Rainbow Greeners offers a range of services that covers the entire spectrum of the civil construction industry, from building construction to industrial complexes and roads. We undertake civil contract work under the categories mentioned below. Garden and Landscape Development. Turnkey Civil & Structural Projects. Infrastructure works & Site Grading works. Structural Fabrication & Erection works. Mechanized Earth works. Pre-engineered Steel Buildings Building, Bridges and Roads. Pipeline Installation works. Interior Decoration works. Industrial Structures.