Decking cleaning specialists in Lincolnshire

Decking cleaning across Lincolnshire

Decking cleaning across Lincolnshire. We soft wash timber and composite decks to get rid of green algae and black mould without damaging the boards, and we work for homeowners all over the county.

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★★★★★5-star rated on Google • Trusted across Lincolnshire

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🛡Fully insuredPublic Liability

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✅DBS checkedVetted Team

Slippery green decking is a safety risk

Wet decking covered in green algae is easy to slip on, as well as looking a mess. Leave it and the moss and mould start eating into the wood, which shortens its life.

❌Green algae and slippery moss making your decking dangerous in wet weather

❌Black mould and dark staining that scrubbing and hosing just won’t shift

❌Timber turning grey and weathered from years of UV damage and neglect

❌Between-board dirt, debris, and organic growth making the whole area look unloved

A proper clean turns green, slippery boards into a deck you’ll want to use again, and it’s often done in a few hours.

Why choose Fenland Exterior Cleaning?

We turn up with proper kit and use the right method for the surface. And we care how the job looks when we leave.

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Commercial-grade equipment

Our equipment is professional spec and a lot more capable than anything you can hire, so the results last longer.

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Fully insured

We carry £1m public liability insurance.

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Safe on timber and composite decking

Timber and composite boards both need a gentle approach. We soft wash at low pressure, which gets them clean without splintering or bleaching the wood.

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DBS checked

Everyone on our team is DBS checked, so you know who’s working at your home.

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No mess left behind

We clear up all the waste before we go. You won’t be left with a half-finished job or a mess to sort out.

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Free quotes, no obligation

You get a fixed price before we start, with no hidden charges added on later. We look at the job first so the quote is right.

Get your free quote today

Decking types we clean

We clean all kinds of garden decking at homes across Lincolnshire.

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Softwood timber deckingPine and other pressure-treated softwoods, cleaned with a low-pressure soft wash

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Hardwood deckingIroko, teak, ipe and other hardwoods cleaned carefully to protect the grain

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Composite deckingComposite boards such as Trex and Millboard, cleaned safely without voiding warranties

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Between-board cleaningMoss and debris cleared out from between the boards

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Algae & mould treatmentA biocide that kills green algae and black mould at the root, so the deck stays clean longer

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Surrounding areasBalustrades, steps, skirting and the patio next to the deck can be cleaned on the same visit

Real results from recent jobs

Drag the slider on each photo to see the difference. Every photo is our own work in Lincolnshire, with no stock images and no filters.

Timber decking after cleaning by Fenland Exterior Cleaning — Timber decking, Lincolnshire

Timber decking before cleaning — Timber decking, Lincolnshire

PureSeal approved applicator

Fenland Exterior Cleaning is a PureSeal Services UK approved applicator. That means we’re trained to use HSE-registered biocides properly and by the label. Moss and black spot get dealt with safely and legally, and we take care around your plants and pets (and the neighbours).

Watch us at work

Short clips from real Fenland Exterior Cleaning jobs and quick answers to the questions customers ask us most.

How it works

Here’s what happens on the day, step by step. No fuss and no surprise charges.

Free survey

We check what your deck is made of and how big and dirty it is, then give you a fixed price with no obligation.

Biocide treatment

Before cleaning, we apply a biocide across the deck to kill the algae and mould.

Soft washing

A low-pressure soft wash takes off the residue without splintering timber or marking composite boards.

Between the boards

We clear the gaps between the boards of moss and built-up dirt.

Rinse and clear up

We clear away all the waste. Once it’s dried, usually within a couple of hours, your deck is clean and safe to use.

Areas we cover

We clean decking all over Lincolnshire and in the surrounding area.

Lincoln North Hykeham Sleaford Boston Grantham Gainsborough Stamford Spalding

Common questions

How much does decking cleaning cost?

It depends on the size and condition of the deck. Oiling or staining afterwards is an optional extra. We give a free fixed quote.

What’s the best way to clean decking?

Low-pressure soft washing with an algae and mould treatment, followed by a gentle rinse. High pressure lifts the wood fibres and leaves the boards rough and splintered.

How often should decking be cleaned and treated?

Clean once a year, ideally in spring. Timber decking benefits from oil or stain every 1–2 years after cleaning.

Is it safe for composite decking?

Yes. Our method is safe for all major composite brands.

Will the cleaner harm my plants or lawn?

We protect surrounding planting and rinse thoroughly. The treatment is safe once dry.

How long does it take?

Most decks take 1–3 hours. Allow a day for the timber to dry before applying oil.