We put the 14 questions a person in Guildford asks before choosing electrician — cost, specialism, who to use, how to check them — to Claude and ChatGPT, 5 times each, 140 answers in all, and recorded every firm the answers named. 30 firms in Guildford were checked against those answers. 7 of them were named at least once. The rest were not recommended in a single answer.
| # | Firm | Named in | On questions |
|---|---|---|---|
| 1 | NICEIC | 60 of 140 answers | 12 of 14 |
| 2 | Alder Electrical | 5 of 140 answers | 1 of 14 |
| 3 | GM Electrical Service | 5 of 140 answers | 1 of 14 |
| 4 | Nigel Adams Electrical | 2 of 140 answers | 1 of 14 |
| 5 | Barton Knight Electrical | 2 of 140 answers | 1 of 14 |
| 6 | Galaxy Electrical Services | 1 of 140 answers | 1 of 14 |
| 7 | HaMuch | 1 of 140 answers | 1 of 14 |
| 8 | All Service 4U | 0 of 140 answers | 0 of 14 |
| 9 | Homelectrics | 0 of 140 answers | 0 of 14 |
| 10 | Innovative Energy Systems | 0 of 140 answers | 0 of 14 |
| 11 | Lime Electrical Contractors | 0 of 140 answers | 0 of 14 |
| 12 | SRJeanes LTD | 0 of 140 answers | 0 of 14 |
| 13 | Avery's | 0 of 140 answers | 0 of 14 |
| 14 | Mad Casino | 0 of 140 answers | 0 of 14 |
| 15 | RS Electrical & Gas | 0 of 140 answers | 0 of 14 |
| 16 | Nick Buckland Electrical Services | 0 of 140 answers | 0 of 14 |
| 17 | Shales Electrical | 0 of 140 answers | 0 of 14 |
| 18 | A & P Electrical Services | 0 of 140 answers | 0 of 14 |
| 19 | GCP Electrical Limited | 0 of 140 answers | 0 of 14 |
| 20 | Impact Electrical | 0 of 140 answers | 0 of 14 |
| 21 | Anderson Compliance Testing | 0 of 140 answers | 0 of 14 |
| 22 | HAB Electrical | 0 of 140 answers | 0 of 14 |
| 23 | Elite Electrical | 0 of 140 answers | 0 of 14 |
| 24 | Etheringtons Electrical | 0 of 140 answers | 0 of 14 |
| 25 | DRS Electrical | 0 of 140 answers | 0 of 14 |
| 26 | Bestfix | 0 of 140 answers | 0 of 14 |
| 27 | Guildford Electricians | All Electrical Work in Surrey | 0 of 140 answers | 0 of 14 |
| 28 | M & W Electrical Services | 0 of 140 answers | 0 of 14 |
| 29 | TJN Electrical | 0 of 140 answers | 0 of 14 |
| 30 | Hone Electrics | 0 of 140 answers | 0 of 14 |
Firms are ranked by the number of answers that named them, then by how many different questions. The assistants do not give identical answers twice, so a difference of one or two mentions is noise; being named on questions a rival is absent from is not.
Every firm above has a private report: which answers named it, which rivals were named instead, whether its website can be read by the assistants, and the three things that would change the result. We work with one electrician in Guildford, and this index is re-measured every month, so the change is visible here.