Can you clean K-rend?

Yes. K-rend is soft washed with biocide and rinsed at low pressure — never pressure washed, since the coloured finish is thin enough to be damaged by force.

What causes the green staining on my walls?

That's usually algae, which establishes on damp, shaded render and brick. It's cosmetic rather than structural, but it does spread if left, which is why we treat the growth with biocide rather than just rinsing the surface.

Is the black streaking on my brick chimney a problem?

Black streaking is typically fungal growth rather than damage to the brick itself, though it can look worse the longer it's left. Soft washing and steam lift it without harming the brick or mortar underneath.

What's involved in cleaning lichen off render?

Lichen is one of the more stubborn growths — it often needs a longer biocide dwell time than algae to break down properly. We treat it accordingly rather than rushing the rinse.

Render & Brick Cleaning (Soft Wash) in Darlington — algae staining lifted off the wall, on a County Durham local street

Professional Soft Wash Cleaning in Darlington

Trusted render and brick cleaning in Darlington. Fully insured, biocide trained, soft wash only — protecting your render while it's cleaned properly.

07501060609 Get a free quote

Render and brick cleaning in Darlington typically runs from around £150 for a single elevation up to £550–£650 for a full detached property, depending on render type, how established the growth is, and access.

Soft washing is the correct method: biocide does the cleaning, low pressure just rinses it away, and the render coat itself is never put under the kind of force a pressure washer generates.

A soft-washed render or brick elevation in Darlington comes back looking close to its original colour — not patchy, not streaked, and not stripped back to bare aggregate the way an aggressive pressure wash can leave sand-and-cement render.

The biocide we use

We use professional-grade biocide formulated to kill algae, lichen and fungal growth on render and masonry, applied at rates matched to the surface and how established the growth is. We're biocide trained (2024), so it's used correctly rather than sprayed on and rinsed off too soon.

Getting to you

We're based in Washington and cover roughly 45 miles out from there, so Darlington is well within reach — A1(M) makes it a straightforward run for us with equipment, which keeps travel time, and cost, down.

Typical render and brick cleaning prices

Our quotes are always based on what we actually find on site, not a generic price list — established lichen, difficult access or a full portfolio of buildings all shift the number, so treat the ranges below as a starting point.

Terraced house, front elevation	from around £120–£180
Large detached / high elevations	typically £500–£750
Gable end / hard-to-reach elevation	add around £40–£90
Larger detached property	typically £450–£700

We're not just a Darlington company

While Darlington is one of the areas we work in regularly, we cover a wide spread around it, from Middleton St George, Newton Aycliffe, Yarm and Shildon outward — one contractor for render and brick cleaning across the whole area, rather than a patchwork of local one-off jobs.

Render & Brick Cleaning (Soft Wash) near Darlington

Homes & businesses

Render and brick cleaning for landlords and property managers

Managing render and brick cleaning across several properties is easier with one contractor who applies the same standard everywhere. We're fully insured with documented biocide training, so you've got a consistent, accountable service across a portfolio rather than different results from different subcontractors.

Render and brick on mixed commercial premises

Shopfronts and commercial units around North Road Industrial Estate often combine rendered upper floors with brick or block at street level, and years of traffic grime plus the usual algae staining can make a building look tired even when it's structurally fine.

We soft wash render sections and use steam or low pressure on brick and block, timing the work outside opening hours where needed so the clean doesn't disrupt business.

Safety on older properties

Fully insured
Public liability cover in place for every job, render or brick, residential or commercial.
Asbestos awareness trained
Know what to look for and how to handle it on older properties.
Biocide trained (2024)
The core skill behind a proper soft wash — knowing what to apply and for how long.
Fully insured
Full cover in place regardless of property age or condition.

Render & Brick Cleaning (Soft Wash) in Darlington — common questions

Soft washing gets to the root of algae, lichen and black streaking rather than just blasting it off, and it's the only method that won't damage K-rend, monocouche, pebbledash or sand-and-cement render. That's the standard we work to on every job across Darlington.

We soft wash render and clean brick across Darlington, using biocide treatment and low pressure to lift algae, lichen and black streaking without risking the render coat or old mortar. Fully insured and biocide trained (2024) — get in touch for a quote.

Algae, lichen and black streaking don't need a pressure washer to shift — they need the right biocide treatment and a bit of patience. That's what we bring to every render and brick job in Darlington.

Don't let it get worse

Send a few photos or call Trevor on 07501 060609 for a render and brick cleaning quote.

Get a free quote Call 07501060609

Render & Brick Cleaning (Soft Wash) in Darlington — the elevation part-way through treatment, on a DL1 property

Render & Brick Cleaning (Soft Wash) in Darlington — the finished render drying in the sun, just off the A1(M)

Render & Brick Cleaning (Soft Wash) in Darlington neighbourhoods

Harrowgate Hill Haughton Mowden