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HVAC & Air Conditioning Services
- HVAC & Air Conditioning Services
Expert Heating, Ventilation & Air Conditioning Solutions for Comfort & Efficiency in Pakistan
From complete HVAC system design and installation to AC repairs, maintenance, inverter AC servicing, gas filling, VRF systems, and Gree AC support — Custom Engineering delivers energy-efficient, reliable, and high-performance climate control solutions for commercial, industrial, residential, hospitals, malls, and offices across Pakistan.
HVAC & AC Services at a Glance – Key Strengths
Complete Climate Control Solutions
Design → Installation → Testing → Maintenance
Energy-Efficient Technologies
VRF systems, Inverter ACs, Smart Controls
24/7 Emergency AC Support
Fast response during peak summer
All Major Brands Supported
Gree, Daikin, Mitsubishi, General & more
6+ Years of Proven Expertise
50+ successful projects delivered nationwide
Why Choose Custom Engineering for HVAC & AC Services?
In Pakistan’s extreme climate, a reliable HVAC and air conditioning system is essential for comfort, productivity, and health.
We stand out with:
- Certified HVAC engineers & professionally trained technicians
- High-efficiency units with eco‑friendly refrigerants
- Accurate cooling load calculations & optimized duct design
- Low-noise, low-vibration installations
- Comprehensive warranties & annual maintenance contracts
Whether it’s a new construction project, system upgrade, or urgent repair — we ensure year-round comfort and long-term reliability.
Our Core HVAC & Air Conditioning Services

Inverter AC Repair & Servicing
Specialized services for inverter ACs including gas top‑ups, sensor replacement, efficiency optimization, and performance restoration.

Gree AC Services
Professional installation, repair, maintenance, and warranty-level support for Gree air conditioning systems.

VRF / VRV Systems
Advanced variable refrigerant flow systems for large buildings and multi‑zone environments — offering superior efficiency, quiet operation, and smart temperature control.

AC Gas Filling & Refrigerant Services
Safe and precise refrigerant charging (R410A, R32, R22), leak detection, vacuuming, and pressure testing for maximum cooling efficiency.

HVAC System Design & Installation
Complete central HVAC solutions including ducted systems, air handling units (AHUs), chillers, ventilation, and rooftop units for commercial and large-scale buildings.
Efficient airflow design
Code-compliant installations
Reliable long-term performance

AC Installation
Professional installation of split ACs, cassette units, floor‑standing, window, and ducted AC systems — ensuring correct placement, piping, insulation, and testing.
Precise installation
Optimal cooling output
Clean & safe workmanship

AC Installation
Professional installation of split ACs, cassette units, floor‑standing, window, and ducted AC systems — ensuring correct placement, piping, insulation, and testing.
Precise installation
Optimal cooling output
Clean & safe workmanship
Our Work Process

Site Survey & Client Consultation

Customized HVAC System Design & Proposal

Material Procurement & Quality Inspection

Professional Installation & System Testing

Handover, Training & Maintenance Planning
Benefits & Our Proven Process
What You Gain
- Up to 40% lower electricity bills with inverter & VRF technologies
- Improved indoor air quality & occupant health
- Reduced breakdowns & maintenance costs
- Quiet, eco‑friendly, and consistent cooling performance
What Our Clients Say
We are trusted by leading developers, contractors, industrial units, and corporate organizations across Pakistan.
Beat the Heat – Get Your HVAC / AC Project Started Today!
Whether you need a new HVAC installation, urgent AC repair, annual maintenance, or VRF system upgrade — our experts are ready to help.
Quick Contact
- +92‑346‑6623279 (Call/WhatsApp 24/7)
- info@customengineering.com.pk
- office 1, Lower Ground, Mithaq Height, Street 1, Gulshan e taleem housing society, Islamabad