Where Experience Meets Integrity
Mark One Financial Services was founded in 2008, but the foundations were laid many years earlier.
Before launching Mark One Financial Services, Mark Duguid started his career inside the banking world, working for Bank Of Scotland International Division. In 2005, Mark took the decision to pursue a career as a mortgage adviser and joined the Remax Mortgage Network. During that time, he was recognised as Top Mortgage Adviser in the network 3 years in a row! In the period with Remax, he helped clients navigate mortgages and protection in an industry that looked very different from the one we know today. Regulation was lighter. Consumer protection was limited. Advice often lacked personalisation and clarity.
Mark saw the frustrations people faced — the jargon, the uncertainty and the gaps in service. He believed clients deserved more. They deserved advisers who listened, explained and acted solely in their best interest.
With that vision, Mark One Financial Services was created.
Mark has now spent over two decades guiding clients through the mortgage and protection process. Over that time, the industry has transformed. Regulation has strengthened. Standards have risen. Transparency has improved dramatically.
Where others saw challenges in this changing landscape, Mark saw progress.
Being part of that evolution — from the early days through to today’s more robust, client-focused framework — gives Mark One Financial Services a powerful advantage. We understand how the system works, why it works that way and how to navigate it smoothly on your behalf.
Since 2008, Mark One Financial Services has grown almost entirely through referrals and repeat clients. From first time buyers to seasoned property investors, and from young families to long-standing homeowners, we’ve remained committed to one thing:
Clear mortgage and insurance advice with your best interest at heart.
Our philosophy is simple.
It’s why so many clients stay with us for years — and why they recommend us to the people they care about.
Today, Mark One Financial Services continues to serve clients across Scotland and beyond with the same dedication Mark had on day one. We’re proud of our history, excited for the future and committed to offering advice you can rely on.
To be Scotland’s most trusted mortgage and insurance advisory service, known for delivering clear guidance, exceptional customer care and reliable financial solutions that help people secure their homes and protect their families with confidence.
To provide transparent, personalised mortgage advice and comprehensive insurance solutions that make every client feel informed, supported and valued.
We aim to simplify complex financial decisions, access the most suitable mortgage and protection products from across the market and deliver a first class service built on integrity, fairness, expertise and long term client relationships.
Expert Mortgage & Insurance Advice You Can Trust
With over 18 years of experience and access to a comprehensive panel of lenders, we deliver clear, reliable mortgage and insurance advice tailored to your needs. We focus on securing competitive rates, simplifying complex decisions, and guiding you from first enquiry to completion and beyond. Our clients choose us for our expertise, transparency, and consistent communication — and stay with us because we always put their best interest at heart.
Keeping Promises, Driving Prosperity
Our values shape how we work, how we support you, and the standard of service you can expect.
We prioritise your goals and make decisions that protect your best interest at every stage.
With our clear, jargon-free advice, you always understand your options and next steps.
We act with honesty and professionalism in every interaction, no exceptions.
We deliver reliable service, proactive updates, and long term support you can depend on.
We protect client information and maintain a high level of trust.
We work hard to secure competitive mortgage and insurance solutions that fit your life.
Meet Our Team
Our team consists of highly engaging professionals who will help you achieve your goals.

Mark Duguid has been advising on mortgages since 2005 and has 20 years experience in the field. Since 2008, Mark has earned 34 network related awards for mortgage advice and is a well renowned adviser in the central belt of Scotland.

Carol has worked with Mark One Financial Services since 2010. She runs the backroom, dealing with the mortgage and insurance processing plus all compliance needs, ensuring business flows through quickly and safely.

After working a successful career with Persimmon Homes, Louise became involved in the business in early 2013. She also works in the backroom and deals with the administrative side of the business, arranging clients reviews and managing campaigns.
Let Mark One Financial Services guide you with clear advice and unwavering support. Your best mortgage or protection solution starts with one simple conversation.