'renovation works' is correct and can be used in written English.
For example, "I have hired a builder to carry out the renovation works on my house."
During renovation works, students protected the cobbles so they could continue to jump over them.
We shut the doors of our house in January 2013, and renovation works are well underway.
In nearby Highgate, it's Kate Moss who is upsetting the locals with £2.5m-worth of renovation works.
It is proof that renovation works on site and that you don't need a new stadium to win the World Series.
Yet the axing of BSF was accompanied by an 80% reduction to the money that previously went straight to schools for small-scale repair and renovation works (schools devolved capital funding).
This year Saudi Arabia, which gives a quota of haj visas to each country on the basis of the size of its Muslim population, has slashed the number of visas for foreign pilgrims by 20%, as it carries out renovation works to expand the capacity of the Grand Mosque.
The renovation work took almost two months.
Renovation work is under way inside.
As a result, renovation work for the restaurant began.
Renovation work began in the 1990s on the bathhouse, which is part of the federal Gateway National Recreation Area.
The Empire State Building, for example, is 82 and doing just fine after major renovation work.
