Kensington · Greater London
Replacement Glass in Kensington
If a pane in Kensington is cracked, scratched or not up to current safety rules, our glaziers can measure it and supply a made-to-order replacement.
- SW3
- SW5
- SW7
- SW10
- W8
- W10
- Guide from £135
Replacement sealed units in Kensington
Acoustic laminated glass uses a special interlayer that dampens sound passing through the pane. Using two different glass thicknesses in a sealed unit also helps, because each pane resonates at a different frequency. Both can be fitted in an existing frame, though the frame and its seals also affect how much noise gets through.
In England, Approved Document K treats glass in a door or within 300mm of a door edge, up to 1500mm above the floor, and any other glass within 800mm of the floor as critical locations. Replacement glass in these areas should be safety glass, even where the old pane was not.
Swapping glass in an existing frame is normally treated as a repair rather than notifiable building work in England. Replacing the whole frame and opening parts is different and usually needs to be notified, either through building control or a competent person scheme such as FENSA or Certass.
Before replacing glass, the glazier checks the frame for rot, cracks, failed hinges and worn seals. If the frame itself is failing, new glass may not be good value, and the quote will say so, so you can decide between glass only, repairs to the frame or a new window.
What a typical job includes
- Removal of the old pane and cleaning of the rebate
- Survey and measurement of the existing glass or unit
- Written quote fixing the price for the specification
- Made-to-measure glass or sealed unit to suit the frame

Local details for Kensington
- Postcodes covered
- SW3, SW5, SW7, SW10, W8, W10, W11 and the surrounding area, including Shepherds Bush, Hammersmith and Chelsea
- Coast
- Kensington is well inland, around 39 km from the nearest coast, so salt exposure is not usually a factor.
- Daylight and sun
- In Kensington the midwinter sun reaches about 15° above the horizon at noon, with roughly 7.6 hours of daylight, rising to about 62° and 16.4 hours in midsummer. On south and west elevations, a solar control or low-E coating changes how much heat and glare new glass lets in. North-facing rooms usually benefit more from glass that keeps heat in while admitting as much daylight as possible.
- Access and setting
- In towns and cities, replacing glass in flats or above shops often means planning parking, stair access and lifting large units safely. Laminated glass suits ground-floor windows, acoustic glass helps on busy roads, and conservation areas may need matching patterns.
- Rules in England
- Approved Document K requires safety glass in critical locations in England: glazing in doors and in side panels within 300 mm of a door, up to 1500 mm above floor level, and any glazing in walls or partitions up to 800 mm above floor level.
Guide prices in Kensington
| Typical job | Guide price inc VAT |
|---|---|
| Small double glazed unit, 500 × 700 mm | £135 – £175 |
| Standard unit, 600 × 900 mm | £165 – £205 |
| Large unit, 1200 × 1200 mm | £285 – £365 |
| Toughened unit for a door, 750 × 1800 mm | £345 – £435 |
| Triple glazed unit, 600 × 900 mm | £235 – £305 |
Get a guide price for your size
Approved Document L sets the minimum energy performance for replacement windows and doors in existing homes in England: a U-value of 1.4 W/m²K, or Window Energy Rating band B for windows; doors can instead meet a Door Set Energy Rating (band B, or band C for doors more than 60% glazed); rooflights need 2.2 W/m²K.
Options to choose between
Toughened safety glass
Heat-treated glass that breaks into small, relatively blunt pieces, used in doors, low-level panes and other critical locations.
Obscure patterned glass
Textured glass for bathrooms, hallways and doors, available in several patterns that give different levels of privacy.
Georgian bar or leaded unit
Decorative bars or lead designs inside or on the glass, matched to existing windows for a consistent look across the property.
Replacement Glass in Kensington: questions
Do I need safety glass in my replacement window?
You do if the glass is in a critical location. In England, that means glass in doors and within 300mm of a door edge, up to 1500mm above floor level, and other glass within 800mm of the floor. Elsewhere in the UK the rules are similar, but the detail differs between nations. The glazier checks each location at the survey.
How long does it take to get replacement glass fitted?
There are usually two stages: a survey to measure, then a fitting visit once the glass has been made. Toughened glass and sealed units are manufactured to order, so they cannot be cut from stock while the glazier waits. Fitting itself usually takes a short time per window. Your quote will set out when the glass is expected, and we will tell you honestly when a glazier can attend.
Can you replace just the glass without changing the window frame?
Yes. In most uPVC, aluminium and timber windows the glass or sealed unit can be removed and replaced on its own, keeping the existing frame, hinges and locks. The glazier checks the frame is in good condition first. If the frame is rotten, warped or damaged, the quote will say so, so you can decide whether glass only is still worth doing.
What is the difference between toughened and laminated replacement glass?
Toughened glass is heat treated so that, if it breaks, it crumbles into small, relatively blunt pieces and leaves the opening empty. Laminated glass has a plastic interlayer between two sheets that holds the pieces together, so the pane stays in the frame. Both count as safety glass when classified to the relevant standard, and laminated also helps with security and noise.
Do you cover Kensington for replacement glass?
Yes. We can quote for replacement glass across Kensington and the surrounding Greater London area, including postcode districts SW3, SW5, SW7, SW10 and W8, and nearby Shepherds Bush, Hammersmith and Chelsea. Start with your postcode on the quote form and a glazier will arrange a free survey before giving you a written quote.
Get a written quote in Kensington
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.