"The launch of free valuations strengthens our proposition within our intermediary exclusive purchase range."
NatWest is also offering up to £500 cashback through certain products when remortgaging through a broker.
On the Bank's core range, residential products will see rate reductions of up to 15bps and £250 cashback is available on two-year 95% LTV and shared equity products.
Remortgage rates will rise by up to 11bps but £250 cashback has been added to a range of two-year mortgages.
For buy-to-let, five-year rates will see rate cuts of up to 9bps with £250 cashback available on remortgage products at 70% LTV.
Mark Bullard, head of sales at NatWest, said: “The launch of free valuations strengthens our proposition within our intermediary exclusive purchase range. Along with this, we are now able to strengthen our remortgage proposition by offering a cashback incentive to complement our current existing free legals and valuation features.”