Windlesham mobile coverage Three 78% indoors here, 90% across Guildford GU20 · Surrey Heath
No network wins GU20 on overall coverage: all four are within 3 points, but indoors EE, O2 and Vodafone reach 100% of sampled addresses and Three 78%.
GU20: Windlesham, Bagshot, Chobham, Mount Hermon (Surrey Heath, Woking).
GU20 scores
Ofcom Mobile Coverage data (May 2025), measured across 51 addresses in 4 sampled postcodes: GU20 6AA, GU20 6DF, GU20 6HS, GU20 6LU. Methodology.
How GU20 compares
Against the Guildford average
- Three indoors: 78% here, 90% across Guildford (−12).
- Vodafone indoors: 100% here, 92% across Guildford (+8).
Weakest spot in Guildford: GU6 Cranleigh, where Three reaches 0% indoors.
Indoor signal around GU20
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| GU20 Windlesham (here) | – | 100% | 100% | 78% | 100% |
| GU18 West End, Windlesham | 2 | 100% | 95% | 100% | 100% |
| GU19 Windlesham, Winkfield | 3 | 100% | 100% | 100% | 100% |
| GU15 West End, Sandhurst | 7 | 100% | 100% | 100% | 98% |
| GU16 West End, Pirbright | 8 | 100% | 100% | 100% | 100% |
| Guildford average | – | 99% | 94% | 90% | 92% |
Biggest difference nearby: Three indoors, 78% here and 100% in GU18 West End, 2 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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