Thames Water Hosepipe Ban Status 2026
Published: July 21, 2026 · Updated:
TUB Active: The Thames Water drinking-water supply area (London, the Thames Valley and the home counties) in force since 23 July 2026
- Status
- In force
- In force since
- 23 July 2026
- Area
- London + Thames Valley
- Maximum fine
- £1,000 maximum per violation
- Last verified
- 2026-08-03
Thames Water, England's largest water company, has declared a formal Temporary Use Ban for the customers it supplies with drinking water across London, the Thames Valley and the home counties. It is an escalation from the advisory we previously recorded, as the company moved to the next stage of its drought plan through July 2026. The sections below set out when it starts and who must comply, exactly who is covered, why Thames Water declared it, and what you can still do.
Old 2022 and 2025 stories about a Thames Water ban are circulating again. Ignore any report that says:
- London is not included, or that "London has avoided the ban"
- the ban starts on 22 July
- it affects 1.1 million customers
- it covers only the OX, GL and SN postcodes, plus RG4, RG8 and RG9
- the ban starts in August
- it affects 16 million or 29.4 million customers
- Yorkshire Water follows with a ban on 26 August
The real facts: The 2026 ban covers Thames Water's whole drinking-water supply area, including London, roughly 10.1 million customers, and has been in force since 00:01 on Thursday 23 July 2026. The 22 July start, the 1.1 million figure, the OX, GL and SN postcode list and the "London avoided" line all belong to the separate 2025 ban. There is no Yorkshire Water ban in 2026.
Coverage Area
Thames Water supplies drinking water across London, the Thames Valley and the home counties, including Oxfordshire, Berkshire, Wiltshire, Buckinghamshire, Surrey and parts of Gloucestershire. The Temporary Use Ban covers its whole water-supply area. Customers who receive only wastewater services from Thames Water, and customers supplied with water by another company, are NOT covered.
The ban covers the roughly 10.1 million customers Thames Water supplies with drinking water. This is not Thames Water's larger figure of around 16 million, which includes customers it serves for wastewater only; those customers are not affected by the ban.
Not sure of your supplier or whether your address is covered? Use the postcode checker. Official site: Thames Water Utilities Ltd.
Why Thames Water Declared This Restriction
This is a demand-and-supply ban rather than one caused by empty reservoirs. Thames Water reports demand around 10 per cent above normal across the Thames Valley and home counties and 7 per cent above normal in London, about 100 million extra litres a day, after the region received only 40 per cent of average rainfall this spring and experienced three heatwaves. The company had spent late June and July on a voluntary advisory, the escalation we had been tracking, before moving to a formal TUB as the next stage of its drought plan. Thames Water is England's largest water company and this is the single biggest TUB of summer 2026 by customers covered. The environmental regulator is the Environment Agency, which has recorded low reservoir and river levels across central and southern England. As with every UK company, the TUB itself is Thames Water's own Section 76 decision, not the Environment Agency's.
What is Banned, What is Allowed
Restricted uses: Across the Thames water-supply area, and Thames Water counts sprinklers and pressure washers as covered: watering a garden, lawn or allotment with a hosepipe; filling or topping up a paddling pool, swimming pool or hot tub; using a sprinkler or jet washer; and cleaning a vehicle, patio, path, driveway, wall, window or any other outdoor surface with a hosepipe.
Watering with a watering can or bucket is always allowed, as is water collected in a water butt or reused from the home. Thames Water lists exemptions including wastewater-only customers, health and safety needs, animal welfare (pets, livestock and fish), some business services and activities, watering food crops and certain newly planted trees, and Priority Services customers who cannot reasonably adjust their water use because of a disability or medical condition. Thames Water says the full exemptions are in its legal notice, available from 22 July 2026.
Exemptions differ between companies. Before relying on one, check Thames Water's own notice. For the newly laid turf rule, see our 28-day new turf exemption guide, and for the commercial rules our hosepipe ban rules for businesses.
What you can still do under the Thames Water ban
Each rule below is from Thames Water's own notice or FAQ. Other companies word these differently, so this list is Thames Water only.
Thames Water reports some households with outdoor space using around 50 per cent more water than normal.
- New lawns and planting. A hosepipe may be used on newly laid or sown lawns and new planting for the first 28 days from the day it was done, but ONLY where the laying, sowing or planting was completed by a business as a service. The hose must be used on the new planting only. After 28 days you must switch to a watering can. A lawn you laid yourself is not covered. (Thames Water FAQ, verified 2026-07-21)
- Filling a watering can. A short piece of hose, maximum 30cm, may be used to fill a watering can. (Thames Water FAQ, verified 2026-07-21)
- New trees. A hosepipe may be used on newly planted trees, applying only to trees planted within the last three years. Thames Water asks that a watering can or more efficient method is used where possible. (Thames Water FAQ, verified 2026-07-21)
- Ponds and fish. A hosepipe may be used to fill or maintain a pond where fish or other aquatic animals need it, including to oxygenate the water and keep fish healthy. (Thames Water FAQ, verified 2026-07-21)
- Food crops. A hosepipe may be used to water food crops at domestic premises or private allotments, only where it cannot reasonably be done with a watering can. (Thames Water FAQ, verified 2026-07-21)
- Business services. Services provided to customers by a business may still use a hose or jet washer, including window, wall, path, patio and other artificial-surface cleaning, and car washing services. This covers the trade, not the tradesperson's own garden. (Thames Water FAQ, verified 2026-07-21)
- Business vehicles. A business may hosepipe-clean only public service vehicles and goods vehicles. All other business vehicles are covered by the ban. A taxi or private hire vehicle may NOT be cleaned with a hosepipe: use a bucket and sponge. (Thames Water FAQ, verified 2026-07-21)
- Sports and recreation. Sports pitches may water only the area actively used for play, not the whole ground, and only where it is needed for health and safety. Parks and public gardens are otherwise restricted, with exemptions for health and safety and for National Plant Collections. (Thames Water FAQ, verified 2026-07-21)
- People with additional needs. There are exemptions for customers with severe mobility issues and serious medical conditions or disabilities. Thames Water directs customers to its legal notice for the full list. (Thames Water FAQ, verified 2026-07-21)
Fines and Reporting
Maximum fine: £1,000 maximum per violation.
Breaching a Temporary Use Ban is an offence under Section 76 of the Water Industry Act 1991, and a court may impose a fine of up to £1,000. Thames Water says its full legal notice, with all exemptions, is available from 22 July 2026.
Reporting channel: Thames Water customer services.
UK Lawn Care During Thames Water Restrictions
Once the ban is in force you can still keep a lawn alive with a watering can in the early morning, and Thames Water explicitly still allows buckets and water butts. An established lawn does not need it in any case: UK lawns are cool-season grasses that go dormant and brown in a heatwave to protect their crowns, then green up within weeks of autumn rain. Raise the mower to 50 to 60 millimetres, stop feeding, and leave the clippings. A water butt fitted now pays for itself the moment the next ban lands.
See our keep your lawn alive under a hosepipe ban guide, and overseeding during a hosepipe ban for the September window.
Frequently Asked Questions
Is there a hosepipe ban in London or the Thames Valley right now?
Yes. Thames Water announced a formal Temporary Use Ban on Tuesday 21 July 2026, in force from 00:01 on Thursday 23 July 2026, and is asking customers to follow the restrictions now, ahead of the start date. It covers the roughly 10.1 million customers Thames Water supplies with drinking water across London, the Thames Valley and the home counties.
When does the Thames Water hosepipe ban start?
At 00:01 on Thursday 23 July 2026. Thames Water announced it on Tuesday 21 July and is urging customers to comply straight away rather than waiting for the start date. Thames Water says its full legal notice is available from 22 July 2026.
How many customers does the Thames Water ban cover, 10 million or 16 million?
Around 10.1 million, the number Thames Water supplies with drinking water. The larger figure of roughly 16 million that appears in some headlines includes customers Thames Water serves for wastewater only, and those customers are not affected by the hosepipe ban. If another company supplies your drinking water, this ban does not apply to you even if Thames Water handles your wastewater.
Does the Thames Water ban cover its whole area or just some postcodes?
Its whole water-supply area. Thames Water's 2025 bans were limited to specific postcode zones such as Swindon, Gloucestershire and Oxfordshire, but the 2026 ban applies to everyone it supplies with drinking water across London, the Thames Valley and the home counties. Wastewater-only customers, and anyone supplied with water by a different company, are excluded.
Why has Thames Water declared a ban?
Because of demand rather than empty reservoirs. Thames Water reports water use around 10 per cent above normal across the Thames Valley and home counties and 7 per cent above normal in London, about 100 million extra litres a day, after the region received only 40 per cent of average rainfall this spring and went through three heatwaves. The company had asked for voluntary restraint through June and July and has now moved to the next stage of its drought plan.
What is the fine for breaching the Thames Water hosepipe ban?
Up to £1,000, imposed by a court under Section 76 of the Water Industry Act 1991. It applies once the ban is in force, from 00:01 on Thursday 23 July 2026.
What can I still do under the Thames Water ban?
Use a watering can or a bucket, and use water collected in a water butt or reused from the home. Thames Water also lists exemptions including health and safety needs, animal welfare, watering food crops and certain newly planted trees, some business activities, and Priority Services customers who cannot reasonably adjust their water use for medical reasons. The full exemptions are in Thames Water's legal notice, available from 22 July 2026.
Is Thames Water banning hosepipes from August, and is Yorkshire following on 26 August?
No. Those claims come from recycled 2022 and 2025 coverage. The real Thames Water ban is in force from 00:01 on Thursday 23 July 2026, per Thames Water's own site. There is no Yorkshire Water hosepipe ban in 2026: Yorkshire's own status page reports no restrictions, and the 26 August date belongs to an older story. Ignore any Thames or Yorkshire ban with an August start date or a 29.4 million figure.
Is London included in the Thames Water hosepipe ban?
Yes. The 2026 ban covers Thames Water's whole drinking-water supply area, including London, per thameswater.co.uk. Reports saying London avoided the ban are describing the 2025 ban, which started on Tuesday 22 July 2025, covered around 1.1 million customers and was limited to the OX, GL and SN postcode areas plus RG4, RG8 and RG9. That was a separate, postcode-scoped restriction. If Thames Water supplies your drinking water anywhere in London, the 2026 ban applies to you; only customers it serves for wastewater only, or who get their water from another company, are outside it.
Can I water a new lawn during the Thames Water ban?
Only in a narrow case. Thames Water's FAQ allows a hosepipe on newly laid or sown lawns and new planting for the first 28 days from the day it was done, but only where the laying, sowing or planting was carried out by a business as a service, and the hose may be used on the new planting only. After 28 days you must switch to a watering can. A lawn you laid yourself is not covered by this exemption, though you can still water it with a can, or with rainwater from a water butt through a hosepipe, at any time. A short hose up to 30cm may be used to fill a watering can.
Can I clean my taxi or business vehicle with a hosepipe under the Thames ban?
A taxi or private hire vehicle may not be cleaned with a hosepipe under the Thames Water ban: use a bucket and sponge. Thames Water exempts only public service vehicles and goods vehicles from vehicle-cleaning restrictions; all other business vehicles are covered. This is stricter than South East Water, which does treat taxis as commercial vehicles you may clean as a business service, which is exactly why you should check your own supplier's rule rather than assume. Car washing offered as a service to customers can still use a hose.
Counties Thames Water Serves
County guides exist for the areas listed below. For any other part of the Thames Water area, use the postcode checker rather than a county page:
Not sure your area is covered? Is there a hosepipe ban in my area? or use the postcode checker.
← Back to UK water restrictions overview
Source of record: Thames Water's own status page, last checked 2026-08-03. We do not publish a hosepipe ban on the strength of a news report. Updates posted as water companies declare, modify, or lift restrictions.