What Is Snagging and Why Does It Matter?
You’ve exchanged contracts, the build is complete, and completion day is approaching — it’s nearly time to pick up the keys to your brand-new home. But before you start celebrating, there’s one crucial step that every new build buyer should take: a snagging inspection.
Snagging is the process of identifying defects, unfinished work, and cosmetic issues in a newly built property. These “snags” can range from minor cosmetic blemishes — a paint drip on a skirting board or a scratched window pane — to more significant problems like poorly fitted doors, inadequate sealant around bathrooms, or gaps in external brickwork. Even the best-built homes from the most reputable developers can have snags; it’s simply the nature of construction work involving dozens of different tradespeople working across multiple stages.
As a first-time buyer, you might assume that a brand-new home will be perfect. Unfortunately, that’s rarely the case. Research by the Home Builders Federation consistently shows that the vast majority of new build buyers report some defects in their homes. The important thing isn’t that defects exist — it’s that they’re identified and fixed properly, ideally before or shortly after you move in.
If you’re still in the early stages of your purchase, our step-by-step guide to buying a new build explains where snagging fits into the wider process. For now, let’s dive into everything you need to know about inspecting your new home and getting any issues resolved.
Professional vs DIY Snagging: Which Should You Choose?
When it comes to snagging your new build, you have two main options: hire a professional snagging company or do it yourself. Both approaches have their merits, and the right choice depends on your budget, confidence level, and how thorough you want to be.
Professional Snagging
A professional snagging inspector is a qualified surveyor or building expert who will carry out a detailed inspection of your property, checking every room, every surface, every fitting, and every system against industry standards. Here’s what you typically get:
- A comprehensive written report with photographs documenting every defect found
- Assessment of both cosmetic and structural issues
- Checking of plumbing, heating, electrics, drainage, and insulation
- Measurement of room dimensions against the original plans
- Testing of windows, doors, locks, and handles for correct operation
- External inspection including brickwork, roofing, guttering, and drainage
- A professional report that carries more weight when presenting issues to the developer
Cost of Professional Snagging
| Property Type | Typical Cost | Inspection Duration |
|---|---|---|
| 1–2 bedroom apartment | £250–£350 | 1.5–2.5 hours |
| 2–3 bedroom house | £300–£450 | 2.5–3.5 hours |
| 4–5 bedroom house | £400–£600 | 3.5–5 hours |
| Re-inspection (to check fixes) | £100–£200 | 1–2 hours |
DIY Snagging
If you’d rather save the cost of a professional inspection, you can carry out a DIY snag yourself. This requires careful preparation, plenty of time, and a systematic approach. You’ll need:
- A snagging checklist (see our comprehensive snagging checklist) to work through room by room
- Good natural lighting or a strong torch for checking surfaces and corners
- A spirit level for checking that surfaces, worktops, and shelves are straight
- Sticky dots or coloured tape for marking defects so tradespeople can locate them easily
- A camera or phone to photograph every issue you find
- A notebook or app to record descriptions of each defect with its location
Which Is Better for First-Time Buyers?
For most first-time buyers, we’d recommend a professional snagging inspection. Here’s why: as a first-time buyer, you likely haven’t spent years living in different properties and noticing construction issues. A professional knows exactly what to look for, including things that wouldn’t be obvious to an untrained eye — like insufficient loft insulation, incorrect boiler pressure, or fire safety issues. The £300–£600 cost is a small price to pay for the confidence that your new home has been thoroughly checked. If your budget is very tight, a DIY inspection is certainly better than no inspection at all. You can always do a DIY inspection first and then commission a professional check later within the developer’s defect liability period if you’re concerned about hidden issues.
Common Defects in New Build Homes
To help you know what to look out for, here’s a comprehensive table of the most common defects found in new build homes, organised by room and area. These issues appear regularly in snagging reports across all price ranges and from all types of developer.
| Room/Area | Common Defects | Severity |
|---|---|---|
| Kitchen | Scratched worktops, misaligned cupboard doors, poor silicone sealant around sinks, damaged or chipped tiles, drawers not running smoothly, extractor fan not working properly, gaps between worktop and wall | Minor to moderate |
| Bathroom(s) | Incomplete or cracked grouting, poor silicone sealant around bath/shower, toilet not securely fixed, leaking taps or shower, scratched sanitaryware, inadequate ventilation, loose towel rails or toilet roll holders | Minor to moderate |
| Living areas | Paint drips and uneven finishes, scuffed or scratched skirting boards, poorly fitted carpet or flooring, gaps in laminate joints, damaged or scratched window panes, uneven plaster, stiff or poorly aligned doors | Minor |
| Bedrooms | Wardrobe doors misaligned, paint finish poor (especially behind doors and in corners), window restrictors not working, radiators not heating evenly, electrical sockets not level, curtain pole or blind fixings missing | Minor |
| Hallways/stairs | Loose handrails or spindles, uneven stair treads, poorly finished plaster around light switches, scuff marks on walls from construction, front door not sealing properly, letterbox stiff or misaligned | Minor to moderate |
| External walls | Cracked or missing mortar in brickwork, stained or chipped bricks, weep holes blocked, damp-proof course not visible or breached, render cracks or uneven finish, gaps around window frames | Moderate to serious |
| Roof and guttering | Missing or slipped roof tiles, blocked or misaligned guttering, downpipes not properly connected, lead flashing poorly finished, ridge tiles not properly bedded, soffit or fascia damage | Moderate to serious |
| Garden/external | Poor drainage causing waterlogging, uneven paving or paths, fencing not properly secured, turf poorly laid or not rooted, manhole covers not level, external taps not working | Minor to moderate |
| Electrics | Light switches or sockets not flush with wall, missing switch plates, light fittings not working, consumer unit not properly labelled, insufficient socket placement, outdoor lights faulty | Minor to serious |
| Plumbing/heating | Radiators not bleeding properly, boiler pressure incorrect, hot water temperature inconsistent, slow-draining sinks, water hammer in pipes, condensate pipe not properly routed | Moderate to serious |
Where Snags Are Most Commonly Found
Based on typical snagging inspection reports across UK new build properties.
When to Do Your Snagging Inspection
Timing your snagging inspection correctly can make a significant difference to the outcome. There are two main approaches, and understanding the pros and cons of each will help you decide what works best for your situation.
Option 1: Pre-Completion Snagging (Before You Move In)
The ideal scenario is to carry out your snagging inspection after the developer has finished the build but before you complete and move in. This gives the developer time to fix any defects before you take ownership, meaning you move into a home that’s in the best possible condition.
To arrange this, you’ll need to:
- Ask the developer’s sales team whether they permit pre-completion snagging inspections (most do, though some may have specific conditions)
- Coordinate with the site manager to arrange access, typically a few days before your completion date
- If using a professional snagging company, book them well in advance — good snagging inspectors can be busy, especially during peak completion periods
- Allow at least 7–14 days between the inspection and your completion date so the developer has time to address the issues found
Option 2: Post-Completion Snagging (After You Move In)
If a pre-completion inspection isn’t possible (some developers prefer to hand over the property first), you can carry out snagging after you’ve completed and moved in. While this means you’ll be living with defects temporarily, there are some advantages:
- You have unlimited time to inspect at your own pace, without the pressure of a single visit
- You’ll notice issues through daily living that might not be apparent in a one-off inspection (e.g., a window that lets in a draught, a door that sticks in damp weather)
- You have the full two-year defect liability period to report issues to the developer
The best approach for many first-time buyers is a combination: try to arrange a pre-completion inspection for the most obvious issues, and then continue to note additional defects as you live in the property during the first few weeks and months.
The Home Demonstration Visit
Before completion, most developers will invite you for a home demonstration visit (sometimes called a “home tour” or “handover demonstration”). During this visit, the site manager will walk you through the property, showing you how everything works — from the boiler and heating controls to the kitchen appliances and ventilation systems. This is not the same as a snagging inspection, but it is a good opportunity to note any obvious issues. If you’re unsure what to expect during this visit, our guide on what to expect at your first new build viewing covers similar ground.
Your Legal Rights and NHBC Warranty Coverage
As a new build buyer, you have several layers of legal protection when it comes to defects in your home. Understanding these protections will give you confidence when reporting issues and following up on fixes.
The Developer’s Defect Liability Period
For the first two years after completion, the developer is directly responsible for fixing any defects that arise in your new home. This is known as the defect liability period (sometimes called the “builder’s warranty period”). During this time, you should report all issues directly to the developer’s after-sales or customer care team.
The developer is obligated to fix defects that fall below the standard expected of a new home. This includes both the issues found during your snagging inspection and any new problems that emerge during the two-year period. For a full understanding of what’s covered, our guide to new build warranties goes into much more detail.
The NHBC Buildmark Warranty (or Equivalent)
Most new build homes in the UK come with a 10-year structural warranty, most commonly provided by the NHBC (National House Building Council). The warranty has three distinct phases:
| Period | Coverage | Who to Contact |
|---|---|---|
| Years 1–2 (Builder Warranty Period) | Developer must fix any defects or damage caused by failure to build to NHBC standards. Covers everything from cosmetic issues to structural problems. | The developer (their after-sales team) |
| Years 3–10 (Insurance Period) | NHBC covers the cost of repairing damage caused by a defect in specific elements: foundations, load-bearing walls, roof structure, external render, flues and chimneys, drainage below the building, staircases. | NHBC directly (not the developer) |
| Full 10-year period | Protection against complete structural failure or a defect that makes the home unsafe or uninhabitable. | NHBC directly |
It’s important to understand that the NHBC warranty in years 3–10 is more limited than the developer’s warranty in years 1–2. After the two-year defect liability period, NHBC only covers damage caused by defects in the structural elements listed above — it does not cover general wear and tear, cosmetic issues, or non-structural faults. This is why it’s so important to identify and report as many issues as possible during those first two years.
The New Homes Quality Code
The New Homes Quality Code provides additional protection for buyers. Developers registered with the New Homes Quality Board must adhere to specific standards regarding the quality of construction, the after-sales process, and how defects are handled. If you’re unhappy with how a registered developer deals with your snagging issues, you can escalate your complaint through the New Homes Ombudsman.
Consumer Rights Act 2015
As a purchaser, you also have rights under the Consumer Rights Act 2015. Your new home must be of satisfactory quality, fit for purpose, and as described in the sales materials and contract. If it falls short of these standards, you have legal grounds to seek remedies from the developer, regardless of what the warranty covers.
What to Do If the Developer Doesn’t Fix Your Snags
The vast majority of developers have dedicated after-sales teams and will work to resolve snagging issues promptly and professionally. However, if you find that issues aren’t being addressed satisfactorily, here’s a structured approach to escalating the situation.
Step-by-Step Escalation Process
- Document everything in writing. Keep a written record of every defect reported, including the date you reported it, who you spoke to, and any reference numbers. Email is better than phone calls because it creates an automatic paper trail. Attach photographs where possible.
- Follow up regularly. If you don’t hear back within the timeframe the developer promised, chase them. Be polite but persistent. Send a follow-up email every 7–14 days if issues remain unresolved, referencing your original report.
- Escalate within the developer. If the after-sales team isn’t resolving issues, ask to speak to a manager or the site manager. Many problems are resolved simply by reaching someone with the authority to prioritise your issues.
- Contact the warranty provider. If the developer fails to address defects during the two-year defect liability period, contact your warranty provider (e.g., NHBC) directly. They can investigate the issue and, if the developer is at fault, require them to carry out repairs.
- Use the New Homes Ombudsman. If your developer is registered with the New Homes Quality Board, you can raise a formal complaint with the New Homes Ombudsman. The ombudsman can investigate, make binding decisions, and award compensation if appropriate.
- Seek legal advice. As a last resort, if significant defects remain unresolved and all other avenues have been exhausted, consult a solicitor who specialises in construction disputes. Your rights under the Consumer Rights Act 2015 and your purchase contract may provide additional avenues for resolution.
Tips for Getting Issues Resolved Quickly
- Be specific and clear: Instead of “the kitchen isn’t right,” say “there is a 3mm gap between the worktop and the wall tile on the left side of the kitchen sink”
- Prioritise your list: If you have 50+ snags, highlight the most urgent ones first (e.g., anything affecting safety, waterproofing, or security)
- Be reasonable: Understand that some issues genuinely take time to fix, especially if specialist tradespeople need to be scheduled
- Keep records: Photograph defects before and after repair attempts so you can demonstrate whether the fix was satisfactory
- Stay professional: A calm, factual approach is always more effective than an emotional one when dealing with customer care teams
If you’re dealing with snagging issues, it might also be helpful to understand your paperwork and documentation rights, as having your original contract, specification documents, and correspondence organised will strengthen your position in any dispute.
Frequently Asked Questions
Is a snagging inspection worth the cost for a first-time buyer?
Absolutely. A professional snagging inspection typically costs £300–£600, which is a tiny fraction of the total cost of your new build home. Professional inspectors routinely find 50–100+ defects that an untrained eye would miss, including issues that could become costly problems if left unaddressed (such as poor waterproofing, insufficient insulation, or incorrectly installed plumbing). Even if every defect found is cosmetic, the inspection ensures your home is finished to the standard you’re paying for. Think of it as an investment in your peace of mind and the quality of your new home. Budget for it alongside your other purchase costs.
Can the developer refuse to let me do a snagging inspection?
Developers cannot legally prevent you from having a snagging inspection carried out. However, some developers may be reluctant to allow pre-completion inspections (before the keys are handed over). If a developer resists, remind them that the New Homes Quality Code encourages transparency and that a pre-completion inspection benefits both parties by allowing defects to be fixed before handover. If they still refuse pre-completion access, you can carry out a thorough inspection immediately after completion — you have the full two-year defect liability period to report and get issues fixed.
How long does the developer have to fix snagging issues?
There is no single legally defined timeframe for fixing snags, but most developers aim to address reported defects within 30 to 90 days, depending on the nature and severity of the issue. Simple cosmetic fixes (paint touch-ups, sealant repairs) can often be completed within a few weeks, while more complex issues (drainage problems, structural adjustments) may take longer due to the need for specialist contractors. If issues remain unresolved after a reasonable period, follow the escalation process outlined in this guide. The key is to maintain written communication and keep a record of all interactions.
What’s the difference between a snag and a structural defect?
A snag is typically a minor defect or cosmetic issue that doesn’t affect the structural integrity or safety of the building — things like paint blemishes, scratched surfaces, poorly aligned doors, or incomplete sealant. A structural defect is a more serious problem that affects the fundamental structure of the building, such as cracked foundations, subsidence, defective load-bearing walls, or major roof failures. During the first two years, the developer is responsible for fixing both types. After two years, only structural defects are covered by the NHBC warranty (years 3–10). If your snagging inspector identifies anything that could be structural, flag it to the developer immediately and ensure it’s addressed within the two-year window.
Should I delay completion until snagging issues are fixed?
This is a decision that requires careful consideration and advice from your solicitor. In most cases, you cannot unilaterally delay completion once contracts have been exchanged — there may be financial penalties for doing so. However, if the property has significant defects that make it unsafe or uninhabitable, your solicitor may be able to negotiate a delay or arrange for a retention (a sum held back from the purchase price until issues are resolved). For minor snagging issues, the standard approach is to complete as planned and then report the defects to the developer’s after-sales team for resolution under the defect liability period. Your solicitor will advise on the best course of action based on the specific issues found.
Protecting Your Investment from Day One
Snagging is one of the most important steps you’ll take as a new build buyer, yet it’s one that many first-time buyers overlook or underestimate. By understanding what snagging involves, knowing what defects to look for, and being aware of your legal rights, you’re in a strong position to ensure your new home is finished to the standard you’re paying for.
Whether you choose to hire a professional snagging inspector or carry out a DIY inspection, the most important thing is that you do it. Don’t assume that because a home is brand new, it’ll be perfect. Take the time to check every room, every surface, and every fitting. Document everything with photographs. And don’t be shy about reporting issues to the developer — they expect snagging reports and have teams dedicated to resolving them.
Remember, you have a two-year defect liability period during which the developer must fix any issues that fall below acceptable standards, plus a 10-year structural warranty for major defects. These protections are there for your benefit — make sure you use them.
As you prepare for completion day, make sure you’re also ready for the practical side of moving into your first new build. And if you’re still in the earlier stages of your purchase, our guides on the reservation process and understanding your mortgage offer will help you navigate each step with confidence. Your new build home is a significant investment — snagging ensures it’s the high-quality home you deserve.