I ordered a large premium garden office with extra height door and ceiling and concrete base options in mid-April. They required me to pay 50% in advance having advised me on making the order that the shed would be delivered and installed within 21 days. Having made payment they then advised me the concrete base could not be installed until mid May meaning the office would be installed early June - well beyond 21 days. I decided to stick with the order though I was unhappy that I'd not been told this in advance. The concrete base was installed in mid-May by the sub contractors ShedsFirst employ but I was then advised there were delays in getting parts of the garden office delivered from the manufacturer....this is 2 months after I'd made the order. After a lot of pursuing on my part I finally got a confirmed delivery and install date of June 17th. In advance of the install ShedsFirst say they will provide detailed pictures of the fully built office and have the customer see everything is as if should be and provide the customer with the opportunity to advise of any changes wanted. They then expect to take final payment in advance of the install. What I received was 3 very unclear pics of a partially constructed shed that bore little resemblance to a fully built office. ShedsFirst nevertheless tried to ake final payment in advance of delivery and install but when I refused explaining I couldn't have confidence in what I was getting given the information and pictures provided, they eventually agreed to take payment when the office was close to completion on the day of install. I was told the install would take 2-3 hours. On the day of install, a team of 2 people arrived to install the large office . It was apparent straight away that a team of 2 was really inadequate for the scale of the job and the size of the floor, wall and roof panels involved in handling. The installers worked really hard but were clearly struggling and the installation took around 8.5 hours. A significant issue arose with the installation of the doors which as manufactured did not fit the door opening and the double door locks did not align. The installers who were tired and desperate to finish the job tried to "fix" the issue by chiselling out rather than properly plaining and sanding down the door size and by very untidely hacking out the lock area to adjust the lock positions. While doing so the double glazed unit on one of the doors shattered and the inner door frame and lock surrounds have been left in a pretty poor and shoddy state needing repair which is just not acceptable for what is an expensive and supposed to be premium product. The installer suggested that all that was required was to replace the double glazed unit suggesting that the state the door frame and lock surrounds was left in was OK because the doors fitted and now locked. It clearly isn't. I've now got seeing how ShedsFirst address these issues to look forward to.