Bad Estimates Cost More Than Lost Profit

One of the most expensive mistakes a garage can make doesn't happen on the ramp.

It happens at the front desk.

Every time a service advisor promises a price too early, guesses at a repair or relies on poor information, the business takes a gamble. Sometimes you get away with it. More often than you'd like, it costs you money.

Modern vehicles are simply too complicated to estimate accurately over the phone. Customers often describe symptoms, not faults. They tell you what they think is wrong rather than what the car is actually doing. Yet garages still feel under pressure to provide fixed prices before anyone has even looked at the vehicle.

That is where the trouble starts.

When your front of house team gets this wrong, it costs a fortune. The technician finds something different. The repair takes longer than expected. More parts are needed. Suddenly someone has to ring the customer and explain why the original estimate has changed.

Nobody enjoys that conversation.

The customer feels misled. The service advisor feels embarrassed. The technician gets frustrated because they are blamed for "going over estimate", even though they were never given a realistic one in the first place.

Then there is the data.

If the labour times, service schedules, vehicle information or parts data you are working from are inaccurate, the estimate is already flawed before you've even spoken to the customer. One small error at the beginning of the process can echo through the entire job. The wrong booking length affects workshop loading. The wrong parts delay the repair. The wrong price damages confidence.

Good data is not a luxury. It is part of your profitability.

Here is the uncomfortable truth. If your garage constantly gets estimates wrong, customers stop believing what you tell them. They may accept one mistake. They might even forgive two. But if every visit ends with the bill being higher than expected, eventually they stop coming back.

That is not because they object to paying for quality work. It is because they lose confidence in the process.

Perhaps the industry also needs to become better at selling diagnosis. Diagnosis is not a hurdle before the repair. It is the repair. Identifying the fault correctly is a skilled job that deserves to be valued, not apologised for.

The garages that consistently get this right are not guessing less because they are lucky. They have good systems, reliable data and front of house teams who are confident enough to say, "We need to inspect the vehicle before we can give you an accurate estimate." And “yes that’s a chargeable service”

That is not poor customer service. It is honest customer service.

How often do your estimates change after the vehicle arrives, and what is it really costing your business?