My wife was made redundant whilst on maternity leave. It hasn't really caused us an immediate problem, becuase we had savings to cover the period she was to be off of work anyway whilst having the baby. However, our mortgage comes up for renewal in March and my income alone isn't enough to renegotiate. Our house is worth around £500K, my salary £45K and we need to borrow £270K. My wife earns over £50K usually and has already had some job offers, but isn't ready to return to work yet (youngest is only 5 months old).
What are our options? If we just stay with our current provider and go onto their standard variable rate, will they still require proof of income?

I should add that we have around £30 in savings, so no immediate problem with repayments etc.

....That should have read '£30k' in savings.