J3 Advisory Structural Warranty

Self-Build Warranty

Self-Build Warranty Insurance

While a Professional Consultants Certificate is often seen as a popular alternative, there are a number of considerations to be taken into account before opting for a non-insurance-based solution that may not actually protect self-builders should insurance be called upon.

J3 Advisory advises and arranges appropriate structural warranties for self-build projects. The warranty gives the beneficiary of the policy peace of mind that should there be any structural issues that arise after practical completion, they have first party insurance in place. Additionally, should they wish to refinance or sell the property during the 10-year period after practical completion, the self-build warranty will offer the bank/lenders involved sufficient comfort to deploy funds.

In most cases, it is a requirement of the policy for the self-builder to live in the property for 12 months after practical completion before selling – Otherwise they may incur additional premium costs, should they wish to sell before that point in time.

If you have a project you wish to discuss, call us on 020 3096 0718 or fill in our enquiry form online.

In addition to self build warranties, J3 Advisory can also supports property professionals looking to place new build warranties, conversion warranties, commercial latent defects insurance, retrospective warranties and social housing warranties.

The benefits of our Self-Build Warranty include:

  • 10-year building warranty cover from practical completion
  • First party insurance
  • Two-year defect period
  • UK Finance approval which is recognised and accepted by mortgage lenders

Why choose J3 Advisory for your self build warranty?


A-rated insurers

All of our policies are underwritten by A-rated insurers, providing our clients total peace of mind.


Approved by all major lenders

The leading banks and building societies widely accept our self build warranty, helping potential buyers obtain the mortgage they need to purchase a home.


Full market comparison

We scour the market to find the most suitable building warranty for each project.

Other Residential Building Warranty Solutions

New Build Warranty

Mixed Use Warranty

Latent Defects

Retrospective Warranty

Social Housing Warranty

Have a project you wish to discuss?