FENSA Registered·Checkatrade 10/10 (279 reviews)·£5m Public Liability sales@swiftltd.co.uk·01322 221010 Swift Home ImprovementsAboutServicesAll services→ WindowsBi-fold DoorsComposite DoorsAluminiumWarm RoofsSkylightsuPVC DoorsConservatoriesRoof LanternsOrangeriesTimber WindowsSecondary GlazingFire Doors AreasAll areas→ LondonKentSurreyEssexGreenhitheDartfordBromleyBeckenhamChislehurstSevenoaks Our WorkReviewsContact01322 221010Request Free Quote - Home - Areas - London Service area · Greater London # 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. Request free quote 01322 221010 FENSA registered · Checkatrade 10/10 (279 reviews) · 10-year workmanship guarantee Since 1998 Family-run installer FENSA Registered installer 10/10 Checkatrade · 279 reviews 10 years Workmanship guarantee £10m Employers' Liability Local coverage ## 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 guarantee. Response time typically within 45–70 minutes of our Greenhithe base Postcodes SE · BR · DA · CR · SW · E · N Property types Period, inter-war, post-war & modern stock across London Services ## 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 us ## Why homeowners in London choose Swift Since 1998 installing in London 10/10 Checkatrade · 279 reviews £5m / £10m Public & Employers' Liability 10 years workmanship guarantee 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. Our work ## 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. New white uPVC bay and casement windows with Georgian glazing bars fitted to a red-brick Kent home Close-up of a white uPVC sliding sash window with Georgian glazing bars and brass fitch fasteners in a red-brick wall Two-storey white uPVC bay windows with leaded glazing fitted to a mock-Tudor semi-detached home Close-up of a white uPVC bay window with slim top-opening vents in a painted render period bay White uPVC bay window and matching dormer window with Georgian glazing bars on a yellow-brick detached house Anthracite grey uPVC casement windows installed on a mock-Tudor brick and render family home Anthracite grey composite front door with side glazed panel under a newly clad gable porch roofline on a brick home White uPVC conservatory exterior with new tiled roof and lead flashing joining a red-brick house Bright conservatory interior with white uPVC casement windows, top-opening vents and a rooflight overlooking the garden White uPVC French patio doors and casement windows on a white rendered rear extension with a sandstone patio dining area, a Swift Home Improvements project White uPVC conservatory windows and French doors alongside new casement windows on a red-brick detached home with a tiled conservatory roof and lead flashing Modern white rendered home in Kent with black aluminium bi-fold doors and full-height Crittall-style windows at dusk See all recent work Local factors ## 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. Our process ## 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. FAQ ## London, common questions ### Do you serve all London postcodes? +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? +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? +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? +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? +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? +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? +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? +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. Nearby ## Other areas we cover Bromley Beckenham Chislehurst Dartford Kent Surrey View all areas Explore our full services list, browse recent installs, read verified reviews, or return to the homepage. Next step ## 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. Request free quote 01322 221010 FENSA registered·10-year workmanship guarantee· London Family-run installers of bespoke windows, doors and conservatories. Serving London, Kent, Surrey & the South East since 1998. - Checkatrade 10/10 CompanyAbout - Our Work - Showroom - Trade Enquiries - Reviews - Contact Services - Windows - Composite Doors - Bi-fold Doors - Aluminium - Conservatories - Warm Roofs - Skylights & Lanterns - Orangeries - Timber Windows - Secondary Glazing - Fire Doors Get In Touch - 215 London Rd, Stone,Greenhithe DA9 9DQ - 01322 221010 - sales@swiftltd.co.ukMon–Fri · 9am–5pm Sat · By appointment © 2026 Swift Home Improvements Ltd · Company No. 03679915 · FENSA Registered Privacy Policy·Terms & Conditions·£5m Public Liability·£10m Employers' Liability CallRequest Free Quote