Frequently Asked Questions

Frequently Asked Questions about External Wall Insulation and Rendering

Welcome to our FAQ page, where we aim to answer your most burning questions about external wall insulation and rendering. From understanding what these services entail, to figuring out their costs, benefits, and maintenance, we’ve got you covered. Our team at Armourend believes in empowering our clients with knowledge, ensuring that you make the best decisions for your property. Let’s delve into the questions our clients frequently ask us. Don’t see your question here? Feel free to reach out to us for any further clarification!

What is external wall insulation?

External wall insulation involves adding a layer of insulation material to the outside of a building and then covering it with a special type of render or cladding. This can significantly improve a property’s heat retention, potentially reducing energy bills and improving comfort.

How much does external wall insulation cost?

The cost of external wall insulation can vary greatly depending on the size of your property, the type of insulation material used, and the complexity of the installation. For a precise quote tailored to your needs, we recommend contacting us directly.

Can I do external wall insulation myself?

While it’s technically possible to install external wall insulation yourself, it’s a complex and labour-intensive task that requires specific skills and expertise. In order to ensure a safe and effective installation, we strongly recommend using professional services like Armourend.

How long does external wall insulation last?

With proper installation and maintenance, external wall insulation can last for many decades. It’s a long-term investment that can enhance comfort and efficiency in your home for years to come.

Is external wall insulation worth it?

Yes, external wall insulation can be a worthwhile investment. Not only can it enhance comfort and reduce energy bills, but it can also add to the property’s value and kerb appeal.

How to maintain external wall insulation?

Maintenance of external wall insulation typically involves regular visual inspections to check for any damage or wear, cleaning to remove dirt or algae, and occasional repairs or replacements as necessary. We can provide detailed advice based on the specific type of insulation and render used.

Can external wall insulation cause damp?

If installed correctly, external wall insulation should help prevent damp by improving the building’s thermal performance and preventing condensation on the walls. However, if not installed properly, it could potentially contribute to damp issues. That’s why it’s crucial to use a professional service like Armourend to ensure a high-quality, correct installation.

What is external rendering?

External rendering is a process where a mixture, such as cement or lime render, is applied to the outer walls of a building. This not only improves the aesthetics but also provides protection from weather and can improve thermal performance.

How much does external rendering cost?

: The cost of external rendering can vary widely, depending on factors such as the size of the property, the type of render used, and the complexity of the job. For a precise quote tailored to your specific needs, please contact us directly.

How long does external rendering last?

The lifespan of external rendering can vary based on the type of render used and the conditions it’s exposed to. On average, you can expect a render to last anywhere from 20 to 40 years with proper maintenance.

What types of external rendering are available?

At Armourend, we offer a range of rendering options to suit different needs and aesthetics. This includes traditional lime and cement renders, as well as modern, coloured renders like Monocouche, Sto, and K-Rend.

What is the best type of render for a house?

The “best” type of render can depend on various factors, such as the existing exterior material, the desired finish, and specific weatherproofing or insulation needs. We can provide expert advice on the most suitable type of render for your property.

How to repair external render?

Render repair typically involves removing the damaged areas, preparing the surface, and then applying a new layer of render. It’s a job that requires the right materials and expertise to ensure a lasting finish, which is why we recommend professional services like ours for such tasks.

Can I render my house myself?

While it’s possible to render a house yourself, it’s a complex and labour-intensive task that requires skill and expertise. Incorrect application can lead to issues such as cracking or water ingress, so we recommend hiring professionals like Armourend.

How to clean external render?

Cleaning external render involves removing dirt, mould, and algae without damaging the surface. It’s often done using a soft wash method. However, cleaning should always be done with care to avoid damaging the render.

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01708 530 231


01708 530231
15 Briarleas Gardens, Upminster, RM14 1LP

Areas Covered by Armourend’s Specialist Services

We understand that each home and building has its unique needs, which is why our team of skilled professionals is ready to provide tailored solutions across various locales. Our commitment is to ensure that wherever you are, your property benefits from our unparalleled attention to detail and enduring quality.

Currently, our external rendering and related services extend to the following areas:





West Horden

Langden Hills

South Ockendon






Mill Green