FM Air Conditioning Engineer

Overview

Mobile AC engineer delivering maintenance & repairs for commercial HVAC systems

Key Responsibilities

• preventive maintenance
• reactive repairs
• hvac diagnosis
• component replacement
• compliance reporting
• client liaison

Tasks

This is a full-time, mobile role based across various commercial client sites. The engineer will travel between multiple locations daily, performing planned preventative maintenance (PPMs) and attending reactive repair callouts. Work will include out-of-hours support via a rota system and requires flexibility to respond to urgent issues as they arise. The Air Conditioning (AC) Engineer at PREAH Building Services is responsible for delivering planned preventative maintenance (PPM) and reactive repair services to a range of air conditioning systems, including chillers and refrigeration units, across commercial client sites. Operating within our Facilities Management Division, this mobile role involves daily travel between client locations to ensure HVAC and refrigeration systems operate efficiently, reliably, and safely. The AC Engineer plays a critical role in maintaining comfort, compliance, and client satisfaction, while representing PREAH’s high standards of professionalism and service. -Ensure all work is carried out in line with F-Gas regulations and health & safety requirements. -Complete job sheets, service reports, and compliance documentation accurately and on time. -Keep supervisors informed of job status, system issues, or additional work required. -Perform routine PPM tasks on split systems, VRV/VRF, and multi-split air conditioning units. This includes work on chillers and refrigeration equipment where required. -Maintain up-to-date knowledge of HVAC standards and manufacturer specifications. -Diagnose faults and carry out reactive repairs to restore system functionality promptly. -Provide technical support to junior team members and contribute to continuous improvement. -Maintain clear records of refrigerant usage and parts replacements for audit purposes. -Work cooperatively with other mobile engineers and support staff to meet service-level agreements. -Liaise with clients on-site in a professional and helpful manner. -Report any safety concerns or incidents to the FM Supervisor immediately. -Replace components such as motors, compressors, sensors, and control boards as needed.

Requirements

• brazing
• hvac
• f‑gas
• cscs
• nvq
• independent

What You Bring

-Proficient in brazing for assembly and repair of metal components. -Proven experience in commercial HVAC, chillers, and refrigeration system maintenance and fault diagnosis. -F-Gas Category 1 certification (2079). -Valid CSCS card and full UK driving licence. -City & Guilds or NVQ Level 2/3 in Air Conditioning & Refrigeration or equivalent. -Ability to work independently and manage daily schedules across multiple sites.

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Benefits

Working Conditions -Friendly, supportive work environment. -Opportunities for professional development and training. -Competitive salary and benefits package. -31 days annual leave per annum.

About Preah Building Services

-Founded in 2014 out of a commercial and industrial HVAC background, PREAH began as a single‑person venture. -Over a decade, it expanded organically to become a full in‑house M&E contractor delivering projects across Scotland and Northern England. -Self‑delivering mechanical, electrical, plumbing, HVAC, and refrigeration installation contracts for commercial and industrial clients. -Operates a 24/7/365 service desk and mobile engineer fleet, maintaining HVAC, refrigeration, catering, plumbing, and electrical systems. -Typical projects span retail, hospitality, healthcare, education, and industrial fit‑outs and refurbishments. -Offers renewable energy installations like biomass boilers, air‑source heat pumps, and solar thermal solutions.

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