Your Buildmark policy Your Buildmark policy

New homes for
private sale

Buildmark is our market-leading warranty and insurance product for new homes built for private sale

Why choose NHBC warranty and insurance for new homes for private sale?

Builders and developers choose to register with us each year because they value their association with the NHBC brand and so that they can offer our Buildmark warranty and insurance cover on any new homes they build. The benefits of working with us and our Buildmark cover include:

Cover from exchange of contracts

Buildmark provides buyer(s) with deposit protection from exchange of contracts as well as warranty and insurance cover for the home for up to 10 years after the legal completion date.

Cover from exchange of contracts

Association with the market-leading brand

We are the leading warranty and insurance provider for new homes in the UK. Our Buildmark product covers around 80% of new homes built in the UK. Builders value their association with us and our 80+ years' experience in helping to improve the construction standards of new homes.

Association with the market-leading brand

Expert technical support

Our building inspectors typically carry out over 900,000 on-site inspections at key build stages each year, supporting the industry in the delivery of high quality, new homes. The relationships our field-based inspectors have with builders, backed by our extensive in-house technical expertise and full customer service support, are highly valued.

Expert technical support

A one-stop shop for warranty, Building Control and consultancy services

For consistency, quality and efficiency many of our builders choose to work with us for Building Control as well as services such as health and safety consultancy, energy ratings and land quality endorsement. We are a unique source of information, data and support.

A one-stop shop for warranty, Building Control and consultancy services

Online services

Whether it’s managing sites via the NHBC Portal or comparing the performance of sites through My Reports, we have online services to support builders from pre-construction to after-sales.

Online services

What is Buildmark?

Buildmark is our warranty and insurance product for newly built or newly converted homes. It currently protects around 1.5 million homes in the UK.

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 Technical Requirements.


Deposit protection

Protection for purchaser's deposit between exchange of contracts and legal completion

Up to 10% of the original purchase price or £100,000, whichever is lower


Warranty and insurance

New build warranty and insurance cover up to £1m, up to £500,000 for conversions


Continuous structures

Warranty and insurance cover for new build continuous structures up to £25m and up to £5m for conversions


Cover period

Years 0-2 Builder warranty period and NHBC guarantee
Years 3-10 Buildmark insurance period

Policy also includes

  • Cover for alternative accommodation and storage costs
  • Minimum claim value* instead of an excess
  • Cover against contaminated land

The above applies to policies for plots registered with us from 1 October 2019. Please see the full Buildmark policy document below for all the conditions and exclusions that apply. Homes registered prior to 1 October 2019 may benefit from insurance protection for certain breaches of Building Regulations if NHBC Building Control Services Limited is appointed for and carries out building control for the property. If we have provided this cover, it will be clearly shown on the Buildmark insurance certificate, and a description of the cover included in the policy booklet. Please refer to your own policy documents for all the terms and conditions that apply to your home.

* The minimum claim value explained: We don’t require policyholders to pay the first part of any claim. Instead, we operate a minimum claim value (MCV) which means that if the cost of a valid claim exceeds the MCV we will do the work or pay the cost in full and the policyholder will not have to make any contribution. The MCV for plots registered from 1 April 2019 is £1,750 (increasing by £50 on 1 April in each subsequent year).

Buildmark policy document

To see all the terms and conditions, please see the current Buildmark policy document that applies to newly built or converted homes registered with us from 1 October 2019.

  Download PDF

Buildmark Policy Document

What to do next...

You need to be registered with NHBC to offer Buildmark warranty and cover for your new homes. If you’re not yet registered with us, please visit the NHBC registration section first. If you’re already registered with us, you can send us the details of your new site straight away.

Buildmark Policy Document

Frequently asked questions

Check out our list of frequently asked questions and answers.
If you can't find what you're looking for, please contact us.

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