17 providers offer 166 broadband deals in Dunmurry, from £20 a month (£40 after 12 months) and up to 7,000 Mbps. Typical measured speed is 172 Mbps down and 28 Mbps up, 70% above the UK download average. Full fibre is available to 95.0% of homes.
Deals for Dunmurry (BT17), checked and refreshed daily.
Best value broadband deal in Dunmurry (BT17)
The best value in Dunmurry (BT17) on full first-year cost is 4th Utility's 900Mb Full Fibre (24 Months): £264 across year one, about £22 a month. At 900 Mbps it copes with anything a household runs at once.
Best value in Dunmurry (BT17)
£22/mo
for 12 months, then £44/mo
Cheapest broadband deal in Dunmurry (BT17)
The cheapest deal in Dunmurry (BT17) is 300Mb Full Fibre (24 Months) from 4th Utility at £20.00 a month for 300 Mbps. It's full fibre, so the advertised speed is the speed that reaches the router. The £20.00 is an intro price that rises to £40.00 a month after the intro window, making the real first-year cost £240. YouFibre is essentially level at £20.00 a month.
Cheapest in Dunmurry (BT17)
£20/mo
for 12 months, then £40/mo
Runner-up on price
£20/mo
No rises, no surprises.
Fastest broadband deal in Dunmurry (BT17)
The fastest deal available in Dunmurry (BT17) is You 8000 from YouFibre at 7,000 Mbps.
Fastest in Dunmurry (BT17)
£50/mo
No rises, no surprises.
Compare broadband deals in Dunmurry (BT17)
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£23/mo
No rises, no surprises.
£25.99/mo
rises to £29.99 in March 2027 (+£4)
£23.99/mo
rises to £27.99 in March 2027 (+£4)
Broadband providers in Dunmurry (BT17)
17 providers serve Dunmurry (BT17) including Virgin Media, Sky and BT, with YouFibre the fastest at 7,000 Mbps.
Ranked by Ofcom complaints per 100,000 customers, fewest first. A down arrow is below the industry average, up is above, and a dash means Ofcom publishes no figure for that provider (usually because it is below Ofcom's 1.5% market-share reporting threshold). A small diagonal arrow shows the past-year trend (↘ improving, ↗ getting worse).
Ofcom records the typical Dunmurry (BT17) download speed at 172 Mbps.
Upgrade nudge
Room to upgrade in Dunmurry (BT17)
Only 27% of the 9,400 connections here are on 300Mbps or faster, even though 95% can get gigabit.
The faster line is already there. For most of these homes it is the contract holding them back, not the infrastructure.
Is your broadband good enough?
The typical Dunmurry (BT17) line runs 172 Mbps.
Working from home
OKStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 95% of Dunmurry (BT17), and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does Dunmurry (BT17) have?
Superfast broadband reaches 100% of Dunmurry (BT17) premises and gigabit 95%, on Ofcom's premise-level data.
Can I rely on mobile broadband in Dunmurry (BT17)?
Outdoor 5G reaches 100% of Dunmurry (BT17) homes. Here is how mobile holds up if the line drops.
The two 5G figures differ. “5G availability” is everyday 5G running on the existing 4G core, which is what most phones show. “Next-gen 5G” is standalone 5G: a full 5G network with lower lag, still reaching fewer places.
5G & 4G home broadband
Outdoor 5G covers 100% of Dunmurry (BT17), enough for a 5G home-broadband hub to stand in for a fixed line.
How Dunmurry (BT17) compares within Belfast
Across 15 postcode districts in Belfast, by connection count, typical speed and gigabit coverage.
Nearby areas
Frequently asked questions
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Speed and coverage figures for Dunmurry (BT17)come from Ofcom's Connected Nations data, current to January 2026. Deal prices are pulled live from providers. Compiled by the FindBroadband team. See how we rank and source our data.