What Is a Snagging List?
A snagging list is a formal record of defects, unfinished items, and issues identified at or near the end of a construction project. It is used to document everything that falls short of the agreed standard before final sign-off and release of the final payment. The contractor is then responsible for rectifying all snagging items within an agreed timeframe.
The term comes from the construction industry and is widely used across residential new builds, extensions, loft conversions, refurbishments, and fit-outs. On a new build, the developer's own snagging process is sometimes called a pre-completion inspection. On a refurbishment or extension, the client or their contract administrator typically carries it out.
Why Does Snagging Matter?
Construction work rarely reaches completion without minor defects. These can include paint scuffs, misaligned doors, gaps in skirting boards, grout that has not been finished properly, sealant that needs redoing, or incomplete decorating. On larger projects, snagging can also uncover more significant issues such as items that do not comply with the building specification, incomplete mechanical and electrical installations, or workmanship that does not meet the required standard.
A snagging process gives you a structured way to capture and manage all of these issues before you accept the work formally. If you accept without snagging — or if your snagging list is poorly compiled — you may find it difficult to get the contractor back to fix problems after final payment has been made.
When Should a Snagging Inspection Take Place?
Snagging is usually carried out when the contractor declares practical completion — that is, when the project is substantially complete and the space is ready for use, even if minor items remain outstanding. In most standard contracts, practical completion triggers the release of retention (or part of it) and starts the defects liability period.
On residential projects, a snagging inspection typically takes place before the client moves back in or occupies the completed space. This is the ideal time — there is full access, good light, and no furnishings in the way.
How to Compile a Thorough Snagging List
Go through the property room by room and space by space. Check every surface, fitting, and installation against the specification and the drawings. Take photographs of every item you record. Describe the issue clearly and its location specifically.
Common categories to review include decoration (missed areas, poor finish, runs in paint), joinery (gaps, misaligned doors, poorly fitted skirting or architrave), tiling and wet areas (grout, sealant, level surfaces), windows and doors (operation, locking, weatherproofing), electrical (missing plates, unfinished areas, correct fittings installed), plumbing (drips, incomplete sealing, correct operation of fittings), and external works (drainage, paving, level surfaces).
A structured spreadsheet or a purpose-built snagging app works well for capturing and sharing the list with the contractor.
What Happens After the Snagging List Is Submitted?
The contractor should acknowledge receipt and agree a programme for addressing the items. In most contracts, there is an agreed defects liability period — typically six months to one year — during which the contractor remains responsible for remedying defects that arise. Items from the snagging list are normally addressed before this period starts, or within the early weeks of it.
If a contractor refuses to address snagging items, you have remedies under the contract, including withholding part of the final payment equal to the cost of rectification. Having a clear, documented snagging list gives you the evidence base to support this position.
Using a Professional Snagging Inspector
On larger or more complex projects — particularly new builds — many clients commission an independent snagging inspector. These professionals have the technical background to identify issues that a non-specialist might miss, particularly in structural details, building regulations compliance, and mechanical and electrical systems.
For extension and refurbishment work, the principal contractor's contract administrator, QS, or project manager typically oversees the snagging process as part of their role.
Snagging as Part of RCB's Delivery Process
At RCB Design and Build, we carry out an internal pre-completion check before we invite clients to their snagging inspection. Our aim is to hand over projects in a condition where the snagging list is minimal. The client's snagging inspection is a structured walkthrough with a clear written record, and all items are addressed within the defects liability period under the terms of the contract.
If you are planning a project and want to understand how the completion process works, get in touch to discuss how we manage handover and defects.