How to value an engineering business

What does an engineering business sell?

Strip away the equipment list and most engineering businesses sell two things: skilled hours, and the judgement of the people supplying them. A general engineering workshop sells fitting, machining, welding and fabrication time. A maintenance contractor sells crews on site. An equipment builder sells designs turned into machines. The valuation question is how many of those hours the business can sell, at what realised rate, how reliably, and how much of it depends on a few people.

Inside a single workshop the work usually falls into types that behave differently, and we analyse them separately where the records allow.

Fabrication-led and site-based businesses have their own pages: fabrication business valuation and mining services business valuation. Work in progress, retentions and contract balances on larger projects are covered on our engineering business valuation page. This article concentrates on the workshop economics that sit underneath all of them.

How many hours does the business really sell?

The core arithmetic of an engineering workshop is simple: the number of tradespeople, multiplied by the share of paid hours charged to a job, multiplied by the rate actually realised per charged hour. Wages are paid on every hour, but revenue arrives only on chargeable ones. Small changes in utilisation therefore move profit far more than they move revenue.

We ask for chargeable and paid hours by month for at least two years, and compare the realised rate with the published charge-out rate. A wide gap usually means discounting, hours written off on fixed-price jobs that ran over, or rework. Each tells a buyer something about pricing discipline and quality.

The trend matters more than any single figure. Rising utilisation with a flat headcount suggests a business near capacity, where growth depends on finding more tradespeople. Falling utilisation suggests the work is thinning before the revenue line shows it.

Do the charge-out rates recover the real cost of labour?

Engineering rates are often set by habit and by what the largest customer will accept. We compare the realised rate with the full cost of a productive hour: wages, overtime, superannuation, workers compensation, leave, tools, consumables and the share of overhead each chargeable hour has to carry. Most trades staff in these businesses are covered by the Manufacturing and Associated Industries and Occupations Award 2020, which covers boilermakers, welders and fitter and turners among others, although many workshops pay well above award rates to keep good people.

The risk sits in the contracts. A schedule of rates fixed for a three-year service agreement with no review clause can turn a good customer into a loss-making one as wages rise. We read the rate review terms in each major agreement and check when rates last moved against when wages did. A business whose rates have kept pace has protected its earnings. One whose rates have not may be reporting a margin that is about to shrink.

How deep is the trade workforce?

Skilled trades are the binding constraint for many engineering businesses. Jobs and Skills Australia's 2025 Occupation Shortage Drivers Report lists Structural Steel and Welding Trades Workers and Metal Fitters and Machinists among the occupation groups in shortage, with a long training gap as the main driver: few qualified applicants per vacancy and a training pathway of certificate III or above. Replacing an experienced fitter and machinist or a qualified welder can take months.

In a valuation we look at the workforce behind the earnings:

• How many tradespeople there are, their length of service, and how many are likely to retire in the next few years
• Apprentices in training, and the record of keeping them once they qualify
• Reliance on overtime and labour hire to deliver current volumes
• Who holds the tickets and qualifications that particular work requires
• Whether the supervisors could run the floor and the quoting without the owner

A workshop that depends on three long-serving tradespeople who know every customer's equipment carries a risk that will not appear in the accounts. A buyer will ask about it directly and may want those people committed before completion.

Which workshop certifications carry weight with buyers?

For businesses doing structural and other critical welding, two standards matter beyond general quality certification. AS/NZS ISO 3834 sets quality requirements for fusion welding of metallic materials. AS/NZS 5131 Structural steelwork: Fabrication and erection is the technical basis of the Australian Steel Institute's National Structural Steelwork Compliance Scheme, under which fabricators are audited and certified by Steelwork Compliance Australia. Where a customer or its engineer specifies them, certification becomes a condition of quoting rather than a marketing point.

For value, a certification is only as durable as the systems and people behind it: qualified welding procedures, trained supervisors, inspection records and the person who keeps the audit file current. We ask when each certification was last audited, who maintains it, and what would happen if that person left. A certification that would lapse without one individual is a key-person risk, not a barrier to entry.

Who owns the drawings behind the repeat work?

Many workshops earn steady margins making wear parts, spares and components that customers reorder. Over the years the business builds a library of drawings, CNC programs, fixtures and proven set-ups for those parts. That library is often the most valuable thing in the business that does not appear on the balance sheet, and one of the first things a buyer asks about is who owns it.

The answer depends on how each drawing came about. Some are supplied by the customer and remain the customer's. Others were created by the business, often by measuring a worn original, and may belong to the company, to the employee or contractor who drew them, or may not be documented at all. Whether the business is entitled to keep making a given part is a question for your lawyer, but a buyer will raise it in due diligence, so it is better answered beforehand.

We ask for the parts list with reorder history, a drawing register showing who created each drawing, and any customer terms dealing with intellectual property. A repeat parts book with clear ownership, a backed-up program library and several customers reordering is a recurring income stream a buyer will pay for. One that lives in the owner's head and on a single computer is not.

How does this come together in the valuation?

For an established workshop with a steady base of repeat and maintenance work, capitalisation of maintainable earnings is usually the primary method. The analysis above decides what those earnings are: normal utilisation rather than a peak year, rates that recover current labour costs, and a market salary for an owner who works on the tools or does all the estimating. Plant matters mainly through the capital it will need and the finance owing on it, as explained in how plant and equipment affects business value.

Concentration often matters too. Many workshops grew up around one mine, processing plant or equipment manufacturer, and the share of hours sold to that customer is a central risk; see how customer concentration affects business value. The valuation methods themselves are described on how we value.

What helps before an engineering valuation?

• Paid and chargeable hours by month for at least two years
• Charge-out rate history and the realised rate after discounts and write-offs
• Revenue and margin split by work type: breakdown, maintenance, repeat parts and projects
• Service agreements and schedules of rates, with their review clauses and renewal dates
• A staff list with trades, tickets, length of service and apprentices
• Certificates and the latest audit reports for AS/NZS ISO 3834, AS/NZS 5131, ISO 9001 or customer prequalification
• The repeat parts list, the drawing register and any customer terms on intellectual property
• An equipment register and finance schedules

Once we are engaged, documents come through the private upload link on your matter, never by email, and your information stays confidential. Fees are fixed and set by annual turnover; see pricing. We confirm the fee in writing before we start. No hourly billing.