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Review, Advise and Negotiate

The Mechanical & Electrical (M&E) sector is heavily regulated which makes trading with the public or private sectors of the economy, in a Business2Business (B2B) or Business2Consumer (B2C) context unique. Those aspects of trading that generally only affect construction companies are dealt with here and details issues that affect a business from its earliest inception, through to succession planning and beyond.

This area includes expertise on; PQQ and tendering issues, letters of intent, pre-construction agreements, main contracts, sub-contract, sub-sub-contracts, design/consultancy agreements, off-site/vesting certificates, materials agreements, loan labour etc..  

In the construction and facilities management sectors, other than in the consumer market, clients attempt to dictate the terms and conditions upon which ECA Members are engaged to carry out their works.
There are two ways in which ECA Members are commonly asked to enter into contracts with their clients, namely:

  1. Modified standard form contracts i.e. JCT or NEC
  2. In-house bespoke terms and conditions which are procured as an investment in commercial risk protection by the client in question

There are two reasons why modified standard forms or bespoke forms of contract come about:

  1. To recognise specific project risks, e.g. if the project is on a high security risk site, there may be additional contractual requirements surrounding security.
  2. Commercial risk transfer – in order to de-risk the commercial model of their own business, clients will often seek to push, either through the standard form modifications or the bespoke terms, as much commercial risk downwards within the contractual chain as possible.

The latter approach is intended to safeguard the profitability of their businesses, but it will often place unmanageable and overly onerous risk on to the party carrying out the works.

ECA has used its collective experience to assimilate a guidance document that:

       a) identifies common areas of standard form contracts – which broadly represent the industry norm for what is acceptable risk allocation – and/or bespoke terms, and identify where those issues are modified to an ECA Member's detriment;

       b) outlines the risk of those types of clauses;

       c) suggests a risk proportionate approach and rationale for finding and negotiating a compromise which aligns the risks involved with the parties who are realistically and proportionately in a position to manage those risks.

ECA wishes to identify and inform the engineering services sector and ECA Members’ decision on what ‘fair, reasonable and good contractual practice’ looks like. ECA remains committed to fair and open competition and this document is not designed to in any way dictate what may be an appropriate risk allocation for a specific project, or act as a substitute for ECA Members obtaining project and context specific legal advice.

This resource will be updated as the law evolves and as terms and conditions revise to reflect a change in the working environment.

Onerous Terms - Index

  1. Main Contract Discount
  2. Reduced Scope for extensions of time / loss and/or expense
  3. Compliance with the Main Contract
  4. Compliance with ancillary documents not previously seen
  5. Loss of profit on termination
  6. Cross contract set
  7. Late Payment of Interest
  8. Conditions precedent
  9. Extended Payment Period
  10. Variations (i)
  11. Variations (ii)
  12. Indemnity
  13. Retention
  14. Exclusive Remedy Provision
  15. Audit
  16. Insolvency under a third-party contract. Pay-When-Paid
  17. Ownership of the Sub-Contractor’s Equipment
  18. Adjudication
  19. Payment of adjudication costs by referring party
  20. Termination at Will
  21. Sub-Contractor’s Equipment on Termination
  22. Fitness for Purpose
  23. Variations In Writing
  24. Termination At Will
  25. Termination Restrictions Imposed by a Collateral Warranty

Rudimentary terms and conditions for contractors to adopt and freely adapt to suit their particular trading circumstances. 

ECA Conditions of Contract

Contracts can be daunting but they are so important. Contractors who work on a letter of Intent may be found, in a court of law, not to be in contract at all.  Contractors  who contract by starting work, or by responding to request to start work in an affirmative manner, or who sign something ‘in writing’, will all be considered to have entered into ‘Contract’.

When to use a model form of contract

Where the terms and conditions have not been provided before starting work or by the responding to request to start work in an affirmative manner  or by  signing  something ‘in writing’, then the Contractors should use a model form of contract.

See below for guidance notes, templates and more produced by our team of legal & business experts to help ensure business resilience and support to get you specified.

Collateral warranties are a common security document required by developers, funders, clients, purchasers, and tenants — and understanding them is essential for protecting your business.

This workshop, delivered by Rob Driscoll, ECA Director of Legal & Business, draws on experience reviewing thousands of warranties for over 4,000 contractors and consultants across the supply chain. 

You will be guided through the background of collateral warranties, their purpose, market standard approach and the common hotspots and how to approach them. 

Keep your eyes peeled for more Collateral Warranties Workshops being delivered in 2026 through the Growth Hub!


ECA Loan Labour Scheme

ECA understands how important it is to deliver projects on time for clients but that labour requirements are not always the same and can vary depending on workload and projects.

The ECA Loan Labour Scheme gives you the power to implement a more flexible staff arrangement and source local labour from a trusted company.