Save on Insulation with National Insulation Supplies

At Cost Estimator, we’re all about helping builders quote smarter and protect their profits. That’s why we only team up with suppliers who get it – like National Insulation Supplies.

National Insulation Supplies is a UK-wide distributor of insulation from major brands like Kingspan, Celotex, Rockwool, Knauf, and more. Their platform combines competitive trade pricing, fast delivery, and bulk deals to help you reduce costs and stay on schedule.

Smart Quotes. Smarter Buying.

Reliable Pricing

Get competitive prices on all major insulation brands, backed by volume discounts and support from a supplier that understands builders.

Fast, UK-Wide Delivery

Next-day options available on larger orders, speak to the team on: 020 3004 5451 to arrange express delivery.

Products for Every Job

From loft rolls to cavity boards, fire-safe to acoustic insulation, whatever the spec, they’ve got it covered.

Expert Advice and Support

Their experienced team helps you order with confidence. No guesswork, just practical advice when you need it.

Exclusive Offer for Cost Estimator Users

Enjoy an exclusive 2% discount through our partnership. Just Click the link below and your discount will be applied automatically, no code needed!

Combine accurate estimating with reliable, affordable materials and keep more profit in every project.

Quote Smarter. Buy Better.

Use Cost Estimator to build faster quotes. Use National Insulation Supplies to cut material costs without cutting corners.