We Are Now Officially Talking Last Orders For 2024. New Orders Need to Be Placed In The Next Week Unless Special Arrangement Is Made With Us.

Order Your Polystyrene Insulation For Cavity Walls Today

Polystyrene insulation boards for cavity walls provide superior thermal efficiency and easy installation that enhances comfort in luxury homes.

Our high-quality polystyrene cavity wall insulation boards are cut and distributed in and from Johannesburg, Cape Town, Durban and Port Elizabeth.

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About Our Polystyrene Wall Insulation Boards

Polystyrene cavity wall insulation is an excellent choice for enhancing thermal insulation in green building projects.

Designed to meet South Africa's building regulations, this eco-friendly solution helps reduce energy consumption while maintaining a comfortable indoor environment.

Its lightweight and durable properties make it easy to install, ensuring long-lasting performance.

Choose polystyrene insulation to contribute to sustainable construction practices and improve energy efficiency in your building

Manufacture & Delivery

We cut our polystyrene wall insulation boards in Johannesburg, Cape Town, Durban & Port Elizabeth. We deliver directly from these locations.

Product Dimensions

By far the most cost-effective polystyrene sheet sizes for cavity wall insulation are our standard board sizes and thicknesses. Our building code requires at least a thickness greater than 40mm to meet thermal insulation requirements. Cold rooms will require significantly thicker boards.

Our standard board sizes by thickness (mm) x width (mm) x length (mm) are:

- 30mmx 1200mm x 2500mm
- 40mm x 1200mm x 2500mm
- 50mm x 1200mm x 2500mm
- 75mm x 1200mm x 2500mm
- 100mm x 1200mm x 2500mm
- 125mm x 1200mm x 2500mm
- 150mm x 1200mm x 2500mm
- 200mm x 1200mm x 2500mm
- 300mm x 1200mm x 2500mm
- 600mm x 1200mm x 2500mm

Polystyrene Density

Medium Density Polystyrene

Current Lead Times

We cut our polystyrene wall insulation boards on demand. Lead time can range from 3 to 7 working days.

Our Google Reviews

Since 2016, Polystyrene Product Company has remained the highest and best-reviewed national polystyrene supplier. We have delivered polystyrene to most places in South Africa and neighbouring countries. Service is everything to us!