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Onestream broadband review 2021

By Dan Howdle | Tuesday, April 13th 2021


Onestream broadband launched in the summer of 2018, and it’s part of the Hampshire-based broadband specialist Onecom. Like most UK broadband suppliers, it uses the Openreach network (see our broadband jargon guide for more information).

Onestream is one of a number of companies hoping to lure customers away from the ‘big four’ providers, BT, Sky, Virgin Media and TalkTalk. But is Onestream broadband any good?


Average download speed 17Mbps, 45Mbps & 67Mbps
Average upload speed 1.5Mbps, 8Mbps & 17Mbps
Broadband Fibre
Home Phone Yes
Contract length 18 months
Prices from £19.95 per month

Broadband speed

Onestream offers three fibre broadband deals. The cheapest is Jetstream Fibre Unlimited Broadband, which is a highly unusual fibre package. With average speeds of 17Mbps, it sits somewhere between the average 10Mbps speeds of ADSL broadband and the 36Mbps or so speeds of the cheapest fibre broadband packages offered by most other UK providers. It’s the slowest fibre option we’ve seen, but it could be a good budget option for customers who feel ADSL broadband is too slow but who don’t need particularly fast internet (take a look at our guide to see what broadband speeds you might need).

Then there’s Jetstream Fibre Max Unlimited Broadband, with an average download speed of 45Mbps and an average upload speed of 8Mbps. Most other providers offer something around the 35Mbps mark. This speed is perfect for those who have multiple devices connected to the internet simultaneously and especially for families streaming Netflix or iPlayer to more than one TV, laptop or smartphone at any one time.

Finally, Onestream’s Xstream Superfibre Unlimited Broadband promises average download speeds of 67Mbps and upload speeds of around 17Mbps – that’s about as fast a broadband speed as most people will be able to get from any UK provider other than Virgin Media, which runs on a different network and is substantially faster.

Compare fibre broadband

Installation and router

Onestream uses the same network as BT, Sky, TalkTalk and pretty much every other national provider in the UK except for Virgin Media. Because of this, if you sign up with Onestream you won’t have to inform your old provider that you’re switching broadband – Onestream will do this for you. Unless you’re currently with Virgin, in which case you will have to do it yourself.

Onestream doesn’t specify how long it will take to get your broadband up and running, but you can generally expect a new provider to have activated your service within a couple of weeks.

You’ll get step-by-step instructions to get things set up at home although you do have the option of getting an engineer to come out to do it for you – as long as you’re willing to pay extra.


There’s the promise of a free ‘Super Dooper Router’ with all three of Onestream’s broadband plans. This takes the form of a Technicolor TG588v2 single-band router. It is supplied for both standard broadband and fibre packages and has four fast Ethernet ports you can use for wired connections. This is a very basic router that falls some way behind those provided by the likes of BT and Virgin Media, but it should do the job for most connections.

There is a £9.99 charge for ‘secure delivery’ of the router.

Compare broadband with free installation


Specific figures for Onestream are hard to come by as it is such a new provider, and it isn’t included in Ofcom’s research because its market share is too small. But there are figures available for Openreach, which is in charge of the network that Onestream runs on.

Openreach says it fixed an impressive 97.1% of faults within five working days in the third quarter of 2020/21. This compares to 95.6% within four days in 2018.

Onestream does not use traffic management on any of its packages, so you shouldn’t notice any sudden slowdown in your connection, and it also claims to be totally unlimited so you can stream and download to your heart’s content.

Customer service

You can call up Onestream’s UK-based customer service team on 0300 303 2184 or send an email to hello@onestream.co.uk if you have any problems. The provider also offers a live chat function during office hours. Onestream’s parent company Onecom has a good reputation in the business broadband market, but reports of customer service for Onestream consumer broadband are mixed. As of January 2021, Onestream had a 3.8/5 rating on Trustpilot, with 50% of 1,788 reviews rating them as ‘Excellent’ and 33% rating them as ‘Bad’.


Onestream is still something of an unknown quantity because it’s so new, but its parent company Onecom is well-respected as a business broadband provider so that’s something to take comfort in.

Onestream offers one of the cheapest fibre broadband deals going with its Jetstream Fibre Unlimited, but this package provides much slower speeds than other fibre providers, so the savings might not be worth it if you’re in need of speedier internet. But on the positive side, the company has reduced its contracts from 24 months to 18 months, and its mid- and high-tier packages offer very competitive rates. Still, because of its budget-priced offering, don’t expect many extras from Onestream broadband packages. Head this way to check out the latest fibre broadband deals.

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