The deals brought in exceptional profit gains of £8m, although turnover fell 12% to come in at just over £1bn as the market tightened.
Chairman and chief executive John Stanion said: “The private sector is showing tangible signs of recovery and investment in retail and in the south east commercial building market is looking more encouraging.”
But he warned: “I anticipate though that market conditions will not improve much in 2011 and we face testing times for some time yet as the spending cuts feed through.”
Despite a tough year savings from integrating contracting businesses slashed overheads 13% to £83m.
The firm now boasts a group wide operating margin in the UK of 2.8% helped by a strong performance from civil engineering.
Vinci has also consolidated the building division into three operating regions North, South and Midlands, and Wales.
Vinci UK divisions
Building: profit £13.2m (£4.4m), turnover £546m (£632m)
Civils: profit £21.8m (13.6m), turnover £179m (£237m)
FM: profit £5.1m (£1.8m), turnover £220m (£210m)
Other: loss -£1.0m (-£4.4m), turnover £81m (£83m)
