Maintain and Repair External Render

The cladding on your home exterior, also known as the render, serves many important purposes. For one, it keeps the walls looking nice and clean. You can’t put a fresh coat of paint on a bare exterior. It also helps with the home’s insulation. A solid render will improve your home’s heating and cooling efficiency, which will keep you comfortable throughout the year. But its most crucial function is protection. It keeps your house safe from the elements.

When the render isn’t maintained, damage slowly starts to creep up and become noticeable. Moisture and temperature changes start affecting the walls, which leads to further damage. This cascading effect leads to mold, rot, and plenty of other problems. You must identify external render issues before they grow into some costly problems that aren’t easy to solve. In many cases, these issues can affect the structural integrity of the building.

Since most people aren’t familiar with render maintenance and repair, we’ve come up with a helpful guide to get you through it. Here’s how it works.

Identify the Problem

The first order of business is to figure out where the render cracks are located. You should first note if there are any visible patches of damage along your exterior walls. You can’t miss them, as they’re quite noticeable compared to the even and smooth areas that aren’t affected. Cracks that are lined with moisture are a pretty glaring sign of damage.

Other types of issues might not be easy to spot with a glance, but you can identify them in other ways. You can use a hammer to check if parts of the render have separated from the substrate underneath. Tap the hammer on individual parts of the wall and listen for specific sounds. If you hear a hollow sound when you tap, the render has come away from the substrate. Once you’ve identified the problematic areas, it’s time to act.

Hack Off Loose Render

Since you can’t fix the render that’s already affected, you have to take it out. A hammer and chisel will come in handy for the job. Start by hacking away at the most prominent points of damage to remove the damaged render.

Be careful with where you chip it away, so you don’t remove the unaffected areas surrounding the damage. The good render can remain functional, so try to keep as much of it on the exterior walls as possible. For more precise cuts, you can use an angle grinder. This will help you save quite a bit of render.

Brush out the dust that has accumulated beneath the damaged render. After you complete this, you can start the actual repairs.

Repair the Render

Once you’ve taken care of the damaged parts of the render, it’s time to get down to repairs. Setting a new layer of the material should be your next priority. While doing the job on your own is feasible, it may be more complicated than you expect. Depending on the type of wall and the exterior’s shape, you could have your hands full with this task. More importantly, you must do the job perfectly so that the render will last a long while before needing further repairs.

For most homeowners, this task is a bit too much to handle on their own. We recommend that you find professionals to complete the house rendering instead. They can make sure that the job is done correctly and that there are no faults that would lead to problems down the line. If you’re inclined, you can even get professionals to do the whole maintenance project. They can better identify problem areas and fix them in a short amount of time. It’s the quickest way to complete the repairs and keep the walls of your house safe and secure.

Do Regular Maintenance

Every layer of your walls serves an essential purpose. If you want to keep the walls safe from the elements, you need to do regular house maintenance. This includes looking after any damaged patches and repainting the walls whenever necessary.

The paint job helps protect the lower layers from sustaining damage as well. Make sure that you look after your walls after the rendering is completed so that you don’t have to do it again any time soon. Just pay attention to the exterior and try not to bump into it with tools or heavy machinery. Keep the paint fresh every few years, and the walls will stay functional and secure for a very long time.


The continuous onslaught of the elements will eventually lead to damage to your home’s exterior. It’s an inevitable part of living in a house. However, you don’t have to worry about any structural damage or problems, so long as you do regular maintenance. With the help of rendering experts, you can take care of your walls’ problematic areas and rejuvenate the exterior of your house when necessary. It’s not a process that takes long, but it helps keep your house safe and looking brand new. The more quickly you take care of the problem, the sooner you can go back to being worry-free.

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We hope you found this blog post How To Maintain and Repair External Render useful. Be sure to check out our post How to Boost your House Exterior Looks and Increase its Value for more great tips!


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