Custom ThermoSlot

Custom Insulation is a premier manufacturer of Custom ThermoSlot for ductwork. We cater to any dimensions, starting from 203mm, with all sections supplied in standard 1.2m lengths. Our Midlands-based design team is dedicated to delivering bespoke solutions with industry-leading turnaround times. Explore our offerings and get in touch for any unique requirements.

At Custom Insulation we now have Custom ThermoSlot in two options

• Phenolic Foam – Internal and External Use: High-performance insulation with excellent thermal properties and fire resistance, though typically more expensive than other options.
• Polyisocyanurate (PIR) – External use only (Manufacturer CE marked and tested for Ductwork application): Rigid foam insulation with high R-value and temperature resistance, ideal for high-temperature applications.

We also offer a range of specialised pre covered insulation cladding systems with ThermoSlot in different colours. Which offers

• Weather Protection: ProClad provides a protective outer layer that shields buildings from various weather elements including rain, wind, and snow.
• Thermal Insulation: It helps improve a building’s energy efficiency by reducing heat transfer between the interior and exterior.
• Aesthetics: Offers a clean, professional finish that enhances the visual appeal of commercial and industrial buildings.
• Corrosion Resistance: The material is designed to resist corrosion, making it suitable for harsh environments.
• Moisture Management: ProClad systems often incorporate features that prevent moisture ingress and condensation issues.