The victory was a fifth in 10 home league games for Mason’s side, while they have lost eight of their 11 games on the road.
Successive reverses at QPR and Southampton meant the rookie boss came into this game under pressure for a result, which, ultimately, they picked up with something to spare.
It was the Blades, who made six changes from the 1-1 draw with Norwich on Tuesday, who looked the most likely for the majority of the first half with Hamer’s rifled effort drawing a quality save from Wildsmith and Patrick Bamford failing to make the most of a decent opportunity after lax Albion play at the back.
Heggebo missed a good chance to put the hosts in front just before the break when he miscued but the Norway international quickly made amends.
The in-form 24-year-old striker was involved in the build up to the goal with some good forward play to get the ball out wide to Campbell down the right and he did not have to break stride to convert the American’s low cross.
With his side suddenly looking off the pace, Wilder quickly made two changes but it was 2-0 moments later.
Grant got his first of the campaign in Tuesday’s 3-2 loss at Southampton and made it two in two with a blistering 18-yard strike.
Complaints from McGuinness that he was tripped by Grant fell on deaf ears and thereafter the lacklustre Blades never threatened to get back into the match and West Brom looked capable of adding further gloss to the scoreline.
