Our Journey
The journey of MARS Consultants began with Alexander Marsden's extensive experience in construction and environmental safety, particularly in the asbestos sector. Observing gaps in the industry, Alexander envisioned a consultancy that provides personal, face-to-face support, especially for individuals and small businesses, ensuring reliable, hands-on assistance in managing asbestos risks safely and confidently. At MARS Consultants, we fill the gap of larger consultancies who provide a one-size-fits-all service, we offer a reliable, hands-on approach to help people manage their asbestos risks safely and confidently.

About Alexander J Marsden
With extensive experience in the asbestos industry - beginning at the age of 20 - I’ve developed a strong foundation and a broad skill set as an asbestos consultant. My career started at ASKAMS Ltd as a trainee asbestos surveyor, where I earned my BOHS P402 qualification and quickly immersed myself in the field. Eager to grow and learn, I began assisting senior surveyors on more complex and high-risk sites, including schools, hospitals, prisons, and various commercial and industrial facilities.
As I gained confidence and deeper understanding of my responsibilities, I progressed through several companies - often due to acquisitions or closures. Eventually, I joined OHS Ltd, where I was appointed as a senior lead surveyor, taking charge of large-scale surveying projects. During this time, I expanded my qualifications by achieving the RSPH Level 3 in Asbestos Air Monitoring, which allowed me to carry out air testing and four-stage clearances. This added flexibility to my role and enhanced the value I brought to the teams I worked with.
My final move within the consultancy world was to Franks Portlock, where I began to seriously consider the possibility of becoming self-employed. I saw others successfully transitioning into freelance roles and subcontracting for consultancies, and it made me think - if they can do it, why can’t I? That mindset led me to take the leap and start something of my own.
After years of working hard and gaining experience across a range of environments, I felt the time was right to build something I truly believed in. That’s how MARS Consultants was born - founded on passion, determination, and a commitment to providing high-quality, personal asbestos risk management. I’m proud of how far I’ve come and excited for what the future holds.
Our commitment to your safety
MARS Consultants delivers a hands-on, personal approach to asbestos risk management, providing peace of mind throughout the process. We guide clients every step of the way, working closely with them and their contractors to ensure everyone remains safe and fully informed. Whether you're dealing with a collapsed ceiling or preparing for a major refurbishment project, we are committed to finding solutions where others may fall short.
Our future vision
Our vision is that MARS Consultants will continue to grow as a trusted name in the asbestos industry, by being the most dependable and approachable. We aim to expand our reach while staying true to our core values, building a skilled team committed to safety, transparency and client care. We envision that MARS Consultants will be a trusted provider of long-term asbestos management strategies, training and education, bridging the gap between regulation and real-world practice for homeowners, small business owners and community organisations. Ultimately, we want to be known for genuine care, deep expertise, and unwavering professionalism, leaving a lasting, positive impact on both the people we serve and the environments we help to protect.