CEARA School in Lurgan will benefit from a £4.4 million investment in the minor works scheme.
Two classroom extensions and improvements to car parking will cost £399,000.
Education Minister, John O’Dowd said: “Since January this year, £23.8 million has been allocated to minor works contracts with £4.4million being invested in 42 contracts during the month of June.
“This ongoing investment in the schools estate is having a positive impact on pupils, teachers and school staff and provides a much needed boost to the construction industry at what is a challenging time for local firms.”
During the past year 40 new school building projects were given approval to proceed representing a potential investment of £353 million.
The Minister said: “I am confident that the ongoing substantial investment in the minor works programmes will help in the drive to improve educational standards. The completion of these works will ultimately provide better facilities for our children and young people to learn in and an improved working environment for teachers and staff.”