If you’ve ever opened a repair invoice and felt a knot in your stomach, you’re not alone. Most people think the price is just for the part they need, but the labour charge can be a big surprise. Understanding how mechanics work out their fees helps you plan better and avoid nasty shocks at the end of the day.
First up, labour. In the UK most garages charge by the hour, and rates can range from £45 to £120 depending on location, experience and the type of workshop. A simple oil change might take 30 minutes, while a timing belt replacement can easily eat up two or three hours. The total labour cost is the hourly rate multiplied by the time the job actually takes.
Next, there are parts. Some shops mark up parts a bit, especially if they source them from a third‑party supplier. OEM (original equipment manufacturer) parts usually cost more than aftermarket equivalents, but they also tend to last longer. Always ask whether the price shown is for the part alone or includes any markup.
Don’t forget taxes and disposal fees. VAT is added to the whole invoice, and many garages charge a small fee for disposing of old fluids or parts. These are legitimate, but they can creep up if you’re not aware of them beforehand.
Ask for a written estimate before any work starts. A good estimate lists parts, labour hours and any extra charges. If the final bill is higher, the garage should explain why – perhaps the problem was worse than expected.
Shop around. A quick phone call to a few local garages can give you a ballpark figure for the same job. You might discover that a small independent shop offers the same quality at a lower rate than a large chain.
Consider DIY for simple jobs. Changing a filter, topping up coolant or swapping brake pads are tasks many car owners can handle with basic tools. Doing it yourself saves the labour cost entirely, and you still get the satisfaction of fixing your ride.Watch for hidden fees. Some garages tack on “shop supplies” or “diagnostic fees” that sound vague. Ask what each charge covers and whether it’s really necessary for your specific repair.
Finally, build a relationship with a trusted mechanic. When you become a regular customer, many shops will give you a discount or at least be more transparent about pricing.
Knowing where your money goes makes the repair process less stressful. Keep these tips in mind next time you need a fix, and you’ll walk away with a fair bill and a car that runs smoothly.