Service area · Kent
Like-for-like replacement windows for Gravesend's Victorian terraces, plus composite doors and full-house upgrades across Northfleet and the wider DA11–DA12 area. Period-property specialists.
Survey within 3–5 working days · 10-year workmanship guarantee · Certass-notified installs
Working in Gravesend
Gravesend has one of the densest concentrations of Victorian terraced housing south of the Thames — narrow streets, original sash windows, and a council that takes the conservation areas seriously. Careful timber-effect replacement is normally the right answer for windows facing the street.
Northfleet and the DA11 stock leans more toward 1930s semis and post-war housing, where standard replacement window programmes are more typical. We carry a full product range into Gravesend — from period-friendly timber-effect through to modern aluminium.
The Thames riverside aspect adds a salt-air consideration on north-facing properties. Marine-grade powder-coat is recommended on aluminium near the river. Gravesham Borough handles building control; quote slots typically inside five working days.
Postcodes: DA11 and DA12 · Neighbourhoods: Northfleet, Istead Rise, Higham, Singlewell · Local landmarks: Gravesend Pier, St George's Church, the Thames riverside.

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 DA11 and DA12
Surveyed and fitted across DA11 and DA12
Surveyed and fitted across DA11 and DA12
Surveyed and fitted across DA11 and DA12
Surveyed and fitted across DA11 and DA12
Surveyed and fitted across DA11 and DA12
Surveyed and fitted across DA11 and DA12
Surveyed and fitted across DA11 and DA12
Why us
Sash and casement replacements on Victorian terraces are a Gravesend regular. We respect the original streetscape — slim profiles, period detailing, careful colour matching.
Laminated acoustic units for properties facing busy Gravesend roads. 35dB+ reduction is standard.
We won't propose changes that would face refusal at planning. Survey covers consent requirements upfront.
DA11–DA12 quote slots booked same week. 7am–8pm visit windows seven days.
composite door and premium composite both installed weekly across Northfleet and Istead Rise.
Standard on every Gravesend job. 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 Gravesend's housing stock — typical property age, build style, and local exposure.
Universal across Gravesend's Victorian terraced stock. Slim-profile timber-effect replacements solve the draught and the noise while keeping the period look.
Strict in central Gravesend. We confirm consent requirements at survey and specify sympathetic timber-effect replacements where required.
Properties facing the Thames need marine-grade powder-coat. Standard polyester degrades visibly within 5 years on north-facing aspects.
Decades of paint over rotted timber finally giving up. Either splice and repair or full replacement — we'll quote both honestly.
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 Gravesend (DA11 and DA12). 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 Basildon-area installations.
View Basildon pageSee full coverage details for our Rayleigh-area installations.
View Rayleigh pageFree home survey, written itemised quote, no deposit on the visit. Survey slots run 7am–8pm, seven days, normally diaried within 3–5 working days.