Commercial Render & Cladding Cleaning in Kent & Surrey – Why It’s a Must in 2025

In 2025, more commercial buildings than ever are showing visible signs of wear—green algae stains, weathered cladding, and render that no longer looks the part. If you manage a commercial property in Kent or Surrey, this isn’t just a cosmetic issue. It’s a financial one, and it’s costing your business more than you might think.

Why Now? The 2025 Weather Wake-Up Call

The South East has just come through another wet, mild winter. While that might sound harmless, it’s the perfect storm for algae, lichen, and biofilm to take hold—especially on light-coloured render and ageing cladding.

This year, we’ve seen a spike in enquiries from business parks, offices, schools, and retail estates across Maidstone, Guildford, and Tunbridge Wells—each facing the same issue: their buildings are turning green.

After a particularly wet and mild winter, many buildings in Kent and Surrey are now showing signs of algae and grime. Met Office data confirms that these damp conditions are becoming the new normal.

And when your premises look neglected, so does your reputation.

What Happens If You Don’t Clean Your Exterior?

1. Damage to the Surface

Render and cladding are both vulnerable to moisture. When organic growth sits on the surface too long, it traps water—causing staining, hairline cracks, and eventual deterioration. Metal cladding can corrode. Render can crumble.

Historic England warns that changing weather patterns and rising humidity are accelerating damage to building façades.
What starts as a dirty wall could end in a costly refurbishment.

2. Loss of Curb Appeal

First impressions count. Whether you’re trying to attract tenants, impress clients, or simply maintain staff pride, a clean, modern-looking exterior speaks volumes.
A stained or dirty façade? Not so much.

3. Lower Property Value

Poor maintenance drags down asset value. For owners and investors, a neglected exterior can mean reduced market interest, tougher lease renewals, and lower valuations during refinancing.

4. Health & Safety Risks

Algae and grime aren’t just unsightly—they can cause slippery walkways and even contribute to poor air quality indoors. That creates potential liability for facility managers if left unchecked.

Have hard surfaces like paving, driveways or commercial walkways? Learn how our pressure washing services restore appearance and safety without surface damage.

Why Soft Washing Is the Right Method

We don’t use pressure washing for render cleaning—ever. Why? Because pressure washing can erode the surface, blow out sections of render, and force water behind the substrate—leading to costly damage and long-term problems.
Our process uses a gentle soft wash system: a low-pressure application of cleaning solution that safely removes algae and organic staining without damaging the surface.

It’s thorough, long-lasting, and specifically suited for commercial-scale façades, even multi-storey buildings.

We also use soft washing for cladding cleaning, especially where delicate finishes or coatings must be preserved.

Locations We Serve

Nautilus Clean covers all commercial properties across:

• Kent (Maidstone, Ashford, Sevenoaks, Canterbury)

• Surrey (Guildford, Reigate, Woking, Epsom)

• South East London borders (Bromley, Bexley, Orpington)

Whether you manage a retail park, office block, industrial estate, or educational campus—we’ve got the team, equipment, and expertise.

How Often Should Commercial Render or Cladding Be Cleaned?

Most clients opt for an annual clean to stay ahead of build-up, but high-traffic areas or north-facing walls may need more frequent attention.

We recommend a free site inspection to assess what your building actually needs—no guesswork.

Why Clients Choose Nautilus Clean

• Over a decade of commercial exterior cleaning experience

• Fully IPAF and PASMA qualified teams

• Risk assessments and method statements provided

• Minimal disruption – we work around your hours

• Aftercare advice to keep surfaces cleaner for longer

Ready to Discuss Your Building?

Whether you’re planning ahead or already fielding complaints about the look of your premises—don’t wait. A short phone call or site visit could prevent long-term damage, protect your investment, and restore your building’s look without disruption.

Want More Exterior Care Advice?

Keeping your building’s render and cladding clean is just one part of long-term exterior maintenance. For expert tips on render cleaning, cladding cleaning, and professional exterior care, visit our Knowledge Hub. You’ll find practical advice, FAQs, and service guides to help you protect your building investment year-round.

 

Frequently Asked Questions

Q: Can you work around business hours or weekends?
Yes. We often schedule early mornings, evenings, or weekends to avoid disrupting footfall and operations.

Q: Is your cleaning method safe for coloured render or powder-coated cladding?
Absolutely. We test every surface and use the correct solution strength and dwell time to ensure no colour fading or surface damage.

Q: Are you insured to work at height?
Yes. Our team holds IPAF and PASMA certifications, and we carry full public and employer’s liability insurance.

Want to learn more about caring for exterior surfaces?

For more expert advice, visit our Knowledge Hub on exterior cleaning

Ready to Clean Your Building?

Whether you’re planning ahead or already fielding complaints about the look of your premises—don’t wait. A short phone call or site visit could prevent long-term damage, protect your investment, and restore your building’s look without disruption.