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Contractor meaning

What does Contractor mean?
In construction and engineering projects, a contractor is the business or individual engaged by the employer or client to carry out the works under a construction contract. In standard forms (JCT, NEC, FIDIC), “Contractor” denotes the main contracting party responsible for delivering the works, whether by its own workforce or through subcontractors. Depending on procurement route, the contractor may have build-only obligations or combined design and build/EPC responsibilities. Key legal features include duties to provide materials and workmanship, comply with law and site safety requirements, programme and coordinate the works, maintain insurances and performance security, manage subcontractors, achieve practical/substantial completion, remedy defects, and provide collateral warranties and bonds or parent guarantees where required; typical risk and payment mechanisms cover variations, extensions of time, liquidated damages, retention, interim payments and adjudication. The expression is used across UK and Ireland. Health and safety legislation gives meanings to “contractor” and “principal contractor” (CDM Regulations in Great Britain and Northern Ireland; Safety, Health and Welfare at Work (Construction) Regulations 2013 in Ireland, where the analogous role is the PSCS). Construction payment legislation (Housing Grants, Construction and Regeneration Act 1996; Construction Contracts (NI) Order 1997; Construction Contracts Act 2013 (Ireland)) governs adjudication and payment.
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View the related Checklists about Contractor

CHECKLISTS
Principal designer under the CDM Regulations 2015 (Great Britain): appointment, competence, pre‑construction co‑ordination and the health and safety file—lawyers’ checklist

For further information on the principal designer’s responsibilities and remit, consult the following: Construction (Design and Management) Regulations 2015, SI 2015/51 (CDM Regs 2015) HSE Guidance on the Construction (Design and Management) Regulations 2015 CONIAC Industry guidance for Principal Designers Practice Note: CDM Regulations 2015—the role of the principal designer Appointment of the principal designer On any project involving more than one contractor, the client is required to appoint the principal designer formally and in writing. This appointment should be made as soon as practicable and, in any case, before the construction phase begins, without delay...

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CHECKLISTS
Construction (Design and Management) Regulations 2015: Contractor and Principal Contractor Duties Checklist (Great Britain)

For further information about the responsibilities of the contractor and the principal contractor, consult: Construction (Design and Management) Regulations 2015, SI 2015/51 (CDM Regs 2015) HSE Guidance on the Construction (Design and Management) Regulations 2015 CONIAC Industry guidance for Contractors CONIAC Industry guidance for Principal Contractors Practice Note: CDM Regulations 2015—the role of the contractor and principal contractor Duties of all contractors A contractor must: confirm, prior to taking on the appointment, that it possesses the necessary skills, knowledge and experience and, where it is an organisation, the organisational capability, to discharge its role in a way that safeguards the health and safety of anyone impacted by the project before starting work, ensure the client is aware of their duties under the CDM Regs 2015 (see Practice Note: CDM Regulations 2015—the role of the client) ...

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CHECKLISTS
Construction parent company guarantees: contractor-side review and negotiation checklist

This checklist sets out the key issues to consider when reviewing a PCG on behalf of a contractor who is being asked to provide a PCG. The terms 'contractor' and 'employer' are used, but the same principles also extend to arrangements between a contractor and a sub-contractor, or between an employer/contractor and a consultant. As PCGs are commonly bespoke, the particular context should be taken into account when assessing a PCG. For a fuller discussion of these points, see Practice Note: Parent company guarantees (PCGs) in construction—drafting and negotiation issues. Is the contractor obliged under the Building Contract to provide a PCG? If not, there is no requirement for the contractor to deliver one. Nevertheless, a contractor might still agree to give a PCG to reassure the employer and to create or sustain a good working relationship. Do the contractor’s internal policies allow the issue of PCGs, and is any approval necessary? Many businesses would opt to give a PCG rather than a performance bond,...

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FLOWCHARTS
Section 423 Insolvency Act 1986 (England and Wales and Scotland): Flowchart of Requirements and Claim Steps for Transactions Defrauding Creditors

This flowchart sets out the process under the FIDIC Red, Yellow and Silver Books, 1999 editions, for defects under: clause 7.5, where Plant, Materials, design or workmanship are discovered to be faulty or otherwise non-compliant with the Contract, and the Employer rejects the relevant Plant, Materials, design or workmanship clause 7.6, when the Employer directs the Contractor to strip out and substitute any non-compliant Plant or Materials, to take out and reperform any other work that does not meet the Contract, or to carry out any work urgently needed to protect the safety of the Works clause 11.1, under which the Contractor must perform all tasks necessary to make good defects or damage, as notified by the Employer on or before the end of the Defects Notification Period clause 12.3, if a Test after Completion is not passed, and clause 11.1(b) concerning the rectification of defects applies (Yellow and Silver Books only) For further details, see Practice Note: FIDIC Contracts (pre–2017...

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FLOWCHARTS
FIDIC Silver Book 2017 clause 20.2 claims: Employer and Contractor procedures, notice/time-bar rules, and 20.2.4 differences from Red/Yellow Books – flowchart

Prepared with Anthony Shatz of Fladgate LLP, this flowchart outlines the steps to be taken and the key matters to consider for a transfer of shares in a joint venture company (JVC), where a right of first refusal (ROFR), together with drag along and tag along provisions, appear in the articles of association/shareholders’ agreement...

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FLOWCHARTS
Employer and Contractor Claims Procedure under FIDIC 2017 Red and Yellow Books, Clause 20.2—Flowchart

This Flowchart Helps determine whether the stamp duty land tax (SDLT) higher rates surcharge applies to a transaction. The higher rates surcharge covers acquisitions of certain additional residential properties by individuals, and any residential purchases by purchasers who are not individuals as well. Read this Flowchart in full alongside Practice Note: Higher rates of SDLT on additional residential properties. To identify which rate applies to a transaction, refer to What rate of SDLT applies to my transaction?—Flowchart and Practice Note: Rates of SDLT. This Flowchart proceeds on the basis that: the buyer is acquiring one property, and that the acquisition is not linked with any other transaction...

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NEWS
English Commercial Court grants anti-suit injunctions to uphold Paris-seated ICC arbitration and restrain Russian proceedings—Bayerische Landesbank v Ruschemalliance

Bayerische Landesbank and another v Ruschemalliance LLC [2024] EWHC 1822 (Comm) What are the practical implications of this case? In keeping with comparable determinations, this judgment succinctly sets out the jurisdictional thresholds and principal considerations the court applies when evaluating applications for anti‑suit injunctions. It underscores the judiciary’s practical bent and operates as a constructive illustration of inter‑court co‑ordination, projecting a clear signal where numerous contests flow from identical underlying events, even though such matters are dealt with at varying moments and tiers of the court structure. In sum, the outcome reasserts the English courts’ steadfast commitment to upholding arbitration, including in circumstances where the arbitral seat is situated in a foreign state. What was the background? In 2021, the defendant, Ruschemalliance LLC (“RCA”), a Russian entity, entered into two Engineering, Procurement and Construction agreements for the development of liquefied natural gas and gas processing plant facilities in Russia. The obligations owed by RCA’s counterparties, the German companies Linde GmbH and Renaissance Heavy Industries LLC (together,...

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NEWS
Construction law update: TCC Sunday deadline ruling, HRB gateway updates, PAP reform, UKSC digital portal, investment treaty award upheld, CIS change for traffic management, SBCC 2025 pricing, sector news

In this issue: Contract law Building safety Litigation Arbitration Tax for construction lawyers Standard form contracts Construction industry news Daily and weekly news alerts New and updated content Construction trackers Contract law Employer deemed out of time in issuing a notification on the Monday after a Sunday deadline (My Contracts v 74 Hamilton Terrace) In My Contracts Ltd v 74 Hamilton Terrace Freehold Ltd [2024] EWHC 2896 (TCC), the TCC issued a declaration at the contractor’s request concerning the construction of a clause that imposed a deadline for the employer to notify costs for which the contractor was responsible. The court concluded the employer missed the deadline by serving the notice on the Monday immediately after the final day for service, which had fallen on a Sunday. Central to the decision was that the clause made no provision for the period to be calculated by reference to ‘Business Days’. See News Analysis: Employer...

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NEWS
Weekly construction law update: JCT termination decision, CLLS LoI 2024, Welsh BSA handbook, Scottish SBA Specification, expert replaced after solicitor interference, RIBA/CLC trends, JCT 2024 and BSA finance guidance

In this issue: Standard form contracts Building safety Expert witnesses Construction industry news Daily and weekly news alerts New and updated content Construction trackers Standard form contracts CLLS publishes 2024 edition of Letter of Intent The CLLS has released the refreshed 2024 edition of its Letter of Intent. Our commentary reviews the revisions made. See News Analysis: City of London Law Society publishes 2024 edition of Letter of Intent. Court refuses declaratory relief in JCT termination payment dispute (Shaylor v Valesecure) In Shaylor Group Ltd (in administration) v Valesecure Property Ltd (in liquidation) [2024] EWHC 750 (TCC), the Technology and Construction Court declined to issue declarations regarding the contractor’s right to payment after the termination of a JCT-based contract. In doing so, the court explored noteworthy issues of contractual interpretation, including the methodology for assessing sums owed to the contractor post-termination and the impact of an ineffective assignment by the employer. See News Analysis:...

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View the related Practice Notes about Contractor

PRACTICE NOTES
UK tax structuring for cross‑border IP development and acquisition: IFA regime, merged RDEC/ERIS, overseas R&D restrictions, transfer pricing, trading requirement, capital allowances, and patent box nexus

Successive UK governments have aimed to cement the UK as one of the world’s most appealing settings for innovation and enterprise. To that end, a wide-ranging suite of tax incentives has been rolled out to encourage innovative companies, supporting both investors and trading entities, and assisting businesses at every phase of a business’s life cycle. These incentives include: R&D tax reliefs patent box business asset disposal relief (previously entrepreneurs’ relief) capital allowances for purchases of: knowhow patents, and plant and machinery venture capital trusts the enterprise investment scheme, and the seed enterprise investment scheme This Practice Note outlines the UK position on key tax considerations when determining how to structure an innovative business with international or global aspirations. The observations are general in nature and work on the basis of a clean slate; revisiting an existing IP ownership arrangement will inevitably demand a bespoke solution (notably...

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PRACTICE NOTES
Service provision changes under TUPE 2006 (UK, post-2014): definition, scope, client/activity identification, fragmentation and multi-transferee transfers, organised groupings, exceptions, agencies, and outsourcing/insourcing drafting and risk

Service provision changes (SPCs) This Practice Note explores service provision changes (SPCs) under the Transfer of Undertakings (Protection of Employment) Regulations 2006 (TUPE 2006), SI 2006/246, reg 3(1)(b), arising when activities are outsourced, brought back in-house, or a contractor or service provider is replaced. It explains the approach for cases where the relevant transfer under TUPE 2006 occurs on or after 31 January 2014, and addresses scenarios typically encountered in outsourcing, insourcing, or a change of provider. The Note also clarifies how SPCs operate in those contexts. For the pre-31 January 2014 position, refer to the government’s TUPE 2006 guidance (June 2009)—applicable only to transfers on or before 30 January 2014 and not updated in light of more recent case law—and to Practice Note: TUPE—the pre-January 2014 position [Archived]—Service provision changes. A switch in service provider can constitute a ‘service provision change’ within TUPE 2006, irrespective of whether it is also a ‘business transfer’. For further detail on business transfers, see Practice Note: TUPE—business transfers. Distinct from...

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PRACTICE NOTES
Personal Injury and Clinical Negligence July 2025: discount rate, costs/QOCS, RTA reforms, CPR updates and leading cases (England and Wales) [Archived]

PI & Clinical negligence horizon scanner—July 2025 [Archived] ARCHIVED: This Practice Note is archived and is not maintained. It summarises the principal legal developments relevant to personal injury and clinical negligence practitioners as at July 2025. For developments predating this horizon scanner, see PI and Clinical Negligence horizon scanning and key cases—overview. Key PI and clinical negligence developments The personal injury discount rate—a review In late 2024, the Lord Chancellor, Shabana Mahmood MP, revealed the outcome of her five‑month review of the discount rate, initiated in July 2024. One month after the new +0.5% discount rate took effect, Thea Wilson (barrister at 12 King’s Bench Walk) assesses its impact on cases, the responses from claimant and defendant representatives, and the consequences of the change for legal practitioners. See News Analysis: The personal injury discount rate—a review. MoJ announces reduction in CFO’s interest rates The Ministry of Justice (MoJ) has announced lower interest rates for the Courts Funds Office’s (CFO) special and basic accounts...

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PRECEDENTS
Precedent JCT Standard Building Sub-Contract 2024: Agreement, Particulars and Amendments (Procurement Act 2023, Building Safety/HRB, BIM, Bonds, Warranties) — England and Wales

Agreement concerning [ insert brief details of the works/project ] at [ insert address of works ] (incorporating, among other things, the JCT Standard Building Sub-Contract Agreement 2024 (SBCSub/A 2024) and the JCT Standard Building Sub-Contract Conditions 2024 (SBCSub/C 2024), each as amended and supplemented as set out in this Agreement and in the Schedules to it). This Agreement is dated the [ insert number ] day of [ insert month ] 20[ insert year ] Parties [ insert name of the Contractor ] (company registration number [ insert number ]), whose registered office is at [ insert address of the Contractor ] (“the Contractor”) [ insert name of the Sub-Contractor ] (company registration number [ insert number ]), whose registered office is at [ insert address of the Sub-Contractor ] (“the Sub-Contractor”) Now it is agreed that: 1 Interpretation In this Agreement, words and expressions carry the meanings respectively attributed to them in the JCT SBCSub/A 2024 and...

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PRECEDENTS
Comprehensive Amendments to SBCC 2016 Standard Building Contract (Without Quantities) for Scotland: Design Liability, Third-Party Agreements, Insurance, Bonds, Collateral Warranties, Payment, Retention, Fluctuations, Dispute Resolution and Insolvency

The Contract comprises the completed Standard Building Contract Without Quantities for use in Scotland 2016 published by the SBCC subject to the following amendments: Recitals and Articles updated: contractor to provide a master programme and Schedule of Information Requirements; CDP responsibility accepted; Principal Contractor duties priced; arbitration deleted; Schedule of Amendments prevails; Third Party Agreements duties. Contract Particulars: arbitration entries removed; Rectification Period set at 12 months; fluctuations and certain PII/guarantee entries deleted. Conditions: key definitions revised (Practical Completion, Copyright Material, Design sub‑contractors, Funder, Site); Scottish jurisdiction; approvals mean principles only; entire agreement; variations in writing. Design/materials/programming: contractor accepts ER/CP; quality and non‑deleterious materials; programme reporting; site risk; drawings/info supply; tighter discrepancy notices. Time/defects: mitigate and advise on delay; narrower Relevant Events; Practical Completion clarified; stronger rectification, consequential damage and indemnity; phased as‑built/occupation information. IP/confidentiality/BIM: broader licence, moral rights waivers and delivery; confidentiality reinforced; BIM where adopted. Management/sub‑contracting: access, approved Site Manager, meetings; prescribed sub‑contracts; collateral warranties/third‑party rights; CDM duties; insurance...

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PRECEDENTS
Precedent Film Crew Member Services Letter Agreement (Freelance; Independent Contractor) with IP Assignment, Confidentiality and Data Protection — England and Wales

From: [ insert name of production company ] at [ insert address ] (the Producer) To: [ insert name ] at [ insert address ] (you) Date: [ date ] Dear [ insert name ] We write to record the agreement between you and the Producer for your services, which will be provided under the terms and conditions detailed below. In this letter, Personal Data refers to any details about a living person that enable identification, whether directly or indirectly, notably by reference to an identifier such as a name, an identification number, location data or an online identifier, or to one or more elements specific to that individual’s physical, physiological, genetic, mental, economic, cultural or social identity. 1 Engagement 1.1 The Producer retains you and, in consideration of the Producer’s undertakings set out in paragraph 3, you agree to supply the Producer with your services as a [ specify capacity ] (Services) in connection with [ insert name of production ] (the...

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View the related Q&As about Contractor

Q&As
Case law on JCT SBC 2011 clause 2.27.1 compliance

Clause 2.27.1 of the JCT Standard Building Contract 2011 (SBC) Clause 2.27.1 provides that where it becomes reasonably clear that progress of the Works, or any Section, is delayed or likely to be delayed, the Contractor must at once notify the Architect/Contract Administrator, explaining the material circumstances, including the reasons for the delay, and in that notice point out any occurrence he regards as a Relevant Event... Lexis+® UK practical point: the same wording appears in the Standard Building Contract 2016 (cl 2.27.1) and in the JCT Design and Build Contract 2011/2016 (cl 2.24.1), save that in the design and build forms the addressee ‘Architect/Contract Administrator’ is replaced by the ‘Employer’... Two principal questions arise when deciding whether a notification clause such as SBC clause 2.27.1 has been properly observed: what does the obligation to give notice ‘forthwith’ encompass, and is the contractor obliged to meet this condition? what level of notification/particulars of the ‘material circumstances’ must be provided? ...

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Q&As
Public contract: supplier ceases trading - award to another original bidder without re-tendering?

Assumptions have been made that this is an above-threshold procurement, conducted via a fully compliant public purchasing process in line with the Public Contracts Regulations 2015 (PCR 2015), SI 2015/102, and that standstill notices were issued under PCR 2015, SI 2015/102, reg 86, to the winning tenderer and all unsuccessful tenderers, across the procurement process. We further assume the original contractor stopped trading (without entering insolvency) at any stage. Consequently, we have not examined the safe harbours that allow for modifying or substituting a contractor under PCR 2015, SI 2015/102, reg 72(1)(d) for this analysis. Where a public contract has collapsed because the supplier has stopped trading (with no sign of insolvency), and the contracting authority is contemplating appointing a replacement, several points require attention by decision-makers herein. A few illustrations are outlined below...

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Q&As
Contractor adjudication to recover retention monies: case law

Retention Retention describes the portion of interim payments the employer withholds as security for the contractor’s future performance of its duties and to encourage the contractor to discharge those duties in full and properly. For further details, consult the Practice Note: Retention of payment in construction contracts. When retention is to be released to the contractor depends on the particular contract terms for the project. Typically, half of the retained sum is paid out at practical completion, with the balance thereafter following completion of any remedial works for defects reported within the defects liability period. Consequently, if these milestones are reached before the final certificate is issued, the contractor may have a right to seek payment of some or all of the retention...

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