Junior Pre-Commission Cleaning Engineer
Junior Pre-Commission Cleaning Engineer

Junior Pre-Commission Cleaning Engineer

Full-Time 30000 - 42000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Pre-commission cleaning of HVAC systems and supporting senior engineers on-site.
  • Company: Join CTS, a leading specialist in HVAC commissioning and water treatment.
  • Benefits: Competitive salary, certification support, and long-term career progression.
  • Why this job: Kickstart your engineering career with hands-on experience in a dynamic environment.
  • Qualifications: 1-2 years in building services; keen to learn and reliable.
  • Other info: Opportunities to advance into commissioning or water treatment pathways.

The predicted salary is between 30000 - 42000 £ per year.

Commissioning Technical Services (CTS) is one of the UK’s premier specialists in HVAC Commissioning, Commissioning Management, and Water Treatment. Based in London, we pride ourselves on our professional, high‑quality service delivered by a highly trained and experienced team. We provide exceptional solutions to clients across the UK and internationally, focusing on efficiency, expertise, and client satisfaction in every project. CTS is growing and seeking skilled Pre‑Commission Cleaning Engineers to support HVAC system performance across major commercial projects. If you’re early in your building services career, we want to hear from you.

Location: London & Home Counties | Central England | West of England | Europe

What you’ll be doing:

  • Pre‑commission cleaning of closed water systems
  • Flushing, dosing & filtration setup under supervision
  • Sampling, chemical treatment & system water quality testing
  • Interpreting method statements and system schematics
  • Supporting senior engineers onsite and improving competency
  • Preparing documentation and basic progress reports

Requirements:

  • 1–2 years relevant building services or flushing/cleaning work
  • Good understanding of LTHW/W system layouts preferred
  • Keen to learn, reliable, mechanically capable
  • Full driving licence and willingness to travel across regions

Benefits:

  • Full development into a competent Pre‑Commission Engineer
  • Certification support toward industry bodies (BESA / CSA / BSRIA / WMS)
  • Exposure to commercial, data centre & large‑plant installations
  • Competitive salary, benefits & long‑term progression
  • Opportunity to move into commissioning, water treatment or TAB pathways

If you’re ready to develop within Pre‑Commission Cleaning, CTS would like to hear from you. Apply via LinkedIn or email your CV to: enquiries@cts-ltd.com

Junior Pre-Commission Cleaning Engineer employer: Commissioning Technical Services

At Commissioning Technical Services (CTS), we are committed to fostering a supportive and dynamic work environment that prioritises professional growth and development. As a Junior Pre-Commission Cleaning Engineer, you will benefit from comprehensive training, certification support, and the opportunity to work on diverse projects across London and beyond, all while being part of a dedicated team that values expertise and client satisfaction.
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Contact Detail:

Commissioning Technical Services Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Junior Pre-Commission Cleaning Engineer

✨Tip Number 1

Network like a pro! Reach out to people in the HVAC industry, attend events, and connect on LinkedIn. You never know who might have the inside scoop on job openings or can refer you directly.

✨Tip Number 2

Prepare for interviews by researching CTS and understanding their projects. Show us that you’re genuinely interested in what we do and how you can contribute to our team.

✨Tip Number 3

Practice your technical skills! Brush up on your knowledge of LTHW/W system layouts and be ready to discuss them. We love candidates who can demonstrate their mechanical capabilities.

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, it shows us you’re serious about joining our team at CTS.

We think you need these skills to ace Junior Pre-Commission Cleaning Engineer

Pre-Commission Cleaning
Flushing
Dosing
Filtration Setup
Water Quality Testing
Method Statement Interpretation
System Schematics Understanding
Documentation Preparation
Progress Reporting
Mechanical Capability
Reliability
Driving Licence
Willingness to Travel

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights relevant experience in building services or any related work. We want to see how your skills align with the role of a Junior Pre-Commission Cleaning Engineer, so don’t hold back on showcasing your mechanical capabilities!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to express your enthusiasm for the role and the company. Let us know why you’re keen to join CTS and how you can contribute to our high-quality service.

Show Off Your Willingness to Learn: Since this is an entry-level position, we’re looking for candidates who are eager to learn and grow. Mention any relevant training or certifications you’ve completed, and highlight your readiness to develop into a competent Pre-Commission Engineer.

Apply Through Our Website: We encourage you to apply directly through our website for a smoother application process. It’s the best way for us to receive your application and get you one step closer to joining our fantastic team at CTS!

How to prepare for a job interview at Commissioning Technical Services

✨Know Your Basics

Make sure you brush up on your understanding of HVAC systems and pre-commission cleaning processes. Familiarise yourself with terms like LTHW/W system layouts, flushing, and chemical treatments. This will show that you're not just keen to learn but also have a solid foundation.

✨Show Your Enthusiasm

During the interview, express your eagerness to grow in the role. Talk about your passion for building services and how you’re excited about the opportunity to work under experienced engineers. A positive attitude can really set you apart!

✨Prepare Questions

Have a few thoughtful questions ready to ask your interviewers. Inquire about the types of projects you'll be working on or how they support professional development. This demonstrates your interest in the company and the role, plus it gives you valuable insights.

✨Highlight Relevant Experience

Even if you have limited experience, think about any relevant projects or tasks you've completed in the past. Be ready to discuss how these experiences have prepared you for the role of a Pre-Commission Cleaning Engineer. Specific examples can make a big impact!

Junior Pre-Commission Cleaning Engineer
Commissioning Technical Services
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