Principal Contractor Advisory Support

Need a Competent Health & Safety Advisor for Your CDM Project?

Practical CDM support for Principal Contractors — advice, documentation, and structured systems to help you run organised, compliant projects.

If you’re managing the Principal Contractor role alongside running the job, we provide the expert guidance and support that keeps your Construction Phase Plan, RAMS, and site records properly organised and ready when clients or auditors ask to see them.

Experienced construction safety advisors supporting SME Principal Contractors across the UK.

37 Critical document templates for Principal Contractors: User Manual Index

Purpose and outcome

This resource helps you check the Pre-Construction Information (PCI) you’ve been given and record anything that’s missing, unclear, out of date, or needs confirming. It stops the team “guessing” on site.

Good completion looks like:

You can explain the job scope, site constraints, and key risks in plain terms.
Known high-risk items (services, asbestos, unstable structures, ground issues, public interface) are identified early.
Every gap is logged with a clear request sent to the Client/Principal Designer (PD) and tracked to close-out.
Critical gaps are closed (or properly controlled) before starting the relevant work.
You have an audit trail showing you reviewed the PCI and acted on it.

Who uses it (typical small company set-up)

Role	What they do with the PCI Review & Gap Log
Site Supervisor / Working Foreman	Leads the review, walks the site (if possible), fills in the checklist and gap log, flags “stop” items.
Contracts Manager / Director	Checks the review is sensible, helps chase information, agrees decisions on delays, sequencing, and extra controls.
Principal Contractor (PC) (if you are PC)	Uses the output to plan and brief (RAMS, programme, permits, inductions). Keeps the log as live evidence.
Client / Principal Designer (PD)	Receives the requests, issues updated PCI, revised drawings/surveys, and design risk information.
Subcontractors (as needed)	Input on specialist risks (e.g., demo, roofing, services, groundworks). Confirm what they need before starting.

When to use it (timing and triggers)

As soon as you receive the PCI pack (tender/pre-start) — don’t wait until the week you mobilise.
Before finalising RAMS and the programme — the gaps often change sequencing and controls.
Before starting any higher-risk activity (e.g., breaking ground, demolition, structural alterations, hot works, work at height, isolations).
Any time new information arrives (revised drawings, new survey, change in scope, design change).
After a site visit where you spot differences to drawings/plans.

Minimum expectation: one initial review pre-start, then update it whenever there is a meaningful change or a gap is closed.

Before you start (what you need to have to hand)

Gather what you can first. If you don’t have it, that’s fine—log it as a gap.

The PCI pack (and its version/date): drawings, specs, design notes, surveys, constraints, site rules.
Scope and programme: what’s in/out, proposed start date, phases, access dates, client restrictions.
Any existing surveys/reports: asbestos, services searches, drainage plans, topographical survey, ground investigation, contamination, structural info.
Known site rules: permits, hot works rules, working hours, deliveries, neighbour constraints, emergency arrangements.
Site photos / site walk notes (if you can visit): access points, overhead lines, existing structures, visible services covers, fragile areas.
Previous job history (if you’ve worked there before): “known problems” and lessons learned.

How to complete it (step-by-step)

Step 1: Fill in the project details (so it’s traceable)

Record project/site name, address, client, PD, PC.
Record who did the review and the date.
Record PCI version/date received (this matters when updates come in).
Note the planned start date—this drives urgency for chasing gaps.

Step 2: Do the quick completeness check (first pass)

Use the checklist to quickly see what is present and what is missing. Don’t overthink it—your aim is to spot holes fast.

Tick “Yes” only if the information is usable (current, clear, relevant to the work area).
Tick “No” if it’s missing, too vague, out of date, or clearly doesn’t match the job.
Use the notes column for one-line reminders (the full detail goes in the Gap Log).

Practical tip: If it’s a live services job or any groundworks, treat “no service info” as a high-priority gap immediately.

Step 3: Capture “unusual or high-risk items” early

Use this section to highlight items that can change the plan or stop the job.

Be specific about where it is (area/room/elevation/boundary line).
Write the risk in site terms (e.g., “unknown live cables under slab”, “fragile roof lights”, “possible asbestos insulating board”).
Write what you need before starting (e.g., “updated asbestos refurb survey for this room”, “GPR scan + CAT & Genny + isolation plan”).

Step 4: Log gaps properly (one gap per line)

This is the working part. Each gap should be clear enough that someone can action it without a phone call.

Ref: number each gap (01, 02, 03…).
Topic: keep it short (e.g., “Asbestos survey”, “Electric service plan”, “Traffic management”, “Temporary works”).
What’s missing/unclear/out of date: state exactly what you don’t have (e.g., “no isolations shown”, “survey excludes rear extension”, “utility plan dated 2019”).
Risk if we guess: real consequence (injury, strike, collapse, fire, programme delay, enforcement).
Request sent to: name the person/organisation (Client / PD / other) and how sent (email is best for traceability).
Close-out: write what you received and date (e.g., “updated drawing Rev C + photos received 12/03”).

Rule of thumb: if you can’t safely plan controls from what you’ve got, it’s a gap and it goes in the log.

Step 5: Convert the output into a plan the team can use

Once you’ve logged the gaps, use them to update:

RAMS (method changes, extra controls, sequencing, exclusion zones).
Programme (hold points: “no dig until verified services/asbestos”).
Permits (hot works, excavation/dig permit, lifting, confined spaces where applicable).
Briefings/induction (make sure the key points are understood on day one).

Step 6: Close-out and re-brief

When new info arrives, check it is the latest revision and applies to your work area.
Update the close-out column and attach/record the evidence (drawing number, report title, revision/date).
If it changes the method, update RAMS and re-brief the crew and any subcontractors affected.

Review and approval (sign-off expectations)

Use the sign-off section to show the review happened and the gaps were sent out.

Reviewer (site/supervisor): signs to confirm the PCI was checked and gaps were logged honestly.
Manager/director review: checks priority items, agrees any “no start” hold points, supports chasing the Client/PD.
Gaps issued date: record when requests were sent (email trail helps).
Critical gaps closed? only mark “Yes” if the items that could cause serious harm or major disruption are closed or robustly controlled (with agreement).

Escalation (when to stop and get a decision)

Escalate to management (and do not start that activity) if any of these are not resolved:

Unverified live services in the work zone (electric, gas, water, telecoms, drainage).
Missing/inadequate asbestos information for refurbishment/demolition areas.
Unknown structural stability / need for temporary works (propping, sequencing, partial demo).
Unclear public interface controls (roads/footpaths/schools, deliveries, segregation).
Ground conditions that could affect excavations (collapse, contamination, groundwater, buried obstructions).

Recordkeeping (storage, version control, retention)

Where to store: keep it with your project H&S file/job folder (digital preferred), and a printed copy in the site file if you use one.
Link evidence: save the PCI pack, emails, drawings, and reports in the same folder. Name files so you can tell the revision/date quickly.
Version control: don’t overwrite old PCI packs. Keep them as “superseded” and file the latest as “current”. Your log should reference what version you reviewed.
Retention: keep with the job records for the same period you keep RAMS and project H&S records (follow your company policy/client requirements). If unsure, keep it for several years as it supports your audit trail.
Audit-ready tip: a clear email chain + dated close-out entries are often more useful than long notes.

How often to review/update

Initial review: once, as soon as the PCI arrives.
Update: every time you receive new or revised information, and before each new phase with different risks (e.g., enabling works → demolition → groundworks → steelwork → fit-out).
Site reality check: update after the first day on site if you find mismatches (access, neighbours, services covers, layout constraints).

Common mistakes / pitfalls (and how to avoid them)

Pitfall	How to avoid it
Ticking “Yes” because you have something, even if it’s old or not for the work area	Only accept info that is current, clear, and relevant. If it’s questionable, log it and ask for confirmation.
Writing vague gaps (“need service info”) with no detail	Write exactly what you need: location, service type, isolations, depths, dates, drawing numbers.
Keeping gaps in someone’s head or in site meeting notes	One gap per line in the log. It becomes your tracking list and evidence.
Starting work with “we’ll be careful” controls	Use hold points: no dig/demo/alterations until the critical information is confirmed or controls are agreed in writing.
Not chasing close-out / losing track of what came back	Put dates in the close-out column and attach the actual document/photo. Re-check it answers the gap.
Not updating RAMS/briefings after new information arrives	If the info changes the method, update the RAMS and re-brief. Record that you did.
Mixing multiple issues into one gap line	Split them. It’s easier to assign, chase, and close (e.g., “electric plan” separate from “gas isolation”).

Worked example (realistic scenario)

Job: Small shop refurbishment with new rear doorway and drainage alterations.

Quick check finds: drawings provided, but utility plan is dated 2020; asbestos survey is a management survey only; no info on rear yard drainage run.
Unusual/high-risk items noted: overhead service cable at rear yard; shared alley access with neighbours; hot works needed for steel lintel.
Gap log entries raised:
- Asbestos: request a refurbishment survey for the shop ceiling void and rear wall where the doorway will be formed.
- Services: request updated utility search/plan and confirmation of isolations; plan for CAT & Genny and trial holes before drainage works.
- Drainage: request drainage as-built or permission for CCTV survey; confirm connection point and any shared runs.
Close-out: PD issues refurb survey (dated, covers the work area), updated drawing revision, and a note confirming working hours restrictions. You update RAMS, add a “no break-out until asbestos clear” hold point, and brief the team.

Result: fewer surprises, clearer controls, and a documented trail that you asked the right questions before starting.

Principal Contractor Support

Running a CDM Project as Principal Contractor?

Get the structure, advice, and documentation support you need to manage the role properly.

When you take on the Principal Contractor role, the responsibility for the Construction Phase Plan, site safety records, RAMS, and CDM compliance usually lands on the desk of a busy director or site manager.

CTC South West provides practical advisory support and structured systems that help you keep your documentation organised, your responsibilities clear, and your projects ready for client checks or audits.

Expert CDM support, site-ready documentation, and organised compliance records — all built around how construction projects actually run.

Construction Phase Plans structured and ready for client review
RAMS and project documentation tailored to your actual work
Ongoing competent person support for Principal Contractors

Practical advice from experienced construction safety advisors — supporting SME Principal Contractors across the UK.