The home ceremony for use of the Advent wreath is simple. It consists of Collects, hymns and prayers proper to the Advent season. It can be put together as follows:

On the first Sunday of Advent, the family gathers for the blessing of the wreath by the father, who begins:
Father: Our help is in the Name of the Lord.
All answer: Who made heaven and earth.
Father: Let us pray. O God, by whose word all things are sanctified, pour forth Your blessing upon this wreath, and grant that we who use it may prepare our hearts for the coming of Christ and may receive from Your abundant graces. Through Christ our Lord.
All: Amen.
Father sprinkles the wreath with holy water.
Then the youngest child, lights the first candle, and the prayer for the first week is said.
Father: Let us pray. Stir up Your might, we beg You, O Lord, and come, so that we may escape through Your protection and be saved by Your help from the dangers that threaten us because of our sins. Who lives and reigns for ever and ever.
All: Amen.
During the first week one candle is left burning during the evening meal, at prayers or at bedtime.

Two candles are lighted on the second Sunday and allowed to burn as before.
The prayer for the week is:
Father: Let us pray. O Lord, stir up our hearts that we may prepare for Your only begotten Son, that through His coming we may be made worthy to serve You with pure souls. Through the same Christ our Lord.
All: Amen.

Three candles, including the rose candle, are lighted on Gaudete, the third Sunday, and during that week. The following prayer is said:
Father: Let us pray. We humbly beg You, O Lord, to listen to our prayers; and by the grace of Your coming bring light into our darkened minds. Who lives and reigns for ever and ever.
All: Amen.

All four candles are lighted on the fourth Sunday and allowed to burn as before. The prayer said the fourth week is:
Father: Let us pray. Stir up Your might, we pray You, O Lord, and come; rescue us through Your great strength so that salvation, which has been hindered by our sins, may be hastened by the grace of Your gentle mercy. Who lives and reigns for ever and ever.
All: Amen.

At the end of Advent, candles and ribbons are changed to white, evergreens renewed if necessary, and tiny Christmas balls added to decorate the wreath.

Source: Domestic Church