The field service skills shortage is real and getting worse. There are nearly 937,000 new tradespeople needed by 2032 to meet demand and replace retiring workers. And yet most field service businesses advertise for engineers using job ads that look like they were written in twenty minutes and copied from the last time they hired.
Good engineers (the ones you actually want) are not sitting at home scrolling job boards hoping something catches their eye. They’re busy. They get approached regularly. When they do look, they’re making a quick judgement about whether your ad is worth their time. If it reads like every other ad on the page, they move on.
Here we cover the most common mistakes, what to put instead, and what a decent ad for a field service engineer actually looks like.
The most common mistakes
“Competitive salary”
This phrase appears in the majority of field service job ads and it is probably the single most damaging thing you can put in one. Experienced engineers read “competitive salary” as code for below-market. If the salary were genuinely competitive, the thinking goes, you’d say what it is.
The data backs this up. Reed’s 2024 analysis found that job ads listing a specific salary receive around 60% more applications. Adzuna’s research puts the uplift even higher: up to six times as many applications when salary is disclosed. In a 2025 survey of 3,000 UK workers by Totaljobs, salary transparency was among the most commonly cited factors in deciding whether to apply.
There is no legitimate reason to hide the salary in a field service engineer job ad. If you’re worried the figure is too low, the answer is to review the rate, not obscure it and hope nobody notices until interview.
The wall of requirements
Most field service job ads include a list of ten to fifteen essential requirements. Gas Safe registration, NVQ Level 3, five years minimum experience, full UK driving licence, own tools, experience with specific equipment brands, customer-facing experience, experience writing service reports, and so on.
The problem with long requirements lists isn’t just that they’re off-putting to read. It’s that they discourage good candidates who meet eight out of ten criteria from applying at all, because they assume every item is a dealbreaker. The engineer who’s done the job for six years but hasn’t written service reports on your specific software platform won’t bother, even though you’d hire them immediately if they applied. Split requirements into genuinely essential (without which they cannot do the job) and desirable. If something is trainable, say so.
The generic company introduction
“We are a leading provider of field service solutions with over 20 years of experience delivering excellence to our clients across the UK.”
That sentence tells an engineer nothing. Worse, it sounds identical to dozens of other ads. If you want to describe your company, be specific: how many engineers are on the team, what kinds of jobs you run, whether it’s mostly residential or commercial, how long you’ve been operating and in what region. Specificity builds trust. Generalities kill attention.
Hiding the reality of the role
Every good engineer who has changed jobs because an employer misrepresented the work will be reading your ad looking for signs of the same. If the role involves overnight stays, say so. If there’s an on-call rota, say so and explain how it works. If the van territory covers a 60-mile radius, say that. If there’s no out-of-hours requirement, that is a genuine selling point and you should lead with it.
Engineers who discover the reality of the role at interview, after they’ve taken time off work, driven to a meeting, and invested emotionally in the opportunity, do not feel well-disposed toward the business.
What good engineers are actually looking for
Beyond salary, the Totaljobs Skilled Trades Industry Report 2025 identifies the benefits that matter most to engineers and tradespeople: sick pay above statutory minimum, enhanced pension contributions, flexibility around hours, and training and development that’s paid for by the employer.
In field service specifically, the practical package often matters more than any of those. A well-fitted and stocked van makes a real difference to how an engineer feels about their day. Fuel cards, tools provided, uniform supplied, Gas Safe or other registration fees covered by the employer: these are the things engineers talk about when they’re deciding between two similar offers. List them. Don’t assume they’re obvious.
Training and career development also matter more than many small field service businesses realise. An engineer who can see a route to covering more complex work, gaining additional qualifications, or eventually moving into a senior or supervisory role is more likely to stay than one who feels they’ve topped out the moment they join. If you invest in your engineers’ development, say so and be specific about what that looks like.
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What a better ad looks like
Here is how the same role reads in two versions. The first is typical of what you find on most job boards. The second takes fifteen minutes longer to write and produces a fundamentally different response.
Typical ad:
HVAC Engineer required for a busy field service business. The ideal candidate will have a minimum of 3 years’ experience, hold relevant qualifications and have a full clean driving licence. Competitive salary offered. Must be hardworking, reliable and customer-focused. Please send CV to info@example.com.
Better ad:
HVAC Service Engineer — Belfast/Antrim area — £36,000–£40,000 + van + fuel card
We’re a nine-engineer heating and ventilation business based in Lisburn, established in 2011. We cover mostly commercial and light industrial sites across Belfast and Antrim — office buildings, schools, care homes, and leisure facilities. No residential on-call and no overnight stays.
What the job actually involves:
You’ll carry out planned maintenance visits and reactive callouts across a patch you’ll own from day one. Around 70% of your work is PPM — you’ll know your schedule a week ahead. The other 30% is reactive, routed through the office during working hours. You’ll have a fully stocked Ford Transit Custom, a fuel card, and a direct line to two senior engineers when you need backup on a diagnosis.
What we’re looking for:
You’ll need F-Gas Cat 1 certification and at least three years in HVAC service. Familiarity with Mitsubishi and Daikin VRF systems is a real advantage but not essential — we’ll train the right person. You need to be comfortable talking to facilities managers and building owners without needing someone to hold your hand.
What we offer:
£36,000–£40,000 depending on experience. Company van (personal use allowed), fuel card, full tool kit provided, uniform and PPE. 28 days holiday including bank holidays. We pay for ongoing F-Gas recertification and any manufacturer training. Monday to Friday, 8am–5pm. No on-call rota.
How to apply:
Email your CV to [name] at . We respond to every application within three working days.
The second version is not longer. It’s under 280 words. It contains specific salary, a clear description of the day, an honest account of the work mix, the practical package spelled out, and genuine personality without any hollow claims. An experienced HVAC engineer reading this knows immediately whether the role fits their life.
Where to post it
For field service engineer roles in the UK and Ireland, Indeed and CV-Library cover the broadest reach. Reed is worth using for more senior roles. For gas and heating engineers specifically, the Gas Safe Job Board reaches a targeted audience.
Social media, particularly Facebook, performs well for field service roles in trades, and your local business community, regional trade groups, and LinkedIn are all worth a post. Word of mouth through your existing engineers is consistently one of the strongest sources: a referral from someone who already works for you arrives pre-sold on the culture.
Posting on multiple channels simultaneously is straightforward for most platforms. Keep the ad live and refresh it every 30 days, as most job boards resurface refreshed ads, which brings a fresh wave of views at no extra cost.
Once you’ve hired, the onboarding article covers how to set a new engineer up for success from day one. And if you’re still working out whether to hire an employee or bring in a subcontractor, the employees vs subcontractors article covers that decision in detail, including the compliance risk of getting it wrong.
