Our Pricing Research Methodology

Every cost guide on CostDetails.com is built on real UK pricing data, not guesswork. Here is exactly how we research, verify, and maintain the figures you see across the site.

Data Sources

We pull pricing information from multiple independent sources to build an accurate picture of what UK car owners actually pay:

  • Parts supplier catalogues – We check current prices from Euro Car Parts, GSF Car Parts, Halfords, and specialist OEM suppliers. We record both aftermarket and genuine (OEM) part prices for each repair type.
  • Garage quotes – We collect real quotes from independent garages, fast-fit chains (Kwik Fit, Halfords Autocentres, ATS Euromaster), and main dealers across multiple UK regions.
  • Industry benchmarks – We reference labour rate data from garage management platforms and industry bodies to verify regional pricing patterns.
  • MOT and recall data – Where relevant, we cross-reference MOT failure statistics to identify the most common repair needs and their typical urgency.

How We Calculate Cost Ranges

Rather than giving a single misleading average, each guide breaks costs down by the variables that actually matter:

  • Vehicle type – Small cars, medium saloons, large estates, SUVs, and premium vehicles all have different parts costs and labour times. We provide separate figures for each.
  • Car make – A Ford Focus and a BMW 3 Series have very different repair bills. We include make-specific pricing for at least 7-10 popular UK makes per guide.
  • Garage type – Main dealers, independents, fast-fit chains, and mobile mechanics each have distinct pricing structures. We compare all four.
  • UK region – Labour rates in London can be 40-60% higher than in Wales or the North East. We show regional breakdowns using verified rate data.

Verification Process

Before any guide goes live, we run it through a multi-step verification:

  1. Cross-reference check – Every cost figure is checked against at least two independent data sources. If figures conflict significantly, we investigate further or widen the stated range.
  2. Expert review – Our content is reviewed by Diarmuid Doyle, who personally verifies that pricing data aligns with current market conditions.
  3. Outlier detection – We flag any figures that sit significantly outside expected ranges and either verify them with additional sources or exclude them.
  4. Currency and region check – All figures are in GBP and reflect UK-specific pricing. We do not convert or adapt figures from other markets.

How We Keep Data Current

Car repair costs change. Parts prices fluctuate with supply chains, labour rates adjust annually, and new vehicle models introduce different repair complexities. We address this through:

  • Regular reviews – Each guide is reviewed and updated on a rolling basis, with the most popular guides updated quarterly.
  • Date stamping – Every article shows when it was last updated so you always know how recent the data is.
  • Reader feedback – If you have received a quote that sits well outside our stated ranges, we want to know. Reader reports help us catch regional shifts and pricing changes faster.

What We Don’t Do

We don’t accept payment from garages or parts suppliers to feature or recommend them. Our cost data is independent. We don’t fabricate quotes or invent pricing scenarios. If we can’t verify a figure, we say so or exclude it. We don’t present US or European pricing as UK data.

Questions About Our Data?

If you spot something that looks off, or you have data that could improve our guides, please get in touch through our contact page. Accurate pricing helps everyone make better decisions about their car repairs.