Review of DMX Constructions

I hied DMX constructions to build a polycarbonate roof, I noticed workers are not qualified(often they seem don't know what to do) and the they don't use a proper product for eg: when they seal the gutter they use sterofoam melting in some kind of fuel to join the gutter. 5 months after my gutter was leaking and I kept calling this company to send some one to fix, they always promised to send someone and it's been 6 month now that I've been calling them and no one ever turn up! it's just so unfair that I will have to hire a 3rd party to come to fix the mess that DMX contructions did at my house!