Professional Legionella Risk Assesment,

Contact us, we are here to help:

Whatever your requirements please don't hesitate to contact us:

By telephone:
Office: 0113 2760 298
Training: 07833 914 357 Karl

Remedial works: 07341 819 604 Lucas

Microbiological analysis, water testing: 07975 566 561 Thomas

By email: General enquiries

By post: Office 2713, Sugar Mill Business Park, Oakhurst Avenue,

Leeds, West Yorkshire LS11 7HL

Sat Nav: Please use postcode LS11 7LW

Directions: Click here to download instructions

By Road:

View Larger Map

Registered Company (England & Wales). Registered Office: Unit 2713, Sugar Mill, Oakhurst Avenue, Leeds LS11 7HL. Registration Number 7050556. Email:

I would like to commend Karl Collingwood –Thirlway as a first class legionella control specilaist. I have known and had work carried out by Karl since 2003 when his legionella risk assessment of a complex site in Halifax was very good. The quality and attention to detail was noticeable throughout the documentation and his approach to the works. I am confident that any Council or other organisation that chooses Archer & Stone (and especially Karl) to do auditing services will be pleased with their decision.

Rob Bottomley, Calderdale Council

Subscribe to our newsletter