Q1
Best network for SW2?
EE leads with 100/100 — driven by 100% 5G and 100% 4G in this densely populated urban part of South West London.
SW2 DISTRICT · LAMBETH
Best mobile network in Streatham Hill SW2 · Lambeth
EE, O2, Three and Vodafone all score 100/100 in SW2 — no network wins here on coverage. 100% 5G-grade · 100% 4G. Ofcom Mobile Coverage data (May 2025), measured across 118 addresses in 6 sampled postcodes.
The SW2 district covers Streatham Hill, Thornton, Herne Hill and St Martin's, in Lambeth. Signal varies street by street — scan your exact postcode below.
RESULT · SW2 · SOUTH WEST LONDON
Coverage for SW2 district
✓ ALL FOUR MEASURE THE SAME
All four networks
100/100
Ofcom measures all four networks identically in the SW2 district, so coverage is not the thing to choose on here. Compare price and contract length instead.
Full ranking — SW2
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EE
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O2
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Three
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Vodafone
Coverage analysis — SW2
No network wins South West London on coverage. All four score identically in Ofcom's measurements, across 118 addresses sampled in 6 postcodes. On a difference that small, EE, O2, Three and Vodafone will all work here — so choose on price, contract length and roaming, not on a coverage map. Coverage only becomes the deciding factor once you leave built-up areas, and it still varies street by street indoors: check your own postcode below to see the measurement for your address rather than for South West London as a whole.
Ranked by Ofcom's overall score: EE 100, O2 100, Three 100, Vodafone 100. The spread between best and worst is 0 points, which is inside the margin where a coverage figure stops being a useful tiebreak. Ofcom's data describes outdoor signal across sampled addresses; it cannot tell you how any of them behave inside your own building.
Why EE for SW2?
EE's 5G rollout in South West London is among the strongest nationally, covering 100% of premises in the SW2 district. For anyone streaming video, gaming on mobile, or relying on a mobile hotspot at home, this level of 5G penetration makes a real difference to day-to-day speed.
The runner-up in SW2 is O2 at 100/100 (100% 5G / 100% 4G). It is a close contest — both operators deliver strong coverage in SW2, and your choice may come down to tariff, handset preference, or existing contract.
Choosing a network in Streatham Hill
Every network reaches Streatham Hill, Thornton, Herne Hill and St Martin's to the same standard in Ofcom's data, so coverage cannot pick one for you here — price and contract length can. Compare what each is charging, then check the exact street you live on before you commit, because indoor signal still varies where the area figures match.
Some links on this page are affiliate links. If you switch through one we may be paid a commission. It never changes which network we rank first - that comes from Ofcom coverage data alone.
Explore the South West London area
View full coverage analysis for the South West London (SW) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — SW2
Q2
Is 5G available in SW2?
EE provides excellent 5G coverage at 100%. O2 follows at 100%.
Q3
Which network has the best 4G?
EE leads 4G too at 100%. Reliable 4G is critical in densely populated urban areas.
Q4
Is Three worth considering?
Three scores 100/100 in SW2 (100% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.