About the Role RG Setsquare is recruiting on behalf of one of the UK's most established independent building services and facilities management contractors - a business with over a century of heritage, a blue-chip client base, and a proven commitment to investing in the quality of its engineering teams. We are looking for an experienced Mechanical Fitter with a strong background in pipefitting and mechanical installations to join their mobile project delivery team on a permanent basis. Working across a varied portfolio of commercial sites - including corporate offices, public sector buildings, healthcare facilities, and high-profile private sector premises - you will be central to the installation and commissioning of mechanical systems as part of new works, refurbishments, and upgrade projects. This is a solid, well-rounded package: up to £38,000 base salary, company vehicle, and genuine overtime opportunities on top. What You'll Be Doing As a Mechanical Fitter, your day-to-day responsibilities will include: Installation of commercial pipework systems including LPHW, CHW, domestic hot and cold water, and steam - across new build, refurbishment, and upgrade projects Fabricating, cutting, threading, and joining pipework using a range of methods including press-fit, compression, welded, and soldered jointing Installing mechanical plant and equipment including pumps, pressurisation units, heat exchangers, fan coil units, AHUs, and associated valves and fittings First and second fix mechanical installation works on commercial projects, working to drawings, specifications, and installation programmes Commissioning and testing of newly installed mechanical systems, ensuring performance meets design intent and client specifications Working closely with project managers, other trades, and site teams to ensure installations are delivered on programme and to the required standard Identifying and reporting any site issues, design queries, or variations that may affect the installation Completing installation records, test sheets, and handover documentation accurately Working safely at all times in full compliance with current health & safety legislation, RAMS, and company proceduresWhat We're Looking For Essential: Recognised mechanical trade qualification - NVQ Level 2 or 3 in Mechanical Engineering, Plumbing, or Pipefitting (or equivalent time-served apprenticeship) Proven experience in commercial mechanical installations and pipefitting within a building services, M&E contracting, or FM environment Practical ability across a range of pipework jointing methods - including press-fit, compression, solder, and threaded connections Experience installing mechanical plant including pumps, FCUs, AHUs, heat exchangers, and associated pipework and valves Ability to read and work from mechanical installation drawings and specifications Comfortable working across multiple live commercial sites and coordinating with other trades Full UK Driving Licence Professional approach and strong communication skills when working on client sitesDesirable (not essential): Experience with welded pipework (MIG, TIG, or oxy-acetylene) CSCS card IPAF / PASMA (working at height) Any additional mechanical or plumbing qualificationsAbout Our Client Our client is one of the UK's leading independent building services companies, with specialist capabilities spanning mechanical and electrical engineering, facilities management, energy services, and water treatment. With over 100 years of trading history and long-standing relationships across the public and private sectors, this is a stable, well-respected, and genuinely established employer in the FM market. The business is committed to the development of its people - offering structured induction, an internal training Academy, funded qualifications, and real opportunities for career progression. Full details will be provided to shortlisted candidates. The Package Up to £38,000 per annum depending on experience and qualifications Company vehicle provided Fuel card Overtime available - a genuine opportunity to increase your earnings Company pension scheme Learning and development through the client's internal training Academy Funded qualifications and structured career development Long-term, stable employment with one of the UK's most established FM and building services contractorsHow to Apply This vacancy is being managed by RG Setsquare. To be considered, please submit your CV via CV-Library. Shortlisted candidates will be contacted directly by our team with full information on the client, the area covered, and next steps. RG Setsquare specialises in technical and FM recruitment across the UK, placing skilled trades and engineering professionals with leading contractors and service providers at every level. RG Setsquare is acting as an Employment Agency in relation to this vacancy