Swindon · Wiltshire
Replacement Glass in Swindon
Need new glass for a window or door in Swindon? We cover replacement sealed units, safety glass and obscure glass for existing uPVC, aluminium and timber frames.
- SN1
- SN2
- SN3
- Guide from £135
About double glazing glass replacement in Swindon
Fitting a replacement unit is usually a short visit per window once the glass has been made. The beads are eased out, the old unit lifted out, the rebate cleaned, and the new unit set on glazing packers to support its weight and keep any opening sash square before the beads go back.
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.
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.
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's included
- Survey and measurement of the existing glass or unit
- Made-to-measure glass or sealed unit to suit the frame
- Written quote fixing the price for the specification
- Removal of old glass and packaging from site

Swindon at a glance
- Postcodes covered
- SN1, SN2, SN3 and the surrounding area, including Calne, Cirencester and Wantage
- Coast
- Swindon is well inland, around 49 km from the nearest coast, so salt exposure is not usually a factor.
- Daylight and sun
- In Swindon 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 Swindon
| 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
Listed buildings in England need listed building consent for most changes to historic windows or glass, and conservation areas can restrict changes visible from the street. Speak to the council's conservation officer before ordering.
Choosing your replacement glass
Toughened safety glass
Heat-treated glass that breaks into small, relatively blunt pieces, used in doors, low-level panes and other critical locations.
Laminated glass
Two sheets of glass bonded to an interlayer that holds the pieces in place if it breaks, adding safety and security.
Standard double glazed unit
Two panes of float glass with a sealed cavity, suitable where safety glass is not required and no special performance is needed.
Replacement Glass in Swindon: 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.
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.
What guarantee comes with replacement glass?
Manufacturer guarantees apply to new sealed units and glass, and the terms are confirmed in writing. Guarantee terms for the fitting are set out in writing with your quote. Keep the paperwork with your property records, as it identifies the unit and its specification if anything needs to be checked or claimed later.
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.
Do you cover Swindon for replacement glass?
Yes. We can quote for replacement glass across Swindon and the surrounding Wiltshire area, including postcode districts SN1, SN2 and SN3, and nearby Calne, Cirencester and Wantage. 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 Swindon
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.