See What Others Have to Say


‘All our staff found the training session very useful (and entertaining). It gave them an understanding of the dangers of radiation in general, and put their minds at rest regarding the safety of our machine and techniques. From a management perspective the continued advice regarding compliance matters has been very appreciated’.

Dr Dean Tait
Animal Welfare League, Ipswich Community Vet Clinic

‘Sieverts (William Tan) attended site at short notice to assist our business in a very professional manner’.

Richard Sowden
Brisbane Airport Corporation


‘Great fast and efficient service’.

Kerry Hoffman
Dental Elegance

‘The scope of service has been well delivered, and professional’.

Filippo Silicato
Atco Structures & Logistics


‘William Tan came to our practice to help me with the Radiation Application. He was excellent, and very quick yet very thorough. He then came back to do the certification of our machines and did this at a time convenient to us with minimum inconvenience. I would certainly consult recommend William in the future’.

Lyn Gilbert
Practice Manager
Complete Dental Wynnum


‘We used William Tan from Sieverts for our shielding design for our x ray room and also for compliance testing of room and generator upon installation. Wil was both professional and timely with any queries. I would be happy to recommend Wil to any prospective clients’.

Dr. Kent Murphy 
Bonfire Health Chiropractic


‘Thank you for a providing a profession service’.

Dr. David Moroney

Dental Central


‘William streamlined our requirements and provided us with exceptional service and professional support. Thank you!’.

Robyn Tisdale
Sure Dental

‘I was quite pleased with the service and will continue to use sieverts services’.

Dr. Michael Chong
The Paediatric Dental Practice


‘I am very pleased with the professional and flexible approach of Sieverts Radiation Protection Consultancy in certifying the radiation premises at Australia Fair Dental Practice. As the Practice Manager I can rest assured that we provide highest radiation safety to our patients. Furthermore, I find that their prices are highly competitive’.

Ms Margarete Lehmann
Practice Manager,
Australia Fair Dental Practice, Southport.


‘Sieverts Radiation Protection Consultancy has provided my dental practice a high level of service in design and compliance testing for both intra oral x-ray machines and rooms. I found that their approach was professional and exceptional’.

Dr Chris Marty
C & T Marty Dental Practice, Narangba


‘Sieverts Radiation Protection Consultancy has provided an excellent and professional service to ensure my dental practice is in compliance with the state legislated Radiation Safety Act 1999. I am particularly pleased with the shielding design for my newly installed intra-oral x-ray dental practice’.

Dr David Bodie
Bay Dental Care, Hervey Bay


‘I find that the quality of service provided by Sieverts Radiation Protection Consultancy to be exceptionally high in performing compliance testing of both my intra oral dental apparatus and premises. The staff has provided me a detail explanation of what was being done and why. I can rest assure that my radiation practice is of the highest standard in safety and quality’

Dr Richard Heymann
Star Dental, Fortitude Valley


‘We recently had occasion to engage the services of Sieverts Ratiation Consultancy. We found William Tan to be very helpful and informative. His assistance and willingness to help was fantastic. His availability was immediate and every aspect of the service was completed in a professional manner from start to finish.

We would not hesitate to engage Sieverts Radiation Protection Consultancy again’.

Daryl Holmes
Managing Director


‘We were very happy with the prompt ,efficient and competent service delivered by William in processing our application for Xray equipment at our premises at 60 Wises Rd Maroochydore. We will recommend him to our peers and will certainly use him again if needed. Yours sincerely’.

Dr.Dieter Klein and Ian Crump
Avenue Dental Maroochydore


‘We now have 8 surgeries located within QLD and recommend William Tan to our Practice Principals for consultancy on a regular basis.
The service supplied to Dental Corporation by Sieverts is extremely proficient, reliable and is beyond and above our expectations of quality customer service’.

Anita Sardelich
Practice Support Manager
Dental Corporation Pty Ltd

‘We are delighted with the attitude, the professional manner in which the job was performed and the short turnaround for all the appropriate paperwork and certifications. We have no hesitation in recommending this company for their competency and reliability’.

Heather Silkstone
North Bundaberg Vet Surgery Pty Ltd


‘Sieverts Radiation Consultancy has conducted many compliance tests and licence applications across the group of Dental Partners practices in QLD. William Tan consistently provides a very high level of service. We have heard from each practice he has visited and all have informed Dental Partners, of his brilliant service and great professional approach. Dental Partners are more than happy to use William Tan for any radiation needs in the future’.

Tana Mawdsley
Assistant Operations Manager
Dental Partners


‘I am happy to have had the help of William Tan from Sieverts in attaining the licence requirements for a Diode Laser apparatus. My positive experience was the professionalism and knowledge of William. If I were to purchase another radiation apparatus, I will save myself headaches, money and a lot of time by engaging Sieverts services again’.

Dr Steven Clubb
Principal Dentist
Clubb Dental, Indooroopilly


‘Sieverts Radiation Consultancy and William Tan were highly professional and their experience and prompt efficient service helped to guide me through the radiation health and safety component of my recent dental practice fitout. I would definately recommend their quality service’.

Dr Natalie Bowen
Principal Dentist
Murrumba Downs Family Dental


‘I met William from Sieverts Radiation Consulting recently at the  Brisbane Pan Pacific Vet Conference and was impressed by his helpful approach. Shortly after we engaged him to undertake the re-licensing of our xray machine and premises. William answered all questions with a minimum of fuss and walked us through the fairly  complex licensing procedural steps for machine acquisition, testing and premises respectively. I can highly recommend him’.

Dr Scott Snellgrove
Sinnamon Park Veterinary


‘Qscan has been fortunate to use the services provided by William Tan of Sieverts Radiation Protection Consultancy over the last 12 months. William been accommodating and fitting around Qscan’s schedules. He has integrity and is always methodical, efficient and his service is of the highest quality.

Without question, I would recommend Sieverts’.

Ms Tuesday Cole
QScan Radiology Clinic


‘Sieverts helped my office through every step of the process from application to certification in order to get the x-ray unit in my chiropractic practice up and running. Exceptional service, and strongly recommended’.

Dr Jeffrey Hannah
Atlas Health Australia North Lakes


‘William Tan was a fantastic help. He was very patient and helpful at explaining everything’.

Stacey Sinclair
Smile Bright Dental


‘Sieverts made the process of dealing with the sometimes stressful radiography compliance process as pain free as possible, always a positive in the dental industry! Clear communications, self explanatory paperwork requirements, on time and pleasant to deal with. Will use again’.

Dr Martin Webb
Banksia House Dental Surgery


‘Sieverts has conducted Queensland health testing on L3 cabinet x-ray machines throughout Queensland, I found Sieverts to be reliable, punctual and efficient. I would have no issues with recommending Sieverts to anyone and look forward to using Sieverts in the future for all our testing needs’.

Simon Seears
L3 Communications- Security and Detection Systems


‘William Tan was very knowledgeable. Very professional and courteous. He was easy to work with. – Dr Vas Srinivasan, Dental Specialist Centre’.

Dr Vas Srinivasan
Dental Specialist Centre


‘William Tan from Sieverts was extremely helpful and was always just a call away. His expert knowledge and advice successfully allowed me efficiently jump through all of the hoops to get my x-ray machine up and running. Thank you. – Jeremy Thomas, Grays Chiropractic Northern Beaches’.

Jeremy Thomas
Grays Chiropractic, Northern Beaches


‘Sieverts ensured an effortless journey when setting up our new practice – Dr Russell Woods, Emu Park Dental’.

Dr Russell Woods
Emu Park Dental


‘Thanks for organizing every thing so promptly. Much appreciated. – Dr Anna Song, Wishart Family Dental’.

Dr Anna Song
Wishart Family Dental


‘William Tan is very approachable, very experienced, knowledgeable and professional. I highly recommend him’.

Dr Michael Tawil
Durack Medical Centre


‘I have had the pleasure of working with William Tan from Sieverts for over 4 years, during this time he has assisted a large number of our customers in the area of radiation protection and compliance.  William has always been very professional in his dealings, is able to help customers step by step through all processes, offers timely and efficient advice and most importantly is able to provide honest and accurate advice for the given State and regulation.

I would certainly recommend William Tan and Sieverts, as I regularly do, to any person looking for professional guidance in relations to radiation shielding, protection and compliance’.

Brett Butcher
Body Logic/Henry Schein Halas



‘Thank you so much for the great job you did with validating our xray system to meet radiation safety standards. You were very prompt with the certificates of compliance as well and we thank you for that. The best part for us was the way you went about your business without interrupting our day to much! You were fast and efficient and we really couldn’t have asked for more than that’.

My Dentist NQ

‘I have always found Will to be professional and courteous. He gets his work completed efficiently and works well with the airport team’.

Toni Limon
Gold Coast Airport

‘We are really satisfied with your service. Thank you!’.

Taewon Kong
Chemtronics Biomedical Engineering

‘I found William Tan of Sieverts to be very professional, informative and accommodating. Importantly for myself, I found the customer service received was extremely good and dealing with this company was a pleasure’.

Jill Taft
It’s Your Smile Dental Group

‘Good, Professional and prompt service’.

Bhaoleen Kohli
Mt Gravatt Dental

‘I loved the fact we were contacted prior to our licenses’ expiring etc to organise an appointment for someone to come out to us.. then I have nothing but a HUGE thank you to Wil Tan for ALL his wonderful help & continuing help.. don’t know what I would do without him!!!! Thank you very much’.

Jana Bosher
Practice Manager, Wattle Street Dental Cooroy

‘Good and pleasant service’.

Dr Claude Lacasse
Australia Zoo Wildlife Hospital

‘Very satisfied with Will Tan Service and his advice for two projects and we certainly use Sieverts service in our future projects’.

Merv Shirazi
Machinery Automation Robotics

‘I required some testing on our equipment as soon as possible and the team at Sieverts was able to efficiently and quickly provide a solution and quote. William and Jackie were both great and are clearly professionals in this field’.

Daniel Ferris
QLD Corrective Services

‘I found Sieverts to have all their systems in place to delivery a quick and timely outcome to meet my requirements with a minimal of fuss. They were very responsive to my needs and requirements.’

Dr Harminder Singh
Heritage Dental Group

‘When I booked the services the receptionist was very helpful and did what they said they would. I also found William Tan very professional and knowledgable. We will definitely use your company in the future – I wish I had known of what radiation help and services could have been provided last year when embarking on obtaining another radiation licence for laser.’

Lesley Henderson
Peninsula Private Hospital

‘I must compliment Wil for his efficiency and professionalism. Thank you so much for your help and quick response at such a short notice. I look forward to using you again in the future!’

Roza Igeska
Custom Design Fitout Pty Ltd

‘Very professional service. William is very helpful and explains the process and requirements in a detailed manner. Particularly appreciate the constant communication upheld by everyone from the admin to the technicians. Very easy to see where the value for money is.’

Narelle Bridge
Care Dental Emerald