Patio Cleaning, Sealing and Re-Pointing Advice in Tynemouth
Patio cleaning and lichen removal across Tynemouth and the surrounding area. Sealing, re-pointing advice and decking add-ons available on request always.



Black spot lichen and green algae spread fast across Indian sandstone, limestone and concrete flags, and once it takes hold a garden hose won't shift it. The dark speckling that starts in the shady corner of a patio in Tynemouth creeps outward every wet spell, and by the time it reaches the seating area most of it is bonded into the stone rather than sitting on top.
Call Trevor on 07501 060609 for a straightforward quote. We're fully insured, biocide trained, and happy to give honest advice on re-pointing or sealing even if it's not something we end up doing ourselves.
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 Tynemouth.
Patio Cleaning near Tynemouth
The Wider Area We Cover
Beyond Tynemouth itself, our regular coverage extends out to Marsden, Primrose, Cleadon and Monkton and similar towns a little further afield, all within a reasonable drive of our Washington base.
If you're coordinating patio cleaning across more than one property in this wider area - family homes, rental properties, or a small portfolio - we're happy to quote for several visits together.
Typical Patio Cleaning Costs
For larger or irregular areas it's often easier to think per square metre rather than a flat fee. Porous stone needing biocide treatment generally sits toward the higher end, while denser materials in good condition sit lower.
Parking and Equipment on the Day
We bring everything needed in the van - pressure washers, steam equipment and biocide treatments - so there's usually no need for you to provide anything beyond reasonable parking access near the property.
If on-street parking is limited, a quick heads-up beforehand means we can plan around permit times or find suitable space rather than losing time on the day itself.
Former Colliery Terrace Housing
In the ex-colliery terraces around Tynemouth, rear yards were often flagged rather than turfed, and many still have the original stone or early concrete underfoot. Coal dust staining from decades past can sit under more recent algae growth, so a clean sometimes reveals old ingrained marks that a wash alone won't lift.
Narrow yards and high boundary walls typical of this housing keep these areas shaded and slow to dry, which is exactly the environment black spot lichen prefers - it's a genuine repeat-treatment area rather than a once-and-done job.
Homeowners
Family Gardens and Everyday Use
If your patio is where the kids play, the barbecue goes and Sunday mornings happen, black spot lichen and slippery algae aren't just an eyesore - they're a genuine trip hazard underfoot. We treat and clean with that in mind, getting the surface properly grippy again, not just visually cleaner.
We work around furniture, planters and washing lines rather than asking you to clear the whole garden, and we're happy to talk through sealing at the end of the visit if you want the result to last into next year.
Pressure Washing vs Our Treat-First Approach
A standard pressure wash blasts dirt and growth off the top of the stone using force alone. It's fast, and it looks dramatic, but on lichen-affected sandstone or limestone it can drive spores into the pores of the stone and damage soft pointing at the same time.
Our approach treats the biological growth chemically first, so it's actually dead before any pressure touches the surface. We then use the lowest pressure that gets the job done - often steam or a soft wash - which is gentler on the stone and the joints, and the clean lasts considerably longer as a result.
Clean-and-Seal Process, from Treatment to Protection
- 1
Assess suitability for sealing
We check the stone and pointing are in good enough condition to seal - sealing over failing joints just traps the problem.
- 2
Biocide treatment
Lichen, moss and algae are treated and left to work before any cleaning begins.
- 3
Deep clean
Steam or pressure cleaning removes dead growth and ingrained dirt, matched to the material.
- 4
Full dry-out period
The patio needs to dry out properly before sealing - we won't seal a damp surface as it traps moisture underneath.
- 5
Sealant application
A suitable sealer is applied evenly across the surface to protect against future staining and slow new growth.
- 6
Cure and handover
We explain the curing time before the patio can be walked on or have furniture put back, and leave care advice for the months ahead.
Indian Sandstone
- Indian sandstone is porous and slightly variable in hardness between batches, which means it can hold onto black spot lichen and algae stains more readily than denser stone. It responds well to biocide treatment followed by gentle steam or low-pressure cleaning rather than high pressure, which can strip the natural texture off the surface.
- Sealing is often worthwhile on sandstone once it's clean and dry, as it helps resist future staining and makes the next clean considerably easier.
Patio Cleaning in Tynemouth — common questions
It's a bit slower than a straight pressure wash, but it's the difference between a patio that looks clean for a fortnight and one that stays that way.
We're upfront about pricing from the start, so there's no surprise cost for doing it right.
Call 07501 060609 to talk through your patio and get a straightforward quote.
Get Your Patio Looking Its Best Again
Send a couple of photos and we'll give you an honest read on whether it's lichen, algae or something else, and a rough idea of cost - no obligation.
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