Full fibre reaches 97.2% of homes in Glenderg, though only 14% of connections run at 300 Mbps or faster. Typical measured speed is 84 Mbps down and 18 Mbps up, 17% below the UK download average. 16 providers offer 204 broadband deals, up to 2,000 Mbps.
Deals for Glenderg (BT81), checked and refreshed daily.
Best value broadband deal in Glenderg (BT81)
The best value in Glenderg (BT81) on full first-year cost is Fibrus's Full Fibre 150: £240 across year one, about £20 a month. 159 Mbps covers streaming, video calls and working from home.
Best value in Glenderg (BT81)
£19.99/mo
No rises, no surprises.
Cheapest broadband deal in Glenderg (BT81)
The cheapest deal in Glenderg (BT81) is Fibre 40 from Onestream at £18.50 a month for 40 Mbps. Fibrus is essentially level at £19.99 a month. Well below the UK average, which shows on a busy evening.
Cheapest in Glenderg (BT81)
£18.50/mo
rises to £21.25 in April 2027 (+£2.75)
Runner-up on price
£19.99/mo
No rises, no surprises.
Fastest broadband deal in Glenderg (BT81)
The fastest deal available in Glenderg (BT81) is Gig2 Fibre broadband + Netflix from Virgin Media O2 at 2,000 Mbps. Next fastest is Full Fibre 1.6GB from EE at 1,600 Mbps.
Fastest in Glenderg (BT81)
£51.99/mo
rises to £55.99 in April 2027 (+£4)
Runner-up on speed
£38.99/mo
rises to £42.99 in March 2027 (+£4)
Compare broadband deals in Glenderg (BT81)
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£27.99/mo
rises to £31.99 in March 2027 (+£4)
£23/mo
No rises, no surprises.
£23/mo
No rises, no surprises.
Broadband providers in Glenderg (BT81)
16 providers serve Glenderg (BT81) including Sky, BT and Vodafone, with Virgin Media O2 the fastest at 2,000 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 Glenderg (BT81) download speed at 84 Mbps.
Upgrade nudge
Room to upgrade in Glenderg (BT81)
Only 14% of the 1,700 connections here are on 300Mbps or faster, even though 97% 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 Glenderg (BT81) line runs 84 Mbps.
Working from home
OKStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 97% of Glenderg (BT81), and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does Glenderg (BT81) have?
Superfast broadband reaches 98% of Glenderg (BT81) premises and gigabit 97%, on Ofcom's premise-level data.
Can I rely on mobile broadband in Glenderg (BT81)?
Outdoor 5G reaches 98% of Glenderg (BT81) 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.
How Glenderg (BT81) compares within Derry City and Strabane
Across 4 postcode districts in Derry City and Strabane, by connection count, typical speed and gigabit coverage.
Nearby areas
Frequently asked questions
Ready to switch
See what's actually live in Glenderg (BT81).
Enter your address and we'll show every deal you can genuinely order on your line, ranked by what you'll pay across the whole contract, not by who pays us.
Speed and coverage figures for Glenderg (BT81)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.