The 10 window and door fitters from Google's results for North London, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleLondon
North London Boxsash installs double-glazed box sash windows, timber casements and external doors across North London. Focused on period properties, the business helps homeowners update the appearance and thermal efficiency of their original window frames.
020 3589 4163 25 The Vale, London N14 6HR
on GoogleNew Barnet, Barnet
Barnet Window Company supplies and installs replacement windows, doors, and conservatories across Barnet, Enfield, and London. Product options include bi-folding doors, sash windows, and secondary glazing systems for residential properties.
020 8449 4747 39 Bulwer Rd, New Barnet, Barnet EN5 5EU
on GoogleLondon
Specialising in period properties, London Sash supplies and installs custom sash windows throughout North London, including Highgate, Muswell Hill and Islington. The team carries out full window replacements as well as repairs to preserve original architectural details.
020 8017 1632 41 High St, London SE20 7HJ
on GoogleArgall Ave, London
Double glazed windows, doors and conservatories are supplied and installed by BBL Windows for both residential and commercial properties. From its base in London, the company serves locations right across North London, including Haringey, Newham and Tower Hamlets.
020 8800 1838 Unit 8, Roxwell Trading Park, Argall Ave, London E10 7QY
on GoogleAylmer Rd, London
Swift Glazing provides double glazing installations alongside 24-hour emergency repairs across North London. Based in Aylmer Road, the company fixes damaged uPVC window frames, handles, hinges and locks to restore security to homes and commercial properties.
07999 933309 29 Aylmer Parade, Aylmer Rd, London N2 0PE
on GoogleFinsbury Park, London
Timber, aluminium and uPVC windows and doors are manufactured and installed by Stroudgreen Windows. Operating from Finsbury Park, the company fits traditional timber sash units for period restorations as well as contemporary aluminium frames for modern houses.
020 7281 1800 178 Stroud Green Rd, Finsbury Park, London N4 3RS
on GoogleChingford Industrial Estate, Chingford
Operating from a factory and showroom in Chingford, Northlondon Windows supplies and installs uPVC and aluminium windows, composite doors, and bi-fold doors. Its fitters also construct garden rooms and replace sash windows for residential properties in and around Barnet.
020 8345 6008 unit 14, Chingford Industrial Estate, Chingford E4 8DJ
on GoogleHurricane Way, Wickford
Ken Rhodes supplies and fits double glazing, UPVC windows, entrance doors, and conservatories across East London. The firm also installs bi-fold doors, fascias, soffits, and guttering, alongside offering replacement conservatory roofs and general repairs.
01708 227777 4, Victoria Court, Hurricane Way, Wickford SS11 8YY
on GoogleNorth London
Secondary Glazing Installers fits lightweight plexiglass secondary glazing systems to period and listed buildings across North London. Designed to retain original period windows, these thermal additions help homeowners lower heating bills while preserving character features.
North London
The London Window Company supplies and fits double glazed windows, front doors, patio doors, and roofline products across Central and North London. It also constructs conservatories and orangeries, alongside installing timber frames and sliding sash windows.
In North London, upvc window typically costs £470 – £940. Labour in Greater London runs 18% above the UK median, which accounts for most of the difference from the same job elsewhere.
These are the firms from Google's results for "window fitters north london". They are ranked on Google rating, online presence and other factors.
The figures above are North London ranges. These explain what drives them, so you can read a quote properly.
2026 prices per window and for a whole house in uPVC, aluminium and timber, the extras a quote can leave out, and the certificate and planning rules in each UK nation.
The size limits that let a conservatory go up without planning permission in England, when the building regulations exemption applies and how it is lost, and the rules in Wales, Scotland and NI.
What mist between the panes means, why it will not go away, what a new sealed unit costs in 2026, when the whole window is worth replacing, and the rules for replacing only the glass.
Replacement windows must meet building regulations for thermal performance. A FENSA registered installer self-certifies and sends you a certificate. An unregistered one means you need a building control application, and no certificate is a problem when you sell.