Energy & Utilities in the UK: the complaint league
Gas and electricity suppliers, heating and solar installers, water companies. Ranked by the share of recent Trustpilot reviews our census classified as complaints, for companies operating in the UK with at least 50 recent reviews analysed.
Most-reported issues across this sector: Support unhelpful (3397) · Billing errors (1736) · Support unreachable (1436) · Poor core service (827) · Account/app problems (765) · Missed appointments (760) · Faulty product (691) · Overcharging (661)
| # | Company | TrustScore | Complaint rate (recent) | Complaints found | Top reported issue | Official record |
|---|---|---|---|---|---|---|
| 1 | blinkcharging.com | 1.2 | 100% | 85 | Faulty product | — |
| 2 | WaterCoolersDirect.com (The WCD Group) | 2.3 | 45% | 45 | Delivery late | — |
| 3 | British Gas | 4.4 | 18% | 1,067 | Support unhelpful | 3084.0/100k (OFGEM) |
| 4 | Utilita | 4.3 | 18% | 619 | Support unhelpful | 360.0/100k (OFGEM) |
| 5 | E.ON Next Energy Ltd | 4.5 | 12% | 1,048 | Support unhelpful | 3.25★ (Citizens Advice) |
| 6 | ScottishPower | 4.4 | 9% | 806 | Support unhelpful | 1546.0/100k (OFGEM) |
| 7 | Aqua Cure | 4.8 | 8% | 13 | Delivery failed | — |
| 8 | BOXT | 4.7 | 8% | 707 | Support unhelpful | — |
| 9 | OVO | 4.7 | 7% | 762 | Support unhelpful | 1631.0/100k (OFGEM) |
| 10 | United Utilities | 4.7 | 7% | 175 | Poor core service | — |
| 11 | Calor | 4.7 | 7% | 97 | Support unhelpful | — |
| 12 | Direct Drainage | 4.8 | 6% | 10 | Delivery late | — |
| 13 | Phox Water | 4.7 | 6% | 179 | Faulty product | — |
| 14 | Smart Home Charge | 4.8 | 5% | 50 | Support unhelpful | — |
| 15 | Sunsave | 4.7 | 5% | 9 | Misleading pricing | — |
| 16 | Warmworks | 4.8 | 5% | 70 | Poor core service | — |
| 17 | Worcester Bosch | 4.7 | 5% | 95 | Faulty product | — |
| 18 | Octopus Energy | 4.8 | 5% | 750 | Support unhelpful | 1110.0/100k (OFGEM) |
| 19 | Insite Energy | 4.7 | 5% | 50 | Support unreachable | — |
| 20 | Outfox Energy | 4.8 | 5% | 596 | Support unhelpful | 3.9★ (Citizens Advice) |
| 21 | Hommix UK - Water Filtration | 4.9 | 4% | 8 | Faulty product | — |
| 22 | Your NRG | 4.8 | 4% | 191 | Delivery late | — |
| 23 | Good Energy | 4.8 | 4% | 44 | Billing errors | 3.25★ (Citizens Advice) |
| 24 | Solar Panel Funding | 4.8 | 4% | 137 | Other | — |
| 25 | Heatable | 4.8 | 4% | 73 | Support unhelpful | — |
| 26 | Kensa | 4.4 | 4% | 4 | — | — |
| 27 | EDF UK | 4.8 | 4% | 666 | Support unhelpful | 2547.0/100k (OFGEM) |
| 28 | Lime | 4.7 | 4% | 8 | Misleading pricing | — |
| 29 | UK Water Filters | 4.8 | 4% | 62 | Faulty product | — |
| 30 | Mrcharger | 4.8 | 4% | 7 | Support unreachable | — |
| 31 | Tweeds | 4.8 | 4% | 5 | Delivery late | — |
| 32 | Ecosave Gas & Power | 4.9 | 4% | 103 | Misleading pricing | — |
| 33 | UKLogsDirect | 4.9 | 3% | 64 | Delivery late | — |
| 34 | waEV-charge | 4.9 | 3% | 15 | Support unhelpful | — |
| 35 | Arton Plumbing & Heating | 4.9 | 3% | 20 | Poor core service | — |
| 36 | Timports | 4.9 | 3% | 53 | Delivery late | — |
| 37 | Solar4Good UK Ltd | 4.8 | 3% | 5 | Other | — |
| 38 | Monarch Water | 4.9 | 3% | 32 | Faulty product | — |
| 39 | Senergy Direct | 4.8 | 3% | 5 | Other | — |
| 40 | Flogas Britain Limited | 4.7 | 3% | 99 | Delivery late | — |
| 41 | Voltanic Solar | 4.9 | 2% | 4 | Support unreachable | — |
| 42 | Springhill Water Services | 4.8 | 2% | 4 | — | — |
| 43 | The Edinburgh Boiler Company | 4.9 | 2% | 46 | Support unhelpful | — |
| 44 | Aquila Heating & Plumbing Ltd | 4.8 | 2% | 12 | Support unhelpful | — |
| 45 | AID Fuel Oils | 4.9 | 2% | 43 | Delivery late | — |
| 46 | Severn Trent | 4.9 | 2% | 96 | Support unhelpful | — |
| 47 | Blue Flame (Cornwall) | 4.9 | 2% | 3 | — | — |
| 48 | Octopus Energy for Business | 4.9 | 2% | 8 | Support unhelpful | — |
| 49 | The Log Shed | 4.9 | 2% | 8 | Faulty product | — |
| 50 | Wray Group Ltd | 4.9 | 2% | 3 | Delivery late | — |
| 51 | BBQ Gas London | 4.9 | 2% | 33 | Delivery late | — |
| 52 | M&R Plumbing & Heating Ltd | 4.9 | 1% | 8 | Billing errors | — |
| 53 | Gasdepot | 4.9 | 1% | 13 | Delivery late | — |
| 54 | PROGAS HEATING SERVICES LTD | 4.9 | 1% | 21 | Poor core service | — |
| 55 | Diamond Green Energy Ltd | 4.9 | 1% | 23 | Support unhelpful | — |
| 56 | Hometree Finance | 4.9 | 1% | 12 | Contract term changes | — |
| 57 | Greenstar Solar | 4.9 | 1% | 1 | — | — |
| 58 | Coal Drop: Nationwide Fuel Suppliers | 4.9 | 1% | 1 | — | — |
| 59 | Save Energy UK | 4.8 | 1% | 1 | — | — |
| 60 | Eastern Gases | 5 | 1% | 12 | Delivery failed | — |
Complaint rate = complaints identified per recent reviews analysed in our census window; it is not an official complaints statistic. Companies below 50 analysed recent reviews are not ranked. See the US table for this sector.