Need advice on Landlord's responsibility

[LoveSatsumas]

My son has just moved in to his first rental property. On the first day of living there they discovered the door connecting house to garage won't open. There's a key stuck in the lock and no matter what he does, it won't unlock.
Son has contacted agent to ask if the landlord could arrange to have the lock sorted. Agent claims landlord is in self isolation and will not give permission for anyone to fix it. He, apparently, insists on doing all maintenance himself.
My son accepted this but I said the landlord should get it sorted.
Any advice would be greatly appreciated as neither of us have experience with rented properties.

Not a priority and not fair to expect the landlord or employed handyman to enter a property and put themselves at risk over something like that.

Essential repairs only

This is not classed as an urgent repair so can left until after lockdown ends. I work with new build defects and house builders only attend to urgent repairs during lockdown ie leaks, no heating etc.

Presuming your son still has access to the garage via the outside garage door then it’s not that much of an inconvenience. Whoever carries out the work, the sensible thing is to wait until after lockdown ends for it to be fixed. However, your son can’t access the garage at all then that would be different, as a landlord I’d probably give my tenant the option of a locksmith (if they could maintain social distancing/could find one happy to come out) or a slight rent reduction.

Absolutely agree with PPs.

I assume DS can access the garage via the garage door? From outside. This is in no way an urgent repair.

Totally reasonable for it to wait until things go back to normal.

Thank you for all the replies.
I have rang my son and told him to wait until this lockdown is over.
I'm sure the landlord will then get it sorted.
It's just a petty inconvenience mixed with an anxious mother. It's his first place alone and I've been worried sick. He's miles away.
Thank you all, again.

Spray WD40 into the lock if he has some.

He can very probably fix this himself

Sounds like your son needs to read his how to rent guide, and so do you.

this is landlord responsibility but at the moment (England) landlords are being told not to do non-urgent repairs.

but if it is a gas or electric problem, unless the landlord is qualified he cannot do those repairs himself. As I said, get informed as my bullshit detector is going off.