West 3 Mechanical Contractors Ltd v Mizen Design Build Ltd

West 3 Mechanical Contractors Ltd v Mizen Design Build Ltd

West 3’s contractual obligation was to install 1 inch TracPipe as the gas distribution pipe from the gas meter room to the flats, with no design responsibility for pipe sizing or compliance with the 1 mbar pressure drop requirement. There was no effective variation of the contract as required by Clause 8.1, and revised drawings were not issued to West 3. The gas pressure defect did not result from any breach by West 3.

Parties
Claimant: West 3 Mechanical Contractors Limited; Defendant: Mizen Design Build Limited
Jurisdiction
England and Wales
Judgment Date
13 December 2013
Procedural Posture
Civil (construction Dispute) / Judgment on Preliminary Issue
Outcome
Declarations granted in favour of West 3; no liability for gas pressure defect found against West 3.
Legal Topics
Subcontractor Obligations, Variation of Contract, Design Responsibility, Interpretation of Contract Terms
Construction Law Contract Law Subcontractor Obligations Variation of Contract Design Responsibility Interpretation of Contract Terms

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Parties

West 3 Mechanical Contractors Limited

Claimant

Mizen Design Build Limited

Defendant

Procedural Posture

Civil (construction Dispute) / Judgment on Preliminary Issue

Legal Issues

  1. 1 What was West 3’s contractual obligation under the Agreement as regards the size of the gas pipework?
  2. 2 Was the original contractual obligation ever effectively varied and, if so, what was the effect of any such variation?
  3. 3 Did the system as originally installed fail to deliver sufficient gas pressure to a substantial number of flats and would the system in the revised drawings have delivered adequate gas pressures to all the flats?

Ratio Decidendi

West 3’s contractual obligation was to install 1 inch TracPipe as the gas distribution pipe from the gas meter room to the flats, with no design responsibility for pipe sizing or compliance with the 1 mbar pressure drop requirement. There was no effective variation of the contract as required by Clause 8.1, and revised drawings were not issued to West 3. The gas pressure defect did not result from any breach by West 3.

Court Disposition

Declarations granted in favour of West 3; no liability for gas pressure defect found against West 3.

Orders

  • Declaration that West 3’s contractual obligation was to install 1 inch TracPipe as gas distribution pipework.
  • Declaration that West 3 had no design responsibility for pipe sizing or compliance with the 1 mbar pressure drop requirement.