Decades of black carbon, soot and traffic pollution lifted from stone and brick using Thermatech superheated steam, with no harsh chemicals and very low pressure.
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Carbon and pollution staining is the black crust that builds up on stone and brick over decades of coal smoke and traffic fumes. We remove it with Thermatech, which uses superheated water at low pressure to break down carbon, dirt, algae and lichen. Heat does the hard work instead of force, so the face of the stone or brick is left intact.
That makes it our first choice for older and more delicate masonry: sandstone, limestone, soft handmade brick, and the listed and heritage buildings where a heavy-handed clean can do permanent damage.
It is also chemical-free, which matters next to gardens, watercourses and occupied buildings, and on surfaces where chemical residues could cause staining later on.
Tell us about the job and we'll come back to you fast. No obligation.
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Real footage from our jobs. Superheated steam at low pressure lifts decades of black staining and organic growth, while the stone and its carved detail stay intact.
The Park Hotel, Morecambe · Thermatech steam
Black staining lifted from sandstone, no chemicals
Watch our restoration work at the Park Hotel, Morecambe
Most buildings need more than one technique. We'll recommend the right combination.
Remove paint, rust, graffiti and grime from brick, stone, concrete and metal, back to a clean, sound surface.
Learn more →Bring stained, green or blackened render back to its original colour. Safe for monocouche, silicone and traditional render.
Learn more →High-pressure cleaning for driveways, patios, car parks and hard surfaces. Fast, thorough and long-lasting.
Learn more →Strip unwanted paint and coatings from brick and stone without damaging the substrate. Reveal the original stonework.
Learn more →A careful, conservation-led approach for listed and heritage buildings, protecting the character of your property.
Learn more →Homeowners, property managers and owners of listed buildings.
“Absolutely transformed our sandstone farmhouse. The render was black and we'd given up hope. Spartan brought it back to life in one day. Couldn't be happier.”
“Used them to clean the render and repoint our listed building. Professional from start to finish. The conservation officer was happy too, which says it all.”
“The driveway looks brand new. They were on time, tidy, and the price was fair. Will definitely use again for the back of the house.”
Yes. Tell us about the job and we'll arrange a free site survey and give you a detailed written quote, with no obligation to go ahead.
It depends on the material. Harder surfaces and metalwork suit sandblasting well, but softer and historic stone often doesn't. We test first and, where it's the better option, recommend a gentler method such as Thermatech steam cleaning.
Yes. We follow conservation guidelines and use the gentlest method that gets the result. Listed buildings often need listed building consent before exterior cleaning, so we'll explain our proposed method so you can discuss it with your conservation officer first.
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