damp

Hello DIYnotters! Got a few questions regarding damp but some useful info beforehand: Property is end terraced, built around 1990, in Swansea, no subsidence/coal mining nearby and lastly - the house has ventilation grills that cover holes drilled through to the exterior of the building in...

I have recently bought this house and there is some damp coming through the new plaster at one side of the bay on the inside. Pics below of inside and out. I don’t know where to start with it- the most obvious is the lack of adequate drainage from the main drain from the roof but could it also...

We have a ground floor extension with a flat roof. There is a damp area in the corner. The ceiling use to be wet but we had this fixed and so the ceiling is never wet anymore.The damp never gets any worse even in heavy rain but also doesn’t dry out. The Celcon bricks are exposed at present so we...

Hi all, Thanks in advance for any help / advise it is all greatly appreciated. I appear to have damp in the upstairs chimney breast. The chimney has been removed from the roof and is open in the loft as is the fire place in the bedroom. This is an outside wall. I've had a roofer check the...

We had this downstairs toilet room fitted 4 years ago. No problems until now, and no other damp anywhere, just this patch that’s between the toilet pipe and the sink unit. Who should I call? Damp specialists want a lot of money for a full survey, so should I call a plumber first? my guess is...

A gallon of Sikha, spread in 2 coats (5x4m room). Regs told me to run a membrane along the base of and up the inside of the blockwork wall before the stud went on. Am putting down a CLS plus 18mm ply substrate, then 8mm click vinyl. Do I really need to continue the membrane across the whole...

Hi all, From the pictures you may be able to see that I had heavily damaged plaster and a damp patch on the right hand side of my wall. After investigation, it was realised that poor guttering had led to water contact with the brick and it had eroded the external brickwork. This was then...

Hi, My cellar, which has always been a little damp seems to have got much worse over the past few months. During some really bad rain I could actually see it seeping through the walls and pooling up on the floor. I've had the guttering cleared as there was some overspill at the time. I was...

Would be really grateful for any advice on this. So, I moved into a top floor flat in a 1960s flat-roofed block in March. The photos are of a crack in the bedroom. It runs from the window horizontally, along an external wall, then round the corner along the wall with the stairwell. From the...

I'm currently suffering with an external damp issue which is being caused by a concrete slope which runs parallel to some stairs. (see attached photo). Everytime it rains, rainwater runs down the slope and into the wall. It seems as though the previous owners had tried to remedy it by applying...

Hi all, I've moved into a property that has significant damp marks at the front of the house (see pictures attached). I knew about this before moving in but am slightly lost as to what the best course of action is. There is a large carpeted cement step that is raised from the ground and then...

We have just had an extension built and have noticed that our next door neighbours have quite bad damp (albeit under their dpc) however our corner that touches theirs is now becoming damp. Looking at the images our dpc is visible and then disappears closer to their wall. Should this be exposed...

We have some salt and clear tide marks. Could this be penetrating damp?

Morning all, I recently moved into a new flat and today I noticed some round spots on my bedroom wall, which I believe was recently painted - some of them are slightly raised (see attached picture). Any idea what they are? Please let me know if you need more info. Thank you!

We have a builder who has added a damp proof course and then added bricks on top. Should the bricks above be fixed in place or be able to move? At present the whole wall moves at the slightest touch above the damp proof course. It is not complete, but we don't feel this is right. We are talking...

Hi, We have damp issues on the inside of our bedroom walls. As you can see, it is primarily located around our window areas. The walls have been built using breeze blocks. Could anyone advise a course of action that a layman such as me could administer to correct the problem or do I need to...

Hi all, I've attached a few pictures of a damp line that has appeared in out loft room. It bled through in the course of heavy wind and rain a few weeks ago, but there is ample evidence of the wall having had issues with damp before. The house is med terrace. The damp itself roughly follows...

Hello. I'm about to convert my garage into a habitable space (not moved in yet, but have exchanged contracts). It’s a single skin thermalite block construction, and rendered on the outside, plastered on the inside. The main issues will be solving a small patch of damp (see photo) and sorting...