Construction Assurance Apprentice Level 4

Start your Construction career with Thames Water 

Kick‑start your future as a Construction Assurance Apprentice, supporting the UK’s largest water and wastewater provider. You’ll support projects through design, build, commissioning, and aftercare—helping integrate new assets smoothly into day‑to‑day operations. 
 
What you’ll do: 

• Support construction assurance to meet time, cost, and quality targets. 
• Assist with pre‑construction reviews and readiness checks. 
• Monitor contractor safety, environmental compliance, and asset standards. 
• Help resolve site issues, non‑conformances, and deviations. 
• Work with Operations Readiness teams to ensure smooth asset integration. 
• Help prepare and review RAMS, TWOSAS, and permits. 
• Take part in audits and performance reviews, driving improvement. 
• Support planning, lookahead meetings, commissioning, and aftercare. 

  
Where you will work:  

Location: Maplelodge WD3 9SQ

Hours: 36 hours a week across four working days plus one off-the-job training day,  

Start date: Sept 2026 
 
Training and qualification: You’ll study with University of Built Environment, one of the UK’s leading training providers. Your training includes virtual sessions each week, as well as live seminars and recordings; tasks and learning resources are set on the VLE. 

Qualification:  Level 4 Construction Site Supervisor Standard- Certificate of Higher Education Construction & Built Environment 

Duration: Permanent contract with a 42-month structured programme 
  
What you should bring to the role:  

• Has GCSE Maths and English (grade 9-4 / A-C)  
• 64 UCAS tariff points or equivalent  
• Full UK driver's license needed, if using own vehicle will need business insurance  
• Can manage their time well and stay organised  
• Is passionate about learning and aligned with Thames Water’s goals for the future  

  
What’s in it for you?  

• Excellent salary: £22,500 
• Annual Leave: 24 days holiday per year increasing to 28 with the length of service (plus bank holidays) 
• Performance-related pay plan directly linked to company performance measures and targets 
• Generous Pension Scheme through AON 
• Access to lots of benefits to help you take care of you and your family’s health and wellbeing, and your finances – from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance. 

Find out more about our benefits and perks 

Who are we? 

We’re the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It’s a big job and we’ve got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come. 

Learn more about our purpose and values 

Working at Thames Water 

Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you’ll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits. 

If you’re looking for a sustainable and successful career where you can make a daily difference to millions of people’s lives while helping to protect the world of water for future generations, we’ll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet. 

Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more. 

We’re committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that’s extra time, accessible formats, or anything else just let us know, we’re here to help and support. 

When a crisis happens, we all rally around to support our customers. As part of Team Thames, you’ll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It’s also a great opportunity to learn more about our business and meet colleagues. 

Disclaimer: due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.