TalkTalk is offering broadband customers the chance to fix their price for either 12 or 24 months.
According to the company, the UK's four major broadband providers have collectively increased their prices 19 times over the last two years.
However, TalkTalk has sought to prevent customers experiencing "bill shock" by offering Fix Low Price Plans, which mean broadband prices would be fixed for 18 months.
The provider is now extending this proposition further, ensuring people with 12 or 24-month contracts will not see prices go up during this period.
This offer will be available both to existing customers and to households that are considering switching to TalkTalk.
Tristia Harrison, Consumer Managing Director at TalkTalk, commented: "Seeing your price rocket mid-contract or the best deals saved only for new customers is incredibly frustrating and simply isn’t fair.
"We’re acting on what customers have told us and are proud to be leading the way in offering the value for money and peace of mind people deserve."
Ms Harrison pointed out that rising inflation is pushing up prices of everyday goods and creating an uncertain environment for consumers.
This, she said, means it has "never been more important" for people to know they are getting a good deal and paying a fair price.
TalkTalk believes that taking up one of the new packages could enable consumers to save up to £328 in comparison to similar plans from BT, Sky and Virgin Media over a two-year period.
This comes after TalkTalk confirmed that 300,000 customers signed up to its Fixed Low Price Plans in the month following their introduction in October last year.