| King Double Glazing | 020 8478 0765 | | 377 High Road, Ilford, IG1 1TF |  Map & Directions |
| Cliftons | 020 8911 0600 | | Olympic House, 28-42 Clements Road, Ilford, IG1 1BA | | Map & Directions |
| Skylight Double Glazing | 020 8478 5000 | | 411 High Road, Ilford, IG1 1TJ | | Map & Directions |
| Palace Builders & Windows | 020 8514 5767 | | 58 Ilford Lane, Ilford, IG1 2JY | | Map & Directions |
| London Window Co Ltd | 020 8478 7888 | | 118b Windsor Road, Ilford, IG1 1HF | | Map & Directions |
| Riverside Glazing | 020 8597 2185 | | 49 Downshall Avenue, Ilford, IG3 8NB | | Map & Directions |
| A1 Double Glazing | 020 8591 5459 | | Alfreds Way, Barking Industrial Park, Barking, IG11 0TJ | | Map & Directions |
| Sealdraught Ltd | 020 8505 6611 | | 185 St. Barnabas Road, Woodford Green, IG8 7DG | | Map & Directions |
| Loughton Window Co | 020 8281 9519 | | 15 Hazelwood, Loughton, IG10 4ET | | Map & Directions |
| B & B Sealed Units Ltd | 020 8501 5222 | | 2 Hainault Business Park, Fowler Road, Ilford, IG6 3UT | | Map & Directions |
| Fortress Windows | 020 8551 6888 | | 704 Cranbrook Road, Ilford, IG6 1HP | | Map & Directions |
| Taylorglaze Ltd | 020 8281 8282 | | 43 Hawthorn Road , Buckhurst Hill, IG9 6JF | | Map & Directions |
| Carr Portable Buildings Ltd | 020 8594 1269 | | 157 North Street, Barking, IG11 8LA | | Map & Directions |
| Supreme-O-Glaze Home Products Ltd | 020 8518 2360 | | 555 Cranbrook Road, Ilford, IG2 6HE | | Map & Directions |
| Rainbow Window Stores Ltd | 020 8500 0330 | | 11-17 Fowler Road, Ilford, IG6 3UJ | | Map & Directions |
| Doorway Maintenance Co | 020 8507 9306 | | 17a Harrow Road, Barking, IG11 7QZ | | Map & Directions |
| Direct Trade Windows & Doors | 020 8559 0505 | | 42 Station Way, Buckhurst Hill, IG9 6LN | | Map & Directions |
| Advance Window Systems | 020 8507 9006 | | 1b Alfreds Way, Barking Industrial Park, Barking, IG11 0TJ | | Map & Directions |
| J. B. Double Glazing | 020 8591 1146 | | 163 North Street, Barking, IG11 8LA | | Map & Directions |
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