Ask an Property Solicitor. Get an Answer ASAP.
Did you view the property prior to moving in?
Your Landlord is responsible for repair works. If your Landlord refuses to do the repairs, you can complain to your local council who have special powers to take action against Landlords for such types of issues. Please see below link with helpful guidance on reporting problems to environmental health of your local council:
The only way that this would be possible is by mutual agreement with your Landlord/agents or via a break clause in the tenancy agreement.
I would suggest that you negotiate an end to your contract. Here is some helpful guidance on how to approach your Landlord/agents:
If you move out without notifying the Landlord/agent, you could be pursued for rent as you will be liable for the fixed term.
Is there anything else?
You do have legal remedies available to you however it appears you do not wish to go down this path.
No, I completely understand your situation.
Can I help with anything else?
I think you should complain to your local council.
You are entitled to this as your Landlord is responsible for any repair works to the property.
Is there anything else I can help with?
Well you stated about that you "don't want to get involved in a fight with them". I have given you your options and apologies if this is not what you wanted to hear but this is the case.
As I mentioned, you do have legal remedies that you may pursue but this is entirely your choice.
and I gave you the answer...
I am not sure what else you require?
Do you require any further assistance? Otherwise I can mark this question as completed.