Neilsoft provides design, engineering and drafting services for traditional and specialized electrical systems, HVAC, plumbing, drainage systems and firefighting systems.

We have the technical expertise to formulate preliminary design concepts and draft recommendations from preliminary design data or concept drawings of the structure, considering all international and country/region-specific codes & standards.

Our engagements range from supporting our clients on individual projects to establishing multi-disciplinary teams to support them on an on-going basis, helping increase their efficiency and effectiveness through reduced cost & shorter schedules; to supporting our clients in their new technology initiatives / projects like sustainability, alternative energy and green building projects.




  • Design basis requirements
  • Heat load Calculation
  • Sizing & Selection of HVAC Equipment (Boiler, Pump, Chiller, AHU, etc.)
  • Zoning and Pressurization Diagram
  • Air flow diagrams
  • Heating, Cooling & Ventilation Schematics
  • Control schematics
  • Energy efficiency analysis
  • Equipment general arrangement plan (AHU, Chiller, CT, Pumps, etc.)
  • Ducting plan, section and details
  • Acoustic calculations, selection of attenuators and vibration pads
  • Plant room layout including detailed sections
  • Reflected ceiling plans
  • Equipment schedules
  • Brief datasheets / specifications
  • Duct fabrication drawing
  • Bill of Quantity

  • Design basis requirements
  • Electrical load calculations
  • Lighting layout
  • Lighting calculations
  • Cable, MCC sizing calculation
  • Electrical Single Line Diagram
  • Single line diagram-for fire detection and alarm system and gas-based system
  • Lightning protection calculation
  • Lightning protection layout
  • Building management system
  • Small power distribution layout
  • Power distribution layout
  • Security systems layout
  • Fire detector spacing calculations
  • Fire detector and alarm layout

  • Hot & Cold-water capacity calculations
  • Sizing & selection of Calorifiers, Pumps, Water storage tanks
  • Pipe sizing for water services
  • Water services schematics
  • Water services layouts (Plans & Details)
  • Design of gravity based soil & waste system
  • Soil & waste schematics
  • Soil & waste system layouts (Plans & Details)
  • Medical gas & vacuum piping design
  • Fuel gas piping design
  • Gas services schematics
  • Plant room layout (Plans & Details)
  • Equipment datasheets for plumbing equipment
  • Selection of insulation for piping materials

  • Smoke detection, sprinkler and gas suppression system
  • Calculation for water storage capacity and pump sizing calculations
  • Calculations for gas quantity for fire suppression systems
  • Design & preparation of schematic diagrams
  • Design & preparation of Sprinkler/Hydrant/Water Spray/Foam systems layout drawings
  • Fuel gas management (as required)

  • Water demand calculations
  • Loading unit calculations
  • Design & preparation of schematic diagrams
  • Design & preparation of cold & hot water layout drawings
  • Preparation of design requirement document/ specification
  • Design specifications
  • Discharge unit & storm water calculations
  • Utility assessment
  • Utility packages including piping & accessories
  • Piping layout
  • Tender and bill of quantities


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Building & Infrastructure Design

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