Yet just one day later, in thick fog, Westminster herself collided with the V-class destroyer Verulam and needed extensive repair.

Westminster joined the Rosyth Escort Force in January, and deployed with them until April, when she transferred to the Dover Command to support military activities and cover convoys in the English Channel.

Her crew remained continuously at action stations for four days at a time and the ship successfully fought off air attacks, without any casualties until 15 May.

She returned to active duty in June and for the rest of the war, she served with the Rosyth Escort Force protecting important shipping convoys in home waters.

Westminster engaged E-boats of the 2nd German Flotilla on 12 October, in company with the destroyers Wolsey and Cotswold whilst defending convoy FN-31 as it sailed off the Norfolk coast.

After the end of the war Westminster was briefly employed as a destroyer courier to Norway, but was withdrawn from operational service and paid-off by mid June.