4th Utility Broadband Profile

About 4th Utility Broadband

4th Utility is a UK broadband provider offering full fibre (FTTP) broadband on the CityFibre network, primarily serving London. 4th Utility offers symmetrical speeds, meaning upload and download speeds are equal — a significant advantage for video conferencing, cloud backups and content creation. The provider holds a 4.3/5 rating on Trustpilot.

4th Utility Broadband Packages and Pricing

4th Utility offers the following broadband packages as of March 2026: Full Fibre packages (symmetrical speeds, unlimited data): 100Mbps £18/m until Mar 2027 then rises.
150Mbps £26/m 6m then £36.
200Mbps £29/m 6m then £39.
250Mbps £21/m 6m then £31 or £23/m 12m then £37.
300Mbps £31/m 6m then £41.
500Mbps £32/m 6m then £42.
900Mbps £34/m 6m then £44.
1Gbps £21/m 12m then £30.
2.3Gbps £33/m 12m then £47. All +£4 annual March rise. Contracts are typically 6, 12, 24 months; 30-day rolling (higher price, more flexibility) Uswitch..

Network and Technology

4th Utility's broadband runs on FTTP full fibre via CityFibre network (3.5M+ homes) or own independent network.. Coverage: Over 4M UK properties via CityFibre; own network in urban areas e.g. London, Birmingham, Manchester. Postcode checker on site.. Router: Icotera i4850-25 Wi-Fi 5 router included ISPreview, CompareBroadband..

Customer Service and Satisfaction

4th Utility has a Trustpilot rating of 4.3/5 (6,000+ reviews) Trustpilot; also reported 4.3 from 7,100+ BroadbandAnalyst.. Ofcom data: 83% satisfaction (above average); 4 complaints per 100k customers (below average) CompareFibre. Not listed in top complainants in Ofcom Q3 2025 data.. Support: Phone 0333 888 4050 or 0800 066 2833, WhatsApp; praised for helpful staff but some reports of long waits Official Site, Trustpilot..

Price Rises and Contract Terms

£4 annual increase each March mid-contract (per Uswitch Mar 2026 deals); longer contracts offer savings 4th Utility Pricing FAQs. Ofcom banned opaque CPI+X percentage-based price rises from January 2025 — all UK providers must now state a clear fixed pound amount for any mid-contract increase. All broadband contracts come with a 14-day cooling-off period, and switching is handled through One Touch Switch — your new provider manages the process with no need to contact your current one.

Frequently Asked Questions

Is 4th Utility broadband any good?

4th Utility has a 4.3/5 (6,000+ reviews) Trustpilot; also reported 4.3 from 7,100+ BroadbandAnalyst. Trustpilot rating. Key strengths include symmetrical speeds. Check your postcode to see if 4th Utility is available at your address and compare with other providers.

What speeds does 4th Utility offer?

4th Utility offers broadband speeds ranging from 100 Mbps to 900 Mbps, depending on your chosen package and what is available at your address.

Does 4th Utility have mid-contract price rises?

£4 annual increase each March mid-contract (per Uswitch Mar 2026 deals); longer contracts offer savings 4th Utility Pricing FAQs.

Where is 4th Utility available?

Over 4M UK properties via CityFibre; own network in urban areas e.g. London, Birmingham, Manchester. Postcode checker on site. Enter your postcode on CompareFibre to check availability and compare deals from all providers at your address.