(1) This section applies if a builder wishes to exclude from the contract price the amount any third person is to receive in relation to the work to be carried out under a domestic building contract—
(a) for the conveying, connection or installation of services such as gas, electricity, telephone, water and sewerage; or
(b) for the issue of planning or building permits.
(2) The builder may exclude any such amount by stating in the contract immediately after the contract price first appears in the contract—
(a) that the cost of the work or thing to which the amount relates is not included in the contract price; and
(b) a reasonable estimate of how much the amount is likely to be.