UNITHERM
Aesthetic Appeal Meets Durability – Premium uPVC Solutions for Every Space
Pakistan's Premier uPVC Window & Door Provider
Unitherm Window & Door Systems, established as a sister concern of Heat-Con Systems (1998), is Pakistan's exclusive distributor of Deceuninck, Belgium's leading uPVC brand. Led by industry visionary Sultan Ahmed, our company delivers state-of-the-art window and door solutions tailored for Pakistani homes and businesses.
From our manufacturing facility in Rawat Industrial Area, our foreign-qualified technicians produce premium uPVC windows and doors with unmatched benefits: superior sound insulation (30-40dB reduction), excellent energy efficiency, complete termite resistance, 20-35 year durability, minimal maintenance requirements, and enhanced fire safety.
Our product range includes casement windows, sliding systems, tilt & turn windows, doors, and innovative bi-fold solutions that combine European quality standards with local expertise. Whether for residential homes in Islamabad, commercial buildings in Karachi, or hospitality projects across Pakistan, Unitherm's commitment to innovation, quality, and sustainability makes us the trusted choice for discerning customers seeking premium uPVC window and door systems.

Premium uPVC Window & Door Services in Pakistan | Deceuninck Solutions
Consultancy
We provide expert consultation services to homeowners, architects, and builders in Islamabad and across Pakistan, helping them select the most suitable Deceuninck uPVC window and door systems tailored to their aesthetic, functional, and energy-efficiency needs.
Construction Projects
From residential homes to commercial developments in Pakistan, we offer premium-quality Deceuninck uPVC windows and doors that enhance thermal insulation, sound reduction (30-40dB), and security while complementing modern architectural designs with 20-35 year durability.
Architectural Solutions
We collaborate with Pakistan's leading architects and designers to integrate cutting-edge, sustainable uPVC window and door systems into innovative building projects, ensuring seamless aesthetics and superior performance in all climate conditions.
Custom Fabrication & Installation
Our Rawat factory's state-of-the-art machinery and foreign-qualified technicians enable us to design and manufacture tailored Deceuninck uPVC window and door solutions for Islamabad, Rawalpindi and Karachi, with professional installation services ensuring perfect fit and long-lasting performance.
Bringing Global Window & Door Technology to Your Home in Pakistan. Get Energy-Efficient uPVC Doors & Windows – Perfect for Homes & Offices in Pakistan
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Well-established and experienced in the field of PVC doors and windows.
Realized projects
Regional offices
Years of experience
Team members
A Message from CEO
With over 35 years of expertise in business management and international trade, I've dedicated my career to transforming Pakistan's building materials industry through innovation and forward-thinking approaches. As the exclusive distributor of Deceuninck in Pakistan, Unitherm Window & Door Systems brings world-class European standard windows and doors directly to homeowners, architects, and builders across Islamabad, Rawalpindi, and nationwide.
We've earned our customers' trust for one simple reason – we deliver what we commit. Our state-of-the-art machinery, production capacity of 360,000 sq ft annually, and foreign-qualified technicians ensure every product bearing our name offers exceptional sound insulation, energy efficiency, and durability despite Pakistan's challenging climate conditions. From elegant classical residences to striking modern homes, our premium solutions combine timeless aesthetics with superior performance.
It is my utmost desire to continue delivering state-of-the-art residential and commercial projects that enhance comfort, security, and visual appeal while contributing to a sustainable future. When you choose Unitherm, you're not just investing in premium windows and doors – you're partnering with a team passionate about transforming your vision into reality with products that combine beauty with unmatched performance.
Sultan Ahmed, CEO Unitherm


