HEVENTECH Mechanical Services Instructions If you click on the link below, a separate window will pop up allowing you to view a map of our location. To view the full map you may need to maximise the window. Click Here For Map Unit 3, Redbridge Enterprise Centre Thompson Close ILFORD IG1 1TY Telephone: 020 8478 8296 Fax: 020 8553 3435 Email: sales@heatingandairconditioning.co.uk