Over half of British consumers have not switched broadband providers for four years or more, with 28% stating they have never switched.
The survey, by broadbandchoices.co.uk, indicates that households are just as apathetic when it comes to broadband than they are with other products and services.
A recent Moneywise survey, for example, found that over two thirds of the British public have been with their bank or building society current account provider for ten years or more.
While a fifth of people surveyed by broadbandchoices had switched broadband provider in the last year, 8% hadn't switched for 18 months, 11% hadn't switched for two years and 9% hadn't switched for three years.
The firm said this broadband apathy means many consumers are being stung with overpriced, outdated packages.
Dominic Baliszewski, telecoms expert at broadbandchoices.co.uk, said: "Switching apathy is also still a prevalent problem. These customers [who haven't switched for at least four years] are essentially overpaying for outdated broadband packages and could instantly save themselves a significant amount of money by switching, as well as netting themselves a better, faster service.
"It is incredibly easy to switch providers nowadays with price comparison websites taking the hard work out of finding a better broadband deal."
The website also recently conducted a customer satisfaction survey, which resulted in a top award for Plusnet, clinching top prize for quality & reliability, customer service, value for money, speed of service activation, online security features and best overall provider.
BT took two prizes (best quality of router and Wi-Fi hotspots), while Virgin Media retained its title of fastest broadband provider, winning the gong for best broadband speed.