Snagging list for a commercial handover: how to run it

A commercial handover is not a domestic snag with more rooms. It is a contractual event tied to practical completion, retention and the defects period, and it turns on things a house never has: mechanical and electrical commissioning, fire and life-safety systems, and a stack of documentation that has to be right before anyone signs. Get the snag list wrong and it costs you retention and time, not just goodwill. This guide covers what belongs on a commercial handover snag list, the order to work in, a worked example, and how to run the whole thing from your phone so nothing gets lost across floors and trades.

What a commercial handover snag list needs to capture

Every item still needs a location, description, photo, owner, status and dates, as on any snag. On a commercial handover the location has to be precise across a larger building, and the list has to reach beyond finishes. Capture:

• Building fabric and finishes. Floors, walls, ceilings, doors, glazing, joinery and decoration, by floor and zone
• Mechanical and electrical. HVAC, power and lighting, fire alarm, emergency lighting, sprinklers and the BMS, checked working and commissioned, not just installed
• Commissioning evidence. Reference to the commissioning certificates and witnessed tests for the M&E and life-safety systems
• Fire and life safety. Fire stopping, compartmentation, fire doors, signage and means of escape, which a commercial building is signed off against
• Documentation. Operation and maintenance manuals, as-built drawings, warranties and the health and safety file, ready to hand over
• Owner and status. The trade or subcontractor responsible for each item, and open, in progress, fixed, verified or closed
• Photo and dates. A clear image, the date raised, and the date and verifier at close

The order to snag a commercial handover

Work a consistent route across the building so nothing is missed and the report is usable by the trades and consultants who close it out:

1. Envelope and exterior. Roof, cladding, glazing, entrances and external works
2. Plant and risers. M&E plant rooms, risers and the main systems, with commissioning status
3. Floor by floor, zone by zone. Each floor in a fixed pattern, fabric and finishes room by room
4. Life-safety and services on test. Fire alarm, emergency lighting, sprinklers, power, lighting and HVAC checked working
5. Documentation check. O&M manuals, as-builts, certificates, warranties and the health and safety file present and correct
6. Common and back-of-house last. Cores, toilets, plant access and any shared areas

A worked commercial snag example

Here is what a handful of well-formed snags look like on a single floor of an office fit-out at handover. It is illustrative only, but it shows the level that closes out cleanly.

Level 3 pre-completion snag. Item 1: Zone A, ceiling grid, two tiles cut short at the perimeter near grid line 4. Owner: ceiling fitter. Status: open. Photo attached. Item 2: Zone B, fan coil unit FCU-3-04, commissioning sheet outstanding, unit running but not signed off. Owner: M&E. Status: open. Item 3: Core, fire door FD30 to stair 2, gap to threshold exceeds tolerance, intumescent seal to check. Owner: door contractor. Status: open. Photo attached. Item 4: Zone A, three double sockets on the south wall dead, circuit to test. Owner: electrician. Status: open. Item 5: O&M manual for the HVAC section not yet issued. Owner: M&E. Status: open. Documentation.

Each item names the exact location, the fault, the trade and where relevant the commissioning or document it relates to. When each party comes back, they know precisely what to close.

Why a spreadsheet fails on a commercial handover

Commercial handover is where a spreadsheet finally breaks. There can be hundreds of items across multiple floors and a dozen trades, plus consultants raising their own lists, and the photos live on several phones with no link to the rows. Nobody is sure they have the latest version, the status is unreliable, and matching a fire-door photo to the right door weeks later is guesswork. Meanwhile retention is sitting on the far side of that list being closed.

A snag list you run from your phone fixes the mechanics. The photo attaches to the item as you raise it, the status moves from open to closed in front of you, and the report is generated from the live list rather than typed up later and emailed round. Parts of a commercial building, plant rooms, basements and cores, often have no signal, so the tool has to work offline and sync later. The point of snagging is to close items out and release retention, and you cannot close what you cannot track.

Frequently asked questions

What is different about snagging a commercial handover?

A commercial handover is a contractual event tied to practical completion, retention and the defects period, and it involves far more than finishes. Mechanical and electrical commissioning, fire and life-safety systems, the operation and maintenance manuals, as-built drawings and the health and safety file all have to be right, alongside the building fabric. The snag list therefore has to cover commissioning and documentation, not just paint and joinery.

What is the difference between snagging and de-snagging?

Snagging is the contractor's own pre-handover check to find and close defects before offering the works for completion. De-snagging is the client or their consultants inspecting and raising their own list at or after handover. Running your own thorough snag first is what keeps the client's list short.

When are commercial snags raised and closed?

The contractor snags before practical completion, the client de-snags at or shortly after, and further defects can be raised through the defects liability period. Each item is tracked to close, because outstanding snags affect retention release and can hold up the final account.

How does FORGE Command handle commercial snagging?

FORGE Command lets you raise each snag on your phone with a photo, location, owner and status, track it through to closed across floors and trades, and export a branded PDF report. Every record is stamped with GPS, weather and time, and it works offline. It is a one payment of £39.99 with no subscription.

Related: snagging list for a new build, snagging list for an extension, site inspection checklist.