Sister firms T-Mobile and Orange are aiming to increase consumer choice and customer service levels by opening six dual-branded stores.
The mobile broadband providers, which joined forces this year to create Everything Everywhere, will open new high street outlets in Tooting, Palmers Green, Hertford, Bridgend, Weston-Super-Mare and Dorchester this week.
Within the three T-Mobile stores, Orange broadband services will be promoted, and in the three Orange outlets, T-Mobile services will also be on offer.
Both brands will be clearly displayed in the windows, but with the host broadband provider taking the overall lead in individual shops.
Andrew Coull, Vice-President of Retail at Everything Everywhere, said the firm's 720-strong retail footprint is "at the heart" of the company.
He commented that the Everything Everywhere is "really excited" about its growth plans, which could have benefits for both fixed broadband and dongle users.
"The dual branded stores give us an amazing opportunity to extend our reach into new places and importantly give our customers even more choice in existing locations," Mr Coull added.