Chairman Colin Squire and deputy chairman Sarah Squire officially opened Squire's Chertsey Garden Centre on 1 March with the local mayor. Manager is Matt Tanner.
The old centre previously had no catering and is the smallest of Squire's 15 centres.
The £1.5m revamp should lead to a doubling of turnover, at least, said group operations manager Andy Bunt.
Squire's Hersham branch relaunches on 17 March after a £1m refit and redesign including a 25% expansion and bigger cafe.
Woking, which has planning permission for a redevelopment, could follow in 2018.
Long Ditton was refreshed in 2016.
Squire's plans to invest in its cafes over the next three or four years, with Hersham a template for revamps.
Managing director Martin Breddy said the half year to the end of January 2017 had seen "solid growth".
Breddy said he was encouraged by footfall rising after being "flattish for a while" and by core gardening doing well, with hardy nursery stock and gardening sundries strong on autumn 2016 and with indications for spring 2017 "quite encouraging".
He said investment in cafes would cater for a "broad customer base. We want to cater for everyone".
Colin Squire said Squire's remains "very much a family business".