Top Notch Turnkey Services Turnkey interior contractors provide a comprehensive service that covers the entire process of designing and constructing the interior of a property. They will typically begin by creating a design for the interior of a property, and then move on to sourcing materials, construction and installation of fixtures and fittings, decoration, and finally the final handover. Throughout the process, our budget interior contractor will be responsible for ensuring that all regulations, standards and codes are met, as well as providing any necessary advice on interior design and construction. They will also be responsible for managing the project from start to finish, ensuring that it is completed within the agreed budget and timeline.