How to clean patio slabs — with and without a pressure washer

A man in a blue shirt wityh a pressure washer cleaning patio slabs
How to clean patio slabs is all about using the right products (Image credit: Getty)

Heading into spring is the perfect time to look at how to clean patio slabs, and there are a few methods to choose from which will see the job done.

Getting rid of months, perhaps years, of accumulated grime can seem like a daunting task, especially if you live near a busy road where dirt is more likely to accumulate from passing traffic, or your patio is in an area where there might be high moss or algae growth. 

Jane Dobbs  headshot
Jane Dobbs

Responsible for leading the gardening team at Allan's Gardeners, a landscaping and garden maintenance business, patio cleaning is among the services they offer.

Thomas Goodman headshot
Thomas Goodman

Thomas Goodman has worked as a property and construction expert for MyJobQuote for six years and has worked in the construction industry for over twenty years. Thomas continues to work on building projects, while also providing expert construction and property advice to industry professionals and DIY enthusiasts.

Tom Clifford headshot
Tom Clifford

Tom has been in the garden landscaping business for over 13 years making him an expert in garden design, paving and maintenance. He is the director of Gardenstone Limited, which specialises in garden edging, patio paving, gravel and walling materials.

Molly Woodward-Moor headshot
Molly Woodward-Moor

Interior Designer, and creative director at Stone Superstore, online porcelain tile and natural stone tile business, Molly Woodward-Moor has a wealth of design and home development expertise alongside her First Class BA (Honours) degree in Interior Design. 

Teresa Conway
Deputy editor on Homebuilding & Renovating

Teresa was part of a team that launched Easy Gardens in 2018 and worked as the Editor on this magazine. She has extensive experience writing and editing content on gardens and landscaping on brands such as Homes & Gardens, Country Homes & Interiors and Living Etc magazine. She has developed close working relationships with top landscape architects and leading industry experts, and has been exposed to an array of rich content and expertise.

In 2020 Teresa bought her first home. She and her partner worked alongside architects and builders to transform the downstairs area of her two bedroom Victorian house in north London into a usable space for her family. Along the way she learned the stresses, woes and joys of home renovation, and is now looking to her next project, landscaping the back garden. 

With contributions from