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Window fitters in London

Replacing the windows in a 3-bed semi in London typically costs £6,200 (3-bed semi, nine uPVC casement windows, fitted), with most jobs between £5,000 and £7,500 including VAT. That is 25% above the UK average, because local fitters charge around £240–£340 a day.

Covers London, Croydon, Bromley, Ealing, Enfield, Kingston upon Thames and the surrounding areas.

A Victorian terrace in London with tall windows over steps up to the front doors.

Replacement window prices in London

HomeTypical hereUK typical
Replacement windows for a flat 1 or 2-bed flat, three to five uPVC casement windows, fitted£3,000£2,400
Replacement windows for a 2-bed terrace 2 to 3-bed terrace, four to eight uPVC casement windows, fitted£4,800£3,800
Replacement windows for a 3-bed semi 3-bed semi, nine uPVC casement windows, fitted£6,200£5,000
Replacement windows for a detached house 4-bed detached house, twelve uPVC casement windows, fitted£8,900£7,100

Guide prices including VAT, +25% against the UK average. Indicative, not quotations.

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Replacing windows in London

Replacing windows in London usually starts with a question about who decides. In a converted house or a leasehold block the freeholder may control the frames, and in a conservation area the council can expect the street side to keep its original pattern. Fitters who work in the capital every week know which boroughs are strict, so ask them for recent jobs near you.

Most of inner London's homes are Victorian and Edwardian terraces, or flats carved out of them, with tall sash windows at the front and plainer casements at the back. Outer boroughs such as Bromley and Ealing are mostly interwar semis with bay windows. Flats and shared houses add a second decision-maker to many jobs.

Planning and building rules in London

Conservation areas are widespread across the inner boroughs, and many have Article 4 directions that bring ordinary window changes under planning control. Check with your borough before you order anything visible from the street. Leasehold flats usually need the freeholder's consent as well, and some blocks specify the frame and the glass pattern.

Rules change, so check the current position with your council and the Planning Portal guide to doors and windows: read the official guidance.

How the weather affects new windows in London

London is one of the drier parts of the UK, so rain is rarely the problem for windows. Noise often is, along the main roads into Croydon and under the flight paths into Heathrow, and warm summer nights make a window that opens safely and a good trickle vent matter more than they sound.

Window fitters covering London

Ratings combine reviews collected by Local Quotes with ratings each tradesperson has supplied from other review platforms. We do not collect or verify them. The full breakdown is on their Local Quotes profile.

Recent window enquiries in London

What people in London have actually asked for, in their own words. Names, contact details and street addresses are not shown.

  1. November 2026N8

    Need replacement of single pane/section of single glazed window on ground level of house.

  2. October 2026RM7

    Customer is looking to replace their windows. They are still considering options so please call to discuss what would be best for their home. Homeowner lives in Romford area 2+ windows Supply and install

  3. October 2026SE25

    Call back anytime. Type of window / door: Windows Glass replacement only: Yes Number of windows requiring repair: 2 Number of doors requiring repair: 1 Other repair required: no Quote requested on glazing / repairs

  4. October 2026E4

    Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.

  5. October 2026E2

    Crack on inside of double glazing window in bathroom - awkward to get to

  6. October 2026SW15

    Customer made an online enquiry for replacement windows via one of our websites. Confirmed via. 2+ windows Supply and install Please call to arrange an appointment to quote.

Enquiries submitted through LeadsDoWork in the last two years. Shown to give a sense of the work people in London are having done – they are not reviews, and no rating is implied.

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