Commercial Pipefitter

About the role

Insite Energy is a fast‑growing, forward‑thinking utility services provider specialising in metering, billing, payments, and site management for district heating and heat network schemes across the UK. As demand for sustainable energy solutions continues to rise, we are expanding our expert Field Operations team and are looking for an experienced Commercial Pipefitter to play a key role in delivering high‑quality mechanical installations across our portfolio.

This senior, field‑based position is ideal for a highly competent and self‑sufficient engineer with strong experience in commercial pipework systems, spanning steel, copper, and plastic installations across medium and large‑diameter systems. You’ll take full ownership of mechanical installation projects from initial site assessment through to installation, testing, commissioning support, documentation, and final handover.

You’ll be at the forefront of maintaining exceptional standards of workmanship, safety, compliance, and customer satisfaction across district heating plant rooms, metering infrastructure, and wider energy network projects. If you thrive in a hands‑on environment, enjoy technical problem‑solving, and take pride in delivering high‑quality mechanical work, this role offers the autonomy, variety, and progression you’re looking for.

Location and working hours:

• Full-time position (37.5 hours per week).
• Field-based role working across commercial and residential sites throughout the UK.
• Working hours may be scheduled anytime between 08:00 and 20:00 depending on operational requirements.

Required skills and attributes:

• Strong commercial pipefitting and mechanical installation experience.
• Proven experience working on commercial heating, LTHW, CHW, or district heating systems.
• Strong experience working on medium and large diameter commercial pipework systems.
• Experience working with multiple pipe materials including steel, copper, and plastic systems.
• Competent in multiple jointing methods including press-fit, threaded, soldered, and flanged systems.
• Welding experience desirable.
• Ability to safely manage and coordinate welding activities essential.
• Experience planning and managing large-scale drain downs and system isolations.
• Strong understanding of commercial mechanical systems and plant room environments.
• Ability to independently scope and specify requirements for commercial mechanical works.
• Experience producing professional technical reports and scope documentation.
• Heat meter installation experience highly advantageous, particularly DN100 flanged meter.
• Knowledge of heat meter commissioning and communications systems advantageous.
• Strong fault-finding and problem-solving capability.
• Good understanding of Health & Safety requirements within commercial mechanical environments.

Qualifications

• NVQ Level 2 or 3 in Plumbing & Heating or Mechanical Engineering desirable.
• CSCS card essential (or ability to obtain).
• IPAF/PASMA advantageous.
• Hot Works training advantageous.
• Health & Safety qualification desirable.
• Full UK driving licence essential.

Benefits:

• Salary:  Competitive salary, based on knowledge, skills and experience.
• Holiday Allowance: 26 days of holiday per year (including birthday leave) plus English bank and public holidays, plus an additional day of Birthday leave.
• Pension Scheme: Employer pension contribution matched at 4%.
• Employee Assistance Programme (EAP): Free, confidential support available for personal and professional challenges.
• Corporate Social Responsibility (CSR) Programme: "DO RIGHT WITH INSITE" provides up to 2 paid days off per year for volunteering with company-led initiatives. Additional information can be viewed here
• Social Events: Regular company social events, including an annual Summer Party and Christmas Party.
• This benefits package offers a vibrant and supportive work environment, with opportunities for professional growth, work-life balance, and community engagement.

About Insite

Established in 2009, Insite Energy is a dynamic, fast-growing company that provides services to heat network suppliers in the UK. The services provided include metering & billing of residential customers, the installation (and retrofit) of credit billed and pay-as-you-go equipment, and ongoing maintenance and management of the heat network schemes.

We pride ourselves on our commitment to working as one team to put the customer and client first, delivering a reliable, competitive, and professional service. We are tireless in our efforts to be the best at what we do, which is reflected in our Trustpilot rating.  With just over 90 current employees, we are small but mighty, delivering more by working together.

At Insite Energy, we embrace diversity and inclusion. We value all backgrounds, identities, and experiences. We're committed to providing equal opportunities for all and offering reasonable adjustments to ensure accessibility and inclusivity throughout the application process and in the workplace.

Our Values: 

Community

Innovation

Excellence

Sustainability