Window & Door Fitters in Port Talbot. MPN Windows and Doors shop store showrooms in Port Talbot your local trusted Veka and Fensa registered company. Buy local buy sfe we offer 10-year insurance backed guarantees. High Quality Windows & Doors · Conservatories · Canopies & Car Ports · White & Wood Grain Profiles · Sliding Sash Windows · Our Best Price From The Start to the job done right.