The firm said it had boosted revenue by gaining market share from rivals and the increasing cost of building supplies.
Travis added another 14 branches during the period bringing its total network to 1827.
Turnover in the merchanting division was up 11.1% while DIY specialist Wickes saw weaker growth.
Geoff Cooper, chief executive, said: "After strong early progress against weak weather related comparatives, we are pleased with the overall progress the Group has made in the first four months of this year.
"Current trading is in line with management expectations with the benefit of strong sales performance balancing a slightly lower gross margin in merchanting.
"We continue to take market share against a tough market backdrop, confirming the sustainable strength of our organic growth strategy. Our more positive merchanting and BSS performance is more than balancing the effect of a challenging consumer environment for our retail business," he said.