Remove built-up contamination
Dirt, moss, algae and suitable organic growth treated according to the surface.
Southampton · Bournemouth · Hampshire · Nearby Dorset
Moss, algae, black spotting, weathering and built-up dirt can leave a patio looking tired and difficult to maintain. Black Haven assesses the material and condition first, then uses the cleaning method and treatment appropriate to the surface.
Patio cleaning
From £5/m²
£150 minimum job charge
Final guide pricing depends on size, material, condition and selected treatment.
Choose Patio or terrace in the Exterior Care estimate builder.

Surface assessment · Condition-led treatment · Professional equipment · Final inspection
Dirt, moss, algae and suitable organic growth treated according to the surface.
Improve colour and presentation without pretending every historic mark will disappear.
Further treatment or sealing considered only where it provides a genuine benefit.
Condition first

Built-up dirt and weather exposure can leave paving dull, uneven-looking and harder to maintain.
Green biological growth affects presentation and can make suitable areas slippery when wet.
Established biological marking can sit deeper than loose dirt and need targeted treatment rather than pressure alone.
Rust, grease, plant-pot marks and other stains are condition-dependent. Some deeply absorbed or historic staining may improve without disappearing completely.
Material-led cleaning
Stone type, porosity, age, joints and previous treatments shape the correct method. Sandstone patio cleaning therefore starts with assessment.
Dense porcelain often needs different chemistry and agitation from porous stone. High pressure alone is not the answer.
Suitable concrete patios can be professionally cleaned, with the process adapted to condition, finish and age.
Block-paved patios can be assessed too. If cleaning exposes depleted jointing sand, re-sanding may be recommended where genuinely appropriate.

Surface-led method
Professional patio cleaning is not simply using the highest available pressure. Material, porosity, age, joints, previous treatments and surrounding areas shape the safest effective approach. Patio pressure washing or patio jet washing may contribute, but no single method suits every surface.
Optional aftercare
Sealing is optional, not automatic. Material, porosity, surface condition, previous coatings, moisture, weather and intended appearance all affect suitability.
From +£7/m² where suitable
The Exterior Care estimate builder may flag sealing for review where the material or condition means suitability must be confirmed.
Transparent pricing
The Exterior Care builder uses material, condition, treatment and approximate measurements to produce a guide estimate. Photographs help confirm the scope before work is agreed.
Practical details
Professional exterior work includes controlled rinse-down, checking accessible surrounding areas affected by the work and leaving the agreed area orderly. Please provide reasonable access, an exterior water supply where required, equipment space, accurate photographs or measurements when requested, and information about delicate surrounding items or existing damage.
Service area
Based in Chandler’s Ford and serving Southampton, Eastleigh, Winchester, Basingstoke, Romsey, the New Forest, Bournemouth, Christchurch and surrounding areas across Hampshire and nearby Dorset.
Travel, access, drainage, water supply and the suitability of the working area are confirmed before the job.
Before booking
Black Haven patio cleaning starts from £5 per square metre, subject to the £150 minimum job charge. Final guide pricing depends on size, material, condition and any selected further treatment.
No. Pressure washing may form part of the process, but the method depends on material, age, porosity, joint condition and previous treatments.
Yes, where the stone and its condition are suitable. The method is adapted to the stone type, porosity, joints and previous treatments.
Yes, where suitable. Porcelain is dense and commonly requires a different approach from porous natural stone rather than simply more pressure.
They can often be substantially improved, but complete removal cannot be promised before the surface and severity are assessed.
Suitable moss, algae and biological growth can be treated and cleaned. Established growth may need more than one process or treatment stage.
Not always. Sealing is optional and depends on the material, condition, previous treatments and whether it provides a worthwhile benefit.
Start with the patio
Build a guide estimate from the patio size, material, visible condition and treatment you are considering. Black Haven reviews the job before the final scope is agreed.