We remove algae, pollution, efflorescence and graffiti from brick, render, natural stone and cladding. We match the pressure to the material, because spraying too hard opens the joints and damages the stone.
On the shaded side moisture lingers, and that is where algae and moss take hold. Left alone it eats into the pointing. On delicate facades we use low pressure and softwash rather than force, so the stone stays intact.
Pressure matched to brick, render, natural stone or cladding
Softwash on delicate material, not high pressure on everything
Algae, moss, efflorescence, pollution and graffiti
Accessible facades up to roughly the fourth floor


Three steps, no endless calls.
Fill in the form in 2 minutes. Questions? Message us on WhatsApp.
We email you your quote within 2 hours, a fixed price with everything included.
An insured team leaves your space spotless. You just enjoy the result.
Grime and efflorescence off without opening the joints.
Regulated pressure that leaves the finish intact.
Low pressure and a product that does not open the pores.
Anti-graffiti product and hot water, on business premises too.
Treatment on the shaded side, with aftercare against regrowth.
The dirtiest part of a building and the first thing people see.
Facade cleaning in Leiden on a corner house usually means the side wall is the biggest job. That long, often windowless wall catches less sun, holds moisture longer and so turns green or black sooner than the front. We clean the side wall, the front and the corner between them in one go, so no colour difference is left behind.
On a side wall the growth is rarely even: thick at the bottom and along the downpipe, thinner in the middle. So we leave the product longer on the worst areas and rinse at low pressure. The corner comes last, with both elevations in view at once, so from the street you see no edge where one wall stops and the other begins.
One insured and vetted professional takes on every elevation of your corner house, and comes back for the next visit too. We bring our own equipment, hoses and products. The products are eco-friendly and safe for your pets and the children in the garden. If a spot has not come up properly afterwards, tell us within 48 hours and we put it right.
Real people, verified reviews.
“very quick and professional results ! well done”
“Clean, detailed, and professional service from Maiquellito and Anna 👍”
“Great service by Anna & Maiquellito”
If something is not right, tell us within 48 hours and we re-clean it free.
Fill in the form and we email you your quote within 2 hours, everything included and no obligation.