Hosepipe Ban London 2026: Can You Still Get Your Car Washed?

London has been under a hosepipe ban since late July, with restrictions on using mains-fed hosepipes for things like watering gardens, cleaning patios and washing private cars.

That doesn't mean cars can't be cleaned at all. Professional car washing and mobile valeting services are still permitted under the current Thames Water rules, and there are several ways you can legally wash your own car during the ban.

Here's what the current restrictions mean for London drivers.

What the ban stops you doing

Thames Water's Temporary Use Ban came into force at 00:01 on Thursday 23 July 2026 and covers its whole supply area, which is most of London along with the Thames Valley and much of the Home Counties.

For a driver, the restriction is straightforward. You can't use a mains-fed hosepipe to clean a private car, and Thames Water's guidance makes clear a jet washer counts as well. Breaching the restrictions is an offence, and the legal notice sets the maximum fine on conviction at £1,000.

A bucket is not affected, and neither is a watering can. Thames Water also tells customers they can make use of water collected in a water butt, so non-mains water you have gathered yourself sits outside the restriction.

Why it's been brought in

England has had an unusually dry year. Thames Water's region received only 40% of average rainfall over the spring, three official heatwaves followed, and rainfall stayed very low into the summer.

Demand went the other way. Thames Water reported usage around 7% above normal in London and about 10% above normal across the Thames Valley and Home Counties, amounting to an extra 100 million litres a day.

Nationally, the Environment Agency's drought report for 7 to 13 August put 71% of England by land area in drought, with more than 27 million people under water restrictions and eight companies operating temporary use bans.

When London last had a hosepipe ban

The last Thames Water ban covering London was in 2022. It came in on 24 August that year across London and the Thames Valley, and was lifted on 22 November once autumn rainfall had improved river and reservoir levels.

Thames Water also brought in restrictions in July 2025. That ban covered the OX, GL, SN, RG4, RG8 and RG9 postcodes across Swindon, Gloucestershire, Oxfordshire and part of Berkshire, and Thames Water confirmed at the time it would not affect London. This year's are the first Thames Water restrictions to reach the capital since 2022.

Is professional valeting still allowed?

Yes. Thames Water's rules permit a hosepipe to be used to clean a private motor vehicle where this is done as a service to customers in the course of a business, so hand car washes, and mobile valeters can continue to operate.

The follow-up question we're asked most is about your own outside tap. If you can't use it on your own car, how can a valeter turn up and use it?

Thames Water addresses that directly. Its hosepipe ban FAQs include a question on businesses using a customer's hosepipe, and valeting a car is one of the examples the company itself gives. The current rules distinguish between someone washing their own car and a business providing a professional cleaning service to a customer.

Our vans are also equipped with their own onboard water tanks, which we fill with purified water from specialist commercial filling stations before jobs. This means we can carry out many valets without needing to connect to the customer's water supply at all.

The Valeters continues to operate its mobile valeting service across London under the current restrictions, subject to the rules applying to the customer's water supplier.

On that last point, not every London property is supplied by Thames Water. Affinity Water covers parts of London, and its notice also allows a hosepipe to be used to clean private vehicles as a service to customers in the course of a business. If you're unsure which rules apply to you, check the supplier named on your bill.

We also understand that some people would rather not have their car washed at home at all while a ban is in place, even though professional valeting is permitted. A few customers have told us their hesitation isn't really about the rules, it's that a neighbour might see a hosepipe out and assume something's amiss. That's a fair thing to weigh up, and we'd never push anyone past it.

Washing your own car during the ban

A bucket and a watering can. A bucket does a better job than most people expect, particularly if you use two. One holds your shampoo solution, the other clean water for rinsing the wash mitt between panels, which stops you dragging grit back across the paint. Work panel by panel, and a watering can gives a steadier rinse than tipping a bucket over the roof.

Rinseless wash products. These are designed to clean a vehicle without a conventional hose rinse, using a relatively small amount of water, and used properly they're a very effective option during a ban. Follow the manufacturer's dilution instructions, and use plenty of clean microfibres or a suitable wash mitt so you aren't dragging dirt across the paint.

Waterless sprays, used with judgement. They work well on light dust and light contamination, and they're good for keeping a car presentable between proper washes. What they are not for is a heavily soiled vehicle. Wiping waterless product over grit drags that contamination across the lacquer and puts swirl marks in it, which costs far more to correct than the water you saved. If the car is visibly dirty or gritty, use water instead.

Collected rainwater. Water from a water butt sits outside the restriction, which makes it the most useful thing on this list if you already have one. Thames Water separately suggests reusing household water, such as water left over from rinsing or cooking vegetables, for watering plants.

A professional wash or valet. If you would rather not do it yourself, professional car cleaning remains permitted under the current rules. You can book a mobile valet with us across London, subject to whatever restrictions apply to your supplier.

This article reflects the restrictions in force on 14 August 2026. Water companies can tighten or lift them at short notice, so check your supplier's current guidance if you're reading this later in the year.