Bay and bow windows · Greater London
Triple glazed bay and bow windows in Thamesmead
If you live in Thamesmead (SE28) and want triple glazed bay and bow windows, start with a free survey: every opening measured, then a written quote that fixes the price.

Warmer front rooms on 1930s and Victorian homes. A bay window projects out from the wall in angled sections; a bow window curves in more, shallower sections.
Winter light and glass choice in Thamesmead
In Thamesmead, midday sun in late December sits around 15° high, with roughly 7 h 50 min of daylight. For windows facing north or shaded by neighbours, cutting heat loss matters more than solar gain; on open south-facing glass, ask about a higher solar-gain unit.
Guide prices in Thamesmead
| Guide | Supply and fit, inc VAT |
|---|---|
| 3-light bay three windows, about 2.7 m across | £2,995 – £3,795 |
| 5-light bay or bow five windows, about 3.5 m across | £3,795 – £4,695 |
| Two-storey bay ground and first-floor bays | £5,995 – £7,495 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for bay and bow windows in England
In England, replacement windows must meet 1.4 W/m²K, or a Window Energy Rating of band B or better. Replacement windows are a controlled fitting. A competent person scheme installer (such as FENSA or Certass) self-certifies the work and notifies the council within 30 days; otherwise a building control body approves it.
Before ordering: Replacing windows on a house is normally permitted development if the new ones look similar. New upper-floor windows in a side wall must be obscure glazed and fixed, or open only above 1.7 m. Flats and maisonettes have no householder permitted development rights, so a change that alters their appearance needs planning permission. An Article 4 direction in a conservation area may mean permission is needed, and listed buildings need listed building consent.
How it works
After the free survey you get a written quote naming the frame system, the glass build-up and the whole-window U-value for every item. Windows are made to order, then fitted, sealed and made good, one opening at a time.
- Free survey and a written quote fixed for the specification
- Glass build-up and whole-window U-value on every quote
- Written handover pack at the end of the job
- Guarantees on frames, units and fitting in writing
Questions from Thamesmead
Will the bay be warmer?
Yes. Replacing old double or single glazing in a bay with triple glazing cuts heat loss through the glass and makes the glass surface warmer, so the room feels less draughty.
How much does a triple glazed bay window cost?
Our guide starts at £2,995 for a three-light uPVC bay, fitted and inc VAT; UK quotes run from about £2,000 to £4,500.
How long does it take to get triple glazed bay and bow windows fitted in Thamesmead?
After the survey, typical manufacture time is 5 to 8 weeks, and most homes are fitted in 1 to 4 days.
Do you fit triple glazed bay and bow windows in Thamesmead?
Yes. We arrange surveys and fitting in Thamesmead and across Greater London. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Nearby
We also cover nearby Barking (4 km), Welling (5 km), Dagenham (6 km) and Ilford (7 km).
Other products in Thamesmead
- uPVC windows
- Aluminium windows
- Timber windows
- Alu-clad timber windows
- Casement windows
- Flush casement windows
- Tilt and turn windows
- Sash windows
- Fixed and picture windows
- Composite front doors
- French doors
- Sliding patio doors
- Bifold doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Bay and bow windows in Thamesmead: book your free survey
Written quote fixed for the specification, after a free survey. Building Regulations sign-off by a competent person scheme installer or building control, as the law requires in England.
