Which electricity DNO covers postcode TW4?

TW4 (Hounslow) is distributed by UK Power Networks (London - LPN). For any street power cut call 105 free 24/7.

Who supplies mains water and gas in TW4?

Water: Thames Water; Gas network: SGN Southern.

TW4 District Hounslow (Greater London)

Live power cut, broadband, mobile 5G, water & gas network telemetry for UK postcode district TW4.

All / Power Broadband Mobile Water Gas

Electricity DNO (105)

UK Power Networks (London - LPN)

Emergency: 105 / 105 / 0800 316 3105

Water & Sewerage Company

Thames Water

Support: 0800 316 9800

Gas Network (0800 111 999)

SGN Southern

Smell gas? 0800 111 999

Provider	Matched District / Area	Status / Affected	ETR / Updated
UK Power Networks (London - LPN)	E4 Walthamstow (Postcode E4) — UKPN INCD-647162-Z	2 properties	15 Nov 2026 at 4:49 am GMT
UK Power Networks (London - LPN)	EC1A Islington (Postcode EC1A) — UKPN MULT-aa61fddb-edcb-4a19-8bc6-f62a1691c…	DNO Active Fault	15 Nov 2026 at 1:49 am GMT
UK Power Networks (London - LPN)	EC1A Islington (Postcode EC1A) — UKPN MULT-65e79ee2-bf8d-48f0-9f5d-d91a8c07e…	DNO Active Fault	15 Nov 2026 at 1:49 am GMT
UK Power Networks (London - LPN)	NW10 Brent (Postcode NW10) — UKPN MULT-bfa2646f-9a3f-419b-931e-357eb85a2fce	DNO Active Fault	15 Nov 2026 at 1:49 am GMT
UK Power Networks (South Eastern - SPN)	BR7 Bromley (Postcode BR7) — UKPN MULT-ee99c2e3-2d59-4314-9f1b-6227870398b4	DNO Active Fault	15 Nov 2026 at 1:49 am GMT

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