Fibrus broadband deals: Northern Ireland and Cumbria altnet with government backing

What Fibrus actually is: Infracapital-backed altnet

Fibrus is an alternative-network full-fibre broadband operator delivering gigabit-capable FTTP across Northern Ireland and rural Cumbria in North West England. The company is backed by Infracapital (a leading UK infrastructure investor) and has secured major government funding contracts to extend its build into areas commercial rollout alone would not reach. Total investment is approximately £893 million, comprising £320 million committed debt, £200 million committed equity, and £373 million of government funding (£23m FFNI, £200m Project Stratum covering 81,000+ Northern Ireland premises by June 2025, and around £150m Project Gigabit contract for 53,500 Cumbria premises delivered via the Hyperfast GB brand). Fibrus recorded over 30% customer take-up as of January 2026, one of the highest rates among UK altnets.

The editorial honest take. For households in rural Northern Ireland or Cumbria, Fibrus is often the only full-fibre FTTP option. BT and Virgin Media do operate in the regions but their networks do not always reach the rural areas Fibrus specialises in. The Infracapital backing and £373 million of government funding provide unusual long-term security, and the 30%+ customer take-up rate is evidence that the product is landing well with households who have options. The main operational distinction worth flagging upfront: Fibrus delivers FTTP but with asymmetric speeds (download faster than upload), different from most UK own-network altnets running XGS-PON with fully symmetric speeds.

Fibrus speed tiers and typical prices

Fibrus offers three main consumer tiers. Typical April 2026 pricing on 24-month contracts with fixed pricing for the full term. Free installation is standard; routers are included.

The highlighted Full Fibre 500 tier is the sweet spot for most Fibrus households. Full Fibre 500 and Full Fibre 1000 include a second Amazon eero router as part of the Total Home WiFi Guarantee, rare among UK altnets and genuinely valuable for larger homes. The top Full Fibre 1000 tier at around £34.99 per month fixed for 24 months is competitive against Openreach-based gigabit plans. BT Full Fibre 900 at £43 per month with £4 per month April rise applied runs to roughly £1,080 over 24 months versus Fibrus around £840, a saving of roughly £240 with similar download speeds.

Fibrus is broadband-only with no TV or mobile bundles. A VoIP home phone add-on is available at £9.99 per month with free number porting. Fibrus does not currently offer a social tariff for households on qualifying benefits; households needing a discounted tariff should look at BT Home Essentials, Virgin Media Essential Broadband, or similar. Fibrus does offer a contract buyout scheme in some cases, paying off your previous provider's early termination fees as part of switching.

Asymmetric speeds: the honest editorial point

An important editorial point worth handling directly. Fibrus is a 100% FTTP full-fibre network, but its consumer speeds are asymmetric (download faster than upload) rather than symmetric (upload matches download). This distinguishes Fibrus from most UK own-network altnets that run XGS-PON infrastructure with fully symmetric speeds.

The editorial honest take. Asymmetric FTTP is still fundamentally better than asymmetric cable or FTTC because fibre delivers consistent performance, lower latency, and reliable download speeds. For most Northern Ireland and Cumbria rural households who are choosing between Fibrus and an FTTC or ADSL fallback, Fibrus's asymmetric speeds are a massive upgrade. For households with a genuine choice between Fibrus and a symmetric altnet (which rarely happens in Fibrus's geographic footprint), the symmetric option may be preferable for upload-heavy workflows. In practice, Fibrus customers typically choose it because it is the best or only full-fibre option at their address.

Total Home WiFi Guarantee and contract buyout

Two Fibrus product features materially differentiate the offer from most UK broadband alternatives.

The editorial honest take. The Total Home WiFi Guarantee on Full Fibre 500 and 1000 tiers is genuinely unusual in UK broadband. Most providers only guarantee speed at the router; Fibrus guarantees usable speed in every room. Combined with the mesh eero setup and the contract buyout scheme, Fibrus has clearly designed its product to minimise customer risk when signing a fixed-term contract. For households considering a long commitment in a large or rural property, these guarantees meaningfully reduce the downside risk.

Fibrus vs Openreach and other altnets

For addresses in the Fibrus footprint, the comparisons worth running are (1) against Openreach-based majors (BT, Sky, Plusnet, Vodafone, TalkTalk, NOW) where Openreach FTTP has reached, (2) against Virgin Media where cable has reached (rare in rural footprint), and (3) against any rural altnets with overlapping coverage.

The practical arithmetic worth stating out loud. On Full Fibre 1000 at £34.99 per month fixed over 24 months: Fibrus total £840. BT Full Fibre 900 at £43 per month intro with £4 per month April rise applied at month 13 works out to roughly £1,080 over 24 months, with similar download speed. For Northern Ireland and Cumbria households where Fibrus is the realistic fibre option, the price advantage plus the included Wi-Fi mesh hardware plus the Total Home WiFi Guarantee makes a materially compelling value proposition.

What to check before ordering Fibrus

Compare Fibrus deals by postcode

The comparison widget below is filtered to show Fibrus home broadband only. Enter your postcode and select your exact address to see plans available at your property. Fibrus coverage applies only in Northern Ireland and parts of Cumbria.

Prefer to see the full UK market? Compare all providers at your postcode or filter by feature. For similar regional or rural altnets, see Gigaclear, Connect Fibre, or BeFibre.

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Trust, reputation, and corporate context

Fibrus is owned by Infracapital, a leading UK infrastructure investor with significant experience delivering and managing full-fibre broadband investments. The company's total investment of around £893 million comprises £320 million committed debt, £200 million in committed equity, and £373 million of government funding across the Project Stratum contract (£200 million, Northern Ireland rural full-fibre via Hyperfast NI) and the Project Gigabit Cumbria contract (around £108-150 million depending on specific structure, covering 53,500 rural premises via Hyperfast GB). Project Stratum completed in August 2025 having reached 81,000+ Northern Ireland premises; the Cumbria Project Gigabit build continues through 2026-2027 and is reported to be ahead of schedule. Fibrus is Ofcom-registered and operates under the General Conditions of entitlement.

Independent reviewer feedback through 2025 and early 2026 is consistently strong on Trustpilot. Fibrus has publicly reported high network take-up, in line with its role on Project Stratum. The primary consistent editorial criticisms are (1) asymmetric speeds rather than symmetric, (2) lack of social tariff for households on qualifying benefits, and (3) geographic footprint limited to NI and Cumbria. Credit where due: the Project Stratum contract delivery is widely regarded as a successful example of public-private infrastructure investment that has meaningfully transformed rural broadband across Northern Ireland.

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