dte landscaping

Work was completed on Friday 13 October 2017, after many telephone calls, letters to this company they have not addressed the problem. Basically, they were advised 'exactly' what was required at the time of the quotation - how much to excavate the area, the exact base to be laid, Indian Raj sandstone slabs to be used, etc.. NONE of these requests were adhered to. As a result of the area not being excavated and a proper base not being laid I now have many problems (one of which is a major concern). I was totally unaware until a professional pointed it out at the beginning of 2018 which was that as the patio had not been excavated and had been built up on existing, the patio has now been raised and comes one brick below the damp proof surface which is compromising my house - the bricks are already going green (warned this would happen) as no runaway and splash back. Tried to get slabs up by wall but impossible to move myself. Having contacted DTE on numerous occasions by letter, etc. DTE stated they would install a French drain (although initially told by DTE that there was a slope on the patio and that water would run away photographic evidence to prove this was not the case). Upon being told by DTE that they would install a French drain, I again got professional advice - advised that a French drain would definitely NOT suffice. A year on and the patio is WORSE than ever and having had advice from two further professionals the patio needs to be completely taken up (as advised over a year ago), excavated, a proper base laid and the correct (requested) materials used. The patio is now sinking in many areas because the base was laid incorrectly and basically the patio looks a complete mess as stated by texts etc, upon completion. I was hoping to reach a compromise with this company for the bad workmanship provided but just received a letter that they would install the French drain then wanted 'all works' signed off by my son. As the patio now came higher than a drain (they put two house bricks with a slab on top) so as to avoid a hole. Obviously, due to the site not being excavated correctly the patio also came higher at the side gate whereby they laid a slab on a slant to accommodate the difference in the height. I had also requested a retaining wall around the flower bed at the side of the house but told this was not required and they did not even take the patio back to where it was originally. I love my garden and as the patio was the original from when the house was built many years ago it needed new slabs etc. Consequently very upset with this company and would definitely NOT recommend them. Having paid DTE £4000 cash for this work which was NOT carried out as requested it is now going to cost at least £7000 to have this work rectified which I cannot really afford but been advised MUST be done to avoid problems to my house. The last year has been a complete nightmare, have photographic evidence, texts, letters to corroborate this review if required.