Turnover climbed to £46.1 million for the 12 months to 31 December, 2007 compared with £28 million for the same period the previous year.
While the figures do not include performance in 2008, bosses said there was a strong order book in place for this year and 2009 was already 40 per cent full.
Bosses put the sales boost down to partnering arrangements and frameworks that it has developed over the past few years.
Skerritt delivers mechanical, electrical and plumbing services to large-scale commercial and public sector developments.
Managing director Stuart Hill said: “In 2006, we embarked on a five-year plan to double the size of the business.
“We aimed to do that by becoming the preferred contractor to a select group of major developers and construction companies.
“That’s exactly what we have done: One year into the plan, we are way ahead of that target and in a really strong position to weather the slow down in the economy.”
An additional 20 per cent full-time and contract staff were recruited in 2007.