Lawn, beech hedge and laurel

I planted a new garden in March/April.Could you advise me as to where I could buy a greenhouse in Ireland? I am looking for a 10ft by 8ft.191The Lawn has grown reasonable well to about 6 cm but is patchy and lots of weeds are coming through. The back garden is particularly patchy. Any recomendation re the weeds, and patchy lawnThe Copper Beach hedge is doing very well. I bought four ft plants and the guy who put down the lawn spread grass seed over the area of the new hedge. Is this OK or should i take up the new gras and just leave as clay? When should I cut back the hedge to promote growth and thickness..Finally, I have planted a retaining laurel hedge again four or five ft high plants. Someone suggested i should cut these back hard in July. Any thoughts re this suggestion. Again grass seed planted in or around the plants…