The Premiership's bottom two clubs met at Sixways but it was the Warriors who dominated, with Jack Adams' first-half brace propelling his side to a third win in four matches.
13 points from the boot of captain Chris Pennell also helped Gold's men, as they moved 10 points clear of the Exiles in the battle against the drop.
The South African coach was full of praise for his players after the match, however, he insists they cannot take anything for granted, particularly their Premiership status.
He told BBC Hereford & Worcester: "The end result was critically important. To use a golfing term, it's a two-shot swing for us, but the overall performance wasn't very good.
"Josh Adams took his two tries very well. And it was a relief to come away with four points and deny Irish from getting a point.
"But this fight is not over yet. Knowing Nick Kennedy and the London Irish boys as I do, they're never going to give up the fight so we need to learn some lessons from this. We need to improve as I think Irish will improve."