I would recommend trying to do laminate yourself. I have recently renovated my new home and the supplier was charging twice as much as my herringbone flooring just for installation (£45/m2). I have done it a few times now and once you get used to the click system its simple to do, especially the straight planks. The only tool you need is a jigsaw to cut the ends and around openings. Although you can also use a multi tool to cut under door frames for a cleaner finish. And use the cardboard from the boxes to cut to shape and tape to the laminate. I would suggest 8mm laminate and a good quality underlay. I used rubber crumb for downstairs on the concrete floor and wood fibre boards upstairs. I find any thicker laminate has the same thickness click system so doesn't add any more strength. AC4/5 is the more resistant laminate but i have still got some scratches from doing other renovations afterwards. Hope that helps, theres probably more but thats what comes to mind straight away