BUZZ-Keller: Co warns of slow start to year

** Keller Group Plc (LSE: KLR.L - news) 's stock drops 3.8 pct & 2nd largest loser on FTSE-250 after the ground engineering contractor says both revenue and profit in the four months to April are behind last year

** Co says slow start due to previous flagged decrease in Australia, delays on certain major projects and the heavy snowfall in North America for an extended period

** "Although it has been a slow start to FY15 and profits are therefore set to be more H2 weighted than normal, order book momentum implies that FY15 expectations will be achieved," Investec (LSE: INVP.L - news) analyst Andrew Gibb writes in a note

** Co, which lays foundations for infrastructure and industrial projects, says FY results will be in line with market expectations, although more H2 weighted than normal

** Shares (Frankfurt: DI6.F - news) have gained 17 pct YTD (RM (LSE: RM.L - news) : esha.vaish.thomsonreuters.com@reuters.net)