Dampness in Your Property and How to Treat it

A worrying site for buyers and certainly a concern too for homeowners / tenants will be the appearance of dampness. Sometimes we can confuse dampness with more pressing concerns such as leaks (roofing / water pipes) or accidental spillage such as tea spilt on the floor above and leaked through to ceiling below. Dampness is somewhat different and is an issue of excess moisture.

Dampness can come and go, especially between seasons and will react on the likes of house temperatures and outside weather such as long rain spells – Most likely to be worse in Autumn and Winter over Spring and Summer.

Places where dampness can be found include the bathroom, kitchen, on ceilings / walls / floors, windows, cellars / basements.

Bathroom are where a lot of moisture can be held via the likes of steam from showers and baths. In kitchens then it will be mostly from the likes cooking and washing up. When it comes to walls then you need to think about what is immediately on the other side as it may be an obvious source to the dampness such as a broken down pipe. Ceilings is a common area where dampness is spot as warm temperatures will cause the dampness in the air to rise and settle – Look out for darkened spots. Windows is another common area where dampness is spotted and accumulates – How many times have we seen condensation on windows and damp window sills! The basement and cellar areas of property will also be a place where dampness is happy to reside in amongst the dark, musty and already damp underground space – these areas can sometimes lack any ventilation.

What causes dampness?

There are many ways in which dampness takes presence in your property, the source being either from the outside or generated within.

Ventilation – The lack of ventilation will be a source of many problems that see the presence of dampness, the better your property is ventilated then the more excess moisture will be released out of it. It is important to consider that many homes, especially those newly built, are designed to keep water out so this in reverse will likely help to keep moisture in unless you get rid of it yourself. Even if you have a spare room and hardly ever use it, it pays to ventilate it every so often so it does not remain cold and a potential location for dampness to concentrate and thrive.

Outside causes – The problem of penetrating dampness can be via countless routes such as via cracked brickwork, loose rendering, missing mortar joints, dated flashing, eroded seals and more. Once again, if you note dampness inside, especially on walls, then you need to get your detective hat on and seek the source which if the wall is an exterior one then the moisture is likely to be coming from there originally. Chimney breasts are known to cause dampness so always check the roof area / chimney to see if rain water is penetrating within.

Rising damp – Missing damp proof coursing can see dampness creeping up from the ground to your walls / floors.

How to treat dampness in your home:

Treating dampness is all about stopping the source of it, prevention is key. From moisture in the air to dampness from missing roof tiles, you need to make sure that you have the problem resolved before you go on to finding the solution to what damage has been caused. Remember that dampness in property is not only aimed at those which are lived in, if you own a property that remains empty for long periods then it pays you to visit regularly to air it and check for any dampness visually or damp smells etc.

Any dampness in walls will dry out once the source has been stopped – Ideally look to take on repair work once the area is dried. Redecorating to simply sponging with clean water will rid of the likes of mould spots / spores. Plaster needs to be checked to see if the dampness has called weak spots / unsightly expansions (especially plasterboard).

If you home has little ventilation then think about extractor fans or even dehumidifiers. Try and keep you property warm and at a constant temperature to avoid condensation. Adopt habits such as keeping the bathroom window open during hot showers / baths and likewise if you have many saucepans on the go boiling food in the kitchen.

 

Christopher Walkey

Founder of Estate Agent Networking. Internationally invited speaker on how to build online target audiences using Social Media. Writes about UK property prices, housing, politics and affordable homes.

You May Also Enjoy

Letting Agent Talk

How to Clean Your Rental Property for a Full Deposit Return

Although it is a dreadful chore, sprucing up your flat at the end of your tenancy is vital if you want your entire deposit back. When it comes to cleaning, landlords and property managers usually have high standards. Any oversight could cost you part of your initial payment. Having said that, your property can look…
Read More
Breaking News

Two-year mortgage deals the lowest they’ve been since 2022 – but will they remain?

New research from Moneyfacts has shown that two-year mortgage deals are at the lowest they’ve been in two years and have also fallen to their biggest margin in over six months. The current average mortgage according to research is at 5.18%, having fallen by 0.14% in the past month. Meanwhile, five–year rates currently stand on…
Read More
Letting Agent Talk

CP12 Landlord Certificates: What They Are and Why You Need Them

If you’re a landlord in the UK with gas appliances in your rental property, you’re legally bound to ensure they’re safe. That’s where the CP12 certificate for landlords enters the picture. Also called a Landlord Gas Safety Record, the certificate assures that your property’s gas installation is safe and in accordance with regulations. Yet, despite…
Read More
Breaking News

Horse Guards Parade property prices up 17% since last Trooping the Colour

The latest property market analysis from London’s number one lettings and sales estate agency brand*, Foxtons, has found that it’s not just military prowess on show during Trooping the Colour this weekend, as house prices within the SW1A postcode, home to Horse Guards Parade, have soared by 17.3% over the last year, demonstrating the pedigree…
Read More
Breaking News

What landlords need to know about the upcoming Renters Rights Bill

The government’s long-awaited Renters Rights Bill is one of the most significant overhauls of the private rental sector in decades. While it has not yet received royal assent, the legislation is expected to come into effect late this year, or early in 2026. With the bill moving closer to becoming law, Steven Bond, managing director…
Read More
Breaking News

Breaking Property News 12/06/25

Daily bite-sized proptech and property news in partnership with Proptech-X.   The Renters’ Rights Bill: What Letting Agents and Landlords need to know The Renters’ Rights Bill is shaping up to be one of the most significant pieces of housing legislation in recent memory. As it moves steadily through Parliament, with Royal Assent anticipated in…
Read More