You've exchanged contracts on a brand-new home. After months of stress, delays, and paperwork, the keys are finally in your hand. The last thing on your mind is commissioning another survey — after all, it's a new build. What could possibly be wrong?
Quite a lot, it turns out. Independent research consistently finds that new build homes contain an average of 150 defects at completion — and some have considerably more. A professional snagging survey identifies these defects while you still have maximum leverage to get them fixed at the developer's expense. This guide tells you everything you need to know.
In This Article
What Is a Snagging Survey?
A snagging survey (also called a new build inspection or snagging inspection) is a detailed inspection of a newly built property carried out by a professional surveyor. The surveyor assesses the property against the developer's own specifications, building regulations, NHBC Buildmark warranty standards, and accepted good practice in the construction industry.
The output is a comprehensive snagging list — a room-by-room, element-by-element catalogue of every defect, omission, and substandard finish found. This list is then presented to the developer, who is contractually and legally obliged to remedy genuine defects.
Unlike a standard RICS HomeBuyer Report or Building Survey, a snagging survey is specifically tailored to new build properties. It focuses on build quality, finish standards, and compliance with specifications, rather than structural condition or age-related defects.
Why New Builds Have Defects
Many buyers are surprised to learn that new build homes frequently contain significant defects. Understanding why helps you take the issue seriously:
Compressed Build Schedules
Developers operate under significant commercial pressure to complete and sell homes quickly. Tight build schedules mean trades often work simultaneously or in rapid succession, increasing the likelihood of missed or poorly completed work.
Multiple Subcontractor Handoffs
A new build typically involves dozens of separate subcontractors — groundworkers, bricklayers, joiners, electricians, plumbers, plasterers, decorators and more. Coordinating this many trades with quality consistency is inherently challenging, and accountability gaps are common.
Limited Site Inspection Resource
Many large housebuilders manage hundreds of plots simultaneously. Site managers simply cannot inspect every element of every home in sufficient detail. Internal quality control is often inconsistent.
"Pre-Completion" Rush
Developers often rush to reach key financial milestones (end-of-quarter completions, for example). Properties are sometimes signed off and handed over before all finishing work is truly complete — with the expectation that "snagging" will be handled after keys are exchanged.
The Most Common Snagging Defects Found
In our snagging inspections across Wolverhampton and the West Midlands, the following categories of defect come up most frequently:
Cosmetic and Finish Defects
These are the most numerous defects in any snagging list, often accounting for 60–70% of all items:
- Poor paint finish — runs, brush marks, missed areas, wrong colour
- Gaps in skirting boards, architraves, and coving
- Poorly fitted or misaligned internal doors (sticking, uneven gaps, poor ironmongery fitting)
- Cracked, chipped, or misaligned tiles in bathrooms and kitchens
- Poorly sealed joints around baths, showers, and worktops
- Scratched or damaged flooring, worktops, or windows
- Missing or poorly fitted electrical socket and switch plates
- Uneven or incomplete plastering and render
Structural and Build Quality Defects
These are less common but more serious — the defects that, if left unaddressed, can cause longer-term problems:
- Inadequate roof insulation — affects energy performance and can lead to condensation
- Missing or poorly installed cavity wall ties
- Gaps in external wall insulation — cold bridges, condensation risk
- Incorrectly installed roof trusses or inadequate loft ventilation
- Inadequate DPC (damp proof course) installation
- Settlement cracks in internal walls and ceilings (some are normal; extensive early cracking is not)
- Oversite concrete not sealed — radon or ground gas ingress risk
Services and Mechanical Defects
- Boiler not commissioned correctly or missing documentation
- Radiators not balanced — uneven heating throughout the property
- Incorrectly wired sockets or switches
- Missing or incorrectly positioned smoke and carbon monoxide alarms
- Extractor fans not venting externally (a building regulation requirement)
- Hot and cold water pipes not lagged in unheated spaces
- Drainage falls inadequate — slow-draining sinks, baths, or toilets
External and Drainage Defects
- Inadequate drainage falls on driveways and paths leading to ponding
- Missing or poorly installed soakaway systems
- Guttering not falling correctly toward downpipes
- Gaps in external brickwork pointing
- Poorly finished or incomplete landscaping
- Boundary fencing incomplete or incorrectly positioned
- Garage doors not aligned or not weathertight
Average number of defects identified in a professional new build snagging survey
When Should You Book a Snagging Survey?
Timing is critical with a snagging survey. Here's the key timeline:
Before Legal Completion — Ideal but Often Difficult
In theory, the best time for a snagging survey is before you legally complete (exchange final payment and receive keys). This gives you maximum leverage — you could potentially withhold completion until critical defects are resolved, or negotiate a retention sum.
In practice, developers often refuse access before completion. However, under the Consumer Code for Home Builders, you have the right to have the property independently inspected — many developers will cooperate if approached professionally.
Within the First Two Years — Highly Recommended
The NHBC Buildmark warranty (and equivalent warranties from other providers) covers defects notified within the first two years of completion. This is the period during which the developer is directly responsible for remedying defects. A professional snagging survey commissioned within the first few months of moving in gives you the best opportunity to document all defects and have them addressed under this guarantee.
Our recommendation: commission your snagging survey within the first 3 months of completion.
After Two Years — Structural Warranty Still Applies, but Developer Responsibility Reduces
After the two-year developer responsibility period, you enter the NHBC structural warranty period (years 3–10). The developer is no longer directly responsible for non-structural defects. Snagging becomes less useful unless you're identifying major structural issues covered by the warranty.
DIY Snagging vs Professional Survey
Many buyers attempt their own snagging inspection using online checklists. While better than nothing, there are significant limitations to the DIY approach:
| Factor | DIY Snagging | Professional Survey |
|---|---|---|
| Defects identified | Typically 20–40 cosmetic items | Typically 100–300+ items including hidden defects |
| Technical knowledge | Limited — relies on what's visible to untrained eye | Expert — identifies build quality issues, services problems, regulation non-compliance |
| Equipment used | None | Moisture meters, thermal imaging camera, spirit levels, electrical testers |
| Report format | Personal notes | Formal, photographed, room-by-room professional report |
| Leverage with developer | Low — developer may dismiss informal list | High — professional report with RICS/qualified surveyor credibility |
| Cost | Free | From £300–£500 (typically recovers its value many times over) |
| Legal/warranty value | Limited | Formal evidence for NHBC claims, legal disputes, or mediation |
The key advantage of a professional snagging survey is access to specialist equipment and expertise that reveals hidden defects a buyer simply cannot see — poor insulation, moisture ingress, electrical non-compliance, and drainage issues that only become apparent with the right tools and training.
How to Get Defects Fixed by the Developer
Having the snagging report is only half the battle — getting the developer to act on it promptly and properly is the other half. Here's how to do it effectively:
- Submit the report formally in writing. Don't just hand it over verbally. Send a formal written notice (email or letter) to the developer's customer care team, attaching the full professional snagging report. Keep a copy and record the date sent. This creates a paper trail.
- Reference your NHBC or warranty cover. Your developer is bound by the Consumer Code for Home Builders and their warranty obligations. Explicitly referencing these in your correspondence signals that you understand your rights and takes the issue out of the realm of informal requests.
- Set reasonable response deadlines. Request written confirmation of receipt within 5 working days and a remediation schedule within 15 working days. This is reasonable under most warranty frameworks.
- Prioritise safety-critical items. Items affecting safety (electrical issues, carbon monoxide alarms, structural concerns, gas installations) should be flagged as urgent and addressed first. Developers are legally obliged to address safety defects promptly.
- Keep a defect log. For every defect submitted, record the date reported, the developer's response, work carried out, and whether it was satisfactorily resolved. Photos before and after each repair are invaluable.
- Don't sign any satisfaction forms prematurely. Developers may ask you to sign completion certificates or satisfaction documents. Only sign when you are genuinely satisfied that all listed defects have been properly resolved — not just patched over.
- Escalate through the NHBC if the developer is unresponsive. If your developer fails to address legitimate defects within the warranty period, you can raise a formal dispute with the NHBC (or equivalent warranty provider). This process is free and can compel the developer to act.
NHBC Warranty and Your Rights
Most new build homes in the UK come with an NHBC Buildmark warranty (or an equivalent from providers such as Premier Guarantee, LABC Warranty, or BOPAS). Understanding what this covers is essential:
Builder Warranty Period
The developer is directly responsible for remedying defects that arise in the first two years. This covers both physical defects present at completion and defects that emerge during this period due to poor workmanship or materials. You report directly to the developer.
NHBC Structural Warranty
From year three onwards, NHBC provides direct cover for major structural defects. This covers damage to the structure of the home caused by the developer's failure to build to NHBC's technical standards. Non-structural snags are no longer covered. You claim directly from NHBC (not the developer).
The Consumer Code for Home Builders (which most major developers have signed up to) also gives you the right to:
- A reliable completion date and clear handover process
- Access to have the property independently inspected
- A transparent and responsive after-sales service
- Access to an independent dispute resolution service (the IDRS)
If you believe a developer has breached the Consumer Code, you can raise a complaint through the scheme's Independent Dispute Resolution Service — a free, impartial service that can award up to £15,000 in compensation.
What Does a Snagging Survey Cost?
Professional snagging surveys in Wolverhampton and the wider West Midlands typically cost between £300 and £600 depending on the size of the property. Here's a general guide:
Consider this in the context of what's at stake: new build homes in the West Midlands typically sell for £200,000–£400,000+. A professional snagging report that identifies £5,000–£20,000 of defects to be fixed at the developer's expense — rather than yours — represents an extraordinary return on investment.
At Wolverhampton Surveyors, our snagging inspections include a comprehensive written report with photographic evidence for every defect identified, plus a free follow-up call to help you understand and prioritise the findings. We also offer re-inspection services to verify that the developer's remedial works have been carried out to an acceptable standard.
To book a snagging survey or enquire about costs for your specific property, contact our team today.
Key Takeaways
- New build homes average 150+ defects — a snagging survey identifies them while the developer is still legally responsible.
- Commission your survey within the first 3 months of completion to maximise your leverage under the 2-year builder warranty.
- A professional snagging survey finds far more defects than DIY inspection — specialist equipment reveals hidden issues.
- Submit findings formally in writing. Reference NHBC and Consumer Code obligations.
- Don't sign developer satisfaction forms until all defects are properly resolved.
- If the developer is unresponsive, escalate through the NHBC or the Independent Dispute Resolution Service.
- Snagging surveys start from £300 — a small cost relative to the value of defects remediated.
