Bisham mobile coverage Within 8 points of the Slough average SL7 · Buckinghamshire
No network wins SL7 on overall coverage: all four are within 1 point, but indoors EE, Three and Vodafone reach 100% of sampled addresses and O2 94%.
SL7: Bisham, Marlow, Hambleden, Medmenham, Great Marlow, Little Marlow, Marlow Bottom, Cookham (Buckinghamshire, Windsor and Maidenhead).
SL7 scores
Ofcom Mobile Coverage data (May 2025), measured across 89 addresses in 6 sampled postcodes: SL7 1AG, SL7 1EX, SL7 2NY, SL7 2QL, SL7 3AW, SL7 3ER. Methodology.
How SL7 compares
Every network here is within 8 points of the Slough average and of SL8 Cookham, SL6 Bray, SL1 Cippenham and SL2 Burnham, indoors and outdoors.
Weakest spot in Slough: SL9 Denham, where EE reaches 14% indoors.
Indoor signal around SL7
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| SL7 Bisham (here) | – | 100% | 94% | 100% | 100% |
| SL8 Cookham, Hedsor | 5 | 100% | 100% | 100% | 100% |
| SL6 Bray, Bisham | 7 | 100% | 100% | 100% | 100% |
| SL1 Cippenham, Burnham small sample | 13 | 100% | 100% | 100% | 100% |
| SL2 Burnham, Britwell | 13 | 100% | 100% | 100% | 100% |
| Slough average | – | 95% | 97% | 100% | 100% |
Small sample: under 30 addresses sampled.
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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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