Pre-tax profit jumped 21% to £20.5m with as associated uplift in group operating margins to 3% from 2.5% previously.
During the year the group, which employs around 2,550 staff, operated across over 200 construction sites, developments and 5,852 facilities management locations throughout Scotland and England.
The group’s construction arm delivered stable revenue of £460m, while FM activities grew by a quarter to £118m of turnover.
Elliot Robertson, chief executive officer at Robertson, said: “The group continues to deliver improvement in line with our long-term strategy.
“We are pleased with a strong set of results in a challenging market, delivering quality of earnings, which builds on the progress made last year and reflects the diversity of our offering and strength in the marketplace.
“We are proud of our Climate Positive Status and by following our 2030 Responsible Business Strategy we have successfully reduced our carbon intensity by 67.7% over the last seven years, and will continue to seek new ways to increase our energy efficiency whilst decreasing our carbon footprint.”
He added: “We anticipate that in the coming year as we continue to face the challenges of the economic climate that project start delays caused by inflation may influence our next year’s results.
“However, we have been in operation for 57 years, facing numerous economic challenges along the way and we have confidence in our direction of travel as we continue to make positive growth and contribute to the UK economy.
“Our solid balance sheet and capital base, reinforces our confidence that we will perform in the line with our forecasts.”
Total year end cash slipped from £75m to £61m.