HVAC / Refrigeration Engineer
Install, commission, service, and repair heating, ventilation, air conditioning, and refrigeration systems in commercial and residential buildings.
High
Moderate
3–4 years via apprenticeship or college route + F-Gas assessment
Level 3 NVQ + F-Gas Category 1 certification
typical
What you do
HVAC/R engineers design and install the systems that control temperature, air quality, and refrigeration in buildings and commercial equipment. Work ranges from installing split air conditioning units in an office to commissioning a large-scale mechanical ventilation and heat recovery system in a new apartment block. Refrigeration engineers also work on commercial refrigeration for supermarkets, food storage, and industrial cold chain applications. F-Gas certification is required for working with refrigerants. The sector increasingly overlaps with heat pump and low-carbon HVAC installation.
Why this career is resilient
Climate change is driving new demand for cooling in UK buildings — a market that barely existed a decade ago. The building decarbonisation agenda requires mass installation and servicing of heat pump and MVHR systems. F-Gas certification creates a barrier to entry that protects qualified engineers. Refrigeration is critical infrastructure for food supply chains and pharmaceuticals.
A typical day
A commercial HVAC day might involve an early-morning refrigeration fault-call for a supermarket (before opening), a mid-morning planned service of a rooftop air handling unit, and an afternoon first-fix installation of a VRF system on a new-build site.
Routes in
Apprenticeship
Earn while you learn: work with an employer and study part-time, leading to a nationally recognised qualification. Typically funded by the government and your employer.
Full-time college course
Study full-time at a further education college, usually for 1–2 years. You will need to fund yourself or apply for a student loan (available for Level 4+ courses).
Pay and costs
Earning potential: Employed HVAC/R engineers earn £32,000–£50,000. Self-employed engineers and contractors commonly earn £50,000–£75,000. Specialist refrigeration or low-carbon engineers command premium rates.
Training costs: Apprenticeship: no upfront cost. College: £2,000–£4,000 for Level 2 + 3. F-Gas Category 1 certification: £400–£700. Tools: £1,000–£3,000 for personal kit.