Windows, doors & conservatoriessupplied and installedacross London
From Victorian terraces in the south-east boroughs to post-war semis and new-build apartments, our surveyors measure, specify and install with the same fixed price in writing from day one.
FENSA registered · Checkatrade 10/10 (279 reviews) · 10-year workmanship guarantee
Serving London, SE, BR, DA, CR…
Swift Home Improvements has installed windows, doors and roof products across London since 1998. We cover south, south-east and east London daily from our Greenhithe workshop, with regular jobs in the SE, BR, DA and E postcodes. Our surveyors know the difference between a Bromley 1930s semi, a Southwark ex-local block and a Docklands new-build, and specify accordingly.
Response times to London addresses are typically within 45–70 minutes of Greenhithe, which means we can typically survey London properties quickly and manage projects responsively.
Common jobs in London include full-house uPVC replacement in the outer boroughs, bi-fold and aluminium door rear extensions in Zone 3–4 refurbishments, composite front-door upgrades on terraces where street security matters, and roof lanterns over side-return kitchens. Every install is FENSA-certified and covered by our 10-year workmanship guarantee.
What we install in London
Every service below is delivered directly by Swift Home Improvements employees, not subcontracted. Click through for the full specification, guarantees and process for each.
Windows
Made-to-measure uPVC, aluminium and timber-effect windows fitted to London homes with A-rated glazing and FENSA certification.
Bi-fold Doors
Aluminium bi-folds surveyed, structurally checked and installed to open up rear elevations across London.
Composite Doors
Secured-by-Design composite front doors sized and colour-matched for London street scenes.
Aluminium Windows & Doors
Slimline aluminium systems for London extensions, loft conversions and contemporary refurbishments.
Warm Roofs
Tiled warm-roof conversions turning cold, leaky conservatories in London into usable year-round rooms.
Skylights
Fixed and opening rooflights installed on London flat roofs, kitchen extensions and loft rooms.
uPVC Doors
Cost-effective uPVC back, side, French and patio doors fitted across London.
Conservatories
Bespoke conservatories and orangeries built on properly engineered bases across London.
Roof Lanterns
Aluminium roof lanterns adding daylight and ceiling height to London kitchen-diners.
Why homeowners in London choose Swift
Swift Home Improvements Ltd (company 03679915) is a family-run installer founded in 1998, based at 215 London Rd, Stone, Greenhithe DA9 9DQ. We carry £5m Public Liability and £10m Employers' Liability cover, are FENSA registered, and hold a Checkatrade 10/10 average across 279 verified reviews. Every install is backed by our 10-year workmanship guarantee.
Recent installs near London
A selection of real Swift installations from across Kent, London, Surrey and the South East. Tap through to browse the full gallery.
Common issues in London properties
London housing stock ranges from mid-19th-century Victorian and Edwardian terraces with original bay windows, through 1930s bay-fronted semis in the outer boroughs, to 1960–80s local-authority estates and modern apartment blocks. Each has its own quirks: soft brickwork and lintels that need care during removal, non-standard opening sizes, awkward access, conservation-area style requirements, and shared-freehold approvals on flats. We survey every opening individually rather than assuming standard sizes.
Ageing single glazing and worn seals
A large share of London's period stock still has original or first-generation replacement units. Failing seals, misted panes and warped timber sashes drive heat loss, noise ingress and condensation.
Traffic and aircraft noise
Homes near arterial roads, rail lines and flight paths need acoustic-rated glass units. We specify laminated or asymmetric double glazing rather than defaulting to standard 4-20-4 spec.
Security exposure on terraces and ground-floor flats
Street-facing front doors and accessible windows benefit from PAS 24 / Secured by Design hardware, multi-point locking and laminated inner panes, standard on our composite door range.
Damp lintels and soft brickwork
Older London properties often reveal cracked lintels, perished cement or salt-damaged brickwork when the old frame is removed. Our fitters make-good rather than covering it up.
From first call to sign-off
- STEP 1
Enquiry
Call, WhatsApp or form, we confirm coverage and book a sales representative visit at a time that suits you.
- STEP 2
Sales representative visit
One of our sales reps comes out first to walk the property, talk through options and finishes and outline indicative pricing. No pressure.
- STEP 3
Surveyor & fixed written quote
Our surveyor then attends separately to measure every opening and check structural detail. You get a fixed written price to compare like-for-like.
- STEP 4
Manufacture & scheduling
Frames are made-to-measure to your survey. We book a firm install date and confirm access details.
- STEP 5
In-house fitting team install & sign-off
Our own employed fitting team carries out the install, tidy site, snagging walkthrough and FENSA certificate issued to your address.
London, common questions
Do you serve all London postcodes?
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We regularly install across south, south-east and east London, including SE, BR, DA, CR and neighbouring SW and E postcodes. If you're unsure whether we cover your street, call 01322 221010 and we'll confirm on the spot.
How fast can you reach my London address?
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From our Greenhithe base most London addresses are within 45–70 minutes. Surveys are usually offered promptly, and quotes returned promptly of the survey.
How much do windows cost in London?
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We don't publish per-unit prices because every London home differs, bay geometry, access, listed-building constraints and glazing spec all move the number. What we do guarantee is a fixed written price after survey, with no day-of-fit surprises.
Do you carry out emergency repairs in London?
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We only carry out repairs on windows and doors we originally installed. If Swift fitted your windows or doors we prioritise urgent call-outs inside your 10-year guarantee. We do not attend emergency repairs on installs by other companies.
Are you FENSA registered for London installs?
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Yes. Every replacement window and external door we fit in London is FENSA certified, the certificate is issued to your address and satisfies Building Regulations without needing separate council sign-off.
Can you match conservation-area or listed-building requirements?
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We regularly specify heritage-profile uPVC, timber-effect aluminium and slim-sightline units for conservation areas across London. If planning consent is required we'll flag it during the survey rather than proceeding blindly.
Do you handle flats and shared freeholds?
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Yes, we're used to management company approvals, RAMS documentation and scaffolding coordination for London apartments. Allow extra lead time for freeholder sign-off.
What guarantees come with a London install?
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10-year workmanship guarantee from Swift, manufacturer product guarantees on frames and glass, FENSA insurance-backed guarantee, and £5m Public / £10m Employers' Liability cover on site.
Other areas we cover
Get a fixed price for your London project in writing
Director-level survey, no pressure, and a written fixed price you can compare like-for-like. We get back to you promptly.
FENSA registered·10-year workmanship guarantee· London