have the defective WORK remedied by others

[ром777]

в целом понимаю, но не могу юридически грамотно перевести

In such cases COMPANY may at its option either:
а) at CONTRACTOR’s expense, either re-perform the defective WORK or have the defective WORK remedied by others at best market rates available to COMPANY taking into account HSE, technical and cost considerations

[D-50]

работы по устранению дефектов будут выполнены кем-то другим, но не Подрядчиком

[Dimking]

обеспечить устранение недостатков работы другими/третьими лицами, имхо