Industrial Service (Telford) Ltd v Charles Ransford & Son Ltd

A fixed-price contract is construed by identifying the work objectively agreed, read in its commercial context. General references to clearing tanks and removing all contaminated waste do not necessarily cover an unlimited quantity of unused material. Where the wording naturally refers to residues produced by the contemplated operation, it does not extend to unused contents whose volume depends on the customer’s choice. A commercially unrealistic interpretation requiring a fixed price for an indeterminate quantity is not preferred. A misunderstanding about contractual scope does not itself justify avoidance. Once the contract is properly construed, it may be unnecessary to decide whether subsequent dealings varied it.

Industrial Service (Telford) Ltd claimed payment on a quantum meruit basis for work undertaken in cleaning tanks and removing contaminated liquid and sludge from the appellants’ timber-treatment plant. The appellants contended that the parties had agreed a fixed price covering all the work performed.

The Telford County Court found that the fixed-price contract covered only the cleaning work, residues and sludge contemplated when the quotation was given, and that additional work was separately payable. The appellants appealed. The central issues were the proper construction of the contractual documents and, if necessary, whether the parties subsequently agreed that additional work would be paid for.

1. Disposition. Lord Justice Waller delivered the judgment, with Sir William Aldous agreeing. The appeal was dismissed and the appellants were ordered to pay the respondents’ costs, summarily assessed at £6,500.
2. No avoidance for misunderstanding. The parties’ misunderstanding about the scope of the work did not provide a basis for avoiding the contract. Mutual mistake had not been relied upon at trial or on appeal. The court therefore had to determine the objective contractual allocation of the work and payment obligations.
3. Construction of the fixed-price contract. The quotation and the letter of 3 November 2003 were construed as covering the removal of waste arising from the cleaning operation, including sludge and approximately 3% residual liquid remaining after the appellants had used the treatment solution. References to clearing and cleaning the tanks did not determine how much material the respondents had agreed to remove. The natural meaning of residual liquid was the quantity left after use, rather than the chemical concentration of the contents.
4. The appellants’ construction would require the respondents to remove an indeterminate volume, potentially ranging from about 70,000 to 200,000 litres, for the same fixed price. That interpretation made little commercial sense and was rejected. The original contract therefore did not include removal of the unused mixed liquid in the tanks.
5. Alternative variation analysis. Although it was unnecessary to decide variation once the contract had been construed, the subsequent communications supported the judge’s conclusion that additional work was to be paid for. The appellants’ responses to the respondents’ notice of extra charges and invoice queried the amount and details rather than denying any liability to pay additional sums.

• Court of Appeal (Civil Division): On appeal from the Telford County Court judgment of His Honour Judge Mitchell dated 14 December 2004, permission having been granted by Brooke LJ, the appeal was dismissed: [2005] EWCA Civ 662.