How Damp Affects the Value of Your Home

How Damp Affects the Value of Your Home

For anyone who has experienced damp in a minor or major way, the inconveniences it can cause, not to mention the potential life-changing issue it can lead to, is something that has to be avoided at all costs.

Despite the range of issues that damp can cause, or is caused by, does it make your home less valuable? Or are house prices set?

In this blog, we will answer the question ‘How damp affects the value of your home?’

Cotswold Treatment (PP) Limited is dedicated to helping any homeowner, architect, surveyor, and more. Our services ensure that your home is as safe as possible from issues brought forward by damp, rot, condensation and more.

With our professional, experienced and reliable team, we ensure that your home is safe, comfortable, and secure from potential issues that we work to solve with our clients. See how we can help you today.

Understanding the difference between damp and mould

It may seem confusing, but damp and mould are not the same. The best way to think of it is that mould can come as a result of damp. If there’s no damp (or no excessive humidity, condensation, or leaks) there is no mould.

Here is a clear breakdown of the two.

  • Damp refers to the presence of excess moisture in a building or environment. The moisture can come from various sources like leaks, condensation, or poor ventilation. Dampness creates a favourable environment for mould growth.
  • Mould is a type of fungus that thrives in damp and humid conditions. It appears as fuzzy or slimy patches on surfaces in various colours like black, green, yellow, or white. Mould can sometimes emit a musty odour.

Can mould be removed?

Once mould is in your home, it can easily spread, especially if the environment is warm and humid. That being said, mould can be removed with mould surface cleaners. However, you should be aware that it will keep returning unless the cause of the mould is addressed. Whether that is damp, or poor ventilation etc.

What can cause damp?

Damp can come as a result of…

  • Structural issues that allow moisture to enter through the walls or ceiling. This can be from a damaged roof, or a damaged and exposed wall.
  • Leaks from pipes that carry water or other liquids.
  • Flooding.
  • Neglecting to dry certain areas or items in the dwelling.
  • Poor attempts to protect the home from outside moisture. (Allowing rain to enter the home by having windows open).

How damp affects the value of your home

How damp affects the value of your home

Damp can affect the value of your home, as damp itself, especially if left unattended, can damage the structural integrity of the home, whilst causing other issues that require excessive work to fix.

Generally, damp is an indication of a structural issue, whether moisture has come through a damaged roof, or come from a damaged pipe. The longer the moisture has access to the walls, ceiling or floor, the more damage it will create, and the easier it will be for mould to grow.

So logically, if your home was listed at a price of £300,000 for example, and you had extensive damp issues, that had been left to become mould that had spread, clearly, the home needs work to be safely occupied.

Repairing and replacing as a result of these damages can be extensive depending on the extent and the people conducting them. Any potential buyer would take this into consideration before making any sort of offer. The more work needed, the more they can essentially haggle, and rightly so.

In terms of common decency, it is unfair and morally corrupt to sell an unsafe home whilst still expecting a full price. However, if your property listing has a reduced amount in consideration to the work that is needed, this can be a fairer alternative.

Can you prevent damp from affecting the value of your home?

Yes. Although in some cases, it could be easier said than done. The way to prevent damp from influencing the value of your home is simply by addressing the cause of the damp, and repair/replace any of the affected areas.

That being said, these are the average prices for damp-proofing methods in the UK.

Damp proofing costsCost + VAT (low to high)Average cost
Damp-proof course cost£250 to £2,000£850
Damp-proofing external walls cost£750 to £2,500£1,500
Damp proofing a cellar cost – tanking£30 to £60 per square metre£45 per square metre
Damp-proof course injection cost£1,000 to £5,000£3,500

How do I prevent damp and mould altogether?

Because mould is a by-product of excessive damp, by preventing damp, you can prevent mould in your house.

It can be difficult to know where to start when it comes to preventing damp, because you often don’t know where the susceptible areas of the building are until the damp has actually formed.

The first method is by damp proofing your home if you haven’t already. By having your home being seen to by experts, they can easily identify areas that need the additional support to prevent damp.

When it comes to leaking pipes, to the best of your ability, try to ensure that your pipe is made from a reliable and strong material. Whilst ensuring that the area surrounding it is free from anything that could cause external damages.

Mould, however, is slightly easier to avoid, granted that it hasn’t come from a leak or structural issue. Undertaking a daily ventilation routine, in conjunction to using an extractor fan when cooking or showering whilst having windows open, is a simple yet effective means of managing mould.

Can mould affect your health?

Can mould affect your health?

Yes. Aside from the musty smell, and disgusting fungal appearance, mould has the capacity to impact your health. Although this will vary on an individual basis, it is not worth waiting to see how bad it can affect you. Any instance of mould should be removed immediately.

Mould has the potential to affect those with existing health issues, particular those that affect breathing. Aside from this, mould has the potential to cause…

  • A dry, chesty cough.
  • Dry, itchy, red eyes.
  • A runny nose.
  • Cold-like symptoms
  • Muscular aches and pains.

The effects of mould are far-reaching and can can easily be more than the basic symptoms we have listed. In any instance, be sure to get a diagnosis from your doctor, as your issue may not be directly related to mould.

How do I know that mould is causing health problems?

The best way to test whether mould is a source of new health issues, is spending as long as possible away from it. We understand not everyone has the capacity or capabilities to do this. However, by doing this, if you find that certain health issues are gone, it is a very strong likelihood that the mould in your dwelling is contributing to it.

Delete damp from your home today

Delete damp from your home today

At Cotswold Treatment (PP) Limited, we strive to help all our customers to the best of our ability. We deal with issues caused by condensation, damp, rot, and wood boring pests, we also provide solutions for interior and exterior wall cracking.

As damp proofing specialists who have been in the industry for over 25 years, we guarantee that we work diligently to solve any issues you require our help with.

In this blog, we hope to have shown you how damp affects the value of your home, Whilst providing supplementary information that you can learn from.

If you have any questions or are looking to obtain a quote, please don’t hesitate to contact us. You can click here, or get in touch through the details below.


Unit 28e,

Poundmill Business Centre



BS35 1NX


Bristol: 01454 417199 

Gloucester: 01453 511154  


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