Snagging Survey Cost for New Builds: Prices, What It Covers & Is It Worth It?

If you are selling a new build property, there is a good chance your buyer's surveyor will flag defects that you may not have noticed yourself. Paint blemishes, poorly hung doors, gaps in sealant, and uneven plastering are common in new builds — and they can become negotiation points that reduce your sale price or delay the transaction.

A snagging survey identifies these defects so you can get them fixed before they become a problem. This guide explains what a snagging survey costs, what it covers, when to get one, and whether it is worth the investment when you are preparing to sell. If you are looking at the full picture of selling costs, our guide to how much it costs to sell a house in 2026 covers every expense from start to finish.

What is a snagging survey?

A snagging survey is a detailed inspection of a new build property designed to identify defects, poor workmanship, and incomplete items. The term "snagging" refers to the process of finding and recording these issues — known as "snags" — so that the developer can be asked to rectify them.

Snagging surveys are carried out by independent inspectors who are not connected to the developer. They check the property against NHBC standards, building regulations, and the developer's own specification. The result is a written report listing every defect found, with photographs, descriptions, and references to the relevant standard or regulation that has not been met.

Snagging surveys are not the same as a homebuyer survey or building survey. Those are broader assessments of a property's condition and value. A snagging survey is specifically focused on construction quality and whether the developer has delivered what was promised.

How much does a snagging survey cost?

The cost of a professional snagging survey depends primarily on the size and type of property. Here is what you can expect to pay in 2026:

Some snagging companies charge a flat fee per property type, while others price based on the number of bedrooms, total floor area, or a combination of both. A few companies offer a re-inspection service for an additional £100 to £200 to check whether the developer has fixed the snags identified in the original report.

Compared to the overall cost of selling, a snagging survey is a relatively small expense. For context, our guide to the hidden costs of selling a house shows how the various fees and charges add up across a typical transaction.

What does a snagging survey cover?

A thorough snagging survey inspects every accessible part of the property. The inspector will typically check the following areas:

Internal checks

• Walls and ceilings: Cracks, uneven plaster, nail pops, paint defects, and scuff marks
• Doors and windows: Alignment, operation, locking mechanisms, seals, and draught proofing
• Kitchen: Worktop fitting, unit alignment, drawer operation, sealant around sinks, and appliance connections
• Bathrooms: Tiling, grouting, sealant, toilet fixing, shower operation, and drainage
• Flooring: Level, finish, skirting board gaps, and threshold strips
• Electrics: Socket and switch fitting, consumer unit labelling, and visible wiring
• Plumbing: Pipe connections, radiator operation, boiler controls, and visible leaks

External checks

• Brickwork and render: Mortar quality, brick damage, weep holes, and damp proof course visibility
• Roofing: Tile alignment, ridge tiles, lead flashing, and soffit/fascia fitting
• Guttering and drainage: Downpipe connections, gutter alignment, and ground-level drainage
• Driveways and paths: Surface finish, levels, and drainage falls
• Fencing and landscaping: Post stability, panel fitting, and turfing quality

The inspector will also check for fire stopping where accessible, loft insulation depth and installation quality, and any communal areas if the property is a flat. The resulting report typically lists anywhere from 30 to over 200 individual snags, depending on the property and the standard of construction.

When to get a snagging survey

Timing matters. You have two main windows for a snagging inspection:

Before legal completion (pre-completion snagging)

The ideal time is between the developer notifying you that the property is ready and the date of legal completion. During this window, the developer still holds the keys and has a financial incentive to fix problems before you complete the purchase. Under the New Homes Quality Code, registered developers must allow buyers a reasonable opportunity to carry out a pre-completion inspection.

If you are buying a new build with a view to selling it later, getting a pre-completion snagging survey creates a documented baseline of the property's condition at handover. This can be valuable if you need to pursue the developer for unresolved defects during the warranty period. For more on new build timelines, see our guide to conveyancing for new build properties.

After completion (post-completion snagging)

If you have already completed, you can still get a snagging survey at any point. However, it is best to arrange one as early as possible — ideally within the first few weeks of moving in. The sooner you report snags to the developer, the sooner they can be resolved, and the more time remains on your warranty period.

If you are preparing to sell a new build you already own, a snagging survey before listing helps you identify and fix issues that would otherwise appear on your buyer's survey. This is especially important if you are still within the NHBC two-year defects liability period, as the developer is obligated to carry out repairs at no cost to you.

DIY snagging vs professional snagging

You can inspect your new build yourself using a snagging checklist. Many buyers do this and successfully identify obvious cosmetic issues. However, there are important differences between a DIY approach and a professional inspection:

For sellers, a professional report is the better option. It provides documented evidence that you have taken steps to identify and address defects, which reassures buyers and their solicitors. A DIY checklist is fine as a starting point, but it is unlikely to carry weight during a sale.

The NHBC defects liability period

Most new build properties in England and Wales come with an NHBC Buildmark warranty, which provides cover in three stages:

1. Years 1-2: Defects insurance period. The developer must fix any defects that result from their failure to build to NHBC standards. This covers workmanship, materials, and design. You report issues directly to the developer, and they are obligated to carry out repairs.
2. Years 3-10: Structural insurance. NHBC provides insurance cover for major structural defects, such as subsidence, failure of load-bearing walls, or defective foundations. This does not cover cosmetic issues or wear-and-tear.
3. Pre-completion: Developer insolvency cover. If the developer becomes insolvent before completing your home, NHBC provides financial protection to help complete the build or recover your deposit.

The two-year defects liability period is the critical window for snagging. Any defects you report within this period must be addressed by the developer. After year two, only structural issues are covered, and these are handled by NHBC directly rather than the developer. If you are selling within the first two years, getting a snagging survey and having the developer fix issues before listing is strongly advisable.

If you are selling a new build specifically, our dedicated guide on selling a new build property covers the full process, including warranty transfers and developer obligations.

Common snags found in new build properties

Professional snagging inspectors report finding between 30 and 200+ defects on a typical new build. While many are cosmetic, some are more serious. The most common snags include:

• Paint and plaster defects: Uneven coats, runs, drips, missed areas, nail pops through plasterboard, and cracks at joints
• Poorly fitted doors: Doors that stick, do not latch properly, have uneven gaps, or are not square in their frames
• Sealant and grouting issues: Missing sealant around baths, showers, sinks, and worktops; cracked or incomplete grouting in tiled areas
• Window defects: Scratched glass, poor seals, mechanisms that do not operate smoothly, and missing restrictors
• External brickwork: Damaged bricks, poor mortar joints, missing or blocked weep holes, and cracks in render
• Drainage falls: Paths, driveways, and patios that slope towards the property rather than away from it, creating a flood risk
• Loft insulation: Insulation not laid to the required depth, gaps around pipes and hatches, or insulation blocking ventilation
• Fire stopping: Gaps in fire stopping around service penetrations, which is a building regulation requirement and a safety concern

A buyer's surveyor will pick up many of these issues during a homebuyer report or building survey. If they are found during the buyer's due diligence rather than being addressed beforehand, they become ammunition for price renegotiation or additional requests.

How snagging results affect resale

When selling a new build, unresolved snags can affect your sale in several ways:

• Price renegotiation: Buyers who discover defects through their survey may ask you to reduce the price or contribute towards repair costs. Even cosmetic issues can be used as leverage.
• Solicitor enquiries: Your buyer's solicitor may raise additional enquiries about the condition of the property, the status of the NHBC warranty, and whether any claims have been made. Having a snagging report and evidence of repairs simplifies this process.
• Buyer confidence: A property where snags have been identified and fixed demonstrates that the seller has been diligent. This can reassure buyers, particularly those who are wary of new build quality.
• Chain collapse: In a worst-case scenario, significant unresolved defects could cause the buyer to withdraw from the sale entirely. This is rare for cosmetic issues but possible where structural or safety defects are involved.

The cost of a snagging survey — £300 to £600 — is small compared to the potential cost of a price reduction or collapsed sale. For sellers, it is a form of insurance against surprises during the buyer's due diligence.

Choosing a snagging company

The snagging survey industry is unregulated, which means anyone can call themselves a snagging inspector. To ensure you get a thorough, professional service, look for the following:

1. Professional body membership. The Residential Property Surveyors Association (RPSA) is the main professional body for snagging inspectors. Members must hold relevant qualifications, carry professional indemnity insurance, and adhere to a code of conduct. Other recognised bodies include the Royal Institution of Chartered Surveyors (RICS).
2. Professional indemnity insurance. Any inspector you hire should carry professional indemnity insurance. This protects you if the inspector misses a significant defect that later causes you a financial loss.
3. Sample reports. Ask to see a sample report before booking. A good snagging report should include photographs of each defect, a description of the issue, the location within the property, and a reference to the relevant building regulation or NHBC standard.
4. Experience with your developer. Some snagging companies have extensive experience with specific developers and know their common construction issues. This can result in a more thorough inspection.
5. Re-inspection service. Look for companies that offer a follow-up inspection to verify whether the developer has fixed the reported snags. This is particularly valuable if you are planning to sell.

Avoid companies that guarantee a minimum number of snags or that advertise unrealistically low prices. A thorough inspection takes time, and an inspector who rushes through the property will miss defects that a diligent professional would catch.

Developer obligations and the New Homes Quality Code

Developers who build new homes have specific obligations when it comes to defects and snagging:

NHBC obligations

Developers registered with the NHBC must build to NHBC standards and fix any defects reported during the two-year defects liability period. If the developer fails to respond or refuses to carry out repairs, you can escalate the matter to NHBC's Resolution Service. NHBC will inspect the property and, if the defect falls within the warranty terms, direct the developer to carry out repairs or arrange them independently.

New Homes Quality Code

The New Homes Quality Code, introduced in 2022 and overseen by the New Homes Quality Board, sets out how developers should treat buyers. Key provisions relevant to snagging include:

• Developers must allow a reasonable pre-completion inspection
• Developers must have a clear process for reporting and resolving snags
• Developers must provide an after-sales service for a minimum of two years
• Buyers can refer unresolved complaints to the New Homes Ombudsman

All major housebuilders in England are now registered with the code. If your developer is registered and refuses to address legitimate snags, you have a formal complaints route through the ombudsman. This is a significant improvement on the previous situation where buyers had limited recourse beyond the NHBC warranty process.

Snagging and your property documents

When selling a new build, having organised records of snagging and repairs strengthens your position. Keep the following documents:

• The original snagging report from your professional inspection
• Correspondence with the developer about reported snags
• Confirmation from the developer that repairs have been completed
• Any re-inspection report confirming the quality of repairs
• Your NHBC Buildmark warranty certificate and policy documents

Your solicitor will need the NHBC warranty documentation as part of the sale process, and your buyer's solicitor is likely to ask about any defects or claims made under the warranty. For a full list of the paperwork you will need, see our guide on documents needed to sell a house.

Sources and further reading

• What Does Buildmark Cover? (NHBC)
• NHBC Standards (NHBC)
• The New Homes Quality Code (New Homes Quality Board)
• New Homes Ombudsman (New Homes Quality Board)
• Residential Property Surveyors Association (RPSA)
• Building Regulations Overview (GOV.UK)

Frequently asked questions