MEP & HVAC Design &
Load Calculations
Cooling & heating load calculations, AutoCAD and Revit MEP drawings, and full HVAC system design — delivered remotely to clients worldwide by an engineering firm with over 30 years of proven delivery.
A service of Green Power Corporation — established 1988.
What We Deliver — Worldwide
Submit your drawings or brief; our qualified engineers return a complete, stamped-quality design package. All services are available remotely to clients in any country.
Cooling & Heating Load Calculations
Room-by-room and building-level HVAC load analysis using ASHRAE CLTD/RTS or CIBSE methods. PDF report + equipment sizing guidance.
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AutoCAD & Revit MEP Drawings
Full MEP coordination drawings, shop drawings, schematics, and as-built packages in DWG and PDF formats.
Learn more →HVAC System Design
From load to full equipment selection — chillers, AHUs, VRF, ducted splits. Ductwork sizing, equipment schedules, and control sequences.
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Fire Fighting Design
Sprinkler system design (NFPA 13), fire hose reels, hydrant systems, fire pump sizing, and full hydraulic calculations.
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Plumbing Design
Cold water, hot water, sanitary drainage, soil stacks, and roof drainage. Pipe sizing to BS EN 806, CIBSE, or ASHRAE standards.
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Electrical Design
Power distribution, lighting design, single line diagrams, load schedules, panel schedules, and cable sizing calculations.
Learn more →Estimate Your Cooling & Heating Load Instantly
Our free ASHRAE CLTD/CLF-based load calculator gives you a defensible preliminary equipment size in minutes — no sign-up required. Enter your rooms, design conditions, and get sensible + latent cooling and heating totals.
- Room-by-room and building totals
- SI and IP unit toggle
- Adjustable safety factor
- Runs entirely in your browser — no data sent anywhere
For preliminary sizing only. Validate with detailed design software for final selection.
A Portfolio Built on Major Projects
Green Power Corporation has delivered MEP, HVAC, fire fighting, and civil engineering works across Pakistan's most demanding sectors — including international airports, State Bank headquarters, pharmaceutical manufacturing, and hospital infrastructure. This heritage of proven delivery is the foundation of our remote design services.
Islamabad International Airport
Full MEP systems for one of Pakistan's largest civil aviation projects.
State Bank of Pakistan
HVAC and MEP systems for Pakistan's central banking institution.
Shalimar Hospital, Lahore
Precision HVAC and MEP systems for a major healthcare facility.
Medipak Pharma
GMP-compliant HVAC and cleanroom MEP systems for pharmaceutical manufacturing.
Tricon Centre, Lahore
Central chilled water plant and MEP package for a major commercial tower.
McDonald's — Multiple Branches
Standardised MEP design and commissioning across multiple restaurant branches.
On-Site Contracting & Turnkey Projects
Within Pakistan, Green Power Corporation operates as a full-service engineering contractor — managing on-site MEP, HVAC, fire fighting, plumbing, electrical, and civil works from design through to commissioning and handover. The same team that does your remote design calculations has delivered major on-site projects for 30+ years.
This domestic contracting track record is the operational backbone that validates our remote design capability — we don't just draw systems, we build and commission them.
On-Site Services in Pakistan
How Our Remote Service Works
A simple, transparent four-step process — from brief to deliverable.
Send Your Drawings & Brief
Email us your architectural drawings, project location, occupancy details, and scope. PDF, DWG, or Revit files accepted.
Receive a Fixed Quote
We review your brief and send a clear scope, fixed fee, and timeline — usually within 24 hours. No hidden extras.
We Complete the Design
Our engineers work to ASHRAE, CIBSE, or locally applicable standards using professional software (HAP, AutoCAD MEP, Revit MEP).
Delivery + Revisions
You receive DWG + PDF deliverables by email. One round of revisions is included. Turnaround typically 3–7 working days.
Ready to Get Your Calculations or Drawings?
Send us your brief today. We'll respond with a scope, fixed quote, and timeline within 24 hours.