Insulation4less
Insulation4less is an online-only supplier of insulation and related building materials, selling to trade buyers and DIYers since 2012. Stock runs from loft insulation and PIR boards to breather membranes and plasterboard, with the big manufacturers well represented. It suits anyone insulating a floor, wall or roof who wants all the materials in one order, delivered to the door.
1on sale376productsUpdated 21st October 2026
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More ways to save at Insulation4less
- NHS discountInsulation4less offers NHS discounts, with verified offers available, potentially through platforms like Blue Light Card.
- Military discountInsulation4less offers discounts for HM Armed Forces Veterans, Reserve, Armed Forces, Royal Air Force, Royal Marines, and Royal Navy, likely through similar channels as NHS discounts.
- Join Rewards ProgramCustomers can earn 500 points for signing up, 1 point for every £1 spent, and 500 points for sharing or liking them on social media. 1000 points can be redeemed for a £3 discount. They also have a referral program where a friend receives £15 off their first purchase over £250, and the referrer earns 1000 points.
- Free delivery over £300Top your basket up past £300 and delivery costs nothing.
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About Insulation4less
What's in stock
The range is organised by where the insulation goes. Floor options cover underfloor, concrete and suspended floors. For walls there are products for cavity, stud, internal and external work, including insulated plasterboard. Roof materials span pitched, flat and warm roofs, rafters, lofts and insulated roofing sheets.
Specialist lines include acoustic insulation for soundproofing and breather membranes from Klober, Proctor and Tyvek/DuPont. Manufacturers on the shelves include Celotex, Kingspan, Rockwool, Knauf Earthwool, Superfoil and Novia.
Delivery, returns and payment
Delivery is free to the UK mainland on orders over £300, and next-day delivery is available when a job can't wait. Unused, undamaged materials can go back within 14 days. You can pay by Visa, Mastercard, PayPal or bank transfer.
Extras for regular buyers
Trade accounts are available for builders and installers. A points-based rewards programme, run through Beans, pays back on purchases and social media activity. NHS staff and HM Armed Forces personnel and veterans can use dedicated discounts. Questions go to the team by phone, email or WhatsApp, which helps when you need a quick answer on thickness or coverage.
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Insulation4less quick facts
| Free delivery | On orders over £300 |
|---|---|
| Delivery | <p>Free UK mainland delivery on orders over £300. Next-day delivery available.</p> |
| Returns | <p>14-day returns on undamaged, unused materials.</p> |
| Payment methods | Visa, Mastercard, PayPal, Bank Transfer |
| Loyalty scheme | Rewards Program |
| Founded | 2012 |
| Headquarters | UK |
| Parent company | Insulation4less Limited |
| Stores | Online only |
Insulation4less contact
- Website
- insulation4less.co.uk
- Phone
- 02035826399
- Hours
- Mon - Fri 8:30 am to 5:00 pm
Insulation4less FAQs
Is delivery free from Insulation4less?
Delivery to the UK mainland is free once an order passes £300. Next-day delivery is also offered, which is handy when a job is about to start.
Can I return leftover insulation?
Yes, within 14 days, provided the materials are unused and undamaged. Check their condition carefully before sending anything back.
Which insulation brands does Insulation4less sell?
Stock includes Kingspan, Celotex, Rockwool, Knauf Earthwool, Superfoil and Novia, with breather membranes from Proctor, Klober and Tyvek/DuPont.
How do I get advice before ordering?
Insulation4less publishes buying guides on its site, and the team can be reached by phone, email or WhatsApp to help you pick suitable materials.
