Here is a question to the blog clinic from Kim who is a tenant
We moved into our property 11 months ago (rented via a letting agency).
Two weeks ago we discovered a fairly large mould problem affecting the whole wall of our bedroom, inside the built-in wardrobes.
We immediately informed the landlord, as the walls were so damp we were concerned that there was a leak in the roof. The agency sent someone round to assess the problem, who informed us that it was likely a condensation problem (but also advised that the landlord needed new guttering), and the wall/wardrobe interiors would need to be treated with industrial bleach and painted with mould-proof paint.
They said that the landlord would pay for the repairs on this occasion because he had previously had a “small” mould problem, which was “completely resolved by opening the windows for 5 minutes each morning and intermittently leaving open the wardrobe doors”. He had not had the mould properly treated at that time; I therefore feel that we were just “sitting ducks” for mould to develop.
However, when we asked for (a tiny) amount of compensation – just enough to cover a replacement suitcase, since ours became covered in mould and have had to be taken away to be cleaned – we had a rude email back from the letting agency, insinuating that the mould was our fault as “whenever they had visited the property the windows were closed and curtains drawn”.
The windows do not lock at a partially-open level, so we are unable to leave them open when we are out (which are the only times they have visited); I routinely leave the curtains closed when I am out to keep in the heat/prevent sun damage/”prevent” burglars etc. The room has no air vents, and the wardrobes do not have air vents either.
The room, and indeed house, is otherwise well ventilated – the bedroom door is always left open to ensure airflow, we regularly open the windows when we are home, often leaving the bedroom windows open throughout the night as I do not like sleeping in a stuffy room, and the house is also well heated with heating set to come on with a timer twice a day in winter – we often have it on all day if we are in.
We had not wanted to take this to court, but the rude email from the agency has infuriated me; they could be liable for much more compensation than I had informally asked for, since we are also likely to be eligible for rent abatement for loss of use of our property, compensation for loss of working time while I dealt with the problem and various contractors, compensation for medical problems (I am allergic to the mould spores, which have given me rhinitis, asthma and chronic headaches), and to cover costs due to damage to all our goods and belongings, which runs into hundreds/thousands.
Any advice on whether this would be worth it, or how to proceed from here, would be very welcome.
Condensation problems are always difficult. There are a couple of posts on this subject on the blog such as this one here. Generally you can only claim compensation if the condensation is due to the landlord being in breach of his statutory repairing covenants. Unfortunately this means that if the condensation /disrepair is due to poor design of the property, then the tenant cannot normally claim.
So if in this case the problems are caused by the roof and guttering not being in proper repair you have a claim. If it is caused by the lack of proper air vents, it may be that you are not.
Assuming that it is the roof/guttering which is the cause, then I suggest you make a detailed list of all your losses and send them off to the agents saying that if it is not possible to come to an amicable arrangement regarding your claim, you will be considering making a claim through the courts for the items set out on your list.
You could add that you are still unhappy with the problem (if it is still ongoing) and say that you are also considering asking the Local Authority to carry out an inspection under the Housing Health and Safety Rating System.
They will probably want to avoid this, as if the Local Authority inspection finds there is a hazard regarding condensation and mould they can serve an improvement order on the landlord. This could prove expensive for the landlord.
Hopefully if the agents / landlord realise that it will be less trouble to pay you your original compensation claim they are are more likely to action this.
If however the agents / landlords ignore this, I suggest you take legal advice before actually going to court. You may be able to find a solicitors firm willing to help you on a no win no fee basis, particularly regarding your personal injury claim.

I’be had this problem! The tenant reported mould in a wardrobe and after spending out on air vents, installed a dehumidifier and spent lots of time scratching our heads, it turned out that the house was single skin built so the warm air was hitting a cold wall and causing condensation.
It wasn’t anyone’s fault but the builder advised battening and putting up plasterboard to create a cavity. 4 years on it seems to have worked.
As regards compensation, tenant was advised to claim against his contents insurance. He was incredibly abusive so, to appease him, I agreed to pay for some dry cleaning and a small amount of compensation.
Advice: put nothing in the wardrobe and put complaint in writing to landlord and agent
Thanks for your thoughtful comment HMOLandlady.
If the problem is the same as yours though I suspect putting up the plasterboard is not something that will be easy to do while the tenants are in situ.
It will also reduce the size of the room which will be annoying if it is a small room.
You can get that polystyrene veneer stuff to line a wall with before papering over that with a couple of layers of lining paper. Shouldn’t make a room that much smaller. But the stuff is quite fragile – you chuck a book down on a desk and if it bounces off and hits the wall it’ll probably tear it/damage it.
Been dealing with an allegation like this today and remember back when i was a landlord myslef a tenant witholding rent on me claiming damp had damaged her clothes when she just never opened the windows.
Tenants will usually claim defects in property but so much is down to condensation caused by drying clothes on rads and not airing the place. Its such an eternal problem that at my place of work we have recently sent out a leaflet to all tenants pointing out how condensation happens and how to avoid it
Addendum to above. Under what I seem to recall is section 189 and 190 of the Housing Act 1988 for there to be a defect their has to be something in the property going wrong, so for instance if a property doesnt have a damp course it isnt a S190 breach, just bad design, but if there is a damp course and it is defective then it is a valid repair.
These damp arguments go on and on….
If the damp damages the plaster, then the plaster becomes repairable following Grand v. Gill.
Also, often in condensation dampness cases, the expert I often instruct tends to put, if there’s any penetrating or other dampness, that the condensation may be exacerbated by this as it’s introducing more moisture into the premises.
Extensive mould damage doesn’t occur overnight – why hadn’t Kim noticed it before? Why was she happy with a ‘tiny’ amount of compensation before receiving the rude email if ‘hundreds/thousands’ pounds worth of damage had been caused? Doesn’t sound as though she has much of a case against the landlord to me.