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Breathable, low-maintenance and designed to stand up to the UK weather, it’s easy to see why K Rend is one of the most popular silicone render options around.

While there are plenty of tradespeople offering K Rend installation, how do you make sure they have the right knowledge and experience for a smooth, durable finish? That’s where Checkatrade comes in.

Read on for everything you need to know about finding and hiring the best K Rend installers covering Londonderry. Whether you're renovating an older property or upgrading your home’s exterior, we’ve got you covered.

Keen to speed up your search? Try our quick request a quote feature and we’ll put you in touch with K Rend installers covering your local area.

What exactly is K Rend?

K Rend is a pre-mixed silicone render designed to give exterior walls a durable, breathable and water-repellent finish. It's available in a wide range of colours and needs less maintenance than traditional sand and cement render.

How much does K Rend cost in Londonderry?

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That said, prices vary by region and property type. Complex surfaces, like pebble dash, can increase the costs, too.

For an exact quote based on your home's size and render requirements, you're best off speaking to a K Rend installer directly.

Tip: Want to know how K Rend compares to other renders? Our silicone render cost guide has all the prices.

Is K Rend better than sand and cement?

While traditional sand and cement render is technically cheaper, K Rend is often the preferred choice. That’s because K Rend offers:

• Better breathability
• Colour-through pigmentation (meaning no painting needed)
• Has better resistance to cracking

Meanwhile, standard sand and cement render usually need painting and more ongoing maintenance. So, the costs can stack up over time.

What are the disadvantages of K Rend?

While K Rend has many benefits, there are a few cons to point out:

• It can cost more per m² compared to standard render
• Dodgy installation can lead to cracking or uneven curing
• Surfaces may need additional preparation, such as mesh, depending on the wall type

Choosing an installer with plenty of experience applying K Rend will make sure you get a quality, durable job.

Can you K Rend over existing render?

Yes, the bonus of K Rend is that it can be applied over existing render. But only if the surface is stable, well-bonded and not failing. Installers may need to:

• Remove loose areas
• Apply a base coat
• Add reinforcement mesh

An experienced installer will assess whether the existing surface is suitable on their site visit.

How long does K Rend last?

When applied professionally, K Rend typically lasts 20–30 years. Its silicone technology helps it resist weathering, cracking, and algae build-up, making it one of the most durable render options.

Why use Checkatrade?

• Fully checked installers covering your local area
• Insurance always listed
• Easy to compare multiple profiles
• Handy reviews from local customers
• Covered by the Checkatrade Guarantee (T&Cs apply)