WARREN has the following certificates
1. General Building Works Category NCA 1
2. Civil Engineering Works
• Road works Category NCA 1
• Structural works Category NCA 1
• Water works Category NCA 1
– Bore hole drilling
– Dam construction
3. Mechanical Engineering Services Category NCA 1
• Plumbing, Drainage & Sanitary fittings
• Fire protection Services
4. Electrical Engineering Services Category NCA 1
• Electrical Surveillance Systems, Access Control System
Standards and Certificates
Standard WARREN products are manufactured as per international
recognized standards as follows;
1. Welded Tanks for Oil Storage to API STANDARD 650
2. Workshop fabricated steel tanks. Horizontal cylindrical single skin and double skin tanks for the underground storage of flammable and nonflammable water polluting liquids to BS EN 12285-1:2003
3. Workshop fabricated steel tanks. Horizontal cylindrical single skin and
double skin tanks for the aboveground storage of flammable and nonflammable water polluting liquids to BS EN 12285-2:2005
4. Pressed steel sectional rectangular tanks to BS 1564:1975
Our products are inspected by third party Agencies and have Permits to use
the KEBS STANDARDIZATION MARK (SMark).
