A new build snagger brings trained eyes, a systematic checklist and a formal report format that a homeowner’s own walkaround usually cannot match, but it does not replace your right to inspect and raise issues yourself.
What a new build snagger actually is
A new build snagger is someone who inspects a newly built or newly converted property for defects before or shortly after legal completion, then writes these up as a formal list grouped by location or trade. Some snaggers are independent professionals who do this for a living. Under the New Homes Quality Code Version 2, March 2026, buyers have the right to a pre-completion inspection, and can appoint a professional from a recognised body such as CABE, CIOB, ICWCI, RICS or RPSA with professional indemnity insurance, or carry out the inspection themselves using the NHQB checklist.
So a snagger is not the only route. It is one option among a few, and the choice usually comes down to time, confidence and budget.
What a professional snagger does that you probably can’t
- Knows what ’within tolerance’ actually looks like for things like plaster finish, door alignment, tiling gaps and render, rather than guessing
- Works through a structured checklist so rooms, fixtures and external areas are not skipped because you were tired or rushed
- Recognises patterns that suggest a trade issue rather than a one-off, for example the same plastering fault repeated across several rooms
- Knows which defects relate to warranty technical standards and which are cosmetic preferences, so the report focuses on what a builder is actually obliged to address
- Produces a report format that developers and site managers are used to receiving, which can make it easier to track what has and has not been fixed
What hiring a snagger does not give you
A snagger inspecting your home does not guarantee a developer will fix everything they list, or fix it within any particular timeframe. Under the New Homes Quality Code, where issues breach warranty technical standards, the developer addresses them ideally before legal completion or within 30 days, but this is a code to work towards rather than a promise tied to every individual defect.
A snagging report also is not a structural survey and does not replace the protections under NHBC Buildmark, which runs for two years as a builder warranty period from legal completion, then eight years of insurance against specified structural defects, with a free NHBC resolution service available in the first two years. A snagger’s job is to document visible defects at a point in time, not to assess long-term structural risk.
Doing it yourself instead
If you decide to inspect the property yourself using the NHQB checklist, the main challenge is usually not spotting problems, it is capturing and organising them clearly enough that a developer can act on the list without back and forth.
This is where an app like SayScope can help close part of the gap between a professional snagger and an unstructured walkaround. You photograph each defect, circle it on the photo, and talk through what is wrong, and it leaves you with a report grouped by room and by trade, which is the same kind of structure a professional snagger would hand over. It will not tell you what counts as within tolerance, but it does solve the documentation and organisation side of a DIY inspection.
When it’s worth paying for a snagger
A professional snagging survey typically costs £300 to £600 depending on property size. Whether that is worth it depends on how confident you feel judging finish quality yourself, how much time you have before or around legal completion, and how complex the property is. A straightforward two bedroom house is a different task to a large detached home or a converted block with shared areas.
Some buyers choose a hybrid approach: do their own walkaround early to catch obvious issues, then bring in a professional snagger nearer completion for a second, more technical pass.