Q1
Best network for HP18?
EE leads with 98/100 — driven by 100% 5G and 100% 4G in this suburban part of Hemel Hempstead.
HP18 DISTRICT · BUCKINGHAMSHIRE
Best mobile network in Quainton HP18 · Buckinghamshire
EE scores 98/100 — the best measured network for HP18 in Hemel Hempstead, 10 points clear of the weakest. 100% 5G-grade · 100% 4G. Ofcom Mobile Coverage data (May 2025), measured across 46 addresses in 6 sampled postcodes.
The HP18 district covers Quainton, Waddesdon, Long Crendon and Stoke Mandeville, in Buckinghamshire. Signal varies street by street — scan your exact postcode below.
RESULT · HP18 · HEMEL HEMPSTEAD
Coverage for HP18 district
★ BEST MEASURED
EE
98/100
EE has the strongest measured coverage for the HP18 district in Hemel Hempstead, 10 points clear of the weakest network in Ofcom's data.
Full ranking — HP18
#1
EE
#2
Three
#3
O2
#4
Vodafone
Coverage analysis — HP18
According to Ofcom's Mobile Coverage data, EE comes out on top for Hemel Hempstead. In this suburban area, EE achieves an overall coverage score of 98/100 — driven by excellent 5G coverage (100%) and rock-solid 4G at 100%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
EE consistently leads Three by 0 points overall. While Three reaches 100% on 5G and 100% on 4G in Hemel Hempstead, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 88 and 88 respectively.
Why EE for HP18?
EE's 5G rollout in Hemel Hempstead is among the strongest nationally, covering 100% of premises in the HP18 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 HP18 is Three at 98/100 (100% 5G / 100% 4G). It is a close contest — both operators deliver strong coverage in HP18, and your choice may come down to tariff, handset preference, or existing contract.
Switching to EE in Quainton
EE has the strongest measured signal here — 98/100, with 100% 5G-grade and 100% 4G coverage across Quainton, Waddesdon, Long Crendon and Stoke Mandeville, 10 points clear of the weakest. A cheaper plan on a network that does not reach your street costs more than it saves, so start from the coverage and pick the plan second.
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 Hemel Hempstead area
View full coverage analysis for the Hemel Hempstead (HP) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — HP18
Q2
Is 5G available in HP18?
EE provides excellent 5G coverage at 100%. Three follows at 100%.
Q3
Which network has the best 4G?
EE leads 4G too at 100%. Reliable 4G is critical in suburban areas.
Q4
Is O2 worth considering?
O2 scores 88/100 in HP18 (89% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.