Concatenating A Field From A View Into One Field

Hi i need to concatenate a value into one field, i currently have a "view" in my sql which is retrieving values from a couple of tables including a junction table "tblUser_Constructor", someof these values are repeating at the moment, the only field changing is the constructor field, which i am trying to concatenate, for instance the following is happening;

 

User_ID       UserName      Constructor_ID    Constructor

1                 Jim                       2                     Keeley

1                 Jim                       5                     Truro

 

 

 below is my view;

 

CREATE VIEW dbo.vwUser
AS
SELECT         dbo.tblUser.User_ID, dbo.tblUser.Username, dbo.tblUser.User_Password, dbo.tblUser.User_Title, dbo.tblUser.User_Forename,
                      dbo.tblUser.User_Surname, dbo.tblUser.User_Phone, dbo.tblUser.User_Mobile, dbo.tblUser.User_Email, dbo.tblUser.Access_Right_ID,
                      dbo.tblUser.Tstamp, dbo.tblUser.Professional_Qualifications, dbo.tblUser.Organisation_Name, dbo.tblUser.Organisation_Address,
                      dbo.tblUser.Is_MainContact, dbo.tblUser.LastLogin_DateTime, dbo.tblUser_Constructor.Constructor_ID, dbo.tblAccess_Right.AccessLevel AS [Group],
                      dbo.tblCompany.Company_Name AS Constructor
FROM            dbo.tblCompany RIGHT OUTER JOIN
                      dbo.tblUser_Constructor ON dbo.tblCompany.Company_ID = dbo.tblUser_Constructor.Constructor_ID RIGHT OUTER JOIN
                      dbo.tblUser LEFT OUTER JOIN
                      dbo.tblAccess_Right ON dbo.tblUser.Access_Right_ID = dbo.tblAccess_Right.Access_Right_ID ON
                      dbo.tblUser_Constructor.User_ID = dbo.tblUser.User_ID