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 (4708) · Billing errors (2484) · Support unreachable (2110) · Poor core service (1446) · Missed appointments (1095) · Account/app problems (996) · Overcharging (890) · Faulty product (885)
| # | Company | TrustScore | Complaint rate (recent) | Complaints found | Top reported issue | Official record |
|---|---|---|---|---|---|---|
| 1 | blinkcharging.com | 1.2 | 100% | 86 | Faulty product | — |
| 2 | E.ON SE | 1.2 | 93% | 94 | Billing errors | — |
| 3 | G.B.C | 4.2 | 58% | 117 | Support unreachable | — |
| 4 | WaterCoolersDirect.com (The WCD Group) | 2.3 | 45% | 45 | Delivery late | — |
| 5 | Thameswater | 3.9 | 38% | 415 | Support unhelpful | — |
| 6 | Utilita | 4.3 | 19% | 741 | Support unhelpful | 1040.0/100k (OFGEM) |
| 7 | British Gas | 4.4 | 18% | 1,596 | Support unhelpful | 1279.0/100k (OFGEM) |
| 8 | ECO-WORTHY UK | 4.3 | 18% | 19 | Faulty product | — |
| 9 | E.ON Next Energy Ltd | 4.5 | 12% | 1,428 | Support unhelpful | 3.35★ (Citizens Advice) |
| 10 | ScottishPower | 4.4 | 10% | 1,148 | Support unhelpful | 2116.0/100k (OFGEM) |
| 11 | BOXT | 4.7 | 9% | 985 | Support unhelpful | — |
| 12 | Aqua Cure | 4.8 | 8% | 13 | Delivery failed | — |
| 13 | United Utilities | 4.7 | 7% | 246 | Poor core service | — |
| 14 | OVO | 4.7 | 7% | 978 | Support unhelpful | 1807.0/100k (OFGEM) |
| 15 | Direct Drainage | 4.8 | 7% | 11 | Delivery late | — |
| 16 | Worcester Bosch | 4.7 | 6% | 143 | Faulty product | — |
| 17 | Warmworks | 4.8 | 6% | 73 | Poor core service | — |
| 18 | Calor | 4.7 | 6% | 151 | Support unhelpful | — |
| 19 | UK Water Filters | 4.8 | 6% | 75 | Faulty product | — |
| 20 | Mrcharger | 4.7 | 6% | 11 | Support unhelpful | — |
| 21 | Uswich | 4.7 | 6% | 4 | Misleading pricing | — |
| 22 | Lime | 4.8 | 6% | 14 | Poor core service | — |
| 23 | Phox Water | 4.7 | 6% | 195 | Faulty product | — |
| 24 | Octopus Energy | 4.8 | 5% | 932 | Support unhelpful | 475.0/100k (OFGEM) |
| 25 | Sunsave | 4.7 | 5% | 13 | Misleading pricing | — |
| 26 | Your NRG | 4.7 | 5% | 224 | Delivery late | — |
| 27 | Insite Energy | 4.7 | 5% | 56 | Support unhelpful | — |
| 28 | Kensa | 4.5 | 5% | 5 | — | — |
| 29 | Smart Home Charge | 4.8 | 5% | 54 | Support unhelpful | — |
| 30 | EDF UK | 4.8 | 4% | 810 | Support unhelpful | 2287.0/100k (OFGEM) |
| 31 | Hommix UK - Water Filtration | 4.9 | 4% | 8 | Faulty product | — |
| 32 | InstantLogs | 4.7 | 4% | 8 | Not as described | — |
| 33 | Outfox Energy | 4.8 | 4% | 650 | Support unhelpful | 3.25★ (Citizens Advice) |
| 34 | Elecology | 4.8 | 4% | 6 | Support unhelpful | — |
| 35 | Solar Panel Funding | 4.8 | 4% | 145 | Other | — |
| 36 | UK Boiler Care (UKBC) | 4.5 | 4% | 4 | — | — |
| 37 | Good Energy | 4.8 | 4% | 47 | Billing errors | 2.32★ (Citizens Advice) |
| 38 | Ecosave Gas & Power | 4.8 | 4% | 111 | Misleading pricing | — |
| 39 | Tweeds | 4.8 | 4% | 5 | Delivery late | — |
| 40 | Monarch Water | 4.9 | 3% | 33 | Faulty product | — |
| 41 | Heatable | 4.8 | 3% | 87 | Support unhelpful | — |
| 42 | UKLogsDirect | 4.9 | 3% | 69 | Delivery late | — |
| 43 | Rural Energy Saving Grants | 4.7 | 3% | 5 | Support unhelpful | — |
| 44 | Flogas Britain Limited | 4.8 | 3% | 120 | Delivery late | — |
| 45 | Solar4Good UK Ltd | 4.9 | 3% | 5 | Other | — |
| 46 | waEV-charge | 4.9 | 3% | 17 | Support unhelpful | — |
| 47 | Arton Plumbing & Heating | 4.9 | 3% | 22 | Poor core service | — |
| 48 | Timports | 4.9 | 3% | 59 | Delivery late | — |
| 49 | Severn Trent | 4.9 | 3% | 122 | Support unhelpful | — |
| 50 | Springhill Water Services | 4.8 | 3% | 5 | Overcharging | — |
| 51 | Voltanic Solar | 4.9 | 2% | 4 | Support unreachable | — |
| 52 | AID Fuel Oils | 4.8 | 2% | 45 | Delivery late | — |
| 53 | Hometree Finance | 4.8 | 2% | 14 | Contract term changes | — |
| 54 | Senergy Direct | 4.8 | 2% | 5 | Other | — |
| 55 | The Edinburgh Boiler Company | 4.9 | 2% | 46 | Support unhelpful | — |
| 56 | Blue Flame (Cornwall) | 4.9 | 2% | 4 | — | — |
| 57 | Octopus Energy for Business | 4.9 | 2% | 20 | Support unhelpful | — |
| 58 | Aquila Heating & Plumbing Ltd | 4.8 | 2% | 12 | Support unhelpful | — |
| 59 | The Log Shed | 4.9 | 2% | 8 | Faulty product | — |
| 60 | Ford Fuels | 4.9 | 2% | 72 | Delivery late | — |
All UK energy & utilities companies in the census, A–Z
72 companies with evidenced complaints in this sector. The league above ranks only those with at least 50 recent reviews analysed; this list is everyone.
- AID Fuel Oils
- Aqua Cure
- Aquila Heating & Plumbing Ltd
- Arton Plumbing & Heating
- BBQ Gas London
- blinkcharging.com
- BOXT
- British Gas
- Calido | Logs, Stoves & Outdoors
- Calor
- Diamond Green Energy Ltd
- Direct Drainage
- E.ON Next Energy Ltd
- E.ON SE
- Eastern Gases
- ECO-WORTHY UK
- Ecosave Gas & Power
- EDF UK
- Elecology
- Emiter Ltd
- Energy Buzz Limited
- Flogas Britain Limited
- Ford Fuels
- G D Jones & Son Ltd
- G.B.C
- Gas Bottles Direct
- Gasdepot
- Good Energy
- Greenstar Solar
- Heatable
- Hometree Finance
- Hommix UK - Water Filtration
- Insite Energy
- InstantLogs
- Light Renewables
- Lime
- M&R Plumbing & Heating Ltd
- Monarch Water
- Mrcharger
- Namibian Hardwood UK LTD
- Octopus Energy
- Outfox Energy
- OVO
- Phox Water
- PROGAS HEATING SERVICES LTD
- Rural Energy Saving Grants
- ScottishPower
- Senergy Direct
- Severn Trent
- Smart Home Charge
- Solar Panel Funding
- Solar4Good UK Ltd
- Springhill Water Services
- Sunsave
- Thameswater
- The Edinburgh Boiler Company
- The Log Shed
- Timports
- Tweeds
- UK EV Installers Shop
- UK Water Filters
- UKLogsDirect
- United Utilities
- Uswich
- Utilita
- Voltanic Solar
- waEV-charge
- Warmworks
- WaterCoolersDirect.com (The WCD Group)
- Worcester Bosch
- Wray Group Ltd
- Your NRG
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.