Which construction companies in Farnham do AI assistants actually recommend?

We put the 14 questions a person in Farnham asks before choosing construction companie — cost, specialism, who to use, how to check them — to Claude, 5 times each, 70 answers in all, and recorded every firm the answers named. 26 firms in Farnham were checked against those answers. 1 of them were named at least once. The rest were not recommended in a single answer.

The league table

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.

The questions we asked

1. Do I need a full contract or can I just get an ad hoc quote for a loft conversion?
2. How much does a single-storey extension cost near Farnham?
3. Which local builder should I use for a kitchen extension in Farnham?
4. Is it better to hire an independent builder or a larger regional firm for a garage conversion near Aldershot?
5. We're planning a renovation on a Victorian terrace in Farnham town centre - what should we budget for unexpected structural issues?
6. How do I check if a construction company near Farnham is actually accredited and not just claiming it?
7. Who are the most reliable independent builders between Farnham and Guildford?
8. Should I compare quotes from firms in Farnham vs ones based in Woking before deciding?
9. What accreditations should a trustworthy builder near Farnham actually have?
10. I'm getting three quotes for a rear extension in Farnham - how do I know which one is genuinely reliable?
11. What's a realistic cost per square metre for new builds in Surrey right now?
12. Which independent construction firm would you recommend for a self-build project near Farnham?
13. Are there any independent reviews of local builders operating around Farnham and Bordon?
14. For a small home renovation, should I go with a sole trader or a registered local construction company?

How this was measured

• Date: 1 October 2026. This is one day, not a trend; the index is re-measured monthly.
• Sample: 14 questions × 1 assistant × 5 runs = 70 answers. 26 firms checked.
• Assistants used: Claude (Anthropic’s Sonnet model, through its API, with web search). Answers from these programming interfaces can differ from what the consumer apps show.
• Counting: a firm is counted when its name appears in an answer. Names are picked out of the answer text automatically, then matched to the firm list.
• Limits: the assistants vary between runs, so small gaps are noise. Firms that were not named may still be recommended by an assistant or a question we did not ask. National chains are left off the list.