Validation With Integrity

At T-SQUARED Validair, we provide reliable premium testing and consultancy support services. We always deliver. With our own network of qualified field service engineers, we offer our UKAS ISO 17025 (Lab No.4264) accredited testing services across the United Kingdom, Ireland and overseas. Meeting and exceeding customer expectations, where clean air contamination control is mission critical.

  • ISO17025 UKAS Accredited Clean Air Testing

  • Verification of Contamination Controlled Facilities & Equipment

  • Consultancy & Validation Support

  • Additional Support Services

Supporting Pharmaceutical, Biotechnology, Healthcare, Food and Engineering industries, delivering the greatest value and ensuring compliance.

Testing & Verification

  • Cleanrooms
  • Pharmaceutical Isolators and RABS
  • Unidirectional Flow Workstations

  • Microbiological Safety Cabinets

  • Fume Cupboards and LEVs

  • Operating Theatres, UCVs, Isolation Rooms and Specialised Critical Ventilation

  • Containment Suites

  • Compressed Gases

  • Critical Temperature & Humidity Control Chambers


  • Validation Documentation, Protocols and Qualification Support

  • GMP Advisory and Consultancy Services

  • Training and Development

Supporting Services

  • Re-Qualification and PPM Contracts

  • Routine Monitoring and Microbiological Sampling

  • Filter Management and Replacement

  • HVAC Commissioning and Balancing

  • Decontamination Service

Our Services

Every industry includes operations that demand cleanroom or contamination-controlled
environments. That’s where Validair’s expertise delivers.

Testing & Verification


Supporting Services


Over 30 Years of Experience

Our history extends back almost half a century with Diamond Scientific formed in 1974. Separately, Validair was founded in 1989 as an independent specialist cleanroom validation company. Diamond Scientific became part of the Validair Group in 2009, which proved to be a perfect fit. Validair has no less than 210 years of combined contamination-control and cleanroom experience in its team. That’s a great deal of knowledge made all the more valuable when set against our ethos of providing superior levels of quality service to all facility and equipment users.

Our Customers

Supporting top companies within the Pharmaceutical, Biotechnology, Healthcare, Food and Engineering sectors.

“I thought you might like some feedback from our MHRA inspection this week. The inspector was really impressed with the layout of your documents and how clear and concise they were. Thanks for all your help with this project: we’ve managed to sail through the inspection for the new facility and a lot of that was as a result of your documentation pack.”

Customer in Sunderland, QA Manager, Chemical Manufacturer

“Very many thanks indeed for all your hard work and invaluable project-inputs on our behalf, especially in view of recent personal difficulties for some of us which have sometimes curtailed our possible time-commitments. I am really grateful to you.”

Customer in London, Hospital

“A big thank you to the Chris and Kit for all their hard work over the last couple of days. Both assets and a real credit to Validair!
I look forward to welcoming them to site again next time.”

Customer in London, Two NHS Trust hospitals

“Firstly I just want to say a massive thank you to Nigel and Matt for everything they did for me. Their help is greatly appreciated and they were absolutely amazing. They are both really polite, easy to talk to and took time out of their day to explain to me in depth the different jobs they were doing and why. I really enjoyed working alongside and shadowing them both for the day. So thank you so much – I really appreciate your help.”

Customer in Sheffield, Validation Technician, Medical & Pharmaceutical Devices

“Firstly – a big thankyou to Ian, Chris and Matt for the help and advice given on our annual validation last week. It was much appreciated.”

Customer in Worksop, Medical Manufacturer

“We had Kit and Steven attend site to perform re-balancing and physical monitoring of the cleanrooms. They were excellent in the quality of their work and I am extremely pleased with the results. Both were exceptionally accommodating and focused on getting the job done, suggesting many improvements. Kit has a real can-do attitude in helping us to resolve problems while Steven’s knowledge around air-flow is exceptional .”

Customer in London, NHS Trust Hospital

“The engineers who attended were very professional, arrived on time and performed the work to a high standard.”

Customer in Deeside, Instrument & Calibration Technician, Medical Products & Technology

Latest News

This is the place to keep up to date with our news, observations, achievements and opinions. We also share our press releases here.

Load More Posts

Talk to Us

Please get in touch to discuss your exact requirements and allow us to offer the best solutions.

Contact Us