Premium Insulation Supplies

Stay energy-efficient year-round with our wide range of insulation materials. From loft rolls to cavity boards, we provide everything you need to keep homes warm in winter and cool in summer — all while saving on energy costs.

Why Choose Our Insulation

Our insulation products meet all building regulations and help improve thermal performance and soundproofing. Whether you’re insulating a roof, wall, or floor — we have the right product to fit your project.

We supply top brands known for durability and ease of installation, making them ideal for both contractors and DIY homeowners.

We Guarantee to Deliver

We maintain large stock levels for all common insulation types, ensuring fast turnaround and on-site delivery when needed. Our team also offers advice to help you pick the right thickness and material for maximum efficiency.

• Loft roll insulation and cavity wall boards
• Thermal, acoustic, and foil-backed insulation
• Energy-efficient materials for all building types
• Fast availability and delivery across Leicester

Choose J R Building Supplies for reliable insulation that keeps properties comfortable and efficient year-round. Contact us for bulk pricing and trade support.