Good product range & found what I wanted quickly using advice notes. Only down side was delivery cost which practically half the cost of product & a big gripe about vat when government tries to penali... See more
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Insulation4less is the largest online independent insulation supplies store. We supply top insulation brands such as Celotex, Kingspan, Xtratherm, Rockwool, Knauf and Isover. We also supply a wide array of building materials to compliment our insulation range. Insulation4less truly is your one stop shop for anything to do with insulation and dry-lining. Get in touch with us today so you can benefit from our reliable, cost efficient and timely support.
Contact info
3rd floor, W1B 3HH, London, United Kingdom
- 02035826399
- info@insulation4less.co.uk
- www.insulation4less.co.uk
Replied to 94% of negative reviews
Typically replies within 2 weeks
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Extremely poor service, broken promises, and no accountability
I ordered insulation boards from this company after being clearly told that orders placed before 11am would be delivered the next day if I paid an £80 delivery charge. I placed my order at 10am and paid the extra fee.
The delivery did not arrive the next day. I had builders on site who were paid but unable to work. After calling the company, I was told they were checking with the depot and that delivery would arrive by the end of the day. It did not.
The same thing happened on day two — no delivery and more money lost in labour costs. On day three, I was told the order would be dispatched within 90 minutes. Once again, nothing arrived.
The delivery finally arrived six days later. Even the delivery driver was surprised, stating the depot is very close to my property.
When I later needed to return boards (which I accept was my error), I was informed I had to buy replacements first and then request a return. Two days later I was told the return would only be accepted with a 20% restocking fee, and I would also need to pay return delivery.
In total, I spent over £500 on materials and incurred additional costs paying builders for several days due to the company’s failure to meet its delivery promise. I requested compensation and received no response.
This is one of the worst customer service experiences I have had. I would strongly advise others to avoid this company.

Reply from Insulation4less
Absolutely excellent service from start…
Absolutely excellent service from start to finish. Siobhan was so helpful and gave the cheapest price online delivering a quality product. Have used this company twice without any issues and would highly recommend
I needed to adjust an order I had…
I needed to adjust an order I had placed online, and the response was extremely prompt and efficient.
All amendments were completed within minutes, and I genuinely felt valued as a customer.
Really great service received
Really great service received! I forgot to select next day delivery and called and spoke to Siobhan at 4pm and she still managed to arrange this for delivery the next day. Great customer service and would highly recommend!
The right insulation for less
Who would have though ordering insulation would be such a headache? Most companies cannot guarantee the brand of insulation and supply whatever they have for that spec, we wanted Celotex. Thankfully Insulation4less actual do supply the brand we wanted and at a very good price. Celotex ordered; Celotex delivered. Simples. Will use again
These guys are pro's
Made the order online but telephoned to query delivery date, gentleman on the phone (sorry didn't get his name, had an Irish accent) was super helpful, materials delivered 3 days later as promised, top class service
Best prices and an overall great service
I shopped around to get the best price as PIR can be expensive in big quantities. Insulation4Less were the cheapest, included free and fast delivery due to the order size, courier was really helpful unloading the delivery. I'll be using them again for big order before the year is finished, thoroughly recommended.
Next day delivery helped
Genuine Celotex insulation boards arrived the next day, cheapest online for the boards, delivery was the main price but still less overall than elsewhere. I asked for next day delivery which arrived in a City Sprint van so no worries about "could be a 26 ton lorry". The only confusing thing was the checkout which didn't offer next day (although the website said it was eligible). I asked the AI phone bot to transfer me to a real person, who sorted it out with an email link to pay the next day surcharge done over the phone. However due to the speed of delivery, price, genuine materials and (eventually) a v helpful real person Shirley Moloney, I have given 5*
Fabulous service
Customer service was fabulous when arranging delivery. The price was brilliant. The delivery driver was very helpful.
Best Value for Money Cellotex PIR Online.
Ordered a consignment of cellotex from Insulation4less and had need to modify my order. Siobhan, calmly, professionally & efficiently dealt with my order revisions (and with the most wonderful Irish acent, one could listening to all day and never tire of!)
Best value for cellotex I could find online, backed up with top notch service and aftersales service. My order arrived exactly when it was scheduled to and in perfect condiction. Many thanks.
Insulation4less provide quality product and excellent customer service …
Insulation4less have provided me with quality material and delivered on time. Prices are very reasonable. Would highly recommend them to any of my friends starting a renovation.
I had a very big project requiring 3700 EcoSlate roof tiles
I had a very big project requiring 3700 EcoSlate roof tiles .
I searched the internet and contacted 3 random companies, considering the spend was over £10000 I would have expected a good response. Well I was disappointed only Insulation4 less responded within 24 hours and the support never left .they doubled checked my calculations. I placed the order It arrived swiftly and the product was fantastic..they made a difficult Job that little bit easier.Thank you .
Excellent value and service
Great service delivered as expected at a good price
Great Service
Great Service, swift delivery and remarkable value!
Thank you!
First order
Ordered from this company for the first time and received part wrong order, one email and everything was sorted asap. Fantastic service.
Be warned
So they reply apologise say they will remove the listing for the non existent product- but again they fail to do this - so others can place orders for something that they know they can’t supply and take your money - be warned - you can’t trust them

Reply from Insulation4less
Reply to Insulation4Less:
Reply to Insulation4Less:
Your response is a disgrace and completely twists the facts. The delay had nothing to do with me — it was entirely caused by your incompetent refund process and poor communication. You asked for separate bank details instead of refunding to my payment card, which I provided immediately. Then you went silent for two weeks, ignoring every email, until I chased you again — only then did you suddenly claim you needed an IBAN because you’re not UK-based.
I sent it straight away, yet you still did nothing until I chased you daily for weeks after that. The refund took over a month — an appalling delay for money that was rightfully mine. Blaming me is shameless. Own your failures and stop misleading customers. Your so-called apology is nothing more than PR damage control. I stand by every word of my review.
Update:
For clarity, your response is not accurate. I have the full email trail proving I provided all requested details promptly and then had to chase repeatedly while you failed to respond for weeks. The refund was only issued after almost a month of daily follow-ups.
I’ll be sending all of these emails to Trustpilot for review so the facts can be verified directly. Once that’s done, I’ll post a full description of the entire timeline here for clarity — so readers can see exactly what really happened. The evidence speaks for itself.

Reply from Insulation4less
Great customer service
Delivered quickly and kept informed throughout the process, really good quality insulation and at a good cost..
Good price
Good price, delivered, exactly what I ordered. No issues
Delivered quickly and well packaged…
Delivered quickly and well packaged placed as close as they could to where I wanted it. No problems ( I never rate 5 unless over and above)
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