By city
London 17Birmingham 10Manchester 7Leeds 7Norwich 7Sheffield 6Derby 6Bristol 6Coventry 6Swindon 6Nottingham 6Cardiff 6Huddersfield 5Milton Keynes 5Preston 5Hull 5Southampton 4Glasgow 4Cheltenham 4Edinburgh 4Peterborough 4Bedford 4Reading 4York 4
| Name | Category | Address | City | Opening times |
|---|---|---|---|---|
| Corona Contracts Ltd | Blinds shop | 4a, Hillthorpe Farm, Unit 4f Knoll Ln | Preston | Mon–Fri 08:00–17:00 |
| Cotswold Home Improvement Supercentre | Window supplier | Unit 3, Beech Court, Bourton Industrial Estate | Cheltenham | Mon–Tue 07:30–17:00 |
| Creative UPVC | Aluminium supplier | 15 Kingsbarn Cl | Preston | Mon–Fri 09:00–17:00 |
| Crystal Clear Bristol | Window supplier | 24 Emery Rd. | Bristol | Thu 09:00–16:30 |
| Crystal Conservatories Ltd | Conservatory contractor | 2a Orgreave Dr | Sheffield | Fri 08:00–16:30 |
| D Sunderland & Son - Stained Glass / Leaded Lights / Timber Sash & Casement Window Repair | Stained glass studio | 73 Victoria Gardens | Leeds | Daily 08:00–20:00 |
| Derby shopfront shutter | Shopfitter | 32 Kedleston St | Derby | Daily Open 24 hours |
| Diamond Glass and Windows Ltd | Glass merchant | 8-9, Centenary Industrial Estate, Hughes Rd | Brighton | Mon 08:00–17:00 |
| Don Valley Window Systems | Window supplier | 207a City Rd | Sheffield | Mon–Fri 09:00–17:00 |
| Doors & Windows Direct Ltd Derby Derbyshire | Double glazing installer | Wetherby Rd | Derby | Mon 09:00–18:00 |
| Doors4U | Door shop | 787 Warwick Rd | Birmingham | Mon–Fri 09:00–16:45 |
| Doorwins | Window supplier | Office 11, Dearden House, W Gate | London | Mon–Sat 07:00–22:00 |
| Doorwins Aluminium Windows and Doors | Aluminium window | office 3, 186 Greenford Ave | London | Mon–Sat 07:00–22:00 |
| Dor-Jan Windows & Doors Ltd | Window supplier | Unit 17, 19 Fenlake Business Centre | Peterborough | Mon–Fri 08:30–17:30 |
| Dr.windscreen ltd | Windshield repair service | 2 Cobnar Ave | Sheffield | Mon–Fri 08:00–17:00 |
| Dunster House Windows and Doors | Window supplier | Factory, 2 Caxton Rd | Bedford | Mon–Fri 08:30–17:30 |
| Ealum Ltd | Double glazing installer | 40 Caversham Rd | Reading | Mon–Sat 09:00–17:00 |
| Ebor Windows | Window supplier | Unit 1 Keswick Way | York | Mon–Fri 09:00–16:00 |
| Eco Tech Conservatories | Conservatory contractor | 3 The Quadrant | Coventry | Mon–Sat 08:00–20:00 |
| Ecoframes & Energy Saving Solutions Ltd | Window installation service | Unit4, Chapman Street Industrial Estate, Chapman St | Hull | Mon–Thu 07:30–16:30 |
| Edinburgh Glass & Glazing | Window supplier | 22 Featherhall Ave | Edinburgh | Mon–Fri 08:00–16:30 |
| Elmhurst Windows | Window supplier | 3 Austhorpe View | Leeds | Mon–Sat 10:00–15:00 |
| Equinox Glass & Glazing | Window supplier | Unit 2a Bagbury Park, The Street, Lydiard Millicent | Swindon | Mon–Fri 08:30–16:30 |
| EYG Home Improvements | Double glazing installer | Wiltshire Rd | Hull | Mon–Fri 09:00–17:30 |
| FA North Ltd | Joiner | 179 Carlton Hill | Nottingham | Mon 07:30–17:00 |
| Fenster Glazing - Windows & Doors Showroom | Double glazing installer | 98 Alston Dr | Milton Keynes | Mon–Fri 08:30–17:00 |
| Festa - Architectural Glazing & Luxury Entrance Doors | Aluminium window | Unit D, The Dyeworks, Albert St | Huddersfield | Fri 08:30–17:00 |
| Four Seasons Home Improvements | PVC windows supplier | 5 Garnet Ct | Nottingham | Mon 08:00–16:00 |
| GAP Ltd: Warrington Depot | Window supplier | Gateway 49 Trade park, Unit 4 | Warrington | Mon–Fri 07:30–17:00 |
| Gardinia Windows (Kirklees) Ltd | Window installation service | 3 Leeds Rd | Huddersfield | Mon–Sat 10:00–15:00 |