Service area · Essex
aluminium roof lantern roof lanterns, aluminium bi-folds and full-house glazing across Brentwood, Shenfield, Hutton and Ingatestone. Premium installs for the larger detached housing stock that defines the CM13–CM15 area.
Survey within 2–4 working days · 10-year workmanship guarantee · Certass-notified installs
Working in Brentwood
Brentwood housing skews larger and more detached than most of Essex — 1930s mock-Tudor through Hutton and Shenfield, big interwar detached around Warley, and a rolling pipeline of side-return and rear extensions on Edwardian villas closer to the High Street. Roof lanterns and bi-folds together account for roughly 60% of our Brentwood workload.
Crossrail at Shenfield has reshaped the local market and pushed rear-extension activity hard. We're frequently working on single-storey kitchen extensions where a 3m × 2m aluminium roof lantern is paired with a 4-pane bi-fold along the back wall.
Our fitting van is in CM13–CM15 most weeks. Brentwood Borough Council handles building control for the area, and Certass-notified replacements don't need separate consent. Quote slots are normally booked inside two to four working days for Brentwood postcodes.
Postcodes: CM13, CM14 and CM15 · Neighbourhoods: Shenfield, Hutton, Ingatestone, Warley, Pilgrims Hatch · Local landmarks: Shenfield Crossrail station, Thorndon Country Park, Brentwood High Street.

What we install
Every product on this list is installed weekly across the Essex catchment, with the same fitting team and the same warranty pack.
Surveyed and fitted across CM13, CM14 and CM15
Surveyed and fitted across CM13, CM14 and CM15
Surveyed and fitted across CM13, CM14 and CM15
Surveyed and fitted across CM13, CM14 and CM15
Surveyed and fitted across CM13, CM14 and CM15
Surveyed and fitted across CM13, CM14 and CM15
Surveyed and fitted across CM13, CM14 and CM15
Surveyed and fitted across CM13, CM14 and CM15
Why us
All Brentwood lantern installs are by fitters experienced in roof-lantern assembly standards — frame square, glass set, no twist.
Brentwood is on our regular run. Most CM13–CM15 enquiries are seen within four days, evenings and weekends included.
Bi-folds up to 6 panels, lanterns up to 4m × 2.5m. We've handled the full openings rear-extensions in Brentwood typically demand.
leading aluminium systems systems sit naturally in the Brentwood housing stock. We won't push PVC where aluminium is the right answer.
Surveys, structural co-ordination, Certass notification and final clean — all in-house, no sub-contracted finger-pointing.
The same in-house crew on every Brentwood job. They are part of our small in-house team — no agency labour.
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 Brentwood's housing stock — typical property age, build style, and local exposure.
We see a lot of 2m × 1m lanterns in Brentwood extensions where a 3m × 2m would have been the right call. Bigger isn't always better — but on a 5m-deep room you can see the difference.
Track corrosion shows up 5–7 years in if the install hasn't accounted for moisture rising through new screed. We DPM every threshold as standard.
Properties around the conservation area can't always take aluminium replacement frames. We'll discuss the right route at survey, including timber-effect alternatives that keep the period appearance.
Where a previous installer didn't dress the lead flashing properly. We re-detail flashings on every replacement rooflight, regardless of original fitter.
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 Brentwood (CM13, CM14 and CM15). We work the full borough plus surrounding villages.
FAQs
Nearby areas
See full coverage details for our Billericay-area installations.
View Billericay pageSee full coverage details for our Chelmsford-area installations.
View Chelmsford pageSee full coverage details for our Basildon-area installations.
View Basildon pageFree home survey, written itemised quote, no deposit on the visit. Survey slots run 7am–8pm, seven days, normally diaried within 2–4 working days.