I recently ordered 4 x 100mm Celotex GA4100 PIR Insulation Boards (2400x1200) from Online Insulation. They were very reasonably priced and I was more than happy to pay the £30 delivery charge. They were delivered today, after a little bit of chasing as they hadn't arrived on the previous date stated, in perfect condition, well packaged and no signs of damage. I am really happy with the purchase and quality of products. I queried my order on it's original date (as it didn't turn up) via the web chat and someone said they would look into it straight away. Whilst I didn't receive a response or an updated, the order did come the following day, following a call from the delivery person to say they would be with me within an hour. Would highly recommend Online Insulation to anybody.