Transform Your Home & Patio With Professional Pressure Washing

Your patio looked great when it was first laid. Your driveway was pristine. Your rendered walls were bright. But years of weathering, organic growth, and accumulated grime have a way of making everything look ten years older than it really is. Professional pressure washing is the fastest, most dramatic transformation you can make to your property's appearance — without a single drop of paint.

Before Legend Cleaning

What you're living with right now

Green algae and black mould spreading across paving
Slippery, hazardous patio and path surfaces
Deep-set oil and tyre stains on the driveway
Weathered, grey-looking decking or concrete
Moss forcing apart block paving joints
Dingy, stained exterior walls and fascias

After Legend Cleaning

What your property looks like restored

Bright, clean paving restored to original colour
Safe, non-slip surfaces for family and guests
Oil and staining lifted from driveways and forecourts
Decking and concrete returned to like-new appearance
Joints cleared and re-sanded where required
Fresh, clean exterior finish that adds instant kerb appeal

What surfaces can be professionally pressure washed?

Not every surface is cleaned the same way. Our team assesses each area before selecting the correct pressure, technique, and solution — preventing damage while delivering the best possible result.

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Patios & paving

Concrete, sandstone, slate, porcelain, block paving — all cleaned at surface-appropriate pressure settings.

Pressure wash

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Driveways

Block paving, tarmac, concrete, and resin driveways. Oil stains, tyre marks, and algae removed effectively.

Pressure wash

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Rendered & painted walls

Delicate surfaces that require low-pressure soft washing to remove algae and mould without causing damage.

Soft wash

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Brick & stone walls

External walls, boundary walls, and garden structures. Removes biological growth and atmospheric staining.

Pressure or soft

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Decking

Timber and composite decking cleaned carefully at low pressure to lift grime without raising wood grain.

Low pressure

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Paths & walkways

Garden paths, side passages, and public-facing walkways cleared of moss, algae, and built-up dirt.

Pressure wash

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Fences & garden walls

Timber, concrete panel, and brick fencing cleaned and restored. Bio-treatment available to slow regrowth.

Pressure or soft

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Gutters & fascias

Exterior soffit and fascia boards cleaned of algae, moss, and weather staining as part of a full exterior package.

Soft wash

Important: High-pressure washing on the wrong surface — soft sandstone, older render, or untreated timber — can cause permanent etching or surface erosion. Always use a professional who assesses the surface before starting. Legend Cleaning never uses one setting for everything.

Pressure washing vs. soft washing: which does your property need?

The terms are often used interchangeably, but they describe two very different techniques. Using the wrong one on the wrong surface is one of the most common causes of DIY pressure washing damage.

Feature	Pressure Washing	Soft Washing
Water pressure	High — 1,500 to 4,000+ PSI	Low — under 500 PSI
Best for	Concrete, brick, block paving, tarmac	Render, timber, roofing, fascias
Cleaning method	Physical force blasts away dirt	Chemical solution kills and dissolves growth
Algae / moss result	Removed immediately	Killed at root — slower to clear, longer-lasting
Risk to surface	High if wrong settings used	Very low when correctly applied
Regrowth speed	Faster — organism not killed	Slower — biocide prevents rapid return

Legend Cleaning uses both methods — and the right combination for each surface on your property. Our technicians assess everything before a single nozzle is pointed at your paving.

Our pressure washing process

Site assessment and surface surveyWe walk the areas to be cleaned and identify surface types, contamination levels, and any vulnerable features nearby — drains, plants, painted surfaces — that need protecting.
Pre-treatment applicationFor areas with heavy algae, moss, or lichen, we apply a biocidal pre-treatment that begins killing organic growth at the root before the wash begins — improving results and slowing future regrowth.
Pressure or soft washWe select the correct pressure, nozzle type, and technique for each surface. Hard surfaces get the power they need; delicate surfaces get the careful low-pressure treatment they require.
Detail work on edges and jointsEdges, corners, expansion joints, and tight spots that surface-sweep cleaning misses are all addressed carefully by hand where needed.
Re-sanding block paving (if required)Pressure washing clears out jointing sand. We re-sand block paving joints as part of the service to leave the surface stable and weed-resistant.
Clear-up and final inspectionAll debris and runoff is cleared from surrounding areas. We do a final walk-through with you and can recommend sealing treatments to extend the clean.

How often should you pressure wash your patio or driveway?

By surface type

Patios and block paving — once per year, ideally in spring, keeps organic growth from becoming embedded and maintains a safe, attractive surface.
Driveways — once a year for standard driveways; twice yearly for those used by multiple vehicles or in high-pollution areas where oil accumulation is faster.
Rendered or painted walls — a soft wash every 2–3 years is typically enough, with spot treatment in between if algae returns quickly.
Decking — once a year in spring, before the outdoor season, to remove winter mould and restore grip.
Paths and walkways — every 12–18 months, or more frequently if they become slippery or visibly green during winter.

Seasonal tip: Spring is the ideal time for pressure washing in most climates. Winter's wet, cold conditions accelerate algae and moss growth, and a spring clean removes it before it sets into joints or porous surfaces. Book early — our spring schedule fills up fast. Visit legend.cleaning to secure your slot.

Why DIY pressure washing often causes more harm than good

The wrong machine for the job

Consumer pressure washers from hardware stores typically operate at 1,400–2,000 PSI with a single nozzle setting. That's enough pressure to strip pointing from block paving, etch soft sandstone, or raise the grain on decking — but often not enough to properly clean heavily contaminated concrete. Professional machines are more powerful and more controlled.

No surface knowledge

The same pressure that's safe on a concrete driveway will permanently scar a sandstone patio or blow apart the mortar joints in a garden wall. Without knowing the specific tolerance of each surface material, DIY cleaning is a gamble.

Incomplete results

DIY washing removes what's visible on the surface but rarely kills the algae or moss at the root. Without biocidal treatment, regrowth appears within weeks — sometimes faster than before cleaning, because the surface has been opened up. Professional pre-treatment changes this cycle.

The drainage problem

Pressure washing generates large volumes of dirty runoff containing organic matter, oils, and sometimes biocides. Directing this into storm drains without care can breach local environmental regulations. Our team manages runoff responsibly on every job.

Frequently asked questions about pressure washing

How often should a patio be pressure washed?
Most patios benefit from a professional clean once a year, typically in spring. Patios in shaded areas with heavy organic growth may need attention twice a year to keep algae and moss from becoming embedded in the surface.
Can pressure washing damage my patio or driveway?
Yes, if the wrong pressure or technique is used. Soft stone, older block paving, and rendered surfaces are all vulnerable to damage from excessive pressure. Legend Cleaning assesses every surface before selecting equipment settings — we never use a one-size-fits-all approach.
What is the difference between pressure washing and soft washing?
Pressure washing uses high-force water to physically remove dirt — ideal for concrete, brick, and hard paving. Soft washing uses low pressure combined with specialist biocidal solutions to safely clean more delicate surfaces like render, timber, and roofing, where high pressure would cause damage. We offer both.
Will pressure washing remove algae, moss, and mould?
Yes — and when combined with a biocidal pre-treatment, the results last significantly longer. Pressure washing alone removes what's visible on the surface; biocidal treatment kills the organism at the root, which slows regrowth considerably compared to washing alone.
Is pressure washing safe for house exteriors and rendered walls?
Not at high pressure. Rendered, painted, and clad surfaces should be treated with soft washing — low pressure combined with appropriate cleaning solutions. Brick, stone, and unpainted concrete can typically handle pressure washing at correct settings. Our team identifies what each surface needs before starting.
How long does professional pressure washing take?
A standard patio or driveway takes 1–3 hours. Full home exterior cleans or larger properties may take a full day. We provide accurate time estimates with your free quote — visit legend.cleaning to book.