Best 100Mb broadband deals in August 2026
Finding the sweet spot between raw speed and your monthly budget can be a smart move and a 100Mb connection offers ample bandwidth for streaming, gaming, and even working from home, without the heavy price premium attached to faster packages.
Fortunately, this intermediate speed tier always delivers some of the best value, so we’ve rounded up this month’s top contenders to help you find a perfect mix of reliable packages and great savings. Here are what we think are the best 100Mb deals available right now.
1. Virgin Media M125 Fibre Broadband
• £17.99 per month • No upfront cost
Virgin Media's M125 fibre broadband is very often the best all-round broadband deal if you can get it. And it's consistent average download speeds of 132Mbps is plenty for most households.
M125 Fibre Broadband
No price rise until 2027Up to £300 Contract Buyout
132Mb
Average speed
No phone line
24
Month contract
Zero upfront cost
£17.99 Per month
Effective monthly cost is calculated by adding up all the monthly costs, price rises and any discounts and dividing it by the contract length.
2. Plusnet Full Fibre 145
£165 Reward Card • £22.99 per month • No upfront cost
A great compromise between speed and price. The 145Mbps average speed, with a guaranteed minimum of 80Mbps isn't the fastest fibre-to-the-property broadband available, but still more than enough for most households.
Full Fibre 145
First month payable upfront
145Mb
Average speed
No phone line
24
Month contract
£20 upfront cost
£22.99 Per month
Effective monthly cost is calculated by adding up all the monthly costs, price rises and any discounts and dividing it by the contract length.
Once activated you'll receive claim information by email and must claim within 2 months, then activate within 3 months of it being issued.
3. Sky Full Fibre 150
£80 gift card • £23 per month • No upfront cost
Sky's Full Fibre 150 broadband package provides, as you'd expect, 145Mbps average download speeds, with 100Mbps guaranteed. Sky offer much faster packages, but we think this package offers enough for most households.
Full Fibre 150
100Mbps speed guarantee£5 fee refunded to first billPrice may change again during minimum term
145Mb
Average speed
Pay as you go calls
24
Month contract
Zero upfront cost
£23.00 Per month
Effective monthly cost is calculated by adding up all the monthly costs, price rises and any discounts and dividing it by the contract length.
You will be sent instructions on how to choose your Gift Card up to 120 days after your purchase. You will have 90 days to claim your Gift Card by sending it to your email or mobile phone.
4. Onestream Supreme Full Fibre 115
£21.99 per month • £4.95 upfront cost
Onestream's Full Fibre package is staggeringly cheap for what you get. And with Onestream's outstanding customer service repuation you can be sure that saving money isn't going to mean terrible broadband, or a terrible service overall Quite the opposite, in fact.
Supreme Full Fibre 115
Over 20,000 5-star reviews on Trustpilot
100Mb
Average speed
No phone line
24
Month contract
£4.95 upfront cost
£21.99 Per month
Effective monthly cost is calculated by adding up all the monthly costs, price rises and any discounts and dividing it by the contract length.
Easily compare the best deals, providers and speeds where you live. It's free and takes less than a minute to check your postcode.
5. NOW Full Fibre 100
£23 per month • No upfront cost
NOW Full Fibre 100 broadband is an affordable FTTP option for busy households needing reliable speed. Consistent average download speeds of 100Mbps and uploads of 20Mbps efficiently handle multi-device usage, including multiple HD/4K streams and high-quality video conferencing, ensuring a dependable, lag-free connection.
Full Fibre 100
£5 fee refunded to first bill
100Mb
Average speed
No phone line
24
Month contract
Zero upfront cost
£23.00 Per month
Effective monthly cost is calculated by adding up all the monthly costs, price rises and any discounts and dividing it by the contract length.
Our expert advisors have access to special offers and can create a personalised package just for you. Give us a call!
Call 0330 221 9424How to find the best 100Mb broadband deals
A 100Mb broadband connection is widely considered the absolute 1sweet spot1 for most modern households. Plenty fast enough for heavy daily usage, but without the high costs of gigabit (1,000Mb+) luxury plans. In fact, this article is being written using a 100Mb connection.
Here's your essential guide to navigating the market and finding the best 100Mb broadband deal for your needs.
1. Who is 100Mb broadband actually for?
Before you hit switch, it's worth making sure this speed tier actually matches your household’s needs. While it may seem almost 'entry level' these days, a 100Mb pipeline will comfortably support:
- Medium to large households – Good enough for small family homes or flatshares where 3 to 4 people are tapping into the Wi-Fi at the exact same time.
- 4K streaming – Easily handles Ultra HD streaming across a few devices simultaneously without annoying buffering.
- Home working – Provides generous bandwidth for stutter-free Zoom or Teams video calls alongside rapid file transfers.
- Gamers – Delivers swift patch downloads and stable latency, though serious competitive players may want to look out for 'symmetric' alternatives.
2. Typical costs and providers
For a quality 100Mb package, you should generally expect your baseline bill to land somewhere between £22 and £26 per month. Often considerably less.
- Budget options – Sub-brands like NOW Broadband (powered by Sky) consistently offer great value here, with their Full Fibre 100 plan often sitting around £26. Value players like EE and Plusnet regularly have discounts which can drag prices down in to low twenties.
- Major providers – One of the oddities of the UK market is that the supposedly 'high-end' providers are often as cheap, if not cheaper than what have traditionally been considered value brands. Virgin Media, Sky, BT, and EE are widely available and if you catch a special offer can be amazingly cheap.
- Challenger networks – In terms of value, independent fibre networks like Community Fibre or Hyperoptic (often referred to as 'altnets') sometimes wipe the floor with the big players, but only in very specific locations. Don't be surprised if your only options are with the big guys.
3. Be aware of upload speeds
Most mainstream 100Mb deals are 'asymmetric'. This means while your download pipe is a fast 100Mb, your upload pipe is a lot narrowe, often capping out at around 18Mb to 20Mb.
- Standard uploads (18–100Mbps) – If your provider uses the nationwide Openreach network (such as Sky, Vodafone, or NOW), your upload speeds will likely sit in this lower bracket. For normal browsing, streaming, and gaming, this is completely fine.
- Symmetric speeds (100Mbps+) – If you're lucky enough to be in an area covered by an independent full-fibre altnet, they offer 'symmetric' connections. This means your upload speed matches your 100Mb download speed which is a big advantage for content creators, twitch streamers, or anyone backing up massive folders to cloud storage.
4. Key things to check before you buy
- Availability – To get a stable 100Mb line, your house usually needs access to a Full Fibre (FTTP) line or Virgin Media's cable infrastructure. Always run your address through a postcode checker first; if your street can only get older "Superfast" (FTTC) copper-hybrid fibre, your line will max out at 67Mb.
- Contract length – Be ready for a long-term commitment. The overwhelming majority of top-tier 100Mb deals now carry rigid 24-month contract terms. Shorter 12-month plans are increasingly rare and usually carry an inflated monthly cost.
- Setup fees – Always search out zero upfront cost promotions. While many providers long ago waived their installation and delivery charges, some will still try to quietly slide a £5 to £30 delivery or activation fee into your initial statement.
- New customer incentives – The real savings often live in the welcome perks. Always look out for deals bundled with pre-paid Mastercards, high-street shopping vouchers, or direct account bill credits to offset your true contract outlay.
5. Quick comparison checklist
When you are scanning through a live comparison table, ask yourself these three questions to clear out the marketing noise:
- Is the price fixed? – Most mainstream providers build automatic mid-contract price hikes directly into their contracts. If you want protection from that, look for independent fixed-price champions like Rebel who promise no increases during your contract term. But they're often cost more to begin with.
- Do I need a phone line? – These days, modern 100Mb setups are almost universally broadband-only data lines. But do check – unless you specifically use a physical landline phone every week, make sure you aren't paying a single extra penny for legacy line rental.
- Is the bundled hardware up to scratch? – A 100Mb connection is only as good as the box broadcasting it. Check to see if your provider includes a modern, intelligent router capable of managing multi-device congestion, ensuring you actually hit those 100Mb speeds over Wi-Fi rather than just on a wired cable.
