Decide what type of room you want and how much money you'll spend. You may need to add or upgrade windows, siding or doors. If the garage is to be remodeled into extra living space, you'll probably want to replace the garage doors, although utilizing the existing doors will save some remodeling funds. This can make the room more of an all-season room by allowing the homeowner to open the doors during nice weather.
Move on to the outside of the garage. If you live in a colder climate, you'll likely need to add some insulation. If you are not utilizing the doors, they must be framed out and sided to match the current siding. Adding more windows or larger windows will also be part of the remodel.
Plan the inside of remodel structure. Determine the electrical outlets, wall insulation, and ceiling type. The average residential garage will not have enough outlets to be used as living space. Since a garage is not usually well-insulated, adding insulation and drywall or other wall covering will make the remodeled room more comfortable for the family. A homeowner may want a drop ceiling to further aid in insulating and add to the room structure.
Cover the floor with carpet, wood, or tile. Choose a flooring cover that will coordinate with the rest of the home. Check the floor for major imperfections and unlevel areas. Major imperfections must be addressed and repaired for a new floor to install easily.
Install the windows, doors, walls, ceilings and floors. The newly remodeled space is ready to paint, trim, furnish and decorate.