Lambourne mobile coverage EE 49% indoors here, 98% across Romford RM4 · Brentwood
Three has the best measured coverage in RM4: 98/100, 6 points ahead of O2 on Ofcom's overall score, with Vodafone within 1 point.
RM4: Lambourne, Navestock, Theydon Bois, Theydon Mount, Theydon Garnon, Stapleford Tawney, Stapleford Abbotts, Heaton (Brentwood, Epping Forest, Havering).
RM4 scores
Ofcom Mobile Coverage data (May 2025), measured across 143 addresses in 5 sampled postcodes: RM4 1AA, RM4 1AR, RM4 1EH, RM4 1EW, RM4 1LT. Methodology.
How RM4 compares
Against the Romford average
- EE indoors: 49% here, 98% across Romford (−49).
- O2 indoors: 48% here, 97% across Romford (−49).
- Vodafone indoors: 79% here, 99% across Romford (−20).
- Three indoors: 86% here, 94% across Romford (−8).
Weakest spot in Romford: RM14 Orsett, where Three reaches 14% indoors.
Lowest indoor figure of the 20 Romford districts sampled, for EE, O2 and Vodafone.
Indoor signal around RM4
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| RM4 Lambourne (here) | – | 49% | 48% | 86% | 79% |
| RM5 Barking, Dagenham | 4 | 100% | 100% | 100% | 100% |
| RM3 Heaton, Gooshays | 6 | 100% | 100% | 100% | 100% |
| RM1 Heaton, Hylands | 7 | 100% | 100% | 100% | 100% |
| RM2 Marshalls, Rise Park | 7 | 100% | 100% | 100% | 100% |
| Romford average | – | 98% | 97% | 94% | 99% |
Biggest difference nearby: O2 indoors, 48% here and 100% in RM5 Barking, 4 km away.
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iD Mobile runs on Three's network: £6 a month for 15GB (read 19 October 2026). A price, not a coverage ranking: Three leads this page on Ofcom's data alone.
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