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Huge cracks in walls

179 replies

LucyPowell77 · 16/07/2025 20:05

I'm looking for some advice on how to proceed with the situation I find myself in. There are cracks appearing all the wall and ceiling in my house. A few months ago I reported the cracks to my insurance company as possible subsidence. Based on the photos have sent to my insurance company they have ruled out subsidence. They have said the cracks are just cosmetic and to hire someone to repair the cracks myself. I really wish I could believe them, but the existing cracks keep getting bigger and new crack keep appearing. Today I put a tape measure in the biggest crack to see deep in went and it was 24 cm deep.
I can understand why the insurance say its not subsidence. There are no external cracks and most of the cracks are upstairs along the wall that joins to next doors. While it probably isn’t subsidence, I still think it is structural. Worst crack is now so wide that I can see that the bricks behind the plaster are also cracked.

I suspect the cracks are something to do with the renovation work my neighbours did a couple of years ago. My old neighbour died. He had not done any modernising to his home for a long time, so it probably needed a lot of work to bring it up to a modern standard. The new owners did a back to brick renovation along with putting a whole new roof on. The roofing work caused me a lot of issues at the time and I did raise my concerns with the roofer. The roofer did not like being questioned and became quite threatening towards me. Unfortunately, the roofer was a relation of the women who owns the house and that relationship turned sour too. I remember thinking at the time it was the strangest renovation I have ever seen. Other than the roofer no proper trades people worked on the house. The owner’s ‘contractor’ moved into house for about a year and did the rest of the work himself. I received no notice any work was going to done and no party wall agreement was issued. I am not a 100% sure if I should have received one or not. I don’t know if they should have issued one for the roof replacement. I suspect they may have removed an internal wall upstairs. The house used to be 3 bedrooms, but when it was rented out it was listed as 2 bedrooms. The cracks on walls are inline with what you would expect from a house suffering from roof spread. My house is a Victorian terrace and from what I understand they were only built to hold the weight of a traditional slate roof. I know my neighbours changed their roof from slate to something else, but I don’t know enough about roofing to identify what tiles they are. If the new tiles are heavier, they could have caused roof spread. I know they did not get any form of approval from the council for any of the work they had done. Also, I’ve noticed I seem to be able to hear a lot of what the tenants living next door are doing. I never heard the guy make a sound when he lived there.

So now I found myself in a situation where I have some very big very concerning cracks on my walls and ceiling, but my home insurance company are not interested at all. I suspect that it has something to do with work my neighbours have had done, but I’m not an expect so I could be wrong. I haven’t done any renovation or building work myself that could have caused structural issues. The situation is very stressful. The cracks on the ceiling in the smaller bedroom are now so bad that I am really concerned about how safe it is for my family to sleep in there. I feel out of my depth with this. My house feels unsafe, but it might be overreacting. The relationship with my neighbour is broken to the point we can’t have a friendly chat about this. If the issue is coming from her side than I would probably have to go down the legal route to recover costs. While I can’t ignore the damage I am scared of taking legal action against my neighbour. I fear there would be a backlash against me and things could get nasty. I need to establish for certain what’s causing the cracks. I thought my insurance company would at least send an accessor out to look at my house and tell me what the cause is, but they have refused to do that. A local surveyor has quoted me £1300 to assess my house and write a report for me. I can’t afford to spend that much, but I desperately need answers. Maybe I’m being suborn but I don’t think I should have to pay for a surveyor.

Has anyone else been in a similar situation? How did you get it resolved?

OP posts:
Thread gallery
12
LucyPowell77 · 16/07/2025 22:36

Fibrous · 16/07/2025 21:28

Who is your insurance company? I’m never going with them! Those are some serious looking cracks.

Admiral. I have attached a screem shot of one their emails regarding my cracks

Huge cracks in walls
Huge cracks in walls
OP posts:
LucyPowell77 · 16/07/2025 22:46

putitovertherefornow · 16/07/2025 21:15

Perhaps you could ask someone from building control at the local council to come out and have a look? I don't know if they normally would do such a thing, but if you point out that your neighbour's house has had a lot of structural building work done and you believe that they have caused structural damage to your home, they might decide to come and see what's happened.

Someone needs to go up in the loft asap to see if there's anything going on up there too, and I don't want to worry you, but where is your chimney stack?

Your insurance company, by the way, is fobbing you off in the hope that they will not have to pay a claim.

I went up into my loft today to have a look. I thought there might be evidence of cracking up there, but I couldn't see much. My house is a traditional terrace house, the kitchen and bathroom stick out the back. I don't know if all terrace houses are the same but mine has a main roof covering the 2 up to 2 down bit of the house and then another slightly lower roof covering the bathroom and kitchen. The worst crack is almost directly under the point where my main roof and the lower roof meet. I wonder if that part of the building takes more of the weight of roofs. Anyway, because it is lower, I can't get into it easily to see what is going on.

I know my neighbour removed a chimney stack but I think it was purely on their side.

OP posts:
HonestOpalHelper · 16/07/2025 22:46

LucyPowell77 · 16/07/2025 22:36

Admiral. I have attached a screem shot of one their emails regarding my cracks

Total nonsense, any part of a building can subside, true it usually is foundation defects but upper level walls can subside if their support fails.
The cracks would not be diagonal along a door frame as the corner forces the shear in a straight line. I can see the cracked brickwork in your picture behind the plaster work, that is not normal settlement.
From the architraves and door latch keeper I'm going to suggest your house is far from new, so settlement should have more or less finished years ago.

HonestOpalHelper · 16/07/2025 22:48

LucyPowell77 · 16/07/2025 22:46

I went up into my loft today to have a look. I thought there might be evidence of cracking up there, but I couldn't see much. My house is a traditional terrace house, the kitchen and bathroom stick out the back. I don't know if all terrace houses are the same but mine has a main roof covering the 2 up to 2 down bit of the house and then another slightly lower roof covering the bathroom and kitchen. The worst crack is almost directly under the point where my main roof and the lower roof meet. I wonder if that part of the building takes more of the weight of roofs. Anyway, because it is lower, I can't get into it easily to see what is going on.

I know my neighbour removed a chimney stack but I think it was purely on their side.

Ah, ha, that's your answer, no it could easily have de-stabilised the wall - depends what they took out and what they left behind, could be a lot of brickwork, say in the loft sitting on nothing but pulling on your wall.

LucyPowell77 · 16/07/2025 22:50

putitovertherefornow · 16/07/2025 21:15

Perhaps you could ask someone from building control at the local council to come out and have a look? I don't know if they normally would do such a thing, but if you point out that your neighbour's house has had a lot of structural building work done and you believe that they have caused structural damage to your home, they might decide to come and see what's happened.

Someone needs to go up in the loft asap to see if there's anything going on up there too, and I don't want to worry you, but where is your chimney stack?

Your insurance company, by the way, is fobbing you off in the hope that they will not have to pay a claim.

I know they are fobbing me off. I have really tired to argue my point with them. I've spent a lot of time reseaching on the internet for information regarding these cracks. During one phone with Admiral the guy I was talking to told me I shouldn't trust what I read on the internet and I didn't know what I was talking about.

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Wimbledonmum1985 · 16/07/2025 22:52

Good god. I was reading your first pit thinking surely to god you’re overreacting but this is a shocker. You need to take decisive action immediately. Do you have a partner or family to support you? Must be very stressful for you.

HonestOpalHelper · 16/07/2025 22:52

Calling building control is a good call from the PP, as this is likely a result of your neighbours work they can get access to check in there on compliance grounds.

I'm 99% without seeing it, from what you describe that they have messed up a chimney removal, the chimney breast is structural in many terraces, and needs steels / gallows brackets installing when its removed to bear the load increased on the remaining wall. Bear in mind that when built, no one would have foreseen any circumstances where the fireplaces / chimneys would ever be removed.

LucyPowell77 · 16/07/2025 22:52

HonestOpalHelper · 16/07/2025 22:46

Total nonsense, any part of a building can subside, true it usually is foundation defects but upper level walls can subside if their support fails.
The cracks would not be diagonal along a door frame as the corner forces the shear in a straight line. I can see the cracked brickwork in your picture behind the plaster work, that is not normal settlement.
From the architraves and door latch keeper I'm going to suggest your house is far from new, so settlement should have more or less finished years ago.

My house is over a hundred years old. I bought the house over 10 years ago and i've only recently had issues.

OP posts:
INeedAnotherName · 16/07/2025 22:54

If I'm reading between the lines on their responses correctly they are saying the cracks aren't due to subsidence. They are being weasels by focusing on that one word and not focusing on the actual problem ie you are having large and multiple cracks appearing which could be caused by multiple reasons.

Get a structural engineer in, contact the council to see if they can help based on the neighbours doing dubious renovations, contact either Admiral's complaints department and maybe escalate it up to the ombudsman (I think you have to complain to Admiral first). This is definitely one for Citizens Advice though if only to use one of their template letters. Good luck.

TizerorFizz · 16/07/2025 22:58

@LucyPowell77 I agree with pp who has said get a structural engineer to report on this. A surveyor will defer to them anyway as the SE is the fully qualified person here. Forget about a builder.

I think this could be heave. That’s where the cracks are vertical and these are. So this could be clay that’s got too much water in it and it’s expanding upwards. It’s slightly odd that there are no external cracks but you need to get this looked at because it’s certainly being caused by something! Your insurance company is obviously trying to avoid liability and you need a strongly worded report from a Structural Engineer to boot them up the backside.

LucyPowell77 · 16/07/2025 22:58

WonderingWanda · 16/07/2025 21:41

Crikey, I cannot believe your insurance company are trying to fob you off. Absolutely get a structural engineer out and also file a complaint to your insurance company. It looks very much like your neighbour has done something to remove structural support. Or there is subsidence but it's under the party wall. Do you live in an area with mine shafts?

I did look into the possibility of mine shafts, there is nothing near by.

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LucyPowell77 · 16/07/2025 23:00

theduchessoftintagel · 16/07/2025 21:38

You don't need to be a structural engineer to see they're not cosmetic cracks in the plaster! I think the advice to get it assessed asap is correct, if the engineer thinks it needs urgent action you have something solid to get your insurance company acting asap and you could potentially try to claim the cost back through a complaint assuming they do think it's as severe as it looks.

I think my insurance company are trying to play me for stupid.

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thebigyearahead · 16/07/2025 23:00

That’s very alarming. I would be asking for a structural engineers report, then send it to Admiral stating that it’s definitely not cosmetic and please can they arrange for repairs to be done asap

LucyPowell77 · 16/07/2025 23:01

herbalteabag · 16/07/2025 21:49

What are these walls made of? Are they brick or are they partition walls?

These cracks are on the party wall and its made out of brick.

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HonestOpalHelper · 16/07/2025 23:04

Putting my construction hard hat on there is a lot of confusion as to the roles of professionals in our field, a Structural Surveyor is a cut above a normal house surveyor and the correct professional for this task, they are highly skilled at diagnosing flaws in existing structures. Structural Engineers generally deal with new structures or modifications to existing ones - BUT, as the likely cause is flawed building works next door you need the Building Inspector from the LABC as they can gain access to look at what's driving the issue.

Having worked with Building Inspectors for 20 years I can say for certain they will be able to not only diagnose the problem, but also enforce remediation - and if its caused by next door Admiral and next doors insurers can have a high old time playing loss adjustment games!

beetr00 · 16/07/2025 23:06

LucyPowell77 · 16/07/2025 22:52

My house is over a hundred years old. I bought the house over 10 years ago and i've only recently had issues.

unsurprised that you're in a victorian era house @LucyPowell77

I wouldn't be concerned personally but as you are, have a builder come round for reassurance then submit his quote to Admiral?

LucyPowell77 · 16/07/2025 23:07

HonestOpalHelper · 16/07/2025 22:01

I'm in the building trade OP, those are certainly structural cracks, the pattern screams subsidence, one section shearing down and away from the other. (note that means the section of wall subsiding, not necessarily the house foundation, for example due to a failed joist or lintel)

First port of call should be a good structural surveyor, they will be able to ascertain what is causing the movement, then a builder to act on their report and put in place temporary supports - your insurance should be sorting this. A good, competent builder would be able to diagnose and repair, but as you need to go through insurance you need to follow the protocol.

My concern would be it reaching tipping point and collapsing, when these things go, they just go.

As to cause, could be a vast number of things, some collapsing structure under the house (mining / tunnelling), some other work done incorrectly (for example replacing metal framed windows with uPVC, commonly no lintel was used with steel frames as they supported the bricks above), a load bearing timber failing due to rot or worm. It could be very simple, or very complex.

Edited

Before my neighbours started work on the house there had been no modernising done for a long long time. I don't think there was a central heating system. Also, all the windows had wooden frames. I have not been inside the house since it changed ownership, so I don't know exactly what work was done. But it took them around a year to complete and was very loud a lot of the time.

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WhatMe123 · 16/07/2025 23:08

I'm not a structural engineer but that's not a normal plaster crack. Did the insurance send anyone out? If it's getting bigger you need a structural engineer to take a look

LucyPowell77 · 16/07/2025 23:20

Wimbledonmum1985 · 16/07/2025 22:52

Good god. I was reading your first pit thinking surely to god you’re overreacting but this is a shocker. You need to take decisive action immediately. Do you have a partner or family to support you? Must be very stressful for you.

I have a boyfriend. I love him to bits, but unfortunately, he has not been a great support with this. He thinks I should just accept what the insurance company have told me. He says they are the experts at this stuff, if they say it’s just cosmetic they must be right.

My mum has been amazing, but she has not been very well recently, and I worry what the stress of seeing me go through this is doing to her. My dad died a long time ago. I really wish he was still here, he would know what to do. He was a carpenter when he was young and he really knew how building worked. I know I was probably very naive when all this started. I was lucky enough to buy my house when I was fairly young.

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TizerorFizz · 16/07/2025 23:24

@HonestOpalHelper DH is a structural engineer. Structural engineers deal with problems in existing structures all the time. Yes, it might be caused by next door but that’s not certain.

Also there’s no specific qualification for a person you call a Structural Surveyor. RICS is 2 years relevant work post grad. No Masters degree and no further challenging exams. They are just a surveyor who sees more damaged properties. As DH is FIStructE people seem to think he understands structures and has acted for many clients with damaged properties where insurance companies are arguing black is white.

A building inspector isn’t a qualified structural engineer either. Obviously building control can be asked about work next door but you might be waiting a long time for any action. Often a local authority has a contract with an external provider and poor service and lack of oversight is common.

@LucyPowell77 Do you have any pictures of the outside? Walls? Windows? Your roof? Their roof? Are you a gable end? Have any large trees been felled?

LucyPowell77 · 16/07/2025 23:32

JustPinkFinch · 16/07/2025 22:07

Another one wanting to know who your insurer is so I can avoid them like the plague. I believe there is an ombudsman you can can complain to, but it's a slow process:

www.financial-ombudsman.org.uk/consumers/complaints-can-help/insurance

Sorry this is happening, it must be extremely stressful. I know it's a lot of money, but get a structural engineer out now (a bog standard surveyor may not be the right person - you need someone more specialist), find out what's going on, with a view to claiming the costs back from either the neighbour or your insurer in the future.

I'd also make a friendly call to building control at the council tomorrow and take their advice too. Catch them on a good day, they may even come round.

You said there are tenants next door? So not the people you've actually fallen out with? I'd go round and look from their side. At the very least chat with them and see if they are experiencing issues.

Final thing to think about is calling the legal cover helpline (if your home insurance has it) for advice.

I did think of calling the council about this, but then I worried they would think I was just trying to cause trouble. Regarding the tenants, there was a lovely young family living there, but they suddenly moved out a couple of months ago. There is someone living there now, but I think it’s another one of the owner’s contractors. Also there seems to be different people living there on different days. I've seen roofer relative around doing the garden recently too. To be honest I really would not feel comfortable approaching the tenant about the cracks. I think the owner cut every corner possible when doing the renovation and now there are repairs that need to be made to get it ready for the next lot of proper tenants.

OP posts:
LucyPowell77 · 16/07/2025 23:34

JustPinkFinch · 16/07/2025 22:07

Another one wanting to know who your insurer is so I can avoid them like the plague. I believe there is an ombudsman you can can complain to, but it's a slow process:

www.financial-ombudsman.org.uk/consumers/complaints-can-help/insurance

Sorry this is happening, it must be extremely stressful. I know it's a lot of money, but get a structural engineer out now (a bog standard surveyor may not be the right person - you need someone more specialist), find out what's going on, with a view to claiming the costs back from either the neighbour or your insurer in the future.

I'd also make a friendly call to building control at the council tomorrow and take their advice too. Catch them on a good day, they may even come round.

You said there are tenants next door? So not the people you've actually fallen out with? I'd go round and look from their side. At the very least chat with them and see if they are experiencing issues.

Final thing to think about is calling the legal cover helpline (if your home insurance has it) for advice.

I do have legal cover with my insurance, but I was told there no history of anyone ever making a successful claim against a neighbour for something like this. My insurance is with Admiral.

OP posts:
HonestOpalHelper · 16/07/2025 23:35

TizerorFizz · 16/07/2025 23:24

@HonestOpalHelper DH is a structural engineer. Structural engineers deal with problems in existing structures all the time. Yes, it might be caused by next door but that’s not certain.

Also there’s no specific qualification for a person you call a Structural Surveyor. RICS is 2 years relevant work post grad. No Masters degree and no further challenging exams. They are just a surveyor who sees more damaged properties. As DH is FIStructE people seem to think he understands structures and has acted for many clients with damaged properties where insurance companies are arguing black is white.

A building inspector isn’t a qualified structural engineer either. Obviously building control can be asked about work next door but you might be waiting a long time for any action. Often a local authority has a contract with an external provider and poor service and lack of oversight is common.

@LucyPowell77 Do you have any pictures of the outside? Walls? Windows? Your roof? Their roof? Are you a gable end? Have any large trees been felled?

The building inspector is the best first port of call, they have four points in their favour, 1/. many are time served builders who have forgotten more about building that many office wallers ever knew, 2/. they have the right to demand access to check next door, 3/. they have the authority to enforce, 4/. they are free.

OP call LABC, tell them that since works were carried out next door this has happened and that you are very concerned about the structural integrity of your house, chances are they will have an inspector out within a few days.

If they suspect next door is the cause, they have a whole army of professionals that they can call upon, and they can demand that your neighbour puts it right.

A house stands for 100+ years with no issues, then a major alteration is made to the other side of this wall and it opens up, as I say 99% that's the issue, but you will need LABC to enforce what needs sorting next door if that is the case.

ReadingSoManyThreads · 16/07/2025 23:37

Just looking at that, I thought "bet the neighbour removed a chimney stack", and sure enough, later you wrote you think they had. Definitely get a Structural Engineer around, call building control, and you'll likely need to go through the next door's building insurance to claim and rectify their shoddy works.

LucyPowell77 · 16/07/2025 23:38

HonestOpalHelper · 16/07/2025 22:52

Calling building control is a good call from the PP, as this is likely a result of your neighbours work they can get access to check in there on compliance grounds.

I'm 99% without seeing it, from what you describe that they have messed up a chimney removal, the chimney breast is structural in many terraces, and needs steels / gallows brackets installing when its removed to bear the load increased on the remaining wall. Bear in mind that when built, no one would have foreseen any circumstances where the fireplaces / chimneys would ever be removed.

Edited

I never thought of that. They definitely removed a chimney.

OP posts: