Insulation Promotions, Discounts & Deals
This page is where we list any current deals, offers, or promotions. If we have an active discount code, you’ll find it here. If not, you can still count on us for competitive prices and great value every day.
How to Apply Our Discount Codes
If you have a discount code from us, using it is simple:
- Add your chosen products to your Basket.
- Once you're viewing your Basket, look for the Discount Code or Coupon field.
- Enter your code into the box provided.
- Click ‘Apply Code’ to update your order total.
- Your discount will appear immediately if the code is valid.
If a code isn’t working, double-check the spelling, expiry date, and any minimum order requirements.
Disclaimer: Discounts and codes are available for a limited time and may require a minimum spend. Codes must be entered exactly as provided and may not be used with other offers unless stated.
Please be aware that some third-party coupon websites may show unofficial or expired discount codes. Only discounts published by National Insulation Supplies on this website or through our official channels are guaranteed to be accurate.
What Else We Offer
Even when we don’t have an active promotion running, we still provide great value through:
- Competitive everyday pricing across insulation materials, accessories, and tools
- A wide range of trusted brands suitable for both domestic and commercial projects
- Fast delivery options nationwide
- Expert customer support to help you choose the right products
- Bulk-buy savings on selected items
- Bespoke insulation cutting services tailored to your project requirements