I am in the middle of a very stressful garden room/conservatory installation. The Salesman first visited us on 24 April 2018. We were told installation would take about 10-14 days and would be completed beginning to mid July. The Surveyor came 3 May. By 16 July we hadn’t heard anything and so we started to chase them up. They finally said they would start on 23 July. 23 July they didn’t come due to staff problems. They started the digging out on 24/25th July. 26th July they didn’t come due to staffing problems. Then they worked 26/27th July and came back and finished the basic walls and windows by 31 July.. The team did not know when anyone would come and do roof and rest of making watertight. They did not know when skip would be collected as this is carried out by a different department, which meant we had to park our car on the road, which costs us money as we need to have parking permits to do that. Skip men came unannounced one morning on the off chance we were in…which we happened to be. I chased them up again and was told earliest they could come and do the roof was 13th August. 13/14/15th August they came and did roof and making good the walls. Electrical team came on 15th August and did 1st fix. No-one seemed to know when plastering and 2nd fix would happen. The next day it rained and a leak in roof became apparent. We phoned them again. They said they could not send anyone to fix leak until 24th August. Which means I am left with a conservatory with a temporary floor which causes dust to circulate throughout the whole house. I am having to dust and hoover every day to keep it down. I cannot get the floor done until the plastering of the walls is done. When I mentioned this they said they were not aware of any plastering to be done !! This, even though it is clearly listed on the plans and it is pretty obvious that a briese block wall is going to have to be plastered. When I pointed that out the response from the lady on the installation team was that they were a windows company not a building company and could not be expected to know that plastering needed to be done. As no plastering team had been booked the first date they could send someone out to do plastering would be 6/7th September. They surely should have known that plastering would need to be done. They need a checklist of work to be done. Why send builders to start work before all roof and glass ready??? They further say that the 2nd fix electrics cannot be carried out until 19th September. In the meantime the cement floor is causing lots of dirt and dust throughout house. 8 weeks of shambles and chaos. The problem seems to be that the Installation Centre who book appointments don’t have all the information from site they need. There is no overall Project Manager who has been on site to coordinate all the different teams. Each team only knows their schedule and have no idea on overall project. I have complained to the salesman who came and he said he would look into to it but that was 5 days ago and he hasn't been back to me. I cannot find any way of complaining to the company and pointing out the problems to anyone who cares. Maybe the only way they will take notice of me is if I withhold part of the payment to compensate me for all the stress and extra work. I am not sure how to do that but I am looking into it. I have had Zenith do window installations, a porch, a garage door....this is our 5th contract with them. They were fine on windows but the conservatory seems to be too much for them. Their infrastructure cannot seem to cope with it.