Double Glazing Cost in Kennington
Ashford, South East
Indicative 2026 prices · FENSA / CERTASS installers
Costs in Kennington can shift quickly once colour, glass upgrades, access or bay sections are involved, especially for detached homes.
Quick answer
How much does double glazing cost in Kennington?
For Kennington, use £4,000 to £6,800 as a local uPVC full-house starting range. detached homes are common in the area, but the survey should confirm exact window count, dimensions, glass spec, access and repair work.
Typical home
8 windows
Detached most common
uPVC window
£500-£850
Supply and fit
Material uplift
30-80%
Aluminium or timber
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Get My Free QuotesCost by property type in Kennington
A-rated uPVC casement, supplied and fitted
| Property | Typ. windows | Full cost |
|---|---|---|
| Detached | 10 | £5,000 - £8,500 |
| Semi-Detached | 7 | £3,500 - £5,950 |
| Terraced | 6 | £3,000 - £5,100 |
| Flat | 4 | £2,000 - £3,400 |
Detached homes are the most common in this local dataset, so use that row as the closest starting point before checking exact window count, frame choice and style.
Choose the scope before comparing prices
Whole home or phased work. Replacing every window at once gives the most consistent frame colour, handle finish and sightlines. Phasing the work can help with budget, but matching older units later is not always exact.
Like-for-like or style change. Swapping old casements for new casements is usually straightforward. Changing to sash, tilt-and-turn or bay layouts needs more careful measuring and may affect the final specification.
Frames only or surrounding repairs. Older openings sometimes need new trims, sill work or small plaster repairs around the frame. Flag any known damp, cracks or loose render during the survey.
What can move your quote up or down
Specification
Glass and rating
A+ ratings, acoustic glass, obscure glass and safety glass each change the per-pane cost.
Frame choice
Material and colour
Aluminium, timber and foiled uPVC finishes cost more than standard white uPVC frames.
Window style
Openers and bays
Tilt-and-turn, sash, bay and bow windows usually cost more than standard casement units.
Site conditions
Access and repairs
Scaffolding, upper-floor access, trims, disposal and plaster repairs can lift the total.
The most reliable comparison is a like-for-like written quote: same frame material, same glass spec, same opener layout, and the same access, trim, disposal and repair details.
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Your property
What type of property do you have?
Common add-ons that can increase cost
Useful checks when comparing like-for-like quotes
Foiled or coloured frames
Usually higher than white uPVC
Changes the exterior look and must match doors, trims and neighbouring units.
Acoustic glass
Adds per pane
Helps reduce traffic and street noise on busier roads.
Toughened or laminated glass
Adds per pane
Often needed near doors, low-level panes and bathrooms.
Obscure glass
Small upgrade
Common for bathrooms, side windows and overlooked rooms.
Scaffolding or access
Can be significant
May be needed above extensions, conservatories or awkward upper floors.
| Add-on | Why it matters | Cost effect |
|---|---|---|
| Foiled or coloured frames | Changes the exterior look and must match doors, trims and neighbouring units. | Usually higher than white uPVC |
| Acoustic glass | Helps reduce traffic and street noise on busier roads. | Adds per pane |
| Toughened or laminated glass | Often needed near doors, low-level panes and bathrooms. | Adds per pane |
| Obscure glass | Common for bathrooms, side windows and overlooked rooms. | Small upgrade |
| Scaffolding or access | May be needed above extensions, conservatories or awkward upper floors. | Can be significant |
Make double glazing quotes comparable
The details that make two prices comparable
Window specification
Frame material, colour, opener layout, glass rating, trickle vents, handles and locks should all be written down.
Included work
The quote should say whether removal, disposal, sills, trims, sealant, access equipment and plaster repairs are included.
Paperwork and cover
Ask for the FENSA or CERTASS registration, product guarantee, insurance-backed cover and any aftercare terms.
If anything is excluded, ask for it to be shown separately. That makes it easier to see whether one installer is genuinely cheaper or has simply left work out of the price.
Common questions
How much does double glazing cost in Kennington?
Typical mid-range uPVC double glazing costs £500-£850 per window, supplied and fitted. For a typical home in Kennington (around 8 windows), expect a full installation between £4,000 and £6,800.
What affects the final price?
Window size, glazing spec (A, A+ or A++), frame material, opening configuration (casement vs tilt-and-turn vs sash), frame colour and access all influence final price. Bay and bow windows cost more, as do upper-floor installations needing scaffolding.
Are grants available?
The ECO4 scheme provides energy efficiency grants for qualifying low-income households. Windows are not directly funded but may be part of a wider home upgrade package. Your installer can advise on current scheme eligibility.
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Get My Free QuotesMore window guides for Kennington
uPVC quote checks
→Compare frame finishes, glass spec, guarantees and the fitting work included.
Casement window prices
→See the most common UK window style and the quote details that affect the final price.
Sash window considerations
→Useful if the property is older, bay-fronted or needs a more traditional look.
Prices are indicative ranges and depend on dimensions, glazing spec, finish and installer. Property mix data from Census 2021.