Experience innovation in insulation with our Clima63 Door Range. A new generation of doors with exceptional thermal performance, seamlessly blending energy efficiency, security and striking design for modern entrances.
The Clima63 range from IG Doors is a high-performance GRP door solution designed for modern homes across South Wales and the wider UK. Combining advanced thermal efficiency with outstanding durability, these GRP doors are ideal for homeowners looking to improve comfort, security, and style.
Leading the Way in Thermal Efficiency with Clima63
Experience unparalleled thermal efficiency with our Clima63 GRP door range, engineered for sustainable housing projects. Secured by Design approved, it exceeds Future Home Standard 2025 criteria.
Elevate your housing project with the Clima63 thermal door range, delivering extraordinary thermal insulation with a U-Value less than 1 W/m2K. Achieve A-Rated energy efficiency, meeting the proposed Future Homes Standard 2025.
Manufactured at our facility in South Wales, our sustainably crafted 63mm door slab, with L/M/Q approval, offers thermal excellence in diverse styles and colours, from traditional to contemporary. Secured by Design accreditation ensures enhanced security.
Compliant with the latest building regulations, our innovative UPVC frames, featuring a unique triple seal system, surpass traditional steel reinforcement, offering 30% greater thermal efficiency and 100% recyclability.
The triple-glazed units, set in a distinctive cassette system, enhance thermal performance, water resistance and sound insulation, whilst complementing our Panelled, Cottage and Contemporary collections. Delivered across the UK, the Clima63 GRP door range combines South Wales craftsmanship with nationwide accessibility.
Panelled

Cottage

Contemporary

Frequently Asked Questions
What is the Clima63 Thermal Door Range?
The Clima63 range is a new generation of highly insulated composite doors engineered for exceptional thermal performance, security, and modern design. It features a 63mm insulated door slab designed for sustainable, energy‑efficient homes.
What is the Future Homes Standard?
The standard focuses heavily on improving the energy efficiency of the building fabric, including walls, roofs, windows and external doors.
How does the Clima63 door meet the Future Homes Standard?
The door meets the thermal expectations of the Future Homes Standard by combining:
- A thick insulated door slab that significantly reduces heat transfer
- High-performance thermal core materials to improve insulation
- Thermally broken frame construction to prevent heat loss through the frame
- Advanced weather seals and airtight detailing to minimise drafts
- Low overall U-values designed to meet or exceed the ~1.0 W/m²K benchmark
Together, these features allow the Clima63 door to deliver the thermal efficiency required for next-generation housing regulations.
How energy efficient are Clima63 GRP doors?
Clima63 doors achieve a U‑Value of less than 1 W/m²K and an A‑Rated energy efficiency, exceeding the proposed Future Homes Standard 2025. This makes them ideal for reducing heat loss and improving overall home efficiency.
Are Clima63 doors suitable for new builds and refurbishments?
What styles and colours are available?
What is a GRP door?
A GRP door (Glass Reinforced Plastic) is a durable and energy-efficient external door made from a reinforced composite material. GRP doors are known for their strength, weather resistance, and low maintenance requirements, making them a popular choice for homes across South Wales.
What materials are used in the Clima63 door construction?
Are Clima63 doors manufactured in the UK?
Are GRP doors suitable for homes in South Wales?
Yes, GRP doors are ideal for properties in South Wales. Their weather-resistant construction makes them perfect for handling rain, wind, and temperature fluctuations, while their insulation improves energy efficiency.
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