Coleman Diagnostics
Indoor Air Quality Assessment &
Psychrometric Calculator
Coleman Diagnostics
About us
Russell Rafton - Senior Surveyor
Dryfix Preservation Limited
Ross Charters - Senior Surveyor
Complete Preservation Limited
Russell Rafton - Senior Surveyor for Dryfix Preservation. Specialists in the diagnosis and repair of damp and timber related problems, and leak detection specialist.
Dryfix been established since 2008 and are a PCA (Property Care Association) Accredited firm. We are also registered with TrustMark, CHAS and ConstructionLine Gold approved.
We service domestic clients, home buyers, local councils and housing authorities and have worked on some of the North’s most prestigious heritage buildings. We’re a forward looking and innovative company specialising in accurate diagnosis and repair with thoughtful engineered solutions around a holistic approach where possible.
A 6 x Industry Award winning firm with the PCA, there's a reason we're Yorkshire's leading damp and timber specialists.
Ross Charters - Senior Surveyor for Complete Preservation. Ross has been surveying and repairing buildings for over 20 years. From quantitative damp diagnosis, CCTV drain surveys & mapping, thermal imaging surveys, ground penetrating radar surveys, leak detection, listed building surveys, to modern building defects, is just some of the surveys we offer.
Complete Preservation are proven qualified specialists, based in Trowbridge Wiltshire, and also cover the South West.
Graham Coleman
Batchelor of Science B.S.c (Hons), M.R.S.B Zoology inc, Applied Zoology.
Graham is a Biologist, Member of the Royal Society of Biology (M.R.S.B). He also has qualifications in Chemistry and Botany.
​
Since 1982 he has been in private practice (Remedial Technical Services) as an Independent Consultant specialising in Laboratory and Consultancy services examining dampness and timber infestation/rot problems in buildings; in addition to his research and analytical experience he has over 50 years of experience of practical scientific site investigations examining dampness and timber infestation problems, especially in recording and analysing materials, internal environment, and data for laboratory and other analyses.
​
During his career he has investigated many buildings and other structures including HMS Victory, The Great Hall at Westminster, King Arthur’s Round Table in the Great Hall at Winchester. This latter investigation resulted in the recorded author to a chapter in Professor Martin Biddle of Oxford University publication, King Arthur’s Round Table; an archaeological investigation’ (pub. Boydell)
​
Graham Coleman has also had a number papers published in technical journals and other publications concerning investigation of dampness, and measurement of moisture in building materials. He is the author of one of the definitive guides to dampness, ‘Guide to the Identification of Dampness in Buildings’ and was an invited member for the Government supported CIRIA ‘Review of Methods for Testing Moisture in Building
Follow our social
Unit 12 Pyramid Court
Rosetta Way
York
YO26 5NB