Patio Cleaning & Black Spot Lichen Removal in Thornaby
Patio cleaning across Thornaby: biocide treatment for black spot lichen, gentle cleaning for sandstone and limestone, plus sealing advice. Fully insured team.
Stockton-on-Tees Borough Council · TS17 · 26.8 miles south of our Washington base
A patio clean should leave you with stone that looks close to the day it was laid - even colour, no black spot lichen, joints free of moss, and no green slick across the edges where it stays damp. That's the standard we work to on every job in Thornaby.
Why does a patio in Thornaby go black in patches even when the rest of it looks fine? Nine times out of ten it's black spot lichen, not dirt, and it favours the shaded, damp corners of a garden - under trees, behind fences, on the north-facing side of the house.
Pressure washing alone can blast the surface clean for a few weeks, but it leaves the spores in the pores of the stone ready to come back within a season. We treat first, then clean, so the lichen actually goes rather than just getting knocked back.
Porcelain Paving
- Porcelain is dense, low-porosity and generally the most resilient of the common patio materials, so it can usually take a firmer clean without surface damage. Black spot lichen tends to sit more on top of porcelain than embedded within it, which makes treatment slightly more straightforward.
- The joints between porcelain slabs are still worth checking, though - growth often establishes in the pointing before it shows on the tile faces.
Modern Estate Patios
Newer builds around Thornaby more often have Indian sandstone, porcelain or block paving laid within the last decade or two, usually with better drainage falls than older properties. That means less standing water, but black spot lichen can still establish quickly in shaded corners near fences and conifers.
Because the stone is younger, sealing is often a realistic option here - a treated, cleaned and sealed modern patio can stay looking close to new for several seasons if the joints and surface are in good condition to start with.
Local, Straightforward, and Easy to Reach
Run by Trevor, directly contactable
Speak to the person doing the work on 07501 060609, not a call centre.
Fully insured
Full insurance cover for every job, whatever the size.
Biocide trained (2024)
Properly trained in the treatments needed to actually shift black spot lichen for good.
We look after you and your property
That's the standard we work to on every visit, not just a slogan.
Patio Cleaning in Thornaby — common questions
A pressure-only clean might cost less upfront, but if the lichen's back within a couple of months you've paid for a result that didn't last. Treating properly first means the clean actually holds, which works out better value over a couple of years.
Local to Thornaby and the Surrounding Area
From black spot lichen treatment to a full clean and sealing advice, we'll bring your patio in Thornaby back to an even, presentable finish - properly treated, not just pressure washed. Fully insured and biocide trained.
