Patio Cleaning & Black Spot Lichen Removal in Crook

Professional patio cleaning in Crook - black spot lichen treated properly, not just pressure washed. Sandstone, limestone, block paving. Call 07501 060609.

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We treat, clean and can seal patios across Crook - sandstone, limestone, porcelain, concrete flags and block paving all covered, with a biocide treatment for black spot lichen and moss before any washing starts.

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.

Patio cleaning prices in Crook typically run from around £4-£8 per square metre depending on material, condition and how much black spot lichen treatment is needed, with most standard-sized patios coming in as a fixed quote rather than an hourly rate.

Trained to Treat, Not Just Wash

Biocide trained (2024)
Up-to-date training means black spot lichen and algae get treated at the root, not just blasted off the surface.
Asbestos awareness trained
Useful on older properties where garden structures or outbuildings may contain legacy materials we need to work safely around.
Fully insured
Every visit is covered by full insurance for your peace of mind.
Softwash, steam and low-pressure methods
We match the method to the material rather than using one setting for every patio.

Steps for a Heavily Overgrown Patio

  1. 1

    Clear loose debris

    Moss, leaves and loose organic matter are cleared by hand first so treatment can reach the stone directly.

  2. 2

    Strength-matched biocide application

    On badly affected patios we use a stronger treatment mix, adjusted to the material so sandstone and limestone aren't over-treated.

  3. 3

    Extended dwell time

    Heavier growth needs longer for the biocide to work through fully - we don't rush this stage.

  4. 4

    First pass clean

    An initial wash lifts the bulk of the dead growth, often revealing the true condition of the stone and joints underneath.

  5. 5

    Joint and edge detail work

    Gaps between flags or block paving are cleaned individually where growth has been established for years.

  6. 6

    Second rinse and inspection

    A final rinse and a full inspection confirms nothing's been missed and flags any re-pointing that's now worth doing.

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.

Tree-Lined and Shaded Gardens

Gardens in Crook with mature trees or dense boundary hedging keep patios shaded for much of the day, which slows drying after rain and creates the damp, low-light conditions black spot lichen and moss thrive in. Falling leaves and sap can also stain the surface between cleans.

These patios often need the joints cleared as much as the flags themselves, since moss and algae take hold in the gaps first and spread outward from there.

Homeowners

New Homeowners Inheriting an Old Patio

Moving into a property with a patio you didn't lay yourself often means inheriting someone else's neglect - years of black spot lichen, unknown pointing condition, or a material you're not sure how to look after. We'll tell you honestly what it's made of and what it needs.

That includes flagging anything beyond cleaning, like joints that need re-pointing, before we start, so you're not surprised by an issue a wash uncovers rather than causes.

Cost Per Square Metre

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.

Porcelain or concrete, light growthfrom around £4-£5 per m²
Sandstone or limestone, moderate growtharound £5-£7 per m²
Heavy black spot lichen, any materialaround £7-£9 per m²

Getting to You

With good access via A690, reaching Crook is straightforward for our van and equipment, which keeps travel time down and helps us stick to the time we've quoted for on the day.

If your property has restricted parking or a narrow approach, let us know when booking so we can plan equipment and hose runs accordingly.

Patio Cleaning in Crook — common questions

If your patio's looking patchy, dark or slippery, it's very likely lichen or algae rather than anything more serious, and it's fixable. We treat it properly, clean it thoroughly, and tell you honestly if anything else - like re-pointing - needs attention.

Get Your Patio Looking Its Best Again

From black spot lichen treatment to a full clean and sealing advice, we'll bring your patio in Crook back to an even, presentable finish - properly treated, not just pressure washed. Fully insured and biocide trained.

Patio Cleaning in Crook — work in progress across the flagstones, on a DL15 propertyPatio Cleaning in Crook — close detail on the cleaned stone, just off the A690

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