Industrial wastewater treatment plant
Est. 2004 — 20+ Years of Excellence

Two Decades of Engineering Excellence in Wastewater.

Since 2004, Moffatt Engineering has provided industry-leading mechanical engineering solutions across the UK, specialising in critical wastewater infrastructure, bespoke fabrication, and onsite maintenance.

20+ Years Experience
1000+ Projects Delivered
24/7 Support Available
UK East to West Coverage
Aerial view of wastewater treatment infrastructure
Who We Are

About Moffatt Engineering

Established in 2004, Moffatt Engineering has built a solid reputation as a leading provider of mechanical engineering services across the UK. With over two decades of experience, we have honed our expertise and expanded our capabilities to meet the diverse and developing needs of our clients.

Our Mission

To enhance the sustainability of our clients' operations through technical excellence and trust-based relationships.

Our Vision

To be the premier engineering partner for municiple and industrial clients across the UK, leading the sector in wastewater innovation and reliable maintenance.

What We Do

Our Services

Comprehensive mechanical engineering solutions for critical wastewater infrastructure across the UK.

Onsite Maintenance & Mechanical Services

  • End-to-End Solutions: Comprehensive system design, installation, and testing.
  • 24/7 Support: Reliable reactive maintenance and scheduled service contracts to keep sites operational.

Wastewater Aeration Services

  • Installation & Refurbishment: Specialised design and restoration of diffused air systems for optimal oxygen transfer.
  • Temporary Solutions: Rapid deployment of emergency aeration systems to ensure environmental compliance.

Digester Maintenance & Refurbishment

  • Mechanical Overhauls: Expert refurbishment of internal and external components.
  • Fabrication & Cleaning: Refurbishment of guide wheels, gas valves and full digester cleaning services using a tanker and screen.

Bespoke Fabrication

  • Industrial Steelwork: Custom access platforms, mechanical components, and structural steel built for harsh wastewater environments.
Industrial engineering site

Engineering Solutions You Can Trust

From concept to commissioning, we deliver precision-engineered solutions that keep critical infrastructure running.

Talk to Our Team
Our Work

Project Spotlights

Real-world engineering challenges solved with precision, expertise, and measurable results.

Aeration lane full refurbishment at wastewater treatment plant
Project 01

Aeration Lane Full Refurbishment

The Challenge

Deteriorated aeration lane infrastructure with fouled diffusers and failing pipework reducing treatment efficiency.

The Solution

Complete lane refurbishment including thorough cleaning, full replacement of air distribution pipework, and redoming with new high-efficiency diffuser assemblies.

The Result

Restored oxygen transfer performance, improved process compliance, and extended asset life by over a decade.

FST bearing repair and overhaul at wastewater treatment plant
Project 02

FST Bearing Repair & Drum Replacement

The Challenge

Failed centre bearing and collapsed drum impacting the site process capacity.

The Solution

Full replacement of bearing and drum with associated access scaffolding and safety measures.

The Result

Tank returned to full operation with smooth, quiet running and a significantly extended service interval.

Sand filter cleaning and refurbishment at water treatment works
Project 03

Sand Filter Cleaning & Refurbishment

The Challenge

Heavily fouled sand filter beds with blocked underdrains and degraded media causing reduced flow rates and compromised effluent quality.

The Solution

Full dewatering and excavation of spent media, high-pressure cleaning of the filter structure and underdrains, and recharging with graded filter sand to specification.

The Result

Full hydraulic capacity restored with consistently improved effluent quality meeting discharge consent standards.

Careers

Join the Team at Moffatt Engineering

We are looking for skilled mechanical engineers and fabricators who take pride in precision.

  • Work on critical national infrastructure.
  • Opportunities for specialised training and career progression.
  • Be part of a respected, close-knit engineering team.
Contact Our Recruitment Team
Moffatt Engineering team working on wastewater treatment site
Get In Touch

Contact Us

Have a project in mind or need urgent support? Reach out and one of our lead engineers will respond within 24 hours.

Phone

Contact our engineering team directly

Email

enquiries@moffattengineering.co.uk

Service Area

Full UK coverage

Response Time

Emergency support available 7 days a week