
Durham County Council · DH1
Patio Restoration and Cleaning in Durham
Durham patio cleaning specialists: treat, clean, seal. We handle sandstone, limestone, porcelain, concrete and block paving with lasting, even results.
07501060609Late winter and early spring is when patios in Durham look their worst - months of damp weather have given algae and black spot lichen a head start, and the low sun shows up every dark patch. It's also the point where most people start thinking about the garden again.
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.
It's not just about how it looks on the day either. Treating lichen properly rather than just pressure washing it means the result actually lasts, and a sensible sealing conversation afterwards protects the finish through the next few wet seasons.
Concrete Flags
- Older concrete flags, especially from the 1960s-80s, tend to be more porous than modern cast slabs and can show surface crazing after decades outside. We check condition before deciding on pressure, since heavily worn concrete can be more fragile than it looks.
- Concrete takes biocide treatment well, and a proper clean can bring genuinely tired-looking flags back to a much more even, presentable finish.
Handling a Patio with Mixed Materials
- 1
Map the materials
Many gardens combine sandstone, block paving and concrete edging - we identify each zone before starting so methods can differ across the same patio.
- 2
Treat by zone
Biocide strength and dwell time are adjusted per material rather than applied uniformly across the whole area.
- 3
Clean by zone
Porous stone gets gentler steam or low-pressure cleaning; denser porcelain or concrete can take a firmer wash where needed.
- 4
Blend the finish
We finish with an overall rinse so the different zones read as one consistent, even-coloured patio rather than a patchwork.
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.
Victorian Terrace Courtyards and Original Flags
Victorian terraces in Durham often still have the original stone flags or early concrete slabs in small rear courtyards, laid long before modern pointing methods. Decades of damp, shade from boundary walls and limited airflow make these some of the worst spots for black spot lichen we see.
The pointing between old flags is frequently lime-based or has been patched over the years, so we're careful with pressure and always flag any joints that look loose or crumbling before we start rather than after.
Homes & businesses
Pubs, Cafés and Beer Gardens
Outdoor seating areas need to look inviting and be safe underfoot, and black spot lichen or algae on paving does neither. We can work early mornings or on quieter days to treat and clean without disrupting service.
We're fully insured and can provide before-and-after evidence of the work if that's useful for your own records or landlord reporting.
Patio Cleaning in Durham — common questions
Treat first, clean second - that's how we get black spot lichen off patios in Durham for good rather than for a few weeks. Fully insured, biocide trained, and happy to advise on sealing and decking or fencing add-ons at the same visit.
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.
Get in touch with Trevor on 07501 060609 for a straightforward quote.
Fully Insured, Properly Trained, Straightforward
We cover Durham as part of our regular working area from Washington, so booking a patio clean here fits straight into our normal schedule - no special trip, no premium.


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