About the Author

Diarmuid Doyle is the founder and lead automotive cost researcher at . Based in the UK, he has spent years investigating and documenting the real costs of car repairs and maintenance across the country.

Why I Started CostDetails.com

I got tired of the same problem every car owner faces: you get a repair quote and have absolutely no idea whether it’s fair. Is £400 for brake pads reasonable? Should a clutch replacement really cost £900? The answers weren’t easy to find, and the information that did exist was vague, outdated, or clearly written by someone who’d never set foot in a garage.

So I started doing the research myself. I collected quotes from garages across the UK, cross-referenced parts prices from major suppliers like Euro Car Parts, GSF, and Halfords, and spoke with independent mechanics about what jobs actually involve. CostDetails.com is the result of that work.

How I Research Costs

Every cost guide on this site follows a rigorous process. I gather pricing data from multiple sources: parts supplier catalogues, garage management software benchmarks, real quotes from independent garages, fast-fit chains, and main dealers across different UK regions. I verify labour rates against regional averages and factor in the differences between vehicle categories.

I don’t just pull numbers from thin air. Each article includes cost breakdowns by vehicle type, car make, garage type, and region because those are the variables that actually determine what you’ll pay. When I say a brake pad replacement costs between £90 and £300, I can tell you exactly why that range exists and where your car falls within it.

My Approach

I believe in being direct. You won’t find vague advice like “costs vary” without actual figures to back it up. Every guide includes specific price ranges, comparison tables, and honest assessments of whether a job is worth doing yourself or best left to a professional.

I also update these guides regularly. Parts prices shift, labour rates change, and new vehicle models bring different repair challenges. The data you see reflects current UK market conditions, not figures from three years ago.

Get in Touch

If you’ve got a question about a repair cost, spotted something that needs updating, or want to suggest a topic for a new guide, I’d genuinely like to hear from you. Drop me a line through the contact page.