mould

I have a south-facing back bedroom that has developed a couple of problems that may or may not be connected. A small stain has appeared on the ceiling a couple of feet from the external wall. There is some staining in the same area between the coving and the wall. Above this are solar panels...

Hi, We are doing the final parts of our renovation and unfortunately had a leak in a stud wall due to a faulty join that we think went overnight the first night the boiler was left on. It has left the patches of wet you see here, so have had to strip everything out and am getting some equipment...

Hi folks, I have a walk-in shower cabinet in my bathroom. It was installed around eight years ago and I have a black mould problem. I am happy to pay someone to reseal the shower cabinet but I'm not sure what this is going to involve. The mould has gotten down into the glass panel mountings...

We installed some wall slats 2 years ago, the type which is MDF slats on black felt backing. The front of the MDF is faux wood and the sides are exposed black MDF. After a few months we noticed mould growing on the sides of the slats. The room is high and can occasionally be cold but we don’t...

We live in a 1930s house and have a walk-in shower in the bathroom with a double window. The current extractor fan is installed on the wall adjacent to the shower, and we usually keep the window open while showering. Despite this, we experience a lot of condensation, which has led to mould...

Hi there, I was looking for some advice on a project I’m working on. I’ve lifted some of the floorboards up in our living room to insulate between the joists (1930s semi detached). However, we found a fair bit of standing water under there, which is due to an overflowing drain that is being...

I live in an 1860s cottage, we have a porch extension built around 30 years ago, which has a ventilation issue resulting is a buildup of mould and general damp feeling throughout the winter. I'm about to renovate the porch and part of this will be looking at installing some kind of ventilation...

We had a garage conversion recently done (6 months ago). Mould has formed on only one small bit of (non painted) skirting in the internal entrance door area. There was a small bookcase against this skirting. There is an electric radiator in the garage conversation, whereas the house has a...

I have a subfloor void in a room which has a unused fireplace of a 1930s semi in the north west of england. There is lots of white deposit on the subfloor void and when I dig the floor the ground is like clay. Is this deposit mould or salts? I cant see any on the underside of the floorboards its...

I’ve been dealing with cold walls in a couple of bedrooms due to having two external walls, which causes cold areas and has led to issues with condensation and mould. This is something I’ve always experienced with the property, even after living here for over 10 years. I’ve involved the council...

My combi boiler is attached to an adjoining wall, with the flue, overflow etc going out the external wall. We noticed a damp/foisty smell in the cupboards and when I went investigating, found that the wall in which the boiler is attached to had a damp patch below it and white mould. All the...

I'm ideally looking for reassurance my own non-invasive investigations have reached a conclusion that makes sense before I engage a professional. And I'm looking for guidance as to who that professional should be - I'm obviously thinking Plumber right now. I have a bathroom with toilet, sink...

The hallway subfloor seems to get damp, especially if it's been raining heavily outside. Do you think it would be a sensible solution to apply slurry to this floor, and the walls below the floorboard level to prevent this? I don't want to make a mistake before putting the floorboards back down...

I moved into a house that had a hidden leak. I stopped the leak and replaced the affected floor joists and boards. Months later the smell remains, but there are no visible signs of concern. Is this normal? Do I need to treat surrounding wood to prevent smell? What's going on?

There was a hidden leak under my suspended timber floor. The timbers developed wet rot and the surrounding space became mouldy. The area has now been replaced with fresh timber joists, and the leak has been fixed. I'm concerned that mould could occur again. What is the best wood treatment to...

Living room has a 3m long freezing cold external wall, brick with zero insulation. It’s free of windows, doors, and power outlets, a completely blank wall except massive new split system installed up high. I don’t want to move the slit system. I’m thinking about building a half-height “wall”...

Hi there, I recently had some night storage heaters removed and while sanding to prepare the wall where the heater was for painting, this pink stuff appeared where I had sanded (white bits are filler). Anyone know what it could be? It seems slightly more pink than the plaster, but has been...

We’ve just had a new house professionally remediated for mould. We’ll need new ceilings ( = plastering) and parts of the walls need to be plastered. We’ve been advised to look at plaster bonding other than gypsum bonding, since this can apparently attract moisture. What type of plaster bonding...

So I live in an end terrace house. We have these damp patches in the back bedroom upstairs mainly on the gable end wall. We had the roof replaced around 2 years ago thinking that was the problem but it hasn't solved it. We are planning to have the gable end painted with a silicone breathable...

Hi Everyone, Recently when going into my loft to change the bathroom fan, I noticed that there was a huge amount of damp and black mould on around half of the timbers. I also noticed a smaller spot of what I think is white mould on one rafter and the felt around it. After investigating I found...