Buildmark is our product for newly-built or newly-converted homes for private sale.

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What is Buildmark?

Buildmark is designed for NHBC registered builders and the owners of newly-built, newly-converted or one off high-value homes constructed by NHBC registered builders. Buildmark provides pre-completion deposit protection; a two year builder warranty period backed by the NHBC resolution service and guarantee; and then an eight year insurance policy for physical damage to the home caused by a failure to build to the NHBC requirements.

Policy features

Our policies are subject to terms and conditions and exclusions. Please see the full policy documents for more information.

  • cover for builder insolvency before completion (cover for first owner only). This is typically 10% of the original purchase price, up to a maximum of £100,000
  • new build warranty and insurance cover up to £1m and up to £500,000 for conversions. Higher limits may be available on referral
  • warranty and insurance cover for new build continuous structures up to £25m and up to £5m for conversions
  • cover for alternative accommodation and storage costs
  • a minimum claim value (MCV) - if the cost of a claim exceeds the MCV, we will do the work or pay the cost in full and the homeowner will not have to make any contribution
  • cover against contaminated land

Download policy documents

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Buildmark IPID

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Buildmark policy booklet


If you require a previous policy booklet, please contact the customer services team at

Our insurance products and policy wordings are reviewed regularly. We communicate a summary of the main changes at least annually to ensure all our builders and developers are kept up to date with our product offerings, and advise which policy version is applicable at the time you pay for a product. If you need to discuss anything or request to receive communications from us, please email

What to do next...

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Request a guide price

We can provide you with a guide price for warranty and other products and services.

Get an estimate
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Register as an NHBC Builder

You need to be registered with us to offer our warranty and insurance on your new homes.

Join us now
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Register your new site

If you are an NHBC registered builder and want to register your new site with us, please use the portal or complete a SNIN form.

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Discuss your next project

Get in touch to talk about our warranty and insurance cover as well as our other products and services.

Contact us