Mortgages completed by PMS Mortgage Club and the Sesame network reached the highest level for a decade in 2018 after rising 12 per cent.
According to Sesame Bankhall Group, combined mortgage completions last year increased to £41.9bn, a rise of £4.4bn when compared with 2017 and the highest since 2008.
Meanwhile, protection annual premium income via PMS and Sesame grew by 8.5 per cent last year to £69.1m and general insurance policies written rose by 14 per cent.
Martin Schultheiss, group managing director at SBG, said: "These results mean that thousands of people have benefited from expert advice on what for many is the largest financial decision they will ever make.
"Key to our success in 2018 was playing to our strengths and enabling our members to tap in to the full depth of expertise, propositions and support available across our Sesame Network, PMS Mortgage Club and Bankhall brands.
"This is just the beginning and we are deeply committed to helping our members to future proof their businesses in a changing world."
Sesame Bankhall Group stated it is investing heavily in technology to improve the network for advisers.
"Professional advice remains the best way for consumers to secure the financial wellbeing of themselves and their families," Mr Schultheiss said.
"SBG supports over 10,000 advisers and we will ensure our member firms have all the tools they need to build and maintain healthy long-term customer relationships."
John Cowan, executive chairman at SBG, added: "We are living and working in a time of political and economic uncertainty, combined with increasing competitive pressures driven by new disruptive technology, which all serves as a wake-up call for our profession.
"From SBG’s perspective we are very confident about the future need for advice, the adviser community and the outlook for our group. However, in these challenging times it is critical that advisers remain close to their clients and evolve their businesses around client retention.
"We believe that technology will prove to be an enabler in this transition and, as a group, we are investing to help advisers so that both their customers’ experience and their own is greatly enhanced, thus allowing advisers the time to do what they are best at - advising clients."