Severn Trent vs United Utilities: most-reported complaints compared
Most-reported issues at Severn Trent and United Utilities, according to reviewers on Trustpilot — classified by our automated reader and backed by verbatim quotes from distinct reviews. This is a side-by-side of what reviewers report, not a score, rating or recommendation for either company.
Severn Trent
TrustScore 4.9 · 41,326 reviews on Trustpilot.
2,323 reviews analysed, 2026-06-18 to 2026-09-23.
Complaint rate (recent window): 2%
100% of negative reviews get a company reply.
“Big mistake they jumped from £16 a month to £47.”
United Utilities
TrustScore 4.7 · 7,725 reviews on Trustpilot.
1,300 reviews analysed, 2026-06-20 to 2026-09-24.
Complaint rate (recent window): 7%
98% of negative reviews get a company reply.
“TOOK SO LONG TO HELP ME, WEEKS. NO REAL HELPFUL ADVICE.”
Reported on both
Issues with an evidenced category (at least two verbatim quotes) on both sides.
| Issue | Severn Trent | United Utilities |
|---|---|---|
| Support unhelpful | 33% | 30% |
| Billing errors | 29% | 12% |
| Poor core service | 27% | 42% |
| Support unreachable | 14% | 11% |
| Overcharging | 7% | 7% |
Method: reviews are classified into a fixed complaint taxonomy by an automated reader; every category shown is backed by at least two verbatim quotes from distinct reviews. Figures are census classifications, not official statistics, and reflect what reviewers reported — not findings of wrongdoing by either company. Not affiliated with, endorsed by, or sponsored by Trustpilot A/S, Severn Trent or United Utilities.