Who is responsible for settlement cracks after recent work?

We've had some work done on the house downstairs recently, essentially converted the whole thing to open plan. Looks great and I thought the builder was good and reputable. But now we've got some cracks upstairs and people are telling me it could be because the builder did a bad job? Can anyone who does this kind of thing for a living lay it out for me? Could this be a normal thing, or should I get in touch with insurance about something like this?

Asked by Cheryl on 11th Feb 2026
Expert Trade Answers
"You can end up with some settling and movement cracks after a build if you have moved walls or placed steels.
It doesn't mean you've had a bad builder at all.
Normal rule of thumb is if the crack is big enough to get a Bic biro in, then ask your builder to come back and take a look, anything smaller I would just fill and re-paint.
Some times settling and cracking can appear up to 2 years after the work took place."
Answered on 11th Feb 2026 - Member since Feb 2026 - report
"I think the company that performed the repairs should be responsible for this."
Answered on 11th Feb 2026 - Member since Jan 2024 - report
"Hi I can’t comment on the builder you used, but settlement cracks are a very normal part of the process and can normally but sorted when decorating if there has been any structural movement when the job was done again this can happen but the builder should sort that out once the steel is in place an fully packed an built up to carry the weight of the back of the house this is all accurate as long as the correct steels have been used as per the structural calculations hope this helps"
Answered on 11th Feb 2026 - Member since Jul 2024 - report
Find Tradespeople, compare up to 3 quotes!
It's FREE and there are no obligations
Ask a Trade
Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.
Ask your question
Ask a Trade

Are you looking for advice on a DIY project or have a question for our tradespeople?

We'll email your question to tradespeople who are skilled in your chosen category.

Your question will be made public - please do not include any personal details.

{{ first(ask.errors)[0] }}

By continuing you agree to the Community Guidelines.

Report Content

{{ first(reportForm.errors) }}

Thank you

Your report has been created and will be investigated shortly.

Ready to get a price for your home improvement project?
Get started

Over 1 million homeowners and over 50,000 tradespeople
use MyJobQuote nationwide each year