Family-owned MPN Windows, Doors and Conservatories has proudly become a member of a prestigious national trade body. Independent Network only accepts the country’s most professional window and door companies, and each one must undergo rigorous vetting before being allowed to join, and display the IN branding. Companies, like MPN, must prove that they meet the high standards demanded by the Network and then must agree to continuous auditing to ensure they maintain that same level of absolute professionalism. MPN serves…