Hiring an estimator feels like the obvious move once tender volume picks up. Bring the pricing in-house, the thinking goes, and you save the fees you pay outside while keeping the knowledge under your own roof. It can be the right call. The trouble is that most builders compare an outside fee against a salary, and a salary is only a fraction of what an employee actually costs.
This guide adds up the full annual cost of an in-house estimator, ex VAT and in pounds, so you can compare like for like. The figures here are indicative and vary by region and seniority, but the structure of the sum holds wherever you are.
Salary is the smallest part of the bill
Start with base pay, then add the costs that come with employing anyone. Employer National Insurance, a workplace pension contribution, holiday and sick pay, and the cost of cover when the person is away all sit on top. Together these typically add somewhere around thirty to forty per cent to the headline salary before you have bought a single licence or paid for any training.
On a mid-level salary, that uplift alone can be a five-figure sum each year. It is real money that leaves your account whether or not a tender lands, and it is easy to forget when you are looking at a job advert and a number that feels affordable.
The hidden line items
Beyond employment costs sit the tools and the space. An estimator needs takeoff and pricing software, a current cost data subscription such as BCIS if you price to published rates, a workstation with two screens, and a desk in an office you heat and insure. None of these are large on their own, but together they form a steady monthly drain.
Software and data
Measurement software, a spreadsheet or estimating package, and a cost data feed all carry annual licences. If you want estimates that hold up against a quantity surveyor on the other side of a tender, you also need access to current rates rather than figures remembered from two years ago.
Training and standards
Pricing methods move on. Keeping an estimator current on RICS NRM measurement rules and on changing material prices means CPD, the odd course, and time spent reading rather than pricing. That time is paid for whether or not it produces a win.
The cost of idle weeks
The figure most builders miss is the quiet period. A salaried estimator is paid every month, but tender flow is lumpy. In a slow stretch you are paying full cost for partial output, and there is no fee to switch off. Over a year, even a few light weeks can wipe out the saving you expected from bringing the work in-house.
This is the heart of the decision. An in-house estimator is fixed cost. An outside estimating service or freelance quantity surveyor is variable cost that you only pay when there is work to price. The right answer depends entirely on how full and how steady your pipeline is.
When the numbers stack up
An in-house hire tends to pay off when you have a genuine, year-round flow of pricing work, enough live tenders and projects that the person is busy most weeks, and the volume to absorb the fixed cost during quieter spells. If your pricing comes in waves, a mix of a lean in-house resource and outside support for peaks is often cheaper and less risky than a full salary.
- Steady tender flow across the year, not a few busy months.
- Enough volume to keep one person productive most weeks.
- Work complex or sensitive enough to justify the fixed cost over a pay-per-project service.
- Headroom in your overheads to carry the cost through a slow quarter.