Engineer did well to avoid discussing cost with us when he came to provide the 'free quote'. He cracked on with the job and we assumed cost was not materially different to the guide price quoted to us over the phone. In addition to the wall mount, engineer hid cable for us by drilling a hold through a 3 inch mantelpiece and stapled the cable to the underside. AFTER completing the job, he then quoted us a cost 130% more than the guided price. After our initial surprise, he told us they could reduce it to 80% more than the guided price. With engineer in the house demanding payment on the spot, we paid him and signed the receipt. After the event discussions with the company's own sales team and rival firms confirmed we had been massively over-charged. When we complained and asked the company to compensate us, they told us we had signed an agreement in advance of work and therefore it was all agreed. THIS WAS A COMPLETE LIE. The engineer had asked us to sign the final receipt i n two different spots- thereby sneakily making us sign a job agreement after the fact. We were admittedly naïve, but the opportunism and then dishonesty employed to completely rip us off was remarkable. To be fair, the engineer did a neat job, but if you are to employ this company make sure you have the cost written in stone before any work is started.