Webinars

NEC4 Webinars & Site Diary Tutorials for Construction Commercial Teams

Practical training on NEC4 contracts and site record management from the people who wrote the rules.
Our webinars feature Ben Walker (NEC4 drafter and CEMAR founder) alongside experts from CECA and GMH Planning, covering everything from compensation events to early warnings.
Plus step by step tutorials showing how to get the most from Gather on your projects

NEC4

September 7, 2026

62 minutes

NEC4 Clause 13: Communicating Correctly

Episode 11 of the CECA NEC4 webinar series takes on Clause 13, the eight sub-clauses on communications that take up less than a page in the book and get treated as admin. Ben Walker, Glenn Hide and David Allen walk through all eight: the form a communication has to take, the communication system named in the Scope, the period for reply and how to extend it, the Project Manager's duty to give reasons when withholding acceptance, and the rule that notifications are kept separate. CECA member feedback said the same thing the panel did: most disputes start with a communication procedure that was not followed, not a technical disagreement.

Gather Explained

September 4, 2026

2 minutes

How to Complete a Shift Record in Gather

How to complete a shift record in Gather on site, in six steps: shift details, access, resources, work log, comments and allocation. Works offline, and submitting locks the record for review.

Gather Explained

September 4, 2026

3 minutes

How to Use AWS Rekognition to Make Sense of Construction Site Photos

Gather runs every site photo through AWS Rekognition so it is tagged with what it shows. Search for 'excavation' or 'pipework' and find the photo, not the date it was taken.

Gather Explained

September 4, 2026

3 minutes

How to Use the Gather Gallery to Make Sense of Your Construction Photos

Every photo taken in Gather is timestamped, located and attached to a shift record. The Gallery brings them together so you can find the one photo that matters, months later.

Gather Explained

September 4, 2026

1 minute

Construction Weather Data, Linked to Every Shift Record

Gather links contractual and on-site weather to every shift record automatically, hourly, at every location. Conditions sit beside output, and the QS AI agent answers the commercial question: productive hours lost.

Gather Explained

September 4, 2026

1 minute

Project Documents in Gather: Organise Files with Folders

Drawings, method statements, permits and briefings build up fast. Folders in Gather let you group project documents your way, with status and signing progress still visible.

NEC4

June 8, 2026

58 minutes

NEC4: Contractor's Value Engineering Proposals

This is episode 10 of the CECA / NEC4 webinar series, where Ben Walker, Glenn Hyde and David Allen unpack the two ways NEC4 handles contractor value engineering proposals: a clause 16 change to client scope and a secondary option X21 whole-life cost proposal. They walk through how value is shared under each main option (the value engineering percentage in A and B, the gain-share pot in C and D), why design liability stays put unless X15 changes it, and how to avoid the common mistake of trying to sneak changes through a design submission instead of a proper proposal.

NEC4

May 5, 2026

60 minutes

NEC4 Disallowed Cost Explained

In Episode 9 of the NEC4 Webinar Series with CECA, Ben Walker and Glenn Hide explore disallowed cost under main options C, D and E (with a brief look at option F). They walk through why disallowed cost exists as a commercial control mechanism in cost-reimbursable contracts, where it sits in the payment assessment process, and unpack each of the six categories defined in clause 11.2(26). David Allen from CECA Southern adds the contractor's perspective on how good records, early warnings, and collaboration with the project manager are the most reliable ways to avoid disallowed cost in practice.

NEC4

March 30, 2026

45 minutes

NEC4 Understanding the Activity Schedule

This episode covers the NEC4 activity schedule under Options A and C, explaining what it is, how it drives payments, and why the contractor should prepare it rather than the client. Ben Walker and Glenn Hide walk through the mechanics of correcting, revising, and changing the activity schedule, including two practical approaches for updating prices after compensation events. David Allen from CECA Southern adds a contractor's perspective on the financial and practical pitfalls of poorly structured activity schedules.

NEC4

March 2, 2026

55 minutes

The Role of Contract Data

This episode covers the role of contract data in NEC4, explaining how data part one (client) and data part two (contractor) work together to fuel the contract. Ben Walker uses the analogy of the contract as a car and contract data as its fuel, before exploring italicised terms as the bridge between conditions and data. The session features a live demonstration of NEC Digital by Iain Jeffries from Thomas Telford, showing how the platform prevents incompatible option selections and streamlines the contract data completion process for both clients and contractors.

NEC4

February 2, 2026

50 minutes

NEC4: How to approach Option Z / amendments

This webinar explores when and how to draft Option Z additional conditions in NEC4 contracts, covering best practice principles, common pitfalls, and the balance between cost certainty and value for money. Ben Walker and Glenn Hide walk through real examples of Z clauses that can cause problems, from reducing time bar periods to deleting mutual trust obligations, with practical guidance on testing amendments before implementation.

NEC4

January 5, 2026

65 minutes

NEC4: Programme - Getting it working for you

Glenn Hide and Ben Walker explore why the NEC4 accepted programme is the beating heart of contract management, not just a baseline plan. They cover the programme's life cycle, acceptance and non-acceptance consequences, how to show compensation events and time risk allowance, and why collaborative real-time updates beat parachuting in a scheduler once a month.

NEC4

December 1, 2025

60 minutes

NEC4: Assessing compensation events part 2 - Price

Master NEC4 price assessment with worked examples. Learn why 90% get clause 63.1 wrong and the double exercise most practitioners miss. Free expert training.

NEC4

November 3, 2025

65 minutes

NEC4: Assessing Compensation Events Part 1 - Time

Learn how NEC4 assesses time in compensation events covering dividing dates programme updates and key rules to avoid costly project delays

NEC4

October 7, 2025

65 minutes

NEC4: Notifying compensation events and instructing quotations

Learn how to notify and manage NEC4 compensation events effectively to protect time, cost, and project collaboration.

NEC Contract Early Warnings: A Positive Approach to Project Management

NEC4

September 8, 2025

60 minutes

NEC Contract Early Warnings: A Positive Approach to Project Management

NEC early warnings webinar: Transform confrontational tools into collaborative project management. Learn notification requirements, meeting best practices, and

NEC4

July 8, 2025

30 minutes

NEC4 - Taming Commercial Chaos | NEC People Conference 2025 London

Ben Walker explains how to transform chaotic NEC4 contract admin into effective project management using culture, knowledge and discipline principles.

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Gather Explained

April 30, 2025

2 minutes

What Is CEMAR? Beginner Guide to NEC Contract Software [2026]

Learn how to seamlessly integrate Gather with CEMAR/Thinkproject contract management system, linking shift records to compensation events via API.

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Gather Explained

June 13, 2024

3 minutes

How to Align Your Site Diary with Your Contract

Learn how to better categorise project delivery variances in Gather RMS. Link them to NEC contracts, track early warnings and analyse trends.

Ben Walker: Decoding NEC Contracts and the Value of Site Records

NEC4

March 18, 2024

57 minutes

Ben Walker: Decoding NEC Contracts and the Value of Site Records

Learn how proper site records are vital for NEC contract success, from payment to dispute resolution, to the changing culture of UK construction.

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Gather Explained

March 1, 2024

15 minutes

Simplify Construction Blockade Reporting with Consistent, Structured Site Records

Learn how to streamline blockade reporting on Gather RMS with this step-by-step guide. Plan shifts, record activities, and get real-time insights. It's easy.

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Gather Explained

February 20, 2024

8 minutes

Prepopulate 64% of Your Shift Records on Gather

Plan a week of shifts in under 10 minutes. Prepopulate labour, plant, activities and access so your field teams only need to fill in what actually happened.

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Gather Explained

February 14, 2024

3 minutes

Capture Individual Resource Times on Gather

Discover Gather's new resource time feature, enabling precise tracking of individual work hours and automated fatigue monitoring for safer shift planning.

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Gather Explained

February 12, 2024

3 minutes

Real Time Construction Planned versus Actual Reporting

Track planned versus actual costs and hours in real time using site diary data. See where you're winning, where you're losing, and act before it's too late.

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Gather Explained

February 7, 2024

2 minutes

Tagging Shift Records for Commercial Assurance

Learn how Gather's tagging system helps track weather delays and other project changes, making it easier to analyse impacts and generate detailed reports.

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Gather Explained

January 17, 2024

2 minutes

Gather: The New Name For Raildiary

Watch Raildiary transform into Gather. Our mission: curb the £1.5 trillion cost of bad data in construction through better site data capture across sectors.