Brick Cleaning Costs UK — What to Charge to Clean Brickwork in 2026

What Brick Cleaning Costs in 2026

Most brick cleaning is priced per square metre, with whole-house quotes built up from the measured facade area plus access. As a working range, expect £8–£25 per m² depending on the method you use, how heavily contaminated the brick is, and how difficult the access is. Light mortar-smear removal on a ground-floor new build sits at the bottom; specialist superheated steam or abrasive cleaning of a heavily soiled heritage facade sits at the top.

• Terraced house facade clean: £400–£900
• Semi-detached facade clean: £700–£1,500
• Detached facade clean: £1,200–£3,000+
• Per m² (all methods): £8–£25/m²

New-build mortar-stain cleans are often priced per plot or per elevation rather than per m², because developers want a fixed price per house type across a site. Whatever the property, remember that access drives a large part of the total — on anything above single storey, scaffold or a powered access platform can add as much as the cleaning itself.

Quick Reference: Brick Cleaning Prices UK 2026

Cleaning Methods and When to Use Each

The method you choose is the single biggest decision on a brick cleaning job. Pick the wrong one and you can permanently scar a facade — etched, blotchy or blown brick faces cannot be undone. Here's when each method earns its place.

Low-Pressure Superheated Steam (DOFF / ThermaTech)

The DOFF system, and ThermaTech equivalents, clean using water heated to around 150°C delivered at low pressure. The heat does the work, not the force — so you remove algae, soot, biological growth and many surface stains without blasting the brick face. Because the pressure is low and the surface dries quickly, this is the go-to method for listed buildings, churches and soft historic brick where conservation officers are involved.

It is slower and more expensive per m² than chemical cleaning, but it is the method least likely to damage the substrate. Expect £12–£25/m², toward the top for heavily soiled or detailed elevations.

TORC and JOS Swirling-Abrasive Systems

TORC and JOS use a gentle swirling vortex of low air pressure, a fine inert abrasive and a small amount of water to lift surface contamination. The swirl spreads the energy so no single point is hammered, which makes these systems suitable for soft, friable and historic brick and stone where a straight grit blast would destroy the surface. They're excellent for carbon sulphation crusts and stubborn staining on heritage facades.

Skilled operation matters — the wrong nozzle distance or abrasive grade can still erode a soft face. Price at £15–£25/m², reflecting the equipment, the consumable abrasive and the skill involved.

Chemical Brick Acid (Hydrochloric-Based)

Brick acid — a dilute hydrochloric acid solution — is the standard tool for removing mortar smears, cement splashes and lime efflorescence, especially on new-build work. It dissolves the cementitious residue chemically, which is far faster than mechanical removal on a large new estate. This is usually the cheapest method at £8–£15/m², but it carries the most risk if used carelessly.

The rules are non-negotiable: never use acid on certain brick types (many yellow stocks, sand-faced and some buff bricks will stain or burn permanently), always pre-wet the brickwork thoroughly so the acid sits on the surface rather than being drawn into a dry brick, neutralise and rinse fully afterwards, and use full PPE — acid-resistant gloves, eye protection and a face shield. Always test a discreet patch first and wait to see how it reacts before committing to a whole elevation.

Poulticing for Deep Staining

Some stains — oil, iron/rust runs, organic tannin marks — sit deep in the brick and won't shift with surface cleaning. A poultice is an absorbent paste loaded with the appropriate solvent or chemical, applied over the stain and left to draw the contamination out as it dries. It is labour-intensive and usually priced by the job rather than per m², but it is often the only thing that works on isolated deep stains.

Graffiti and Paint Removal

Graffiti and paint removal is a specialist sub-job priced at £20–£40/m² because the right method depends entirely on the paint and the substrate. Options include solvent-based graffiti removers, low-pressure steam, soda blasting and TORC. On porous or soft brick the paint has often soaked in, so complete removal may be impossible without damaging the face — set that expectation in writing. Where graffiti is recurring, offer an anti-graffiti sacrificial coating as a follow-on so the next tag washes off cleanly.

What Drives the Price

Two jobs of the same square-metre size can be worth very different money. These are the factors that move a quote up or down:

• Method: Chemical acid is cheapest; superheated steam and swirling-abrasive systems cost more per m² because of equipment, consumables and skill.
• Level of soiling: A light algae film cleans quickly; ingrained soot, a sulphation crust or thick paint needs multiple passes.
• Brick type and softness: Hard modern engineering or interlocking brick tolerates aggressive methods; soft heritage, handmade or lime-bedded brick demands the gentlest approach — and the gentlest methods cost more.
• Access and scaffolding: Single-storey work off a low tower is cheap; a three-storey terrace front needs scaffold or a powered platform, often adding £800–£2,500.
• Surface area: Larger areas give economies of scale on labour, but also mean more consumables and longer access hire.
• Bundled work: Repointing, sealing or applying a water-repellent after cleaning are profitable add-ons but change the timeline and the quote.

What's Included in a Brick Cleaning Quote

A professional brick cleaning quote should make clear what the customer is paying for. As standard, a facade clean typically includes:

• Survey and a small test patch to confirm the right method and result
• Masking and protection of windows, frames, doors, paths, planting and any water features
• The clean itself by the agreed method, including pre-wetting and neutralising where chemicals are used
• A full rinse-down and controlled management of waste water
• Site clear-up and a final inspection with the customer

Things to quote separately so they don't eat your margin: access (scaffold or MEWP), repointing of any open or perished joints found once the dirt is off, and any sealing or water-repellent treatment.

Worked Example: Semi-Detached Facade Clean

A typical two-storey semi-detached front and side facade, soiled with algae and general atmospheric dirt, works out at roughly 90m² of brickwork. The brick is a standard 1970s machine-made facing brick, so a low-pressure steam clean is appropriate and safe.

• Cleaning: 90m² at £14/m² = £1,260
• Access (scaffold tower / light system, 2 days): £500
• Masking, protection and consumables: £120
• Indicative total: £1,880

That sits at the top of the semi-detached range, which is correct for a full two-elevation clean with proper access. Strip the side elevation out, or work off the customer's own access at ground-floor height, and the same property could come in around £900–£1,100. The variable is almost always the access and the area, not the cleaning rate.

Practical Pitfalls to Avoid

Brick cleaning goes wrong in predictable ways. These are the ones that cost operators money, customers and reputations:

• Acid damage: Hydrochloric brick acid can burn, etch and permanently stain the wrong brick — yellow staining and a dissolved, sandy surface are common. Always test a patch, always pre-wet, always neutralise and rinse.
• Skipping the test patch: Every facade is different. A discreet trial area tells you whether the method works and whether the brick reacts — before you've committed to a whole house.
• No protection: Chemicals and abrasive overspray ruin window frames, paintwork, paving and plants. Mask thoroughly and cover or move anything below the work.
• COSHH and waste water: You need a COSHH assessment for every chemical you use, and runoff must not enter drains or watercourses untreated. Acidic and biocidal runoff is an environmental offence — capture, neutralise or divert it.
• Treating soft historic brick like modern brick: Soft, lime-bedded or handmade heritage brick needs the gentlest method available — DOFF steam or TORC, never high-pressure blasting or strong acid. Getting this wrong is irreversible.
• Saturating the wall: Forcing too much water into the brick can drive damp inside and trigger fresh efflorescence as salts migrate out. Use the minimum water the method needs and let the wall dry.

Sealing and Repointing as Upsells

Once a wall is clean, two profitable follow-ons become obvious. The first is repointing: clean brick reveals every perished, hollow or cracked mortar joint, and the customer can see it for themselves. You're already set up with access, so quoting repointing as a separate line is an easy, high-value add.

The second is a breathable water-repellent or facade sealer. Applied to sound, dry, clean brick it slows re-soiling, reduces water absorption and helps keep algae at bay. Be careful to use a vapour-permeable product on older solid walls — a film-forming sealer that traps moisture can do more harm than good. Price sealing per m² on top of the clean and be clear about what it does and does not promise.