@StonehamPark should consider putting his spare money is a cash ISA, Virgin are doing about 5% for 2 years. Make little sense paying off when rates are 1.9%, the cash is locked up and you can get a better return elsewhere.
We still have a Labour shortage which is helping make inflation embedded. Who knows where things will peak, 4.5% base is already priced into 5 year fixes.
Mortgages deals of 2's and 3's are now ancient history. Affordability back to the early 90's for first time buyers.