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Neither NHBC Buildmark nor LABC Warranty is universally better. Both commonly provide a two-year defects or builder-responsibility period followed by eight years of insurance, but the policy issued for a particular home decides what is actually covered. Before exchange, compare the certificate, policy booklet and endorsements—not just the provider name. The decisive points are whether deposit protection is included, how a defect or structural damage is defined, the applicable excess or minimum claim value, section limits, exclusions, the named insurer and the claims route.
This guide explains the practical differences, the questions to put to the developer or conveyancer, and what to do when a problem appears. Product information was checked against the providers’ published documents in November 2026; your property’s certificate remains authoritative.
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At a glance
| Name | Best for | Key spec | Checked |
|---|---|---|---|
| NHBC Buildmark | Buyers whose plot has Buildmark and who want the standard NHBC two-year resolution route plus later insurance | Usually two years of builder responsibility, then eight years of insurance; eligible pre-completion insolvency and deposit protection; headline maximums up to £1 million for new builds and £500,000 for conversions | November 2026 |
| LABC New Home Warranty | Buyers whose certificate includes the LABC sections and optional extensions they need | Typically two-year Defects Insurance Period plus eight-year Structural Insurance Period; deposit cover optional; headline maximums of £1 million for new builds and £500,000 for conversions | November 2026 |
Prices checked November 2026.
What is the real difference between NHBC Buildmark and LABC Warranty?
The headline timetable is similar, but the insurance contract is not interchangeable. NHBC presents Buildmark as a three-stage package: eligible protection before completion, a two-year builder warranty supported by NHBC’s resolution service, and insurance from years three to ten for qualifying damage linked to failure to meet NHBC requirements. LABC describes a Defects Insurance Period followed by a Structural Insurance Period, with sections and the claims process dependent on the policy and underwriter.
That means a provider-level ranking can mislead. Two homes on the same development could have different endorsements, limits or optional sections, and a later claim can fail because the policy’s damage threshold, causation test, exclusion or notification rule is not met. Compare the documents for the address you are buying.
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How do the two warranty timelines work?
In both products, the early period is normally about getting the builder to correct qualifying defects. The later period is insurance for specified damage, not a promise to repair every fault for ten years.
| Comparison point | NHBC Buildmark | LABC New Home Warranty | Verify on the certificate |
|---|---|---|---|
| Initial period | Usually two years. The builder is responsible for correcting qualifying failures, with NHBC resolution support and a guarantee of the builder’s obligations. | Typically two years for homes for sale. LABC says the period can vary and may be one year for social housing. | Start and end dates, the definition of a defect and the reporting process. |
| Later period | Usually years three to ten, covering qualifying damage to specified parts caused by failure to meet NHBC requirements. | Generally an eight-year Structural Insurance Period after the defects period, subject to the particular scheme and underwriter. | Covered building elements, damage threshold, causation wording, exclusions and notification deadline. |
| Before completion | Buildmark describes eligible protection against builder insolvency, including deposit protection for qualifying first owners. | Deposit cover is shown as optional on the new-homes-for-sale summary. | Whether deposit cover is expressly included, who is protected, eligible payments and limits. |
| Headline financial maximum | Up to £1 million for new builds and £500,000 for conversions on the product page; higher limits may be available on referral. | Publishes the same headline amounts for its described product, subject to terms and conditions. | Per-home and per-section limits, indexation, excess or minimum claim value and endorsements. |
| Additional benefits | Alternative accommodation and storage may be available, subject to the policy. | Product information lists additional costs and fees, alternative accommodation, removal and storage, and other stated extensions. | Whether the extension applies to your claim and which costs are reasonable and covered. |
| Claims route | Builder and NHBC resolution service in the first two years; an insurance claim for qualifying damage in years three to ten. | Route varies by policy and underwriter; the certificate and policy identify the correct administrator. | Contact details, evidence requirements and deadlines. |
These are summaries, not promises of payment. A section limit can be lower than the headline maximum, and an excess or minimum claim value can remove a seemingly valid but small claim.
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What does NHBC Buildmark cover?
NHBC’s Buildmark description is aimed at newly built or newly converted homes for private sale. It normally protects a first owner from exchange to the end of the policy, often ten years from the certificate start date. The exact start date is not automatically the completion date, so use the certificate rather than assuming every home follows the same calendar.
Before completion: insolvency and deposit protection
For eligible first owners, Buildmark can protect certain payments if the builder becomes insolvent before completion. Eligibility, covered payments and limits are policy-specific. Ask for written confirmation that the protection is on your plot; do not infer inclusion from the fact that the development is registered with NHBC.
Years one and two: builder responsibility and resolution
During the first two years, tell the builder promptly and follow its defects procedure. NHBC says its resolution service may assist where the builder does not fulfil its obligations. Keep a dated schedule of defects, photographs, correspondence and access appointments. The service is not a substitute for reading the policy definition of a qualifying failure.
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Years three to ten: insurance for qualifying damage
After the initial period, Buildmark responds to qualifying damage to specified parts of the home where the required link to non-compliance with NHBC requirements is established. A workmanship fault or defect that has not caused the policy-defined damage may not satisfy the later-period coverage test. The NHBC years-three-to-ten guidance and the issued policy explain the trigger.
The 2024 Buildmark insurance product information document flags restrictions including a minimum claim value, financial limits and exclusions. Thresholds and wording can change between policy versions, so do not copy a figure from an older document into a current purchase decision.
What does LABC New Home Warranty cover?
LABC’s new-homes-for-sale summary describes a two-year Defects Insurance Period and an eight-year Structural Insurance Period. It advertises a maximum of £1 million for a new build and £500,000 for a conversion, subject to the policy. It also lists mechanical and electrical inherent defects for five years from completion, contaminated land, additional costs and fees, alternative accommodation, and debris removal as included benefits in the described product.
Those inclusions are not a substitute for the certificate. LABC states that cover sections and the claims route can differ by policy and underwriter. Deposit cover is shown as optional, so check that the relevant section is printed on your schedule and that its conditions match your transaction.
During the defects period
The developer, builder or housing provider should normally be your first contact. Send a clear written description, dates, photographs and a reasonable opportunity to inspect. If the builder does not resolve a qualifying issue, use the escalation method in your policy rather than sending the same complaint to an assumed insurer.
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During the structural insurance period
Later cover is for defined structural defects and associated damage, not cosmetic snagging or ordinary maintenance. The LABC structural warranty guidance explains the distinction in general terms, while the certificate identifies the underwriter whose wording controls the claim.
Is deposit protection the deciding factor?
It can be, particularly before completion, but it is not automatically included in every LABC arrangement and it is subject to conditions even where Buildmark provides it. Confirm who is protected, which deposits or other payments qualify, the maximum payable amount, the dates of protection and the evidence required if the builder fails.
Ask your conveyancer to record the answer in writing. A marketing statement that a development has a “10-year warranty” does not prove that deposit protection is part of your individual policy.
What is not insured under either type of warranty?
Neither product is an all-purpose repair plan or a replacement for buildings and contents insurance. The cited summaries and insurance documents identify common limitations such as cosmetic snagging that does not affect structural stability or weather tightness, lack of maintenance, wear and tear, alterations, known issues and certain external damage. The exact exclusion and its causation test come from your policy.
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- Maintenance: blocked gutters, neglected sealant or deterioration that ordinary upkeep would prevent is generally not a warranty event.
- Alterations: extensions, removed walls, replacement installations or other owner changes can affect cover and may be excluded.
- Pre-existing or disclosed issues: a known problem, survey finding or accepted variation may not be insured later.
- Ordinary wear and tear: ageing and use are different from a qualifying construction failure.
Read the policy’s definitions as carefully as its exclusions. A claim may be declined because the defect does not cause the specified damage, even when the defect itself is obvious.
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How should a buyer compare the actual documents?
Request the documents before exchange and compare them line by line. The provider logo is the least useful part of the pack; the schedule and endorsements determine the risk you are accepting.
- Obtain the Certificate of Insurance, full policy booklet and endorsements. Ask the developer, conveyancer or warranty administrator for the version that applies to your plot and phase.
- Check the dates. Record the certificate start date, completion date, defects-period end date and insurance-period expiry date. Do not assume “ten years” means ten years from the day you collect the keys.
- Confirm deposit cover. Identify whether it is included, who can claim, which payments qualify and the financial limit.
- Define the first-period defect. Note the builder’s response obligations, notification method, escalation route and any time limits.
- Map later-period cover. List the covered structural or building elements, the required resulting damage and any requirement to show non-compliance with a technical standard.
- Record limits and thresholds. Write down each section limit, continuous-structure limit, excess, minimum claim value, indexation rule and any referral requirement for a higher limit.
- Check extensions. Confirm whether mechanical and electrical inherent defects, contaminated land, alternative accommodation, storage, removal or additional fees are included for this home.
- Read exclusions and endorsements. Pay particular attention to known defects, maintenance, alterations, external damage, cosmetic items and unusual site conditions.
- Identify the insurer, underwriter and administrator. Save the correct telephone number, portal address and postal details from the certificate.
- Ask about notification deadlines. Some policies require prompt notice even while the builder is investigating. A late notification can complicate a claim.
A surveyor or conveyancer can help explain wording, but only the issued policy can confirm cover. Keep the documents with your purchase file and pass them to a future owner if you sell.
How do you make a claim or report a defect?
Start with the route for the period in which the problem occurs. Reporting a first-two-year snag as a later insurance claim, or sending a structural claim to the builder without notifying the required administrator, can delay resolution.
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- Notify the builder in writing, describing each issue, its location, when it appeared and any resulting damage.
- Attach dated photographs, inspection reports and a log of previous visits.
- Allow reasonable access and record the builder’s proposed remedy and completion date.
- If the builder does not meet its obligations, follow the NHBC resolution process described in the first-two-years guidance.
NHBC: years three to ten
- Check that the issue concerns a covered part and that the policy’s required damage—not merely a defect—is present.
- Use NHBC’s claims instructions and notify the correct channel promptly.
- Supply the certificate number, chronology, photographs, expert evidence where requested and details of any emergency mitigation.
- Keep invoices and proof of reasonable temporary costs; alternative accommodation or storage is only available where the policy conditions are met.
LABC: use the policy’s named route
- During the defects period, contact the developer, builder or housing provider first, using the method in your policy.
- For a later structural issue, confirm the underwriter and administrator on the certificate.
- LABC’s homeowner guidance directs policyholders who believe an issue is covered to its Claim Notification Portal; use the route and evidence requirements stated for your policy.
- Submit a factual chronology, photographs, reports, invoices and details of steps taken to prevent further damage.
- Continue reasonable maintenance and do not carry out permanent alterations before inspection unless emergency safety work is necessary and documented.
For either provider, emergency action to prevent injury or major damage should come first. Photograph the condition before work, keep receipts, and notify the administrator as soon as practicable.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which warranty is better for common buyer situations?
The answer changes with the property and the risk you are trying to transfer.
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| Your situation | What matters most | Practical conclusion |
|---|---|---|
| You are paying a substantial deposit before completion | Whether eligible deposit protection is included and its limit | Buildmark may have an advantage if its certificate confirms protection; an LABC policy can be comparable only when deposit cover is expressly included. |
| You are mainly concerned about major structural damage after year two | Covered elements, damage threshold, causation wording, limits and exclusions | Compare the issued sections, not the eight-year headline. Either provider can be suitable if the wording and limits meet your risk. |
| You want cover for specified mechanical or electrical defects | Whether the five-year extension appears on the LABC certificate and what equipment is defined | Check LABC’s schedule and conditions; do not assume the product summary applies unchanged to your home. |
| You expect a straightforward defects process | Builder responsiveness, named contacts and escalation steps | Read the first-period procedure. NHBC’s resolution service is a defined feature, while LABC’s route depends on the policy and underwriter. |
| The home is a conversion rather than a new build | Conversion limits and covered construction elements | Check the £500,000 headline maximum and all conversion-specific endorsements with either provider. |
Does the provider’s size or reputation prove better protection?
No comparable, dated claims-success rate, average payout or customer-satisfaction statistic is supplied for both products in the cited official material. NHBC says Buildmark protects around 1.2 million homes in the UK, but the figure is not a comparative measure of claim outcomes. Provider scale should not replace checking your policy’s wording, limits and route.
What should you ask before exchange?
- Can I have the final certificate and policy booklet for this exact plot and phase?
- Who is the insurer or underwriter, and who administers claims?
- What are the precise start and expiry dates?
- Is deposit protection included, and what payments and limits apply?
- What must happen for a later-period defect to become insured damage?
- What are the minimum claim value, excess and section-specific limits?
- Are alternative accommodation, storage, removal, debris and professional fees covered for this claim type?
- Are there endorsements for contaminated land, mechanical and electrical systems, conversions or unusual ground conditions?
- Which defects are already known, accepted or excluded?
- What portal, email or telephone route must I use, and how quickly must I notify a problem?
Bottom line: how should you choose?
Choose the policy that gives your home the stronger, clearer protection after you compare the actual documents. Buildmark’s standard structure and NHBC resolution service can be valuable, especially where eligible deposit protection is confirmed. LABC can be the better fit where its certificate includes the optional sections, limits and extensions you need, but the underwriter and schedule must be checked carefully.
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Frequently Asked Questions
Does a new-build warranty replace buildings insurance?
No. The warranty addresses defined construction defects or damage under its own conditions. Arrange separate buildings and contents insurance for risks such as fire, escape of water, theft and other household events outside the warranty.
Can I claim for snagging after the two-year period?
A snag that remains cosmetic or does not produce the policy-defined damage may not be insured later. Report defects during the initial period and check whether the later wording requires physical damage to a specified structural element.
Does the warranty transfer automatically when the home is sold?
Transfer rules depend on the certificate and policy. Check the policy’s assignment procedure and give the buyer the certificate, endorsements and claim history rather than assuming the cover follows the title without paperwork.
What if the builder has disappeared before fixing defects?
Use the escalation or resolution route stated for the first period and notify the warranty administrator promptly. Insolvency or builder failure does not automatically make every defect an insurance claim; eligibility and the policy’s definitions still apply.
