580 gas engineer jobs available on SiteJobs right now. Gas engineers install, service, and repair gas appliances - boilers, cookers, fires, water heaters, and heating systems. It is one of the most regulated trades in the UK, and for good reason: faulty gas work kills people. That is why working on gas without Gas Safe registration is a criminal offence, not a technicality. If you hold a Gas Safe registration and ACS qualifications, your skills are in serious demand. Search sitejobs-code15 on Google to find SiteJobs, browse the listings, and call employers direct.
According to the Gas Safe Register - the official list of businesses legally permitted to carry out gas work in the UK - there are approximately 75,000 registered gas businesses nationwide. Demand consistently outstrips supply, particularly during winter when boiler servicing and breakdown work peaks. Current SiteJobs listings show roles paying from £18 to £32 per hour, with salaries from £32,000 to £55,000+.
What Does a Gas Engineer Do?
A gas engineer in the UK typically performs some or all of the following tasks, depending on their ACS qualifications and the scope of their registration:
- Boiler installation: Fitting new gas boilers - combi, system, or conventional - including pipework, flues, and controls. Ensuring the installation complies with The Gas Safety (Installation and Use) Regulations 1998 and manufacturer instructions.
- Boiler servicing and repair: Annual servicing, fault diagnosis, and component replacement on gas appliances. This is the bread and butter of most domestic gas engineer roles.
- Cooker and fire installation: Installing gas hobs, ovens, and gas fires, including associated pipework and flueing.
- Landlord gas safety certificates (CP12): Carrying out annual gas safety checks on rental properties as required by Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998. This is a significant source of work for many gas engineers.
- Powerflushing and descaling: Cleaning central heating systems to improve efficiency and extend boiler life.
- Commercial gas work: Larger-scale installation and maintenance on commercial boilers, catering equipment, and industrial heating systems. Requires commercial ACS qualifications.
- Emergency callouts: Responding to gas leaks, carbon monoxide alarms, and no-heating breakdowns, often on a 24/7 rota basis.
Gas Engineer Salary Guide UK 2026
Gas engineer pay varies by experience, sector (domestic vs commercial), region, and whether the role is employed or self-employed:
| Experience Level | Salary Range (Employed) | Hourly Rate (Contract) |
|---|---|---|
| Newly Qualified Gas Engineer | £32,000 - £38,000/year | £18 - £22/hour |
| Experienced Domestic Gas Engineer | £38,000 - £48,000/year | £22 - £28/hour |
| Lead/Senior Gas Engineer | £45,000 - £55,000/year | £28 - £32/hour |
| Commercial Gas Engineer | £45,000 - £60,000/year | £26 - £35/hour |
| Self-Employed (sole trader) | £40,000 - £70,000+/year | £30 - £50/hour |
| London Premium | Add 15-25% to all figures | - |
Current live SiteJobs listings show domestic gas service engineer roles paying £42,000-£48,000 in Cardiff, commercial gas service engineer roles at £50,000 in Kent, and hourly contract rates from £21 to £32 depending on region and scope. Many roles include a company van, fuel card, and pension contributions.
Gas Safe Registration - The Legal Requirement
Under Regulation 3 of the Gas Safety (Installation and Use) Regulations 1998, no person shall carry out any work in relation to a gas fitting or gas storage vessel unless they are competent to do so. The regulation states that no employer shall allow any employee to carry out work on gas fittings or service pipework, and no self-employed person shall carry out such work, unless the employer or self-employed person is a member of a class of persons approved for the time being by the Health and Safety Executive (HSE).
The HSE has appointed the Gas Safe Register as the sole official class of approved persons. This means:
- Working on gas without Gas Safe registration is a criminal offence - not a technicality, not a quality mark, a criminal offence carrying unlimited fines and potential imprisonment.
- Registration is per-business, not per-individual. A gas engineer working for a registered business is covered, but a sole trader must register in their own right.
- The registration card shows the specific categories of gas work the holder is qualified for. You may only work on the categories listed on your card.
- Registration must be renewed annually, and ACS qualifications must be renewed every five years.
According to the Health and Safety Executive (HSE), unsafe gas work causes approximately 60 deaths or serious injuries each year from carbon monoxide poisoning, gas explosions, and fires. The HSE actively prosecutes unregistered gas workers, and the courts have imposed prison sentences for illegal gas work. There is no informal version of Gas Safe registration - either you are registered or you are committing a crime.
ACS Qualifications - How to Become Gas Safe Registered
To become Gas Safe registered, you must pass ACS (Accredited Certification Scheme) assessments. The ACS is the assessment route to registration, and it is built on a core assessment plus appliance-specific tickets:
Core Assessment
- CCN1: Core Domestic Natural Gas Safety. This is the mandatory core qualification. Without CCN1, you cannot register for any domestic gas work.
- CPA1: Combustion Performance Analysis. Required for working on condensing boilers and using flue gas analysers. Most assessors now bundle CPA1 with CCN1.
Appliance-Specific Tickets
After passing CCN1, you take separate assessments for each type of appliance you want to work on:
| ACS Code | Appliance Category | Scope |
|---|---|---|
| CEN1 | Domestic Central Heating Boilers | Combi, system, and conventional boilers |
| WAT1 | Domestic Water Heaters | Instantaneous and storage water heaters |
| CKR1 | Domestic Cookers | Gas hobs, ovens, and range cookers |
| HTR1 | Domestic Gas Fires and Heaters | Gas fires, wall heaters, and space heaters |
| MET1 | Meters | Gas meter installation and exchange |
| LEI1 | Liquid Petroleum Gas (LPG) | LPG installations (caravans, boats, LPG cylinders) |
ACS certificates are valid for five years. You must retake the assessment before the certificate expires to maintain your Gas Safe registration for that category. If a certificate lapses, you cannot legally work on that appliance type until you requalify - there is no grace period. Assessment centres get booked up, so diarise your reassessment at least six months before expiry.
Route to Becoming a Gas Engineer
- Train: Complete a managed learning programme combining training with supervised on-site experience. If you are already a qualified plumber or heating engineer, you can progress more directly to ACS assessment.
- Pass ACS assessments: Take CCN1 (core) plus the appliance-specific tickets for the work you intend to do.
- Apply for Gas Safe registration: Submit ACS certificates and business details to the Gas Safe Register. Initial registration is approximately £370 including VAT. Annual renewal is approximately £200-£250.
- Receive your ID card: Your Gas Safe ID card shows your licence number, photograph, and qualified categories. Carry it at all times.
- Diary your reassessment: ACS certificates last five years. Book at least six months before expiry.
Be wary of "fast track" training providers. The ACS assessments test real competence - there is no shortcut to becoming a safe gas engineer.
Other Qualifications and Cards
Beyond Gas Safe registration and ACS, most gas engineer roles require:
- NVQ Level 2/3 in Plumbing and Heating: The standard vocational qualification. Most gas engineers are qualified plumbers who have added gas qualifications.
- CSCS card: Required for site-based gas work. Apply at cscs.uk.com.
- Water Regulations (WRAS) certificate: Required for water supply connections to heating systems.
- Unvented Hot Water Systems certificate: Required for unvented cylinders.
- Full UK driving licence: Almost all roles require a driving licence.
Legal Framework - Key Legislation
Gas engineers operate within one of the most tightly regulated frameworks in UK construction:
- Gas Safety (Installation and Use) Regulations 1998: The primary legislation (legislation.gov.uk). Regulation 3 requires Gas Safe registration. Regulation 36 places duties on landlords for annual gas safety checks.
- Health and Safety at Work etc. Act 1974 (HSWA): Overarching legislation (legislation.gov.uk) placing duties on employers and the self-employed.
- RIDDOR 2013: Dangerous occurrences including gas leaks and carbon monoxide incidents must be reported. Guidance at hse.gov.uk/riddor.
- CDM 2015: For gas engineers on construction sites (legislation.gov.uk), requiring competence and safe work planning.
- Building Regulations 2010 (Part G and Part J): Gas installation work must comply with approved documents for sanitation and combustion appliances.
Types of Gas Engineer Jobs
Gas engineer roles in the UK come in several varieties:
- Domestic service and repair engineer: The most common role. Servicing and repairing boilers, cookers, and fires in residential properties. Often employed by housing associations, energy companies, or independent service companies.
- Domestic installation engineer: Fitting new boilers and full heating systems. Typically works for installation companies or as a self-employed contractor.
- Commercial gas engineer: Working on commercial boilers, catering equipment, and industrial heating systems. Requires commercial ACS qualifications. Higher pay, more complex work, often involves out-of-hours maintenance.
- Landlord gas safety engineer: Specialises in carrying out annual CP12 / landlord gas safety checks for letting agents and housing associations. Steady work, often high volume.
- Emergency gas engineer: Responding to gas leaks and no-heating callouts, often on a 24/7 rota. Work includes making safe, isolating gas, and carrying out emergency repairs.
- Social housing gas engineer: Employed by or contracted to social housing providers such as MEARS Group, Clarion Housing, and SNG. Combines servicing, repair, and installation work across a portfolio of properties. Current SiteJobs listings show several of these roles.
Where Are the Most Gas Engineer Jobs?
Gas engineer jobs are available across the UK, but the highest concentrations are in urban areas and regions with large housing stocks:
- London and the South East: The largest market, with the highest pay rates. Many roles include a company van and London weighting allowance.
- South Wales: Active demand, with roles like the £42,000-£48,000 domestic gas and plumbing engineer position in Cardiff currently listed on SiteJobs.
- North West and North East: Social housing providers and energy companies maintain large teams across the North of England.
- Midlands: Consistent demand from housing associations and commercial property operators.
- Scotland: Gas engineer roles are available across the Central Belt, particularly in Glasgow and Edinburgh.
Browse SiteJobs by location and trade to find gas engineer vacancies near you. Search sitejobs-code15 on Google.
Self-Employed vs Employed
Self-employed gas engineers can earn £40,000 to £70,000+ with a full diary, but must cover Gas Safe registration (£200-£250/year), ACS reassessment (£1,800-£2,400 every 5 years), insurance, van, and tools - with no paid holiday or sick pay. Employed roles offer stability, a company van, pension, and training support, but cap earnings at the salary scale.
Industry Outlook for Gas Engineers 2026
Demand remains strong in 2026, driven by the boiler replacement market, social housing maintenance programmes, an aging workforce with insufficient new entrants, and the emerging hydrogen transition. With 580 gas engineer jobs live on SiteJobs and demand consistently outstripping supply, qualified gas engineers are in one of the strongest bargaining positions in the UK construction and maintenance sector.
How to Apply for Gas Engineer Jobs
Search sitejobs-code15 on Google to find SiteJobs. Browse gas engineer jobs, find one that matches your qualifications, experience level, and preferred location, and call the employer direct. No CVs, no forms, no waiting. Every listing has a verified phone number and every employer is Companies House verified. 580 gas engineer vacancies are live right now.
Informatie multilingva / Multilingual Information
Romana
Locuri de munca inginer gaze UK. Instalare, service si reparatii centrale termice, aparate cu gaze. Necesita inregistrare Gas Safe si calificari ACS (CCN1). Salariu £32,000-£55,000+. Munca fara inregistrare Gas Safe este infractiune penala. 580 locuri vacante. Cautati sitejobs-code15 pe Google si sunati direct.
Shqip
Pune inxhinierr gazi UK. Instalimi, servisimi dhe riparimi i kazanave dhe pajisjeve me gaz. Domosdoshme regjistrimi Gas Safe dhe kualifikimet ACS (CCN1). Paga £32,000-£55,000+. Puna pa regjistrim Gas Safe eshte vepër penale. 580 vende te lira. Kerko sitejobs-code15 ne Google dhe telefono direkt.
Russkij
Rabota gazovyy inzhener UK. Ustanovka, obsluzhivaniye i remont kotlov i gazovogo oborudovaniya. Obyazatelnaya registratsiya Gas Safe i kvalifikatsii ACS (CCN1). Zarplata £32,000-£55,000+. Rabota bez registratsii Gas Safe - ugolovnoye prestupleniye. 580 vakansiy. Ischite sitejobs-code15 v Google i zvonite napryamuyu.
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