How Much to Charge for a Pressure Washing Job in 2026

What a pressure washing quote needs to include

Cover these ten things and there's nothing left to renegotiate once the van's on the drive:

1. 1Which surfaces, and exactly how much of each, in square metres — driveway, patio, decking, walls, roof — not a vague "outside area".
2. 2Current condition: light seasonal dirt, or heavy moss, algae and staining that may need a pre-treatment or a second pass.
3. 3Method, named on the quote: cold-water pressure washing, hot-water, or a chemical soft-wash treatment for render, roofs or delicate surfaces.
4. 4Any chemical product used, backed by a COSHH assessment and Safety Data Sheet kept on file, not just mentioned verbally.
5. 5How wastewater will be handled — run-off to a soak-away or lawn, collected and removed, or, for a commercial site, discharged to a foul sewer under a trade effluent consent.
6. 6Water source: a mains tap on site, or your own tank or bowser if there's no outside access.
7. 7Access requirements and any scaffolding or platform hire needed for roof or multi-storey wall work.
8. 8Your public liability insurance cover level, stated plainly rather than left for the client to ask about.
9. 9Confirmation that the job is carried out to the WJA Black Code (or an equivalent recognised code of practice) for the pressure level and equipment in use.
10. 10A re-sanding or joint-sealing add-on for block paving, priced as its own line rather than assumed to be included.

Typical UK pressure washing prices in 2026

Prices vary with surface, condition and access, but these are a fair starting point for a job in reasonable, un-overgrown condition:

• Patio, up to 30m²: £90–£250. Larger patios from 45m² upward: £250–£400.
• Driveway, up to 60m²: £100–£250. Larger driveways from 90m² upward: £225–£350.
• Decking, 10–20m²: £80–£280 — timber condition and whether it's being resealed afterwards moves this a lot.
• Paths and walkways, around 20m²: £100–£180.
• Exterior walls, per wall: £200–£400.
• Gutters and fascia: £75–£200, priced per property rather than per metre.
• Roof washing: £350–£450 (terraced), £450–£600 (semi-detached), £650–£900 (detached), and £900–£1,800+ where scaffolding is needed for a large or multi-storey roof.
• By area, a rough guide is £2.50–£5.50/m² for a driveway, £5–£9/m² for a patio, £8–£14/m² for decking, £6–£12/m² for walls, and £8–£15/m² for a pressure-washed roof (£10–£20/m² if it's a chemical soft-wash instead).
• A day rate of roughly £400–£800, or an hourly rate of £40–£80, is typical — London runs £70–£90 an hour, while cities like Liverpool, Edinburgh and Glasgow sit nearer £50–£65.

What actually moves the price

Square metreage is only the starting point. Heavy moss, algae or ingrained staining often means a pre-treatment or a second pass, not just a longer single wash — price it as extra time, not a bigger version of the same job. Intricate block paving, tight corners and awkward edges slow the work down compared with a flat, open slab. Eco or specialist cleaning solutions and biocide treatments add a real product cost. Scaffolding or a platform for roof and high-wall work is a separate hire cost on top of the labour. And a job twenty minutes outside your usual patch costs more in travel than one that fills a gap in today's round — price that honestly rather than absorbing it.

The safety code that just changed for the whole industry

In August 2026 the Water Jetting Association launched the WJA Black Code, folding its three previous codes of practice — including the Purple Code, written specifically for pressure washers in 2024 — into one unified, HSE-endorsed standard covering every pressure level from a domestic electric washer to industrial ultra-high-pressure jetting. It sets out team organisation and duties, PPE, hose assembly inspection and testing, frost precautions and safe operating technique, and the HSE has said it will treat it as industry best practice when investigating a safety lapse. The WJA calls it the biggest step forward in standardisation the industry has seen in decades.

It matters even if you only ever do driveways and patios. Fluid injection injuries — where a high-pressure jet punctures skin and forces water or chemical deep into the tissue — aren't limited to industrial-scale jetting, and they can be serious or life-threatening even from equipment that looks harmless on a driveway. Naming the Black Code (or an equivalent recognised standard) on your terms and conditions costs nothing and is a genuine, checkable sign to an insurer or a nervous client that you're not just winging it with a machine from a shed. None of this is legal advice — check the WJA's own guidance directly, particularly if you're investing in a commercial-grade unit or taking on staff.

Insurance, permits and the chemicals question

There's no single government-issued pressure washing licence, but that doesn't mean no paperwork applies. Working on a public highway or pavement, discharging wastewater to a sewer, drawing water from a non-mains source, or working on a listed building or in a conservation area can all need separate permission from the council or water company — check before you quote a job with any of these factors, not after. Public liability cover of £5 million is a common baseline, with many commercial and some domestic clients now asking for £10 million, and employer's liability of at least £5 million is a legal requirement the moment you take on staff.

Any chemical treatment — moss and algae biocides, sodium hypochlorite for roof or render soft-washing — falls under COSHH: assess the hazard, keep a Safety Data Sheet on file for every product, provide the right PPE, and store chemicals securely. A proper assessment typically costs in the region of £50–£200 per product to put together — a small, one-off cost worth factoring into your rates rather than skipping until something goes wrong.

A worked example

A combined driveway and patio job at a semi-detached house, with heavy moss on the block paving and no outside tap on site:

Wastewater channelled to an existing soak-away on the property, not a public surface-water drain. Carried out to the WJA Black Code for the equipment used, with £5m public liability cover stated on the quote. Payment taken by card on completion.

Quoting mistakes pressure washing businesses make

• Pricing by the hour with no fixed scope. An hourly rate with no agreed square metreage or finish standard leaves both sides guessing when the job's actually done. Scope the m² and the condition up front, quote a fixed price for it, and treat anything beyond that (a second pass for stubborn algae, an area the client adds on the day) as a named extra.
• Treating wastewater disposal as free. Run-off from a driveway wash carries detergent, moss treatment and years of oil and grime with it. Channelling it onto a lawn or soak-away is usually fine; letting it run straight into a road gulley or surface-water drain can breach environmental rules and is exactly the kind of thing a council or an unhappy neighbour reports. Price the extra time this takes properly instead of assuming it's free.
• Skipping the COSHH paperwork on chemical treatments. Sodium hypochlorite and other biocide treatments used for moss, algae and roof soft-washing need a COSHH assessment and Safety Data Sheet on file, not just "I've used it for years". It typically costs little to do properly — build it in once per product, not as an afterthought after something goes wrong.
• No re-sanding line on block paving jobs. A pressure washer blasts jointing sand out of block paving as a matter of course. Leave it out of the quote and you either eat the cost of putting it right or hand the client a driveway that's weeding through within a few weeks — neither is a good look.
• Quoting a roof wash like a bigger driveway. Height, access, scaffolding and soft-wash chemical dwell time make a roof job a genuinely different job, not a scaled-up patio. Price it from its own figures, not by multiplying a ground-level rate by however many storeys are involved.

The fastest way to do all of this

A driveway-and-patio combo job, a re-sanding add-on, a biocide pre-treatment and a water-supply surcharge is five separate line items before VAT even comes into it — easy to lose track of when you're quoting from the van between jobs.

This is what QuoteRocket is for. Describe the job in plain English — "55m² block paving driveway, heavy moss, hot wash, re-sand after, 25m² patio, no outside tap" — and it turns that into a branded, itemised PDF quote in under a minute. Your customer accepts it with one tap on their phone, and an accepted quote becomes an invoice in one click, so nothing gets forgotten between the quote and getting paid.

Whichever way you produce the quote, the principle holds: scope the surfaces in m², price chemicals and wastewater disposal as their own lines, state your insurance and code-of-practice compliance plainly, and never fold a re-sanding job into a bare wash price.

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