Got questions?
Everything you need to know about Bob and AiBuildBuddy.
Bob's estimates are typically within 10–15% of real quotes for standard jobs — but accuracy depends heavily on the detail you give him. The more specific you are about size, spec, and materials, the sharper the number. Bob draws on our proprietary database of real UK quotes, regional labour rates, and live materials pricing — cross-referenced with historical quote data from similar jobs in your area. And he'll narrow the estimate down interactively as you share more. Think of it as a conversation, not a form.
Bob uses verified UK benchmark data from Checkatrade, RICS-aligned labour rates, and live materials pricing updated regularly. Estimates are for guidance only and do not constitute a formal quote, survey, or professional valuation. Always obtain at least three written quotes from qualified tradespeople before committing to any project.
Privacy is at the heart of how we built Bob. Your estimates, project details, and personal information are saved to your account only — never sold, never shared, never used for advertising. Ever.
Never without your explicit permission. When Bob contacts builders on your behalf, it's done through our platform — your personal email and phone number stay completely private. No spam, no unsolicited calls, no data leaks.
Bob can help you understand exactly what's driving the difference — and respond to your builder intelligently. Whether it's a legitimate cost, an inflated margin, or a missing item, Bob will help you ask the right questions, negotiate confidently, and decide whether to proceed before you sign anything.
Yes — always. The estimate is free, the builder list is free, and the PDF download is free. No sign-up required. We believe every homeowner deserves to know what's fair before they spend a penny.
Still have questions? Ask Bob directly.
Chat with Bob →AiBuildBuddy · UK benchmark data 2025/26 · Estimates are for guidance only and do not constitute professional advice. Home