ELECTRICAL SERVICES

Design, Supply, Installation & Maintenance of Complete Electrical Systems

Mosam Engineering (Pvt.) Ltd. | Pakistan

Electrical Services in Pakistan Complete Electrical Engineering Solutions

Electricity is the lifeblood of every modern building and production facility. When electrical systems are designed correctly, installed professionally, and maintained diligently, they are invisible equipment operates, lights function, processes run, and occupants are safe. When they are not, the consequences range from operational disruption and equipment damage to electrical fires and loss of life. In Pakistan’s demanding electrical environment—characterized by voltage fluctuations, frequent load shedding, aging infrastructure, and rapid construction growth the quality and technical rigor of your electrical contractor is not a minor consideration. It is a critical one.

Mosam Engineering (Pvt.) Ltd. delivers comprehensive electrical engineering services for residential, commercial, and industrial clients across Pakistan. Our team of qualified electrical engineers, licensed electricians, and control system specialists brings the same standard of technical discipline to electrical work that defines our reputation across HVAC and MEP engineering. Every electrical installation we complete is designed to WAPDA and NEPRA standards, BS 7671 (IET Wiring Regulations), and international codes applicable to the project type and every system is tested, inspected, and certified before handover.

We do not cut corners on cable sizing, protection coordination, earthing design, or testing. Electrical shortcuts are not visible to the untrained eye on the day of installation but their consequences become apparent months or years later, often at great cost. Mosam Engineering’s electrical installations are built to last, built to be safe, and built to perform under Pakistan’s challenging supply conditions.

About Us

Excellence in Every Degree delivering precise, reliable, and high-performance engineering solutions.

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Mosam Engineering is Pakistan’s premier HVAC and engineering solutions provider, delivering excellence for over 20 years. Since our establishment in 2007, we’ve built a trusted reputation for quality, innovation, and customer satisfaction across residential, commercial, and industrial sectors.

Our Electrical Services

Mosam Engineering provides a complete range of electrical engineering services across Pakistan covering every stage from initial design and installation through to ongoing maintenance, emergency response, and specialist consultancy.

Electrical Installation

Complete new installations from incoming supply to final circuits for all building types

Industrial Electrical Work

Heavy-duty electrical engineering for manufacturing, process, and hazardous area environments

Power Distribution

HV and LV distribution systems, switchgear, transformers, busbars, and UPS at all voltage levels

Control Panels

IEC 61439-compliant MCCs, ATS panels, PLC panels, and custom control panel design and build

Cable Laying

HV and LV cable installation, cable management systems, and underground duct installations

Lighting Systems

LED lighting design, installation, emergency lighting, and intelligent lighting controls

Electrical Maintenance

Periodic inspection and testing, thermographic surveys, AMC, and 24/7 emergency response

Earthing & Lightning Protection

Earthing systems, equipotential bonding, SPDs, and BS EN 62305 lightning protection

Power Quality Assessment

Power quality measurement, harmonic analysis, PFC, and correction equipment

BMS & Building Automation Integration

Electrical system integration with BACnet, Modbus, KNX, and DALI platforms

Electrical Installation

From first fix to final test complete electrical installations delivered to code, on time, and on budget.

A professional electrical installation is the foundation upon which everything else in a building depends. From the incoming supply termination and main distribution board through to the final socket outlet and light fitting, every component, connection, and cable route must be engineered, installed, and tested to the applicable standard. Mosam Engineering manages the full scope of electrical installation for new construction, fit-out, and refurbishment projects across all building types and sizes.

Electrical Installation Services We Provide

Incoming supply and metering installations single-phase and three-phase
Main distribution board (MDB) and sub-distribution board (SDB) installation
Final circuit wiring power, lighting, small power, and specialist circuits
Earthing and bonding systems TN-S, TN-C-S, and TT configurations
Surge protection device (SPD) installation for sensitive equipment protection
Emergency lighting and exit sign installations
Fire alarm system wiring and device installation
Data, structured cabling, and low-voltage system rough-in
Generator interconnection and automatic changeover switch (ATS) installation

Our Electrical Installation Process

Electrical load schedule preparation and supply authority application
Single-line diagram and electrical layout drawings in AutoCAD
Cable sizing and protection coordination calculations
First fix installation coordinated with civil and structural programme
Second fix, testing, and inspection on completion
Insulation resistance testing, earth continuity testing, and RCD testing
Electrical installation certificate and test schedule issued on handover

Every electrical installation completed by Mosam Engineering is backed by a full set of electrical test certificates and inspection reports. We never hand over an installation without verified test results and we never pass an installation that has failed to meet the applicable standard.

In industrial environments, electrical failures are not merely inconvenient they halt production, damage capital equipment, and create serious safety hazards. Mosam Engineering designs industrial electrical systems with appropriate protection coordination, redundancy where required, and the maintenance access provisions that allow your engineering team to keep systems operational with minimal downtime.

Industrial Electrical Work

Heavy-duty electrical engineering for Pakistan’s most demanding production environments.

Industrial electrical work is a specialist discipline that demands experience, technical competence, and a rigorous approach to safety that goes well beyond standard commercial installations. High fault levels, large motor loads, variable frequency drives, power factor correction, harmonic disturbance, hazardous area classifications, and the continuous operational demands of production environments all require an electrical engineering team that understands industrial systems from the inside out. Mosam Engineering has the expertise to deliver.

Industrial Sectors We Serve

Textile and garment manufacturing
Food and beverage processing plants
Pharmaceutical and GMP production facilities
Cement, steel, and heavy manufacturing
Oil and gas refineries and petrochemical plants
Cold storage and logistics facilities
Water treatment and pumping stations
Power generation and co-generation plants

Industrial Electrical Capabilities

HV and LV switchgear installation and commissioning
Large motor and drive installations DOL, star-delta, and VFD starting
Power factor correction (PFC) systems fixed and automatic capacitor banks
Harmonic analysis and filtering for VFD-heavy installations
Transformer installation and commissioning dry type and oil-filled
ATEX-rated electrical equipment for hazardous area Zones 1 and 2
Overhead crane and gantry electrical installations
Process instrumentation wiring and field device installation

Power Distribution

Getting power safely and efficiently from source to load engineered for reliability at every voltage level.

Power distribution is the network through which electrical energy flows from the incoming utility supply or on-site generation through the building’s switchgear, transformers, busbars, distribution boards, and final circuits to every connected load. A well-engineered power distribution system delivers the right voltage at the right current capacity to every load, with appropriate protection at every level, minimal energy losses, and the flexibility to accommodate future load growth. A poorly designed distribution system causes nuisance tripping, voltage drop problems, and overloaded cables and represents a latent fire risk.

Power Distribution Systems We Design and Install

High voltage (HV) distribution 11 kV and kV incoming supplies and switchgear
HV/LV transformer substations package substations and bespoke installations
Low voltage (LV) main distribution boards fixed and withdrawable circuit breaker configurations
Sub-distribution boards and final distribution boards across all floors and zones
Busbar trunking systems (busduct) for high-capacity vertical and horizontal distribution
Rising mains and distribution columns for multi-storey buildings
UPS systems online double conversion for critical and sensitive loads
Automatic Transfer Switches (ATS) and manual changeover switches for generator backup
Power monitoring and metering systems submetering for energy management

Protection Coordination and System Studies

Mosam Engineering performs protection coordination studies for complex power distribution systems ensuring that fault current is interrupted at the correct level of the distribution hierarchy, minimizing the extent of any supply interruption while protecting cables and equipment from damage. We also carry out load flow analysis, short circuit calculations, and arc flash assessments for industrial and large commercial projects where these studies are required for safe design and OSHA compliance.

Control Panels

Precision-built, fully tested, and professionally documented the control center of your electrical system.

Control panels are the operational nerve centers of electrical and mechanical systems—from a simple motor starter panel for a pump to a fully integrated PLC-based automation panel controlling an entire production line. The quality of a control panel is determined not by its external appearance but by the engineering decisions made inside: cable sizing and segregation, component selection and rating, busbar sizing, protection coordination, labeling, testing, and documentation. A poorly built panel is a maintenance nightmare and a safety liability. A well-built panel is a long-term asset.

Mosam Engineering designs and manufactures control panels in-house to IEC 61439 standards, using certified components from internationally recognized manufacturers. Every panel leaves our facility with a full set of as-built drawings, component schedules, test records, and operation and maintenance documentation.

Control Panel Types We Design and Build

Motor Control Centres (MCCs) DOL, star-delta, and VFD starters for single- and multi-motor applications
Power Factor Correction (PFC) panels fixed and automatic reactive power compensation
Main LV switchboards ACB and MCCB-based incoming and outgoing feeder panels
Automatic Transfer Switch (ATS) panels generator and UPS changeover automation
Pump control panels level-controlled, pressure-controlled, and duty/standby configurations
HVAC control panels AHU, chiller, and BMS interface panels
PLC and SCADA panels for process automation and remote monitoring
Lighting control panels scene control, DALI, and BMS-integrated configurations

Panel Build Quality Standards

IEC 61439-compliant design with verified form of separation
Copper busbars sized for continuous and fault current rating
Full cable segregation power, control, and instrumentation circuits
Consistent, durable labelling of all components, terminals, and cables
Factory Acceptance Testing (FAT) before despatch to site
Full as-built drawings, wiring schedules, and O&M manuals supplied with every panel

Cable Laying

The backbone of every electrical system routed correctly, protected properly, and terminated precisely.

Cable laying is one of those elements of electrical installation that is often underestimated until it goes wrong. Undersized cables overheat and fail. Cables without adequate mechanical protection are vulnerable to damage. Cables routed without regard to electromagnetic compatibility cause interference in sensitive systems. Cables terminated without proper ferrules and labeling create maintenance problems that persist for the life of the installation. Mosam Engineering treats cable installation as a precision activity—because it is.

Cable Types and Systems We Install

XLPE and PVC insulated armoured cables (SWA) for underground and exposed power distribution
MICC (mineral insulated copper clad) cables for fire-rated circuit installations
Single-core and multi-core LV power cables up to 630mm²
HV cables 11 kV and kV XLPE insulated, direct buried and duct-installed
Flexible and fixed wiring PVC, LSZH (low smoke zero halogen), and fire-resistant types
Data and instrumentation cables shielded, twisted pair, and fibre optic
Cable management systems cable trays, ladders, conduit (PVC and GI), trunking, and ducts
Underground duct installation HDPE and PVC duct systems with draw pits and manholes

Our Cable Installation Standards

Cable sizing calculations per IEC 60364 accounting for grouping, ambient temperature, and installation method derating
Voltage drop verification for all final circuits and distribution feeders
Segregation of power, control, instrumentation, and data cables throughout
Fire barrier installation at all penetrations through fire-rated walls and floors
Termination using insulated bootlace ferrules and calibrated torque tools
Individual cable identification at both ends and at every junction or access point
Insulation resistance testing of all installed cables before energisation

Replacing fluorescent and metal halide lighting with properly designed LED systems typically reduces lighting energy consumption by 50 to 70% and eliminates the maintenance burden of frequent lamp replacements. Mosam Engineering provides full lighting upgrade surveys, ROI calculations, and turnkey replacements—with minimal disruption to ongoing operations.

Lighting Systems

Illuminating every space correctly energy efficient, visually comfortable, and code compliant.

Lighting is the most visible element of any electrical installation and one of the most technically nuanced. A well-designed lighting system delivers the correct illuminance levels for the tasks performed in each space, avoids glare and visual discomfort, creates an environment that supports productivity and well-being, and does all of this at the lowest practical energy consumption. In Pakistan’s high-tariff electricity environment, lighting energy efficiency is not just a sustainability consideration it is a direct operating cost issue. Mosam Engineering designs and installs lighting systems that meet international illuminance standards while minimizing energy consumption through LED technology, intelligent controls, and daylight integration.

Lighting Systems We Design and Install

LED lighting throughout commercial, industrial, and architectural applications
Office and commercial lighting recessed, surface, and suspended luminaires
Industrial high-bay LED lighting for warehouses, factories, and logistics facilities
Outdoor and car park lighting LED floodlights, columns, and canopy lights
Emergency lighting maintained and non-maintained systems to BS 5266
Exit and escape route signage LED-maintained emergency signs
Architectural and feature lighting facades, atriums, and hospitality environments
Sports and arena lighting high-mast and precision aiming for uniform coverage

Lighting Design and Controls

Illuminance calculations using DIALux or Relux lighting design software
Glare assessment UGR (Unified Glare Rating) verification for office and educational environments
DALI and KNX lighting control systems scene setting, dimming, and zoning
Occupancy and daylight sensor integration for automatic energy management
Building Management System (BMS) integration for centralised control and scheduling
Emergency lighting system design, testing schedule, and BS 5266 compliance certificate
Energy consumption calculation and comparison with baseline for energy audit purposes

Electrical Maintenance

Preventing failures before they happen protecting people, equipment, and operational continuity.

Electrical systems deteriorate over time. Connections loosen under thermal cycling. Insulation degrades with age and heat. Protection devices develop faults silently. Contactors wear. Distribution boards accumulate dust and moisture ingress. In Pakistan’s climate—with its extremes of heat, humidity, and dust—electrical systems in poorly maintained buildings age faster than their design life would suggest. Mosam Engineering provides structured, professionally documented electrical maintenance programs that keep your systems safe, compliant, and reliable throughout their operational life.

Our Electrical Maintenance Services

Periodic inspection and testing (PIT)—full electrical installation condition report (EICR) to BS 7671
Thermographic (infrared) scanning of distribution boards, switchgear, and bus connections
HV switchgear and transformer maintenance—including oil sampling and dissolved gas analysis
Distribution board inspection—connection torque verification, cable condition, and protection device testing
RCD and RCCB testing—trip time verification to IEC 61008 and IEC 61009
UPS and battery system inspection—capacity testing and runtime verification
Generator and ATS testing—weekly no-load and monthly load testing with test records
Emergency lighting monthly flick test and annual full discharge testing
Motor and starter maintenance—insulation resistance, bearing condition, and contactor inspection

Maintenance Plans Available

Annual Maintenance Contract (AMC): Scheduled visits, full system inspection, thermographic survey, and priority emergency response
Periodic Inspection and Testing: Full EICR to BS 7671 with detailed condition report and remedial recommendations
Thermographic Survey: Infrared scanning of all electrical distribution equipment to identify hot spots before failure
Emergency Call-Out: Rapid response for electrical faults in commercial and industrial facilities

Our electrical maintenance engineers are experienced across all types of commercial and industrial electrical infrastructure. Every maintenance visit is documented with a signed inspection report, photographic evidence, and a prioritized list of any remedial actions required—providing the building owner with a clear record of system condition and a defensible demonstration of due diligence.

Additional Electrical Services

Earthing and Lightning Protection Systems

Pakistan’s summer monsoon season brings significant lightning activity across Punjab, Sindh, and KPK, and even outside the monsoon, transient overvoltages from switching events and grid disturbances pose a continuous risk to sensitive electrical and electronic equipment. Mosam Engineering designs and installs earthing systems and lightning protection systems to BS EN 62305 and IEC 62561—including earth electrode installation, equipotential bonding, surge protection devices (SPDs) at all levels of the distribution system, and lightning protection air termination networks for high-risk structures

Power Quality Assessment and Correction

Pakistan’s grid supply frequently carries power quality issues, including voltage sags, harmonic distortion, voltage unbalance, and transient overvoltages—all of which cause operational problems for sensitive equipment, increased energy losses, and premature equipment failure. Mosam Engineering carries out power quality measurements using calibrated power analyzers, identifies the root causes of power quality problems, and implements correction measures including harmonic filters, power factor correction equipment, voltage stabilizers, and isolation transformers.

BMS and Building Automation Integration

Modern buildings require electrical systems that communicate—with each other, with building management systems, and with energy monitoring platforms. Mosam Engineering integrates electrical distribution, lighting, and mechanical systems into unified BMS and building automation platforms, enabling centralized control, real-time energy monitoring, automated demand management, and fault alarming. Our integration capability spans BACnet, Modbus, KNX, and DALI protocols across Schneider Electric, ABB, Siemens, and Honeywell BMS platforms.

Certified

Certifications & Registrations

Recognized and certified by leading industry standards

How Our Electrical Process Works

Every electrical project at Mosam Engineering follows a clear and structured process—from first contact to certified handover and ongoing support.

Site Assessment—Our qualified electrical engineers visit your site, evaluate your existing infrastructure, and gather all technical requirements, including load data, supply conditions, and applicable standards.
Custom Design & Proposal—We prepare a complete electrical design, including single-line diagrams, load schedules, cable sizing calculations, layout drawings, and a detailed, transparent quotation with no hidden costs.
Installation & Execution—Our licensed electricians and engineers carry out all work to BS 7671, IEC 60364, and WAPDA/NEPRA requirements—with first fix and second fix coordinated with the wider project program.
Testing & Inspection—Every installation is subjected to the full suite of electrical tests—insulation resistance, earth continuity, RCD trip times, polarity, and loop impedance—before any system is energized.
Certification & Handover—We issue a complete set of electrical test certificates, inspection reports, as-built drawings, and O&M documentation—with full operator guidance and formal handover sign-off.
Ongoing Maintenance & Support—Structured maintenance contracts, periodic inspection programs, thermographic surveys, and 24/7 emergency call-out keep your electrical systems safe and compliant throughout their operational life.

Why Clients Across Pakistan Choose Mosam Engineering for Electrical Services

Qualified Electrical Engineers: Every project is designed and supervised by qualified electrical engineers—not subcontracted to unqualified labor.
Code-Compliant Installations: All work is designed and installed to BS 7671, IEC 60364, and WAPDA/NEPRA requirements
Test Certificates on Every Job: No installation is handed over without verified electrical test results and a signed inspection certificate
Thermographic Capability: Infrared scanning for proactive identification of electrical hot spots before they become failures
HV and LV Capability: From kV incoming substations to final circuit socket outlets—all voltage levels under one roof
Industrial Safety Expertise: ATEX-rated installations, arc flash assessments, and hazardous area compliance for industrial clients
Full Project Delivery: Design, supply, installation, testing, commissioning, and ongoing maintenance—all in-house
Nationwide Coverage: Active across Karachi, Lahore, Islamabad, Rawalpindi, Peshawar, Faisalabad, Multan, and beyond

Areas We Serve Across Pakistan

Mosam Engineering provides electrical engineering services across all major cities and industrial zones throughout Pakistan.

Karachi—Commercial, industrial, and residential electrical installations, including coastal corrosion-resistant specifications and high-rise power distribution
Lahore—Corporate offices, manufacturing facilities, hospitals, data centres, and large commercial developments
Islamabad & Rawalpindi—Government buildings, embassies, data centres, educational institutions, and commercial projects
Peshawar—Industrial and commercial electrical installations and maintenance
Faisalabad—Textile and manufacturing sector electrical systems, motor control, and industrial power distribution
Multan—Commercial, residential, and light industrial electrical services
Quetta—Industrial and commercial electrical installations and maintenance
Nationwide—Industrial zones, infrastructure projects, power generation facilities, and remote site electrical installations across Pakistan

Client Testimonials Our Customers

Mosam Engineering is a trusted electrical engineering contractor in Pakistan delivering outstanding results for clients across every sector and every major city.

“Mosam Engineering designed and installed the complete LV power distribution system for our new commercial tower in Karachi—from the HV substation through to every floor distribution board. The project was delivered on schedule, all test certificates were issued on handover, and the system has been running without issue since day one. Highly professional team.”

“We engaged Mosam Engineering to replace the entire MCC and power factor correction system at our textile plant in Faisalabad. Their electrical engineers understood our production requirements, planned the changeover to minimize downtime, and delivered a fully tested and documented installation. Our energy bills dropped noticeably within the first month.”

“The Mosam thermographic survey of our Lahore hospital’s electrical distribution identified three high-risk hot spots in our main switchroom that we had no knowledge of. Their team remediated the faults immediately and issued a full condition report. That survey almost certainly prevented a serious electrical failure in a critical healthcare environment.”

“We have an Annual Maintenance Contract with Mosam Engineering for all electrical systems across our Islamabad office campus. Their engineers are punctual, thorough, and always deliver detailed inspection reports with clear remedial recommendations. They are exactly the kind of professional contractor you want looking after your electrical infrastructure.”

Speak to Our Electrical Engineers Today

Whether you are planning the electrical infrastructure for a new construction project, upgrading an aging distribution system, investigating a persistent electrical fault, or ensuring your installation is compliant and safe, Mosam Engineering has the qualified team and the technical capability to deliver.

Contact our team to arrange a free site assessment and technical consultation. We will evaluate your electrical requirements, review your existing installation where applicable, and provide a detailed, no-obligation proposal—with honest advice, accurate calculations, and realistic timelines.

Frequently Asked Questions

What electrical services does Mosam Engineering provide?

Mosam Engineering provides a complete range of electrical engineering services in Pakistan—including electrical installation, industrial electrical work, power distribution, control panel design and build, cable laying, lighting systems, and electrical maintenance. We also provide earthing and lightning protection, power quality assessment, and BMS integration services. We serve residential, commercial, and industrial clients across all major cities in Pakistan.

What electrical standards do your installations comply with?

All our electrical installations are designed and executed to BS 7671 (IET Wiring Regulations), IEC 60364, WAPDA, and NEPRA standards, and the applicable international codes for each project type. For industrial and specialist environments—including ATEX hazardous area classifications, pharmaceutical GMP facilities, and data centers—we also comply with the relevant sector-specific standards and codes.

Do you provide electrical test certificates on completion?

Yes, without exception. No electrical installation is handed over by Mosam Engineering without a complete set of verified electrical test results and a signed electrical installation certificate. Our test documentation includes insulation resistance results, earth loop impedance readings, RCD trip time records, and a full inspection schedule—giving you a defensible record of system compliance on the day of handover.

Can you design and build custom control panels?

Yes. Mosam Engineering designs and manufactures control panels in-house to IEC 61439 standards, including Motor Control Centers (MCCs), ATS panels, PFC panels, PLC and SCADA panels, pump control panels, and HVAC control panels. Every panel is factory acceptance tested before dispatch and is supplied with full as-built drawings, wiring schedules, and O&M documentation.

Do you carry out electrical maintenance and periodic inspection?

Yes. We offer structured Annual Maintenance Contracts (AMC), periodic inspection and testing (EICR to BS 7671), thermographic infrared surveys of distribution equipment, RCD testing, UPS and battery testing, generator and ATS testing, and 24/7 emergency call-out. Every maintenance visit is documented with a signed report and photographic evidence.

Do you work on high voltage (HV) electrical systems?

Yes. Mosam Engineering has full HV capability—from 11 kV and 33 kV incoming supplies and switchgear through to HV/LV transformer substations and HV cable installation. Our engineers are trained and experienced in HV system design, commissioning, and maintenance—including oil sampling, dissolved gas analysis, and HV switchgear testing.

How do I get a quote for electrical services in Pakistan?

Simply contact our team through our website or call our office directly. Our engineers will arrange a site visit, review your project drawings or existing installation, and provide a detailed and transparent quotation with a clearly defined scope of work—including all design, supply, installation, testing, and certification requirements—at no obligation.

Contact Us

Get Started Today

Ready to experience Pakistan’s best HVAC and engineering services? Contact us for a free consultation and quote.

24/7 Emergency Service

Available anytime, anywhere in Pakistan

Average response time: 2 hours

Service Areas

Head Office Information

Mosam Engineering, D-13, Iqbal Boulevard,
DHA Phase-2, Islamaba

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