Latest accounts for the Dundee-headquartered firm saw turnover rise from £12.9 million in 2019 to £13.2m for the year ending September 30 2020. Pre-tax profits also rose from £147,924 in 2019 to £737,044 in 2020.

Kilmac has expanded operations towards Aberdeen and Edinburgh in recent years, but remain Tayside-based with offices in Dundee and Perth.

In his strategic report, Kilmac director Athole McDonald said: “The directors consider the company has performed well and are pleased with the results achieved in a difficult economy.

“The directors are aware the future performance of the company will be directly affected by circumstances prevailing in the UK economy.”

Over the reporting period, the firm had a head count of 84, including four directors, 45 staff in direct labour roles and 35 office staff.

Kilmac has been involved with the construction of the new Madras College in St Andrews, a project worth about £7m to the firm.

Despite the pandemic increasing the cost of the project and delay in construction, the school is due to welcome students next week.

The company has also undertaken contracts with Aldi in Forfar and Airdrie and is also carrying out groundworks for a blood testing facility extension at Livingston.