At this point I will remain nameless who the company is, but it’s not a well known brand. It sells premium bathrooms and I went there in good faith. The standard of workmanship was shoddy to say the least, and the company does not communicate well, I often phone them up and keep getting fobbed off. They were ordering parts wrong then blaming me, despite it being their error. The tiller they used, was lazy and spend more time smoking than on the job. When he finally started working he left the house a right mess and did a shocking off cut, I told him to re do it, and it was actually worse! Electricians came to the house, and didn’t even know what they were doing. I had to explain to them. The plumber caused a flood, because he failed to tighten up a pipe wrong, then denied all knowledge of it causing a big flood. I am fed up, and the company just doesn’t want to know. Can I legally refuse to pay the last remaining 20%?