Setting the Standard for Water Jetting Safety

Setting the global standard for training, safety standards and operational excellence in high-pressure water jetting.

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Latest Safety Alert: High pressure water jetting foot injury

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What we do

Championing our industry and our members

The Water Jetting Association (WJA) is the trade body that represents organisations involved in all aspects of water jetting, from pressure washing to ultra-high pressure water jetting.

We work with contractors, manufacturers, equipment suppliers, training and providers, and government bodies.

  • Promoting our industry-leading code of practice
  • Providing high quality accredited training
  • Giving our members a voice across our industry
More About Us
40+ Years of Industry Leadership
Membership

Join the WJA

Join us and benefit from access to the WJA Code of Practice, plus expert technical support, free legal and business advice, industry recognition for setting trusted standards, and much more.

Become a Member Member Benefits

Member Benefits

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Audited member scheme Audited member scheme

WJA water jetting training courses 

The WJA is the largest provider of water jetting training in the UK, accredited by City & Guilds. Our courses are also delivered internationally, most notably in the oil and gas production areas of the Middle East and North Africa.

1 day

Safety Awareness

The mandatory class-based course required for all water jetting operatives before taking specialised practical modules.

1 day

Practical Water Jetting Modules

Modules that provide practical hands-on instruction and assessment for a range of water jetting techniques.

1 day

Pressure Washing

Delivering instruction on operational safety and productivity in the use of commercial pressure washing systems.

New

New courses for 2026

The WJA is launching an exciting new programme of City & Guilds accredited courses for water jetting and non-water jetting skills.

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Next available course

Safety Awareness & Surface Preparation

25 Aug 2026 - 26 Aug 2026 Rochford 2
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Code of Practice

The WJA Code of Practice represents the most detailed and advanced set of water jetting standards in the industry.

Safety is everything the WJA stands for and The Code of Practice directly informs the content and learning objectives of our training courses.

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WJA Code of Practice

Industry News

Insights, updates and innovations in water jetting.

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Member Spotlight – Rioned Water Jetting Association

Member Spotlight – Rioned

July 23rd, 2026

Rioned UK Sales Representative Billy Rowan Company name: Rioned UKCompany representative: Billy RowanJob title: UK Sales Representative What services do you deliver to the water jetting industry? Rioned designs, manufactures, supplies and supports professional drain and sewer cleaning equipment for contractors, utilities, local authorities and service businesses across the UK and Ireland. Our range includes […]

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WJA Member Spotlight – MD Services LTD Water Jetting Association

WJA Member Spotlight – MD Services LTD

July 17th, 2026

Company name: M D Services LtdCompany representative: Christina HutchisonJob title: Executive Director What services do you deliver to the water jetting industry? We deliver WJA City & Guilds-accredited water jetting courses: · Safety Awareness· Drain and Sewer· Drain, Sewer and Gun· Water Jetting Refresher· Pressure Washing We also provide tailored consultancy support and solutions for […]

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Training Focus – the new WJA Drain CCTV course Water Jetting Association

Training Focus – the new WJA Drain CCTV course

July 15th, 2026

The Water Jetting Association now offers drainage contractors the opportunity to up-skill their operatives with the UK’s first accredited training course for CCTV drain surveying. The new WJA Drain CCTV course is accredited by City & Guilds and delivered by WJA-approved training instructors to the same high standard as the association’s water jetting training programme. […]

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Member Testimonials

Trusted by industry leaders worldwide.

Being a WJA member helps us show we set high standards, which is important when working for local councils. We’ll also make sure our operatives receive WJA pressure washing training.

Simon Tuke

Director, No Graffiti

The WJA is the recognised representative organisation for the water jetting industry and promotes best practice, so we need to lead by example by being part of it.

Brian Swankie

Specialist Services Department Manager. Bilfinger UK

The WJA has been very helpful with technical information. If I ask a question, I get an answer quickly. It’s been very impressive. I’m definitely glad we’ve joined the association.

Andy Couldrey

Owner, 1066 Drainage Plumber Services

The WJA has a proven track record in raising the safety and productivity standards of water jetting through its codes of practice and training programme. It’s leading the way in our industry. If you’re serious about water jetting you have to be in it.

Scott Wharton

Director, CH Environmental Services

We’re pleased to be a WJA member. It helps define us as a business, and the expert advice the WJA can give can be very useful.

Andy Welsh

Director, Premiair Plant Hire

We want to further develop our pressure washing training offer, and being a member of the WJA makes absolute sense to help us do that.

Richard Selvestraitis

Director, Ryno Training

Contact Us

Have questions about training modules or membership benefits? Our team is here to provide expert support.

Headquarters

The Engine House, 2 Veridion Way, Erith, Kent, DA18 4AL

WJA team in the field