How to Hire Gas Engineers for Your Business

The UK has a significant and growing shortage of qualified gas engineers. Gas Safe Register reports that the number of registered engineers has been gradually declining, while demand for gas services remains high and the transition to heat pumps will require substantial reskilling. For business owners, this means qualified engineers are in demand — and hiring one requires a competitive offer, not just a job listing.

Before you start recruiting, be honest about what you're offering: competitive pay (in 2026, an experienced qualified gas engineer commands £35,000–£55,000/year in salary), a quality van and tools, structured working hours, and a business they're proud to represent. If your offering doesn't meet these standards, expect difficulty recruiting.

The most effective sourcing channels for gas engineers in 2026:

• Indeed and Reed: Post a well-written job advert with a clear salary range (vague "competitive salary" adverts receive fewer applications from the best candidates, who can choose their jobs). £35,000–£45,000 for 3+ years' experience is a typical benchmark outside London; £40,000–£55,000 in London and the South East
• Checkatrade and trade forums: GasTalk and UK Gas Forums have active communities of gas engineers, including those open to new positions. A post explaining your opportunity and what you offer reaches an engaged audience
• LinkedIn: Less traditional for the trade, but increasingly used. Search for Gas Safe engineers in your area; direct outreach to suitable candidates is often effective
• Referrals from existing team: Offer a referral bonus (£500–£1,000 is common) to any team member whose referral results in a hire. Engineers know other engineers, and the informally vetted candidate usually outperforms the anonymous applicant
• Gas Safe Register's business directory: Sole traders occasionally seek employment rather than self-employment. You can reach out to engineers in your area via the register, though this is a cold outreach approach

This is non-negotiable. Before an engineer turns a single wrench on gas work for your business, verify:

• Current Gas Safe registration: Use the Gas Safe Register online verification tool (gassaferegister.co.uk) to confirm their registration is valid and covers the work categories you need. A registration card copy is not sufficient — verify directly with the register
• ACS certificates: Request originals or certified copies. Check the expiry date — ACS qualifications must be reassessed every 5 years
• Right to work in the UK: You are legally required to check this before employing anyone. Acceptable documents include a UK passport, Biometric Residence Permit, or share code for settled/pre-settled status
• Previous employer references: Call previous employers directly (not just written references) to ask about the quality of work and any safety incidents

An engineer who resists or is unable to provide these documents should not be hired. The consequences of employing an unregistered or unqualified gas engineer — injury, death, prosecution, loss of your own registration — are too severe to take shortcuts.

The best gas engineers are not looking for work — they're approached by businesses that offer better conditions than they have currently. To hire and retain the best:

• Pay market rate or above: Research current salaries in your area (Indeed salary data and APHC surveys are useful starting points). Paying £2,000–£5,000 above market rate for the right candidate is almost always worthwhile — the cost of losing a great engineer and recruiting a replacement far exceeds the annual premium
• Quality van and tools: Gas engineers take van quality seriously — it affects their professional image and their daily working life. A clean, reliable van with a well-organised racking system is a meaningful perk
• Structured training support: ACS reassessment (every 5 years) is expensive — cover this cost. Support additional qualifications (commercial gas, heat pump, air conditioning) that add value to the business and demonstrate investment in the engineer's career
• Clear progression: Offer a path from engineer to senior engineer or team leader for ambitious candidates. A business that offers progression attracts higher-calibre applicants
• Work-life balance: Reasonable working hours, limited out-of-hours expectations, and respect for personal time are increasingly important to engineers in the market. Those that abuse on-call commitments or expect excessive overtime burn through staff

Some gas engineering businesses prefer to use subcontractors rather than employees, avoiding the complexity of PAYE, employer's NI, and employment law. This is legally permissible but has important limitations.

A subcontractor must be genuinely self-employed — they set their own hours, work for multiple clients, provide their own tools and van, and take financial risk. HMRC's IR35 rules look carefully at arrangements where a supposed subcontractor is effectively a disguised employee. If an engineer only works for you, uses your tools and van, follows your instructions on how to work, and is integrated into your business operations, HMRC may reclassify the relationship as employment with significant tax consequences.

Use genuine subcontracting for legitimate overflow work with self-employed engineers who have their own businesses. For an engineer who will be dedicated to your business long-term, employment is the right structure.