In your config/settings.cfm file put something like this:
	// Text/select/password/file Fields
	set(functionName="textField,textFieldTag,select,selectTag,passwordField,passwordFieldTag,textArea,textAreaTag,fileFieldTag,fileField",
		class="form-control",
		labelClass="control-label",
		labelPlacement="before",
		prependToLabel="<div class='form-group'>",
		prepend="<div class=''>",
		append="</div></div>",
		encode="attributes"  );
You can add any code you need to and it will be used to augment your use of the form helpers.