LPC Terrible service/ *********** at highest level

<p>I paid LPC roofing to supply and install my roof. The roof came out with a Mistake because of their incorrect messusurements and now they want me to pay to fix their mistake or leave it as is. They claim I should have seen their messusurements are wrong before I signed the qoute, but whose fault is it? I can't be responsible for their incompetency.They don't care about their customers but money. Why should I pay for their mistake?</p>