MJ Windows is an established Northwich business with over 25 years experience, we work closely with manufactures of the finest components to deliver a wide range of residential and commercial PVCu windows, doors, conservatories and porches. MJ Windows also offer replacement double glazing, secondary glazing and roofline (fascias, soffits & guttering) work. We offer free no obligation quotations for residents of Northwich and the surrounding Cheshire areas.MJ Windows is a Fensa registered company.