Buying a brand new home should feel straightforward. You are moving into a property that has just been built, the fixtures and fittings are unused, and the finish should be fresh from day one. Even so, buyers still need to know what protection they have if defects appear after completion.
That is where the warranty of new build homes comes in.
New build homes are usually sold with a 10-year warranty from a recognised provider. In simple terms, this gives buyers a route to follow if certain defects appear after they move in. The cover is usually split into stages. During the first two years, the builder is normally responsible for putting right defects that fall within the warranty terms. After that, the cover usually moves into an insurance-backed period for certain structural defects. The exact wording depends on the provider and the policy for the home you buy, so it is always worth reading the paperwork carefully and asking your conveyancer to explain anything that is unclear.
This article is for general information only and does not constitute legal, financial, insurance or property advice. Always check your policy documents and take independent professional advice based on your own circumstances.
What is a new build warranty?
A new build warranty is a policy designed to protect buyers of newly built or newly converted homes against certain defects linked to the construction of the property. It is often described as a 10-year structural warranty, but that phrase only tells part of the story.
In practice, the warranty of new build homes often includes more than one type of protection. Depending on the provider and the policy, it may include:
- Deposit protection before the home is finished
- A builder warranty period after completion
- Insurance cover for certain structural defects
- Limited cover for related costs such as alternative accommodation, where the policy allows it
This is one reason buyers should avoid treating all warranties as identical. A home may be advertised as having a 10-year warranty, but the policy wording, financial limits, exclusions and claims process still need to be checked.
The best-known provider in the market is NHBC Buildmark, though recognised alternatives include LABC Warranty and Premier Guarantee. Lenders may accept different providers, but each lender makes its own decision. That means your solicitor should check whether the warranty on the property is acceptable for your mortgage, rather than assuming every policy is treated in the same way.
Why the warranty of new build homes is so useful
Most buyers only look closely at their warranty if a defect appears. By then, they are already trying to work out whether to call the builder, the warranty provider, their insurer or their conveyancer. A proper understanding at the start makes the whole process easier.
A recognised new build warranty helps buyers in a few different ways:
- It gives a defined route for dealing with defects after completion
- It can support mortgage lending on the property
- It is generally designed to pass to later owners if you sell within the 10-year term, though you should always check the policy wording
- It gives buyers a clearer picture of what protection they actually have
This is where the warranty of new build homes becomes more than a sales feature. It sits within the legal and practical framework around the purchase. Your solicitor should check the policy as part of conveyancing, and your lender will usually want to know that acceptable cover is in place.
For a buyer, the real value is clarity. If a problem appears in month six, the route is usually different from the route in year six. Knowing that in advance saves time and stress.
What is NHBC Buildmark?
NHBC Buildmark is one of the best-known new home warranty products in the UK. It is a 10-year warranty and insurance policy for homes registered with NHBC, and the cover is split into stages: protection before completion, a two-year builder warranty period after completion, and then an insurance-backed period for the remaining years of the policy.
This staged approach is a good example of how the warranty of new build homes works in practice. Buyers often think of the whole 10 years as one single block of cover, but the cover in the early period is not the same as the cover in the later period.
That split also helps buyers understand who to contact. In the first two years, it is usually the builder. Later on, if the issue falls within the structural section of the policy, it is usually the warranty provider or insurer.
Before completion: deposit protection and builder insolvency
One of the least understood parts of the warranty of new build homes is the cover that may apply before the buyer even moves in. With some policies, protection may start from exchange of contracts to legal completion. This can include cover for loss of deposit or extra costs if the builder becomes insolvent before the home is finished, subject to the policy terms and financial limits.
This matters because new build purchases often involve a gap between exchange and completion. During that gap, the buyer has committed money but may not yet have the home. Pre-completion cover is there to reduce that risk.
Before you exchange, ask your solicitor to confirm:
- Whether the policy includes deposit protection
- When the cover starts
- What the financial limit is
- Whether there are any exclusions or endorsements on your plot
The first two years: builder responsibility period
For most buyers, the first two years are the stage where they will notice and report the majority of problems. This period is usually known as the builder warranty period or defects period. During this stage, the builder is usually responsible for rectifying problems that arise from failing to meet the warranty provider’s technical requirements. This is also the period where most snagging issues, workmanship defects and fitting problems are picked up.
This is the stage where buyers often raise:
- Poor plaster finish
- Doors or windows that do not fit properly
- Damaged or badly installed kitchen units
- Tiling defects
- Poor finishing in bathrooms
- Faulty internal joinery
- Defects in fitted storage
- Other snagging items linked to workmanship or materials
The practical point here is simple: do not sit on problems. Report them early, do it in writing, keep photos, and save every reply. If something is minor, you still want a record. If it turns into a bigger issue later, your paper trail will help.
There is also a wider consumer protection layer around many new homes. Depending on the developer and when the home was reserved, this may be covered by either the Consumer Code for Home Builders or the New Homes Quality Code. Both schemes are designed to improve the buying process and after-sales experience for new home buyers for up to two years after legal completion. The builder should tell the buyer which code applies to the purchase.
Part 1: the structural warranty in years 3 to 10
After the first two years, the builder period usually ends and the policy moves into the longer insurance-backed stage. This is the part buyers usually mean when they talk about the structural warranty.
This stage is usually narrower than the first two years. It is less about finish and minor snagging, and more about physical damage caused by a covered defect in protected parts of the building. What is included can vary between providers and policy types, so buyers should always check the individual policy booklet.
Depending on the policy, that may include issues affecting:
- Foundations
- Load-bearing walls
- Structural floors
- Roofs
- Staircases
- Some weatherproofing elements
- Certain underground drains serving the home, where the policy includes them
This does not mean every crack, stain or leak will qualify. The issue needs to fit the policy wording, and some policies also apply a minimum claim value during the later insurance period.
For buyers, this later stage can be misunderstood. People often assume a 10-year warranty means every defect in every room is covered for the full term. That is rarely how these policies work. The longer period is aimed at more serious problems affecting the structure or envelope of the home, rather than day-to-day finishing issues.
Part 2: fixtures, fittings and workmanship in the first two years
Buyers often ask whether kitchens, bathrooms and other fitted items are covered under the warranty of new build homes. The answer is usually yes during the first two years, if the issue is linked to poor workmanship or a failure to meet the warranty provider’s standards. This is usually not something that sits in the later structural period.
Examples often include:
- Fitted kitchen cupboards and worktops
- Bathroom suites
- Internal doors
- Built-in wardrobes
- Tiling
- Skirting and internal joinery
- Poor finishing to fitted elements
That is why the first two years matter so much. It is the period when buyers need to be observant, organised and clear about what they are reporting. A useful rule is this: if it looks like a build quality or installation issue, raise it early. If it affects the structure of the building or causes physical damage later on, that may move into the later insurance-backed section instead.
What the warranty of new build homes does not usually cover
This is where buyers need to be careful. A new build warranty is useful, but it is not designed to cover every issue a homeowner might face.
In practical terms, a new build warranty will not usually cover:
- Day-to-day wear over time
- Poor upkeep
- Accidental damage
- Theft
- Storm or flood damage that should fall under home insurance
- Faults covered by separate manufacturer warranties
- Alterations, loft conversions or extensions carried out after completion
- Minor cosmetic issues that do not fall within the policy terms
This is where buyers sometimes confuse the warranty of new build homes with home insurance, snagging or appliance guarantees. They overlap in the buyer’s mind, but not in the policy wording. The fact that something has gone wrong does not automatically mean it falls under the warranty. It may sit with the builder, the warranty provider, the manufacturer, the freeholder’s insurance policy, or your own home insurance, depending on the type of issue and when it appears.
Snagging, settling in and knowing the difference
Most new homes go through a settling-in period. Materials dry out, heating levels change, and minor movement can show up in places such as plaster, sealant or decoration. That does not mean all visible issues are acceptable. It means buyers need to separate ordinary settling from poor workmanship and from more serious defects.
A sensible approach is to keep a running snagging list from the day you move in. Take photos, use dates, and send items to the builder in writing. If you are not sure whether something is normal settling or a defect, report it anyway and ask for a written response.
It can help to think in three groups:
- Issues that are clearly poor workmanship and should be raised straight away
- Issues that may be normal settling but should still be watched
- Issues that look more serious and may need urgent attention
How to use your warranty if something goes wrong
The best first step is to work out which stage of the warranty you are in.
If you are within the first two years:
- Contact the builder first
- Report defects in writing
- Include photos and dates
- Allow access for inspection and repair
- Keep records of all communication
If you are in years 3 to 10:
- Check the policy wording
- Contact the warranty provider or insurer directly
- Make sure the issue falls within the later structural section
- Gather supporting evidence before you submit the claim
Good records help at every stage. Keep:
- Your policy certificate
- The full policy booklet
- Completion paperwork
- Dated photos and videos
- Emails and letters
- Notes of phone calls
- Inspection reports, if you have them
Do you still need home insurance?
Yes. A new build warranty does not replace home insurance. It covers certain defects linked to construction. Buildings insurance and contents insurance cover different risks.
A simple way to split it is:
- The warranty of new build homes covers certain defects linked to how the home was built
- Buildings insurance covers the structure against insured risks such as fire, storm and flood
- Contents insurance covers personal belongings inside the home
If you own a leasehold flat, the lease usually sets out who arranges buildings insurance. In many cases, the landlord or freeholder arranges a block policy for the building and the leaseholder contributes through the service charge, but you should always check the lease and conveyancing papers. Contents insurance for your personal belongings is normally separate.
This is one of the most common points of confusion for buyers. If a pipe bursts because of a sudden incident, that may be an insurance issue. If there is damage because something within the construction was defective and the policy wording covers it, that may be a warranty issue. The answer depends on the facts, timing and policy terms.
Other providers that offer warranty cover for new build homes
NHBC is one of the best-known names, but it is not the only provider in the market. Recognised providers include NHBC Buildmark, LABC Warranty, Premier Guarantee, and other schemes accepted by some lenders.
Lender acceptance can vary. That is why your solicitor should check the provider against your lender’s requirements rather than assuming all schemes are treated in exactly the same way.
This is also why buyers should not focus only on the brand name of the provider. They should also look at:
- What the first two years cover
- What the later structural period covers
- Whether there is deposit protection
- Whether there is a claim threshold
- How the claims process works
- Whether the cover passes to a later owner if the home is sold
What to check before you exchange contracts
This is the stage where buyers can save themselves a lot of confusion later on. Before you exchange on a new build home, ask your solicitor to confirm:
- Who the warranty provider is
- When the policy starts
- Whether there is deposit protection before completion
- What the builder period covers
- What the later structural period covers
- Whether there is a minimum claim value
- Whether there are endorsements or exclusions on your plot
- How claims are made
- Whether the warranty passes to a later owner if you sell
This is also the stage to ask practical questions about handover and after-sales service. Who do you contact in the first few weeks after moving in? How are snagging items recorded? How quickly are non-urgent issues usually inspected?
Conclusion
The warranty of new build homes is one of the main protections that comes with buying a brand new property. In most cases, it runs for 10 years, but it is not one flat block of identical cover. It is usually split into stages, with the builder handling defects in the first two years and an insurance-backed policy covering certain structural defects after that. The exact details depend on the provider and the policy wording.
For buyers, the best approach is to understand the policy before exchange, keep good records after completion, report defects quickly, and remember that a new build warranty does not replace home insurance. A clear understanding of the warranty of new build homes can save time, reduce stress and help you know who to contact when something goes wrong. It also puts you in a stronger position before you buy, because you can ask better questions, read the paperwork more confidently and avoid assumptions about what is and is not covered.
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