Should I be a guarantor for my sons mortgage?

Very good advice from you all as expected, thank you so much. ??? yes he is self-employed and does have a partner but she doesn’t work at the moment because their child is still quite small. I love the bit you said at the end about Red Adair!! My thinking is that my son would be able to afford the mortgage payments he’s been a bricky for 16 years and is very very good at his job it was just the fact that if my house was put up a security then he might be able to borrow more. I do realise it is a can of worms and would think very carefully about it before actually doing it would have to go to a solicitor as well I imagine and I have two other children to consider so certainly not straightforward ?‍♀️

I thought being a guarantor meant you would agree to pay the mortgage if your son defaulted for any reason, is that what you mean Shinamae? Could you afford that out of your own income?
But you seem to be implying that you being a guarantor would mean he could borrow more moneyNot sure if that’s the case.
If he’s a brickie I would think his employment is guaranteed. We found out the other day that a local builder who we were thinking of getting a quote from is booked up for the next two years!
You don’t say if your son is self-employed or has a partner or if you have other children - all these would have some bearing I think.

As ever - get professional advice from a solicitor or IFA.
In the words of Red Adair - if you think it’s expensive to hire a professional, wait till you hire an amateur

If that’s the normal price in his area he needs to look at another area you can get practically get a small hotel for that price in my area I m not making light of it but that might be his answer

You know I’m going to say don’t do it!

Two things.

Most of us had to buy less than we wanted when we made our first purchase. What he can afford won’t be his forever home. If he’s in construction something that needs work but will sell well when it’s done?

Or consider a joint borrowing mortgage? That way your can add your borrowing power but it is his name on the deeds so you don’t pay the second home tax. He makes all the repayments. Worth considering?

I'm with hazel93. I suspect you are too. It's a kind and understandable thought though. Is there any other way you could help out?

Your feeling is right ! A bag of worms never to be opened in my view.
Fair enough to give your children a leg up if you can afford it from savings etc .but not to put your own property at risk.
There lies madness. Well, you did ask !