Retrofitting
Adding an extra component or feature to a structure that wasn’t part of its original construction such as double glazing, modern heating systems, or smart home upgrades is known as retrofitting.
Refurbishment
Undertaking an improvement process by cleaning, retrofitting, equipping, or decorating a space to enhance its functionality and appeal.
Remodelling
Modifying a structure’s layout, either by altering existing spaces or extending them, to better suit functional or aesthetic needs.
Renovation
Restoring something to its original state or bringing it back to a refreshed and revitalized condition.