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Darwen · Lancashire · BB3
Patio cleaning in Darwen
Patio cleaning in Darwen for Indian sandstone, York stone, porcelain, limestone and concrete flags. We take off the green film, black spot lichen and ground-in dirt that make a patio look tired, and bring the original colour of the stone back to the surface.
Exposed hillside positions above Darwen take the weather head-on, so roofs, render and flags green up quickly.
from £150
What patio cleaning involves
Patio cleaning removes the green film, black spot lichen and ground-in soiling from paved garden areas, working the surface back towards its original colour while protecting the planting, lawns and jointing around it.
A patio is treated as a stone surface first. Sandstone, limestone and older flags are softer than they look, so pressure is kept to the minimum that will do the work and chemistry does more of the lifting.
Patio cleaning in Darwen, Lancashire
Every patio is treated as a stone surface first and a cleaning job second. Planting, lawns and painted woodwork are sheeted, the flags are pre-treated, then cleaned at the lowest pressure that will do the job — sandstone and limestone are soft and will scar under a careless lance. Jointing is checked afterwards and re-sanded or re-pointed on request. It is the difference between a clean patio and a damaged one, and in Lancashire gardens that difference shows within a season. We are fully insured, we work tidily around occupied homes, and every Darwen job is photographed before and after so you can see exactly what you paid for.
What's included
- Surface cleaned then hand-lanced to the edges
- Black spot and lichen treatment
- Planting and lawns protected
- Re-sanding or re-pointing available
The process
How patio cleaning runs in Darwen
- 01
Assessment
We identify the stone or slab type, check pointing and levels, and note any lifting, cracking or previous repairs.
- 02
Protection
Borders, lawns, furniture, decking and painted woodwork are sheeted or moved, and run-off is directed away from planting.
- 03
Pre-treatment where needed
Black spot and lichen are treated and given time to work; these do not come off with pressure alone.
- 04
Controlled cleaning
The field is cleaned evenly and edges are hand-lanced, at the lowest effective pressure for that stone.
- 05
Rinse and clean-up
The area is rinsed down, debris removed and surrounding surfaces washed off.
- 06
Inspection and aftercare
We review the finish with you and re-sand or re-point on request once the surface has dried.
Why homeowners in Darwen book it
- Restores the natural tone of the stone rather than leaving a grey film
- Reduces slip risk from algae in shaded and north-facing areas
- Treats black spot lichen at the root rather than skimming it
- Makes seating and dining areas usable again without replacing the paving
Surfaces and properties it suits
- Indian and York sandstone
- Porcelain, granite and slate paving
- Limestone and travertine, cleaned with particular care
- Concrete flags and reconstituted stone
- Garden terraces, courtyards, poolside areas and steps
How long it takes
Most domestic patios are a half-day to a day. Re-pointing, sealing or very heavy lichen coverage adds time, and sealing needs a dry surface.
- The size of the area and how much of it can be reached with a rotary head rather than by hand
- Access — gates, steps, levels, parking for the van and the distance to water and power
- Condition: heavy moss, lichen or long-standing staining needs more passes or a longer dwell time
- Dwell time where a pre-treatment is used, which cannot be rushed without losing effectiveness
- Weather on the day, and how quickly the surface dries before any sealing or re-sanding
Important considerations before booking
- Softer stone is cleaned at reduced pressure, which takes longer than blasting would
- The right method depends on the material, so the surface is assessed before any equipment is set up
- Access, water and power availability affect both the method and the time on site
- Weather affects treatments and drying, so some work is better scheduled than forced
- Cleaning improves appearance and hygiene; it does not repair defects that are already there
What tends to happen if it is left
- Black spot lichen becomes more established and needs longer dwell times to treat
- Organic growth spreads and roots deeper, so a later clean takes longer and costs more
- Surfaces stay wetter for longer, which tends to make them slippery underfoot
- Small defects stay hidden under soiling instead of being spotted early
Free, no-obligation quote
Get a price for patio cleaning in Darwen
Tell us the surface, rough size and access. We normally respond within one working day with a price and the method we would use. Where a job needs a closer look, we say so rather than guess.
Your details are used only to prepare your quote — see our Privacy Policy.
What we look out for in Darwen
- North-facing walls and roofs prioritised
- Hand moss removal, never pressure on tiles
- Flagged yards and paths restored
Risks, existing damage and limitations
Cleaning does not create most of the problems it uncovers, but it does make them visible. These are the things we check for before we start.
- Loose or failed pointing
- Mortar joints that are already cracked or hollow can break down further and may need re-pointing.
- Soft and porous stone
- Sandstone and limestone can scar under a careless lance; these are cleaned at reduced pressure.
- Efflorescence
- White salt bloom can appear or reappear after cleaning as moisture moves through the stone; it is usually temporary.
- Existing cracks and rocking flags
- Cleaning exposes movement and hollow bedding that were already there.
- Historic sealers and coatings
- Failing sealers can look patchy once cleaned and may need stripping rather than washing.
How we reduce the risk
- A walk-round inspection before anything is switched on, so existing defects are noted and shown to you
- Method, pressure and nozzle selected for the substrate rather than a single setting used everywhere
- A small test area in a discreet spot where the surface is unusual, delicate or of unknown age
- Adjacent surfaces, planting, air bricks, vents and paintwork protected or avoided as appropriate
- Anything we find part-way through — a loose slab, a failed joint, a cracked tile — raised with you before we continue
What a good result looks like
A patio returned to a clean, consistent tone with the stone's character visible, joints intact or reinstated and no scarring from the cleaning itself.
What cleaning cannot put right
- Cracked, chipped or delaminating flags
- Rocking or badly bedded paving that needs relaying
- Rust and iron staining that has travelled through the stone
- Colour variation that is natural to the batch of stone
Keeping the result
- Allow the stone to dry fully before replacing furniture and pots
- Sealing is optional and best considered on porous stone once it is completely dry
- Clear leaf litter and standing debris through autumn — organic matter is what feeds regrowth
- Book a lighter maintenance visit before growth re-establishes rather than waiting for it to look bad again
Why us
Why Refresh Revive?
White Glove Standard™
The same documented standard of workmanship and finish on every single visit.
Surface-Specific Cleaning Methods
Soft washing, pure water or controlled pressure — matched to the material, never guessed.
Before & After Photography
Every job recorded so you can see exactly what changed, including work at height.
Professional Equipment & Safe Chemistry
Commercial-grade equipment and correctly dosed products, applied by trained operatives.
Honest Advice with No Pressure Selling
If a treatment isn't right for your property, we tell you — and explain why.
Questions
Patio cleaning in Darwen — common questions
Can you remove black spot from sandstone?
Yes. Black spot is a lichen rooted into the stone, so pressure alone will not shift it. We apply a dedicated treatment and allow it to work, which is why sandstone patios in Darwen sometimes need a short second visit for a perfect finish.
Will the cleaning harm my plants?
No. Borders and planting are sheeted before we start and rinsed down afterwards, and run-off is controlled away from beds and ponds.
How long does a patio clean take?
A typical Darwen patio is done in three to five hours. Larger terraces, or patios that need re-pointing, are quoted as a full day.
Questions & answers
Everything people ask us
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Patio cleaning nearby
Free, no-obligation quote
Get a price for patio cleaning in Darwen
Tell us the surface, rough size and access. We normally respond within one working day with a price and the method we would use. Where a job needs a closer look, we say so rather than guess.
Your details are used only to prepare your quote — see our Privacy Policy.