here at JMG Windows & maintenance we supply only the finest upvc double glazed windows doors & conservatorys, JMG windows & maintenance has been in the window trade for over 20 years supplying essex with double glazing,we are a family run company with family morals, JMG windows prides it self on its customer car and no hassel quotations, We have a long list of customers only to willing recomend JMG Windows & maintenance for our products and quality workmanship to our aftersales