Firms have until 7 Januray to register an interest at procure4london.com using access code: 29HB5FM3PD or contact Mark Holmes on tel: 01895558396.
The London Borough of Hillingdon has started the search for contractors to build and improve up to 15 schools.
The west London council aims to appoint six firms to the framework, which could be worth up to £200m over the next four years.
Firms have until 7 Januray to register an interest at procure4london.com using access code: 29HB5FM3PD or contact Mark Holmes on tel: 01895558396.