Recent work

Customer-supplied install photography is added to this gallery as it becomes available. Names withheld unless explicitly approved.
Our process
01
Booked within your stated response window. We measure, photograph and discuss specification on site — no deposit, no pressure.
02
Frames, glass, fitting and disposal listed separately. The number on the page is the number you pay.
03
Aluminium systems typically 4–6 weeks. PVC and composite doors typically 2–3 weeks. We confirm install date when frames arrive at our yard.
04
Our in-house crew on site. Old frames removed, new units fitted, Certass notification submitted, area swept clean before we leave.
Coverage
Centred on Kent (DA, ME, TN and CT (north and west Kent priority)). We work the full borough plus surrounding villages.
FAQs
Nearby areas
See full coverage details for our Dartford-area installations.
View Dartford pageSee full coverage details for our Gravesend-area installations.
View Gravesend pageSee full coverage details for our Brentwood-area installations.
View Brentwood pageFree home survey, written itemised quote, no deposit on the visit. Survey slots run 7am–8pm, seven days, normally diaried within 5–7 working days.