By Elliot Gulliver-Needham Home improvement firm Wickes reported it had returned to growth over the summer today but warned its sales were likely to wane as pent up DIY demand eases in the coming months. The London-listed retailer reported a 2.1 per cent growth in revenue, or 0.4 per cent on like-for-like metrics, with retail revenue growing by 4.7 per cent. Group revenue had contracted 3.6 per cent in the previous three months. Bosses said sales in its design and installation business had stabilised despite “challenging conditions”, with a 13.3 per cent slide on the same period last year. The…