Failed Cavity Wall Insulation - How Much will the Damage Cost You?

Failed cavity wall insulation - cost of damage

If your fridge was broken, would you keep buying fresh food again and again to replace the food that was constantly rotting? Or would you just buy a new fridge? 

You would just buy a new fridge, wouldn’t you? Well, the same goes for your failing cavity wall insulation. You can either try and keep up with the damage control, (which could end up costing you even more than the removal itself). Or you can bite the bullet. Take the step to curing your home, i.e., removing that failing insulation!

In just 5 minutes, you can uncover all the costs of damage that failed cavity wall insulation could cause in your home.

                                      Want to skip the article and get down to busines? Fix your insulation now!

Can cavity wall insulation damage your property?

Failing cavity wall insulation is absolutely no joke to your pockets. There are so many things to go wrong if it is just left!


‘You can’t plaster on a wet wall’- First choice Energy Ltd, 2021. Are you having to constantly re-plaster, re-paint, repeat? This is because the lingering, damp, failing cavity wall insulation is making your walls moist. This means you and your local plasterer will soon be on a first name basis! Now, you may think it’s an easier, cheaper alternative than having cavity wall insulation removal (which would only take one or two days, then you never have to worry about it again, just saying). But think of the amount of time, money and energy spent on constantly having to re-do your lovely living room. Whether if its DIY or Phil the Plasterer. 

This could alllll be avoided by one simple solution, hint hint, cavity wall insulation removal. Leaving you with more time to spend with your friends, family, cat, et cetera. Not to mention your living room won’t constantly look like a construction site, your holiday savings pot will remain untouched, and Phil can just be known as ‘the Plasterer who lives down the road’.

Heating Bills

You could be racking up ridiculous heating bills. With the temperatures whacked up so high you should feel like you’re sunning it out in Aus, not taking residency in a freezer. Speaking of- you may as well leave your food shopping in the middle of your kitchen, after all, it’s colder there than it is in your fridge!


                                                   Do you think your isnulation is costing you bill after bill?

Rotting floorboards & joists

The damp and mould caused by your failing cavity wall insulation will not only make you feel unwell, it can also create a risky home environment for you and your family. If the problem is not cured at its source, the damp and mould will penetrate the wooden structures of your home, causing them to rot. What happens to wood when it rots? It gradually becomes brittle and will eventually break. The price on this type of damage depends on how many floorboards/ joists are affected. Typically this can cost anywhere in the region of £200 – £2,000. Not to mention the cost of the safety of you and your family.

Render & brick ties

What else could possibly go wrong? Famous last words! 

Remember us mentioning a little thing called a cracked render? (And bricks of course). You could be forking out at least 2k for the replacement of just a few brick ties on a brick wall and its only downhill from there unfortunately. You could be faced with a rather hefty bill of £7000 to replace the brick ties of the whole face of a house with a render AND the fixing of the render itself. Ouch. Imagine spending that money on a literal wall, when instead, you could go on at least 5 holidays with that money or buy around 7000 packets of hobnobs- if they’re on offer- (it’s up to you really).

Depreciation of property value

The most realistic answer if you’re being honest with yourself is, not if you can afford not to, yes? You might find it extremely difficult to find someone to take your house off your hands (for a price, of course) when there’s a structural failure that could potentially cause physical damage to your property itself, such as failing cavity wall insulation. That’s not to mention, again, about how your house looks to potential buyers. As we’ve mentioned before, if the failure of your cavity wall insulation is severe enough to cause symptoms, such as mould, damp, structural damage, such as dry or wet rot of the woodwork in your home or cracks in the external walls, it’s a massive red flag to anyone viewing your house- no one wants to buy a house that could possibly make them and their family ill, or cause physical injury… would you?

That being said, if someone, who clearly loves a challenge, purchases your house, it will likely be for far less than your property’s potential maximum value. All of the risk to your health, the money involved in rectifying the failing cavity wall insulation, and all of the damage it’s caused by your neglect will definitely depreciate the value of your property, it’s a shame really! Are you thinking of selling your house? Why not aid your home in achieving its peak resale potential and invest in cavity wall insulation removal?

                                                  Want to maintain your property value and your home pride?

Does home insurance cover the cost of damge?

You may think your insurance would cover it! Think again! One of the conjectures you agree to when insuring your home is that your house is in good health. Unfortunately for you, a mouldy and damp house is a health condition that insurance companies cannot turn a blind eye to! Your insurance company will not cover the damage to your house caused by the failing cavity wall insulation. Think of damp and mould, not as a common cold, but as the flu, paracetamol and an apple a day won’t save your house here! You know what they say, “feed a cold, starve a fever”, so why are you feeding your feverish, fluey mould and damp problem by keeping your cavity wall insulation? Cure the illness at its source with cavity wall insulation removal!

A quick recap...

Not having cavity wall insulation removal could mean your house will be donning a beautiful bit of scaffolding to replace the brick ties or maybe your living room wall will look like a biology student’s lab work until the end of time. However, cavity wall insulation removal is a minimally invasive process that takes a maximum of 2 days, leaving a tiny little scar on the outer walls of your home, that, alongside ensuring the health and safety of you and your family makes it a no brainer, really.

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