Our client, a leading provider of comprehensive in‑house mechanical design and installation services for HVAC systems to major Tier 1 contractors, is seeking an experienced Mechanical Engineer to join their growing London-based team. The Company: With a pedigree of completing high end HVAC projects for leading Tier 1 contractors the company prides itself on being a leader in the HVAC field. They currently operate from locations throughout the UK – Bristol, Cardiff and London and provide full inhouse mechanical design through inception to project completion. On Offer: * Competitive Basic Salary £40,000 - £50,000 (Depending on Experience). * Overtime (available all year round). * Travel Paid to and from site. * Stand by allowance for call out. * Full equipped company van. * Mobile Phone & Tablet * Pension, Healthcare & 25 Days Holidays + Bank Holidays * Company uniform * Training Purpose of the Mechanical Engineer As a Mechanical Engineer you will deliver high‑quality service, maintenance, fault diagnosis and repair across a wide range of air conditioning and chiller systems for commercial and industrial clients. The engineer plays a key role in ensuring reliable system performance, strengthening long‑standing customer relationships, and upholding the company’s reputation for exceptional technical standards and first‑class service. Operating across the London / M4 Corridor area, the role supports turnkey project delivery while contributing to the continued growth and success of the business. Key Responsibilities of the Mechanical Engineer * Deliver service, maintenance, fault diagnosis and repair across VRV/VRF systems, split units, chillers, AHUs and cold rooms. * Attend commercial and industrial client sites across London and the M4 corridor, ensuring timely and professional support. * Provide high‑quality technical workmanship that reflects the company’s reputation for first‑class service. * Build and maintain strong customer relationships through clear communication, reliability and problem‑solving. * Complete all required documentation, reporting and compliance tasks, including F‑Gas responsibilities. * Support turnkey project delivery, contributing to installation, commissioning and system optimisation when required. * Identify faults, propose effective solutions and ensure systems are restored to optimal performance. * Maintain company equipment, van stock and tools to a professional standard. * Work collaboratively with the wider engineering team and regional offices to ensure smooth operational delivery. * Uphold all health & safety, environmental and industry regulations while on site. * Participate in ongoing training and development to maintain technical mastery and support company growth. To be Considered for the Mechanical Engineer * Proven experience in servicing, maintaining, fault finding and repairing air conditioning systems. * Strong technical capability across VRV/VRF systems, split units, chillers, AHUs and cold rooms. * 2079 Safe Handling of Refrigerants (F-Gas) CAT-1. * NVQ Level 2 or Level 3 in Air Conditioning & Refrigeration (or equivalent). * Full UK driving licence. * Based within the London area and able to attend sites across London / M4 corridor. * Comfortable working independently and managing workload across multiple client sites. * Experience with commercial plantroom equipment (pumps, valves) advantageous but not essential. * Apprenticeship within the air conditioning industry beneficial but not mandatory. For more details, contact Willis Global - Experts in Recruiting