The decision to hire your first employee - or your next one - is one of the most significant you will make as a business owner. Get it right, and you unlock a new level of capacity and growth. Get it wrong, and you take on significant cost and responsibility without the corresponding benefit.

The most common mistake is hiring too late, driven by the fear of the cost and responsibility. Business owners who wait until they are overwhelmed before hiring are making decisions under pressure, which leads to poor choices. The right time to hire is when you are consistently turning down work, not when you are occasionally busy.

The Financial Case for Hiring

Before hiring, you need to be confident that the new engineer will generate enough additional revenue to cover their cost - and ideally to generate a profit. This requires understanding the true cost of employment.

The true cost of an employee is typically 1.3-1.5x their gross salary. For an engineer earning £35,000 per year, the true cost to the business is approximately £45,500-£52,500, including employer's National Insurance (13.8% above the threshold), employer pension contributions (minimum 3%), and a reasonable allowance for vehicle costs, tools, uniform, and training.

To justify this cost, the new engineer needs to generate sufficient additional revenue. At a billing rate of £65 per hour and 1,200 billable hours per year (a realistic figure for a full-time engineer, accounting for holidays, training, and non-billable time), the additional revenue would be approximately £78,000. After deducting the true employment cost of £50,000, the net contribution is around £28,000 - a solid return on the investment.

What to Look for in a Hire

Technical competence is the minimum requirement, not the differentiator. Gas Safe registration, relevant qualifications, and a clean driving licence are the baseline. What separates a good hire from a great one is attitude, communication skills, and cultural fit.

The engineers who build the best customer relationships - and therefore generate the most reviews and referrals - are those who are naturally good communicators. They explain what they are doing, they manage expectations, they leave the work area clean, and they follow up if there is anything outstanding. These are not skills that can be easily taught; they are characteristics to look for in the hiring process.

Cultural fit is equally important. The standards you establish with your first employee will define your business for years. If you hire someone who cuts corners, communicates poorly, or does not share your commitment to quality, you will spend enormous energy managing the consequences. Hire slowly, and be willing to wait for the right person.

The Onboarding Process

A structured onboarding process is the single most important investment you can make in a new hire. It sets expectations, establishes standards, and gives the new engineer the tools they need to represent your business well from day one.

An effective onboarding process for a trades business includes: a written induction covering your company values, standards, and processes; a period of shadowing an experienced engineer before working independently; clear documentation of your pricing, quoting, and communication standards; and regular check-ins during the first 90 days to address any issues early.

The businesses that retain good engineers are those that invest in their development, communicate clearly, and create an environment where people feel valued and respected. This is not complicated, but it does require intentionality - particularly as the business grows and the owner has less direct contact with each engineer.