The Supply of Goods and Services Act 1982 (c 29) is an Act of the Parliament of the United Kingdom that requires traders to provide services to a proper standard of workmanship. Furthermore, if a definite completion date or a price has not been fixed then the work must be completed within a reasonable time and for a reasonable charge. The Act was superseded by the Consumer Rights Act 2015 for contracts entered into from 1 October 2015.
Supply of Goods and Services Act 1982 Wikipedia
Also, any material used or goods supplied in providing the service must be of satisfactory quality. The law treats failure to meet these obligations as breach of contract and consumers would be entitled to seek redress, if necessary through the civil courts. This act also complies with the Sale of Goods Act (1979) (also superseded by the Consumer Rights Act 2015).
The definition of reasonableness given in the Act is opaque. The Act states that a reasonable time (section 14(2)) and a reasonable charge (section 15(2)) are "questions of fact", but it does not explain how the "fact of reasonableness" is to be determined. However, the Unfair Contract Terms Act 1977 and its concomitant case law provided a number of guidelines.