England

Window Locks in Bedfordshire (Bedford, Luton, Dunstable, Leighton Buzzard, Biggleswade, Sandy, Ampthill, Arlesey, Flitwick, Houghton Regis, Kempston, Linslade, Potton, Shefford, Stotfold, Wixams, Woburn Sands, )
Window Locks in Berkshire (Reading, Bracknell, Maidenhead, Newbury, Windsor, Wokingham, Abingdon, Ascot, Crowthorne, Earley, Eton, Hungerford, Sandhurst, Thatcham)
Window Locks in Buckinghamshire (Aylesbury, Milton Keynes, Slough, Buckingham, High Wycombe, Beaconsfield, Burnham, Chesham, Fenny Stratford, Marlow, Newport, Olney, Princes Risborough, Stony Stratford, Wendover, Winslow, Woburn Sands, Wolverton)
Window Locks in Cambridgeshire (Cambridge, Wisbech, Ely, March, Whittlesey, Chatteris, Linton, Fulbourn, Godmanchester, Hanley Grange, Huntingdon, Littleport, March, Northstowe, Ramsey, St Ives, St Neots, Soham, Wisbech)
Window Locks in Cheshire (Chester, Stockport, Ellesmere Port, Birkenhead, Wallasey, Runcorn, Macclesfield, Crewe, Warrington, Sandbach, Northwich, Nantwich, Middlewich, Malpas, Knutsford, Frodsham, Congleton, Bollington, Alsager,)
Window Locks in Cornwall (Bodmin, Truro, Camborne, Redruth, St. Austell, Falmouth, Penzance, Newquay)
Window Locks in Cumberland / Cumbria (Carlisle, Whitehaven, Workington, Penrith, Keswick, Brampton, Windermere, Wigton, Ulverston, Silloth, Sedbergh, Milnthorpe, Millom, Longtown, Kirkby Stephen, Kirkby Lonsdale, Harrington, Egremont, Cockermouth, Cleator Moor)
Window Locks in Derbyshire (Derby, Chesterfield, Ilkeston, Swadlincote, Buxton, Matlock, Ashbourne, Alfreton, Bakewell, Bolsover, Darley Dale, Dronfield, Dronfield Woodhouse, Eckington, Glossop, Glossopdale, Hadfield, Heanor, Ilkeston, Killamarsh, Langley Mill, Long Eaton, Matlock, Melbourne, Netherthorpe, New Mills, Newhaven, Renishaw, Ripley, Sandiacre, Shirebrook, Staveley, Swadlincote, Tansley, Whaley Bridge, Wirksworth)
Window Locks in Devon (Exeter, Plymouth, Torquay, Paignton, Barnstaple, Tiverton, Newton Abbot, Tavistock, Axminster, Bideford, Chagford, Chudleigh, Colyford, Dartmouth, Exmouth, Great Torrington, Hartland, Ilfracombe, Kingsbridge, Okehampton, Salcombe, Sidmouth, Tavistock, Topsham, )
Window Locks in Dorset (Dorchester, Poole, Weymouth, Sherborne, Wimborne Minster, Shaftesbury, Beaminster, Blandford Forum, Bournemouth, Bridport, Ferndown, Gillingham, Highcliffe, Lyme Regis, Mudeford, Sherborne, Stalbridge, Swanage, Verwood, Wareham, )
Window Locks in Durham (Durham, Sunderland, Stockton-on-Tees, Darlington, Hartlepool, Gateshead, Washington)
Window Locks in Essex (Chelmsford, Basildon, Romford, Southend, Colchester, Harlow, Brentwood, West Ham, Abridge, Billericay, Braintree, Brightlingsea, Buckhurst Hill, Burnham-on-Crouch, Canvey Island, Chafford Hundred, Chipping Ongar, Clacton-on-Sea, Coggeshall, Corringham, Dovercourt, Epping, Flitch Green, Frinton and Walton, Frinton-on-Sea, Grays, Great Clacton, Great Dunmow, Hadleigh, Halstead, Harwich, Heybridge, Hockley, Holland-on-Sea, Jaywick, Laindon, Langdon Hills, Loughton, Maldon, Manningtree, Parkeston, Rayleigh, Rochford, Saffron Walden, South Benfleet, South Woodham Ferrers, Southminster, Stanford-le-Hope, Thaxted, Waltham Abbey, Walton-on-the-Naze, West Mersea, West Thurrock, Wickford, Witham, Wivenhoe, )
Window Locks in Gloucestershire (Gloucester, Bristol, Cheltenham, Stroud, Cirencester, Tewkesbury, Berkeley, Cinderford, Coleford, Cowley, Dursley, Fairford, Innsworth, Lechlade, Longborough, Mitcheldean, Nailsworth, Newent, Northleach, Painswick, Ruardean, Stonehouse, Stow-on-the-Wold, Tetbury, Winchcombe, )
Window Locks in Hampshire (Winchester, Southampton, Portsmouth, Bournemouth, Basingstoke, Newport, Aldershot, Alton, Andover, Bordon, Eastleigh, Emsworth, Fareham, Farnborough, Fleet, Fordingbridge, Gosport, Havant, Hedge End, Lymington, New Alresford, New Milton, Odiham, Petersfield, Portchester, Ringwood, Southsea, Tadley, Waterlooville, Whitchurch, Wickham, Woolston, Yateley, )
Window Locks in Herefordshire (Hereford, Ross-on-Wye, Leominster, Ledbury, Bromyard, Kington)
Window Locks in Hertfordshire (Hertford, Watford, St. Albans, Hemel Hempstead, Stevenage, Hatfield, Apsley, Baldock, Berkhamsted, Bishop's Stortford, Borehamwood, Broxbourne, Buntingford, Bushey, Carpenders Park, Cheshunt, Chorleywood, Eastbury, Grovehill, Harpenden, Hatfield, Hemel Hempstead, Hitchin, Hoddesdon, Hunsdon, Letchworth, Moor Park, Potters Bar, Rickmansworth, Royston, Sawbridgeworth, South Oxhey, Spellbrook, Tring, Waltham Cross, Ware, Welwyn Garden City)
Window Locks in Huntingdonshire (Huntingdon, St. Ives, St. Neots, Ramsey, Yaxley)
Window Locks in Kent (Maidstone, Canterbury, Bromley, Rochester, Margate, Folkestone, Dover, Greenwich, Ashford, Broadstairs, Cranbrook, Dartford, Deal, Edenbridge, Faversham, Fordwich, Gillingham, Gravesend, Herne Bay, Lydd, Margate, Paddock Wood, Queenborough, Rainham, Ramsgate, Royal Tunbridge Wells, Sandwich, Sevenoaks, Sheerness, Sittingbourne, Snodland, Southborough, Strood, Swanley, Tenterden, Tonbridge, West Malling, Whitstable)
Window Locks in Lancashire (Lancaster, Liverpool, Manchester, Preston, Bolton, Warrington, Barrow-in-Furness, Accrington, Adlington, Bacup, Blackpool, Burnley, Carnforth, Chorley, Cleveleys, Clitheroe, Darwen, Fleetwood, Garstang, Great Harwood, Haslingden, Kirkham, Leyland, Longridge, Lytham St Annes, Morecambe, Ormskirk, Oswaldtwistle, Padiham, Penwortham, Ramsbottom, Rawtenstall, Skelmersdale, Thornton, Wesham, Whitworth, )
Window Locks in Leicestershire (Leicester, Loughborough, Hinckley, Melton Mowbray, Coalville, Lutterworth, Braunstone Town, Market Bosworth, Oadby, Shepshed, Syston, Wigston Magna)
Window Locks in Lincolnshire (Lincoln, Grimsby, Scunthorpe, Boston, Grantham, Stamford, Skegness, Louth, Alford, Bourne, Brigg, Broughton, Burgh Le Marsh, Caistor, Coningsby, Crowle, Epworth, Gainsborough, Grantham, Holbeach, Horncastle, Immingham, Long Sutton, Mablethorpe, Market Deeping, Market Rasen, North Hykeham, Spalding, Stamford, Wainfleet, Winterton)
Window Locks in Middlesex (City of London, Harrow, Enfield, Staines, Ealing, Potters Bar, Westminster )
Window Locks in Norfolk (Norwich, Great Yarmouth, King's Lynn, Dereham, Cromer, Hunstanton, Thetford, Aylsham, Cromer, Fakenham, Hunstanton, North Walsham, Sheringham, Watton, Wroxham, Wymondham)
Window Locks in Northamptonshire (Northampton, Peterborough, Corby, Kettering, Wellingborough, Corby, Daventry, Dingley, Farthingstone, Guilsborough, Hardingstone, Harpole, Kingsthorpe, Kislingbury, Maidford, Pitsford, Rushden, Silverstone, Stanwick, Upper Boddington, Yardley Hastings)
Window Locks in Northumberland (Alnwick, Newcastle-upon-Tyne, Morpeth, Hexham, Berwick-upon-Tweed, Allendale, Amble, Ashington, Bassington, Bedlington, Berwick-upon-Tweed, Blyth, Bullers Green, Corbridge, Cramlington, Haltwhistle, Morpeth, Ponteland, Rothbury, Tarset, Wooler)
Window Locks in Nottinghamshire (Nottingham, Mansfield, Worksop, Newark, Retford, Southwell, Arnold, Attenborough, Beeston, Bingham, Bracebridge, Bulwell, Carlton, Cotgrave, Eastwood, Hucknall, Kilton, Kimberley, Kirkby-in-Ashfield, Market Warsop, Netherfield, Ollerton, Southwell, Stapleford, Sutton-in-Ashfield, Toton, West Bridgford)
Window Locks in Oxfordshire (Oxford, Banbury, Witney, Bicester, Henley-on-Thames, Carterton, Thame, Abingdon-on-Thames, Burford, Carterton, Charlbury, Chipping Norton, Didcot, Faringdon, Wallingford, Wantage, Watlington, Woodstock)
Window Locks in Rutland (Oakham, Uppingham. Cottesmore)
Window Locks in Shropshire (Shrewsbury, Telford, Oswestry, Bridgnorth, Whitchurch, Market Drayton, Ludlow, Bishop's Castle, Broseley, Church Stretton, Cleobury Mortimer, Craven Arms, Dawley, Ellesmere, Madeley, Much Wenlock, Newport, Oakengates, Shifnal, Wellington, Wem, )
Window Locks in Somerset (Taunton, Bath, Weston-super-Mare, Yeovil, Bridgwater, Wells, Glastonbury, Axbridge, Clevedon, Crewkerne, Frome, Highbridge, Ilminster, Keynsham, Minehead, Nailsea, North Petherton, Norton Radstock, Portishead, Radstock, Shepton Mallet, South Petherton, Watchet, Wellington, Wincanton, )
Window Locks in Staffordshire (Stafford, Stoke-on-Trent, Wolverhampton, Walsall, Cannock, Lichfield, Biddulph, Burntwood, Cheadle, Colwich, Eccleshall, Fazeley, Fenton, Hanley, Kidsgrove, Leek, Longton, Newcastle-under-Lyme, Penkridge, Rugeley, Stone, Tamworth, Uttoxeter, )
Window Locks in Suffolk (Ipswich, Bury St. Edmunds, Lowestoft, Felixstowe, Sudbury, Haverhill, Bungay, Aldeburgh, Beccles, Brandon, Clare, Eye, Hadleigh, Halesworth, Kesgrave, Leiston, Mildenhall, Needham Market, Newmarket, Orford, Saxmundham, Southwold, Walton, Woodbridge)
Window Locks in Surrey (Guildford, Croydon, Woking, Sutton, Kingston-on-Thames, Wandsworth, Wimbledon, Brixton, Addlestone, )
Window Locks in Sussex (Chichester, Brighton, Worthing, Crawley, Hastings, Eastbourne, Bognor Regis, Horsham, Ashford, Banstead, Bellfields, Brookwood, Camberley, Caterham, Dorking, Earlswood, Egham Hythe, Englefield Green, Esher, Ewell, Farleigh, Farnham, Guildford, Haslemere, Hurst Green, Hythe End, Leatherhead, Oxted, Redhill, Shepperton, Sunbury-on-Thames, Walton-on-Thames, Weybridge, Whyteleafe, Woking)
Window Locks in Warwickshire (Warwick, Birmingham, Coventry, Nuneaton, Rugby, Solihull, Stratford-upon-Avon, Alcester, Atherstone, Bedworth, Coleshill, Henley-in-Arden, Kenilworth, Leamington Spa, Rugby, Shipston-on-Stour, Southam, Whitnash)
Window Locks in Westmorland (Appleby, Kendal, Windermere, Ambleside, Kirkby Lonsdale)
Window Locks in Wiltshire (Trowbridge, Salisbury, Swindon, Chippenham, Devizes, Marlborough, Warminster)
Window Locks in Worcestershire (Worcester, Dudley, Kidderminster, Stourbridge, Halesowen, Malvern, Evesham)
Window Locks in Yorkshire
    North Riding (Northallerton, Middlesbrough, Scarborough, Whitby)
    East Riding (Beverley, Hull, Bridlington, Driffield, Hornsea, Filey)
    West Riding (Wakefield, Leeds, Sheffield, Bradford, Halifax, Harrogate)
    York (within the Walls)

London

Window Locks in East London (Aldersbrook, Aldgate East, All Saints, Beckton, Bethnal Green, Blackhorse Road, Blackwall, Bow, Bow Church, Bow Road, Bromley by Bow, Canary Wharf, Canning Town, Chingford, Chingford Green, Chingford Hatch, Clapton, Clapton Park, Commercial Road, Cubitt Town, Custom House, Cyprus, Dalston, Dalston Junction, Devons Road, East Ham, East India, East India Dock Road , Forest Gate, Gilwell Park, Hackney, Hackney Marshes, Hackney Wick, Haggerston, Hale End, Heron Quays, Higham Hill, Highams Park, Homerton, Island Gardens, Lea Bridge, Leyton, Leyton Marshes, Leytonstone, Limehouse, Little Ilford, London Arena, Lower Clapton, Manor Park, Mile End, Mile End, Road Millwall, Mudchute, Newham, North Woolwich, Old Ford, Plaistow, Plashet, Poplar, Pudding Mill Lane, Sewardstone, Shacklewell, Shadwell, Silvertown, Snaresbrook, South Hackney, South Quay, South Woodford, Spitalfields, Stepney, Stepney Green, Stratford, Stratford Marsh, Temple Mills, Tower Hamlets, Upper Clapton, Upper Walthamstow, Upton, Upton Park, Victoria Docks, Victoria Park, Walthamstow, Walthamstow Central, Wanstead, Wanstead Park, Wapping, West Ham, West India Quay, Westferry, Whitechapel)
Window Locks in North London (Alexandra Palace, Alexandra Park, Archway, Arsenal , Balls Pond, Road Barnsbury, Bounds Green, Bowes Park, Caledonian Road, Canonbury, Colney Hatch, Cranley Gardens, Crouch End, Dartmouth Park, Drayton Park, East Barnet, East Finchley, Edmonton, Essex Road, Finchley, Finchley Central, Finsbury Park, Fortis Green, Friern Barnet, Grange Park, Haringey, Harringay, Highbury, Highbury and Islington, Highgate, Highgate Wood, Highwood Hill, Holloway, Holloway Road, Hornsey, Hornsey Lane, Hornsey Rise, Hornsey Vale, Hoxton, Islington, Kenwood House, Kingsland, Lower Edmonton, Lower Holloway, Manor House, Muswell Hill, New Southgate, Newington Green, Noel Park, North Finchley, Oakleigh Park, Oakwood, Osidge, Palmers Green, Pentonville, Seven Sisters, Seven Sisters Road, South Tottenham, Southgate, Stamford Hill, Stoke Newington, Stroud Green, Tottenham, Tottenham Hale, Totteridge, Totteridge & Whetstone, Tufnell Park, Turnpike Lane, Upper Edmonton, Upper Holloway, Waltham Forest, West Finchley, West Green, Whetstone, White Hart Lane, Winchmore Hill, Wood Green, Woodside Park)
Window Locks in South East London (Abbey Wood, Anerley, Avery Hill, Bellingham, Bermondsey, Blackheath, Blackheath Park, Borough, Bostall Woods, Brockley, Camberwell, Catford, Charlton, Crofton Park, Crystal Palace, Denmark Hill, Deptford, Deptford High Street, Docklands, Dulwich, East Dulwich, Elephant and Castle, Elmers, End Eltham, Forest Hill, Gipsy Hill, Greenwich, Grove Park, Herne Hill, Hither Green, Honor Oak, Honor Oak Park, Horniman Museum, Kennington, Kidbrooke, Ladywell, Lambeth, Lambeth North, Lee, Lee Green, Lesnes Abbey, Lewisham, London Bridge, Lower Sydenham, Mottingham, New Cross, New Cross Gate, New Eltham, New Kent Road, Newington, North Dulwich, Norwood, Norwood Junction, Nunhead, Old Kent Road, Oval, Peckham, Peckham Rye, Penge, Plumstead, Ranger's House, Riverside, Rotherhithe, Rye Lane, Shooter's Hill, South Bank, South Norwood, Southwark, Southwark Cathedral, St John's, Surrey Quays, Sydenham, Sydenham Hill, Thamesmead, Tulse Hill, Upper Norwood, Upper Sydenham, Walworth, Waterloo, Well Hall, West Dulwich, West Heath, West Norwood, Westminster Bridge , Woodside, Woolwich)
Window Locks in South West London (Balham, Barnes, Barnes Bridge, Battersea, Belgravia, Brixton, Brompton, Brompton Road, Buckingham Palace, Bushey Mead, Castlenau, Chelsea, Chelsea Embankment, Cheyne Walk, Clapham, Clapham Common, Clapham Junction, Clapham North, Clapham South, Coldharbour Lane, Colliers Wood, Copse Hill, Cottenham Park, Cromwell Road, Earl's Court, Earlsfield, East Putney, East Sheen, Fulham, Fulham Broadway, Fulham Palace Road, Furzedown, Gloucester Road, Green Park, Haydons Road, Horseferry Road, Hyde Park Corner, Kensington Gore, Knightsbridge, Lavender Hill, Loughborough Junction, Merton, Mortlake, Nine Elms, Norbury, Parsons Green, Putney, Putney Bridge, Putney Heath, Putney Vale, Queen's Gate, Queens Road, Raynes Park, Rocks Lane, Roehampton, Sands End, Sloane Square, South Kensington, South Lambeth, South Wimbledon, Southfields, St James's Park, Stockwell, Streatham, Streatham Common, Streatham Hill, Summerstown, Tooting Bec, Tooting Broadway, Tooting Graveney, Upper Tooting, Vauxhall, Vauxhall Bridge, Victoria, Wandsworth, Wandsworth Common, Wandsworth Road, Wandsworth Town, West Brompton, West Hill, Westminster, Westminster Abbey, Wimbledon, Wimbledon Common, Wimbledon Park)
Window Locks in West London (Acton, Acton Green, Acton Town, Barons Court, Bayswater, Bayswater Road, Bedford Park, Bond Street, Boston Manor, Brook Green, Chiswick, Chiswick High Road, Chiswick House, Chiswick Park, City of Westminster, Drayton Green, Ealing, Ealing Broadway, Ealing Common, East Acton, Elthorne Park, Goldhawk Road, Goodge Street, Great Portland Street, Great West Road, Gunnersbury, Hammersmith, Hammersmith & Fulham, Hanger Lane, Hanwell, High Street Kensington, Holland Park, Kensal Town, Kensington, Kensington & Chelsea, Ladbroke Grove, Lancaster Gate, Latimer Road, Maida Hill, Maida Vale, Marble Arch, Marylebone, Mayfair, North Ealing, North Kensington, Northfields, Notting Hill, Notting Hill Gate, Olympia, Oxford Circus, Oxford Street, Paddington, Park Lane, Piccadilly Circus, Queensway, Ravenscourt Park, Regent Street, Royal Oak, Shepherds Bush, Soho, South Acton, South Ealing, Stamford Brook, Tottenham Court Road, Turnham Green, Uxbridge Road, Warren Street, Warwick Avenue, Warwick Park, West Acton, West Ealing, West Kensington, West Kilburn, Westbourne Green, Westbourne Grove, Westbourne Park, Western Avenue, Westway, White City)

Wales

Window Locks in Anglesey/Sir Fon (Beaumaris, Holyhead)
Window Locks in Brecknockshire/Sir Frycheiniog (Brecon, Builth Wells, Hay-on-Wye, Talgarth)
Window Locks in Caernarfonshire/Sir Gaernarfon (Bangor, Conwy,)
Window Locks in Carmarthenshire/Sir Gaerfyrddin (Carmarthen)
Window Locks in Cardiganshire/Ceredigion (Cardigan, Aberystwyth, New Quay, Tregaron)
Window Locks in Denbighshire/Sir Ddinbych (Denbigh, Wrexham, Ruthin)
Window Locks in Flintshire/Sir Fflint (Holywell, Buckley)
Window Locks in Glamorgan/Morgannwg (Cardiff, Swansea, Barry, Caerphilly)
Window Locks in Merioneth/Meirionnydd (Barmouth, Harlech)
Window Locks in Monmouthshire/Sir Fynwy (Monmouth, Newport, Blackwood, Chepstow)
Window Locks in Montgomeryshire/Sir Drefaldwyn (Montgomery, Newtown, Welshpool)
Window Locks in Pembrokeshire/Sir Benfro (Pembroke, Milford Haven, Haverfordwest, Tenby,)
Window Locks in Radnorshire/Sir Faesyfed (Knighton, New Radnor)

Scotland

Window Locks in Aberdeenshire (Aberdeen, Peterhead)
Window Locks in Angus/Forfarshire (Forfar, Dundee, Arbroath, Brechin, Montrose)
Window Locks in Fife (Dunfermline, Cowdenbeath)
Window Locks in Lanarkshire (Glasgow, Hamilton, Motherwell)
Window Locks in Midlothian/Edinburghshire (Edinburgh)
Window Locks in Renfrewshire (Johnstone, Port Glasgow, Kilmalcolm)