RH18 DISTRICT · MID SUSSEX
Grinstead mobile coverage Three 100% indoors here, 85% across Redhill RH18 · Mid Sussex
No network wins RH18 on overall coverage: all four score 100/100.
RH18: Grinstead, Danehill, Hartfield, Forest Row, Fletching (Mid Sussex, Wealden).
RH18 scores
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EE
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O2
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Three
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Vodafone
Ofcom Mobile Coverage data (May 2025), measured across 68 addresses in 5 sampled postcodes: RH18 5AA, RH18 5BE, RH18 5DE, RH18 5EB, RH18 5LA. Methodology.
How RH18 compares
Against the Redhill average
- Three indoors: 100% here, 85% across Redhill (+15).
- Vodafone indoors: 100% here, 90% across Redhill (+10).
- EE indoors: 100% here, 92% across Redhill (+8).
Weakest spot in Redhill: RH17 Ansty, where Three reaches 0% indoors.
Indoor signal around RH18
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| RH18 Grinstead (here) | – | 100% | 100% | 100% | 100% |
| RH19 Grinstead, Felbridge | 5 | 100% | 100% | 100% | 100% |
| RH7 Godstone, Felbridge | 10 | 100% | 100% | 100% | 100% |
| RH17 Ansty, Danehill | 13 | 100% | 100% | 0% | 47% |
| RH10 Worth, Pound Hill | 14 | 100% | 100% | 100% | 100% |
| Redhill average | – | 92% | 96% | 85% | 90% |
Biggest difference nearby: Three indoors, 100% here and 0% in RH17 Ansty, 13 km away.
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1pMobile runs on EE's network: £5 a month for 5GB (read 19 October 2026). A price, not a coverage ranking: Ofcom separates no network here.
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