🇬🇧
Double Glazing Prices United Kingdom
Prices include VAT. Double glazing installations must comply with Building Regulations Part L (conservation of fuel and power) and may require FENSA or CERTASS certification. Listed buildings may require planning permission.
Double Glazing Prices by Service Type — United Kingdom
Prices include VAT. Double glazing installations must comply with Building Regulations Part L (conservation of fuel and power) and may require FENSA or CERTASS certification. Listed buildings may require planning permission.
| Service | Unit | From | Average | Up to |
|---|---|---|---|---|
| 🪟Standard Window Retrofit Remove existing single-glazed glass and retrofit double-glazed IGU into existing frame — standard window up to 1.2m x 1.2m | /window | £280 | £406 | £560 |
| 🪟Large Window Retrofit Retrofit double-glazed IGU into large window opening — includes removal of existing glass, new IGU, and sealing | /window | £490 | £714 | £980 |
| 🚪Sliding Door Double Glazing Supply and install double-glazed sliding door unit — includes removal, new frame and IGU, tracks, hardware, and weathersealing | /door | £840 | £1,260 | £1,750 |
| 🏠Bay Window Conversion Convert existing bay window to double glazing — includes custom IGUs, frame modifications, and full weathersealing | /window | £1,050 | £1,540 | £2,100 |
| 🏡Whole House (2-bed) Double glaze all windows in a 2-bedroom home — includes removal, new IGUs, and sealing throughout | /house | £4,200 | £6,160 | £8,400 |
| 🏡Whole House (3-bed) Double glaze all windows in a 3-bedroom home — includes removal, new IGUs, sealing, and frame modifications | /house | £7,000 | £10,150 | £14,000 |
| 🏡Whole House (4+ bed) Double glaze all windows in a 4+ bedroom home — includes full survey, removal, new IGUs, frame work, and sealing | /house | £10,500 | £15,400 | £21,000 |
| 🔲Secondary Glazing Install a secondary glazing panel on the interior side of an existing window — ideal for listed buildings where original windows must be retained | /window | £175 | £252 | £350 |
| 🔇Acoustic Glazing Upgrade Upgrade to acoustic-rated double glazing with laminated glass and wider air gap — superior noise reduction for urban properties | /window | £420 | £616 | £840 |
| ☀️Low-E Coating Upgrade Add low-emissivity coating to double-glazed units — reduces heat loss and improves energy rating | /sqm | £35 | £67 | £105 |
| 💨Argon Gas Fill Upgrade Upgrade to argon gas fill between panes — improves thermal insulation by approximately 15% | /window | £21 | £36 | £56 |
| 🔧uPVC Frame Replacement Remove existing frame and replace with new uPVC frame fitted with double-glazed IGU — includes full removal, new frame, IGU, and weathersealing | /window | £560 | £875 | £1,260 |
Double Glazing Prices by City
Click a city for detailed local pricing and tips
London
England · 9.0M
From £210
Manchester
England · 2.8M
From £166
Birmingham
England · 2.6M
From £170
Leeds
England · 800K
From £163
Liverpool
England · 900K
From £161
Bristol
England · 470K
From £175
Sheffield
England · 580K
Pricing available
Newcastle
England · 300K
Pricing available
Nottingham
England · 330K
Pricing available
Southampton
England · 260K
Pricing available
Brighton
England · 230K
Pricing available
Cambridge
England · 145K
Pricing available
Oxford
England · 155K
Pricing available
Reading
England · 175K
Pricing available
Plymouth
England · 265K
Pricing available
Edinburgh
Scotland · 530K
From £179
Glasgow
Scotland · 630K
From £171
Aberdeen
Scotland · 230K
Pricing available
Dundee
Scotland · 150K
Pricing available
Cardiff
Wales · 370K
From £166
Swansea
Wales · 245K
Pricing available
Belfast
Northern Ireland · 345K
From £163
Double glazing prices in United Kingdom range from £21 for an argon gas fill upgrade to £21,000 for a whole house (4+ bedroom) double glazing project. Prices include VAT. Double glazing installations must comply with Building Regulations Part L (conservation of fuel and power) and may require FENSA or CERTASS certification. Listed buildings may require planning permission.
The most common double glazing / replacement windows options in United Kingdom include standard window retrofits, large window retrofits, sliding door double glazing, bay window conversions, whole-house packages, secondary glazing, acoustic glazing upgrades, Low-E coating, argon gas fill, and uPVC frame replacements.
Retrofit existing frames rather than replacing them to save 40–60%. Do the whole house at once for volume discounts of 10–15%. Choose standard double glazing over acoustic unless noise is a specific problem. Check government energy efficiency rebates. Compare at least three quotes. Prices include VAT. Double glazing installations must comply with Building Regulations Part L (conservation of fuel and power) and may require FENSA or CERTASS certification. Listed buildings may require planning permission.
In most cases, like-for-like glass replacement does not require permits. However, frame replacements that alter the external appearance, or work on heritage-listed properties, may require approval. Requirements vary by municipality. Always check with your local authority before commencing work. Prices include VAT. Double glazing installations must comply with Building Regulations Part L (conservation of fuel and power) and may require FENSA or CERTASS certification. Listed buildings may require planning permission.
Related Services
Compare prices for other building and property services