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External Rendering

External Rendering

External rendering does more than improve the appearance of a property. When the right system is used, it also helps protect external walls from weather exposure, penetrating damp and long-term moisture-related deterioration. DampMaster specifies and installs breathable rendering systems chosen to suit the age, condition and construction of the property.

What We Treat

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Rising Damp

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Penetrating Damp

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Damp Proofing

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Condensation & Mould

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Woodworm

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Wet Rot

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Dry Rot

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Water Damage

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Rising Damp

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Penetrating Damp

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Damp Proofing

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Condensation & Mould

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Woodworm

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Wet Rot

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Dry Rot

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Water Damage

Why render choice matters

Not every property needs the same rendering system. Older buildings, solid-wall homes and heritage properties often need a breathable approach, while other properties may benefit from a more modern weather-resistant finish. The wrong specification can trap moisture in the wall and create more serious problems over time, including cracking, crazing and water penetration.

Breathable, waterproof render systems

We offer three breathable systems: lime, silicone and cork. Each is chosen according to the age, construction and condition of the property. All three allow moisture within the wall to escape naturally rather than becoming trapped behind a non-breathable surface, helping the render perform properly for the long term rather than simply masking what is happening beneath it.

How DampMaster helps

Our recommendations are made with moisture behaviour in mind, so the chosen finish improves weather resistance while still allowing the wall to breathe where appropriate. This is especially important on older solid-wall properties, where the wrong external finish can make internal damp issues worse rather than better.

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Common signs of issues with rendering

The most common signs of issues with a home’s exterior render include visible cracking, hollow-sounding patches and, of course, internal damp. If the exterior render is compromised, moisture can seep through the brickwork and cause damp patches, peeling paint or mould on interior walls.

Why choose DampMaster?

We understand the relationship between damp, wall construction and external finishes, so rendering recommendations are based on more than appearance alone. We specify systems that suit the building, not just the brief.

As with all our external works, DampMaster manages the full installation process from start to finish. This includes scaffolding erection, waste removal, skip allocation and all relevant health and safety documentation, so clients do not need to arrange or manage any part of the project themselves.

Why Homeowners & Businesses choose DampMaster Underline

Unique Approach

Unique Approach

We do not apply a one-size-fits-all fix. We treat each job with care and respect and aim to do it right first time, everytime.

Survey-Based Reccomendations

Survey-Based Reccomendations

Recommendations are based on survey findings, property type and the most appropriate treatment method.

We Fix It. Guaranteed

Guarantee-Backed Work

Damp proofing work is backed by a guarantee where applicable.

FAQs & Support

Common signs of damp include tide marks or staining on walls, peeling paint or wallpaper, black mould, musty smells, and crumbling plaster or woodwork. You may also notice condensation on windows, cold or wet-feeling walls, or a general damp feeling in certain rooms, especially at ground level or in basements.

Damp can be caused by a range of issues, including rising damp from the ground, penetrating damp due to leaks or damaged masonry, condensation from excess moisture in the air, or even faulty gutters and drains. Our surveyors will assess your property to identify the exact cause and recommend the right solution.

Yes, especially if you’re seeing signs of damp or planning to buy a new property. A professional damp survey will help you understand the cause, severity, and best course of action. It’s the first step toward protecting your home (and your wallet) from long-term damage.

Costs can vary depending on the type of damp, the size of the affected area, and the treatment required. We carry out an initial damp survey so we can assess your property properly and provide a clear, fixed-price quote with no hidden fees.

Most treatments are completed within a few days, depending on the size of the job. We’ll always give you a clear timeline upfront, and we work hard to minimise disruption to your home.

In most cases, no. You can stay in your home while we carry out the work. If large areas need treatment or plastering, we’ll discuss this with you in advance so you can plan accordingly.

Yes, if plastering is part of the process, you’ll need to redecorate. We’ll leave your walls ready to paint or wallpaper once they’ve dried fully. We can also recommend trusted decorators in your area if needed.

Yes. All DampMaster surveyors are PCA-trained and experienced in identifying damp, timber, and other issues. Our technicians are fully trained, insured, and follow strict standards to ensure high-quality workmanship. Our surveyors also hold ABBE Level 3 in Damp, Mould and Condensation.

We have local experts covering towns and cities across the UK. Our Locations page will help you to check coverage in your area, or just give us a call on 08000 88 66 99 and we’ll be happy to help.

We’re here to help. Whether you want advice, a second opinion, or to book a survey, get in touch with your local DampMaster expert today.

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Get in touch with DampMaster if you need advice on external rendering, breathable wall finishes or weather-related moisture problems.

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Our Other Services Underline

Exclusive to Dampmaster, we have the internal capability to manage your entire project from start to finish, across any level of remediation work, so you don't need to juggle multiple contractors.

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0% Interest Free Finance Available

Get in touch with your local DampMaster to find out whether 0% finance is available in your area and to book a survey.

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End-to-End Property Remediation

We manage your entire project from start to finish so you don't have to juggle multiple contractors. From your initial survey to roofing, drainage, external rendering, and internal plastering - we handle it all under one roof.

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    Protecting homes and businesses across the UK from damp, mould, timber decay and structural issues for over 15 years.


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