Built on Experience
Focused on Quality
Optitherm was created to better reflect the quality of our offering and the type of projects we work on today.
OUR STORY
Optitherm was created as part of the evolution of NKG Composite, with a clear intention, to create a brand that better reflects the quality of our offering and the type of projects we want to be known for.
We supply premium window and door systems for projects where design, performance and precision matter. Working with architects, builders, self-build clients and developers, we support high-end residential projects, renovations, extensions and selected commercial schemes.
A More Considered Approach
Our Approach
Our approach is built around providing the right products for each project, ensuring they align with the architectural intent while delivering strong thermal performance, durability and long-term reliability.
We understand that our clients are often making important design and specification decisions, which is why we provide a straightforward, professional and supportive service from initial enquiry through to completion.
What We Focus On
PRECISION
Every survey, specification and installation carried out with care and accuracy.
DESIGN-LED
Systems chosen to complement architecture and enhance the overall result.
RELIABILITY
Clear communication, dependable timelines and a consistent service.
PERFORMANCE
High-efficiency systems designed for long-term comfort and durability.
We focus on projects where quality, detail and overall finish are key, working with clients who are looking for a more considered and professional approach.
GET IN TOUCH
Start Your Project
Speak to us about your plans and we’ll guide you through the next steps.