The grocer has earmarked £50m towards the programme, which will begin with its Long Eaton store in Nottingham as the first of 170 stores to be updated by the end of November.
As part of the initiative, 50 larger Asda stores will receive “major upgrades, including the introduction of new in-store services and features” such as new George departments, new foyers, seasonal aisles, food-to-go services, counters and new flooring and lighting.
The remaining 120 stores will have their interiors and exteriors “freshened” to reflect Asda’s new brand identity and will also receive new trolley bays, signage, toilet facilities and exterior landscaping work.
Asda said work will take place on each store “over a five-week period” but all stores will remain open during that time.
Asda senior director of construction and implementation Ian Brackenbury said: “We are always looking at ways in which we can improve the overall experience for our customers and this programme is one of the many ways we are actively doing that.
“Starting with our supermarkets and superstores, this significant investment allows us to upgrade our stores by launching new and exciting services while making significant improvements to the existing components of our established stores.
“This programme marks another exciting milestone moment for us on our journey and underpins our continued commitment to ensuring Asda is set up for long-term success.”