Key takeaway: The average new build in the UK has over 150 snags at the point of legal completion. A professional snagging survey carried out by an independent RICS surveyor before you move in gives you the evidence you need to get every defect fixed — at the developer's cost.
What Is a New Build Snagging Survey?
A snagging survey is a detailed inspection of a newly built property carried out by a qualified surveyor before — or shortly after — legal completion. The purpose is to identify every defect, unfinished item and substandard piece of workmanship so that the developer (also called the housebuilder or contractor) can be held responsible for putting it right.
The term "snag" refers to any item that falls below the standard you would reasonably expect from a newly constructed home. Snags can range from minor cosmetic issues like paint drips and scratched skirting boards, all the way through to serious structural defects such as poorly fitted roof trusses, missing fire cavity barriers or inadequate damp-proofing.
In Bolton and across Greater Manchester and Lancashire, we have seen a significant growth in new build housing over the past decade. Sites at Horwich, Westhoughton, Lostock and Kearsley have all added thousands of new homes to the local market. With that growth has come a corresponding rise in buyer complaints about build quality — which is exactly why independent snagging surveys have become an essential part of the new build buying process.
Do New Builds Really Have That Many Defects?
This is the question we hear most often from new build buyers, usually followed by: "But it's brand new — surely everything is fine?" The honest answer is that brand new does not mean perfect. Far from it.
The house building industry operates under significant time pressure. Developers are publicly listed companies with quarterly targets to hit. Site managers are juggling dozens of trades at once. Sub-contractors are often paid per unit completed rather than per hour worked, which creates a powerful incentive to finish quickly rather than finish carefully. The result is that corners get cut — and those corners become your problem the moment you exchange contracts.
Research published by the HomeOwners Alliance found that over 90% of new build buyers reported problems with their home in the first two years. Common complaints include:
- Poorly fitted doors and windows that stick, rattle or fail to seal properly
- Gaps and cracks in plasterwork, particularly at ceiling and wall junctions
- Uneven or hollow floor tiles
- Kitchen and bathroom fittings that are loose or incorrectly aligned
- Radiators and pipework that leak or fail to heat efficiently
- Incomplete or incorrectly installed loft insulation
- Missing or inadequate fire stopping between dwellings (a serious safety concern in terraced and semi-detached new builds)
- Drainage and guttering problems that lead to damp ingress
- External brickwork issues including misaligned pointing, cracks and inadequate weep holes
- Electrical socket boxes that are not flush with the wall surface
On a typical new build in Bolton — be that a three-bedroom semi on a Persimmon or Barratt development or a two-bedroom apartment in a new block — our surveyors routinely find between 80 and 200 individual snags at the point of legal completion. Many of these are minor. Some are not.
Why Timing Matters: Survey Before or After Completion?
Ideally, a snagging survey should be carried out before you legally complete your purchase. This is the most powerful position to be in, because you still have the ability to delay completion if the developer refuses to remedy serious defects. It also means you have a formal, documented record of the property's condition at the point of handover — which is valuable if disputes arise later.
However, many developers will attempt to refuse access to an independent surveyor before completion. This is an extremely common tactic and, frankly, it tells you something important about their confidence in their own workmanship. It is worth noting that you are legally entitled to commission a survey on a property you are purchasing, and a developer who refuses to allow a pre-completion inspection is likely to be a developer worth approaching with some caution.
If you cannot access the property before completion, we strongly recommend booking your snagging survey within the first two weeks after moving in. The sooner the survey is carried out, the sooner the defect list can be served on the developer, and the more time remains within your two-year NHBC (or equivalent) warranty period.
What Does the NHBC Warranty Actually Cover?
Most new build homes in the UK are sold with an NHBC Buildmark warranty, or a similar warranty from providers such as Premier Guarantee or LABC New Homes Warranty. These warranties typically offer:
- Years 1–2: The developer is responsible for fixing defects caused by failure to build to NHBC's Technical Requirements. This is sometimes called the "developer's liability" period.
- Years 3–10: The NHBC (or equivalent insurer) provides insurance cover for structural defects only. Minor defects and cosmetic issues are no longer covered.
The critical window, therefore, is the first two years. Getting a comprehensive snagging survey done promptly means you can identify and formally notify the developer of every defect while they are still legally obliged to repair it. Once the two-year period expires, minor and cosmetic defects become your cost to bear.
What Our Bolton Surveyors Check During a Snagging Inspection
A professional snagging survey is far more thorough than the developer's own internal "sign-off" inspection. Our RICS-qualified surveyors in Bolton check every accessible part of the property, including:
Exterior
- Brickwork quality — pointing, perpend joints, cracking, efflorescence
- Roof covering condition — ridge tiles, verge tiles, flashing and lead work
- Gutters, downpipes and external drainage alignment
- Window and door installation — alignment, draught-proofing, locking hardware
- Damp-proof course height above ground level
- Paths, driveways, boundaries and landscaping as specified
Interior — Every Room
- Plasterwork — cracks, hollow spots, poor finish at joints
- Paintwork — runs, misses, incorrect colour, inadequate coats
- Floor finishes — hollow tiles, gaps in flooring, uneven surfaces
- Joinery — door hanging, operation of handles and locks, skirting and architrave quality
- Electrical — socket alignment, switch operation, consumer unit labelling
- Plumbing — visible pipework, tap alignment, waste trap operation
- Kitchen — cabinet alignment, worktop joins, appliance installation
- Bathrooms and en-suites — tiling quality, grouting, silicone sealing, sanitary ware fixing
Loft and Roof Space
- Insulation depth and distribution
- Roof truss condition and any signs of deflection
- Presence and correct installation of fire cavity barriers (particularly important in terraced new builds)
- Ventilation provision
A Real-World Example from Bolton
Earlier this year, we carried out a snagging survey on a new three-bedroom detached property on a development in Westhoughton, Bolton. Our client had paid just over £280,000 for the home and was due to complete within a fortnight. We identified 147 individual snags, of which 12 were classified as serious enough to warrant formal notification to the NHBC.
The serious defects included: fire cavity barriers missing at the party wall junction in the loft; roof insulation installed at less than half the specified depth; a first-floor window frame that had been installed without a structural lintel of adequate bearing length; and bathroom waste pipework that drained at an incorrect gradient, virtually guaranteeing a blockage within months.
The developer initially disputed several items. Our photographic evidence, combined with reference to the relevant NHBC Technical Standards, meant that every serious defect was remedied before completion. Had our client not commissioned the survey, they would have moved into a home with latent defects that would have been expensive and disruptive to fix retrospectively.
How Much Does a Snagging Survey Cost in Bolton?
A professional snagging survey in Bolton typically costs between £300 and £600 depending on the size and type of property. This is a very small sum compared to the potential cost of remedying defects post-completion, particularly structural or waterproofing issues which can run into the tens of thousands of pounds.
When you consider that a typical snagging survey identifies defects worth several times the cost of the survey itself in remedial works, the return on investment is exceptionally clear.
How to Arrange a Snagging Survey with Bolton Surveyor
If you are purchasing a new build property in Bolton, Horwich, Westhoughton, Wigan, or anywhere across Greater Manchester and Lancashire, we can arrange a snagging survey at short notice. Our surveyors are RICS qualified and fully independent of any developer relationship, so you can trust that our findings are objective and thorough.
We provide a full written report with photographic evidence for every defect identified. The report is formatted so that it can be served directly on the developer or their customer care team, making the remediation process as straightforward as possible.
Ready to book your snagging survey? Contact our Bolton team today for a no-obligation quote. We typically have availability within 3–5 working days and can often accommodate urgent pre-completion inspections at short notice.
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