Egham · Surrey
Replacement Glass in Egham
We can quote for replacement glass across Egham and Surrey, from a single cracked pane to a full set of upgraded low-E sealed units.
- TW20
- Guide from £135
Replacement sealed units across Egham
Sealed units are made to measure, so the glazier records the width, height and overall thickness of the existing unit rather than the frame opening. The new unit has to match that thickness to sit correctly in the rebate and take the original beads, otherwise the seal and security of the pane suffer.
Safety glass should carry a permanent mark, usually etched in one corner, that stays visible once the glass is fitted. The mark identifies the maker or supplier and the standard it meets, such as BS EN 12150 for toughened glass or a BS EN 12600 impact class.
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.
When a double glazed unit sits in a critical location, both panes need to be safety glass, not just the one facing the room. A unit with toughened glass on one side and ordinary float glass on the other does not give safe breakage from both directions.
What you get
- Made-to-measure glass or sealed unit to suit the frame
- Fitting on glazing packers with the beads refitted
- Removal of old glass and packaging from site
- Written quote fixing the price for the specification

Working in Egham
- Postcodes covered
- TW20 and the surrounding area, including Staines, Ashford (Surrey) and Windsor
- Coast
- Egham is well inland, around 64 km from the nearest coast, so salt exposure is not usually a factor.
- Daylight and sun
- In Egham 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
- Older rural properties often have timber frames, small panes or leaded lights that need careful measuring and hand-made units. Panes in exposed spots may need thicker glass, and the survey confirms every detail so the fitting visit runs smoothly.
- 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 Egham
| 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.
What you can choose
Toughened safety glass
Heat-treated glass that breaks into small, relatively blunt pieces, used in doors, low-level panes and other critical locations.
Acoustic laminated glass
Laminated glass with a sound-dampening interlayer, often combined with unequal pane thicknesses to reduce traffic and street noise.
Triple glazed unit
Three panes and two cavities for extra insulation, where the frame's rebate is deep enough to take the thicker unit.
Replacement Glass in Egham: questions
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.
Does replacing window glass need building regulations approval?
Replacing only the glass in an existing frame is normally treated as a repair in England and does not need to be notified. Replacing the whole window is different and must go through building control or a competent person scheme. Even for glass-only work, safety glass should be used in critical locations, and the detail of the rules differs between UK nations.
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.
Should I upgrade to low-E glass when replacing a unit?
If the existing unit is plain float glass, a low-emissivity unit is worth considering because it reduces heat loss through the glass and keeps the inner pane warmer, which can reduce condensation on the room side. It fits the same frame, provided the overall thickness matches. The quote can show standard and low-E options side by side.
Do you cover Egham for replacement glass?
Yes. We can quote for replacement glass across Egham and the surrounding Surrey area, including postcode districts TW20, and nearby Staines, Ashford (Surrey) and Windsor. 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 Egham
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.