Build to Rent Warranty

Builders Warranty

10 Year Builders Warranty for New Builds, Conversions & Renovations

A Builders Warranty (also known as a Structural Warranty or Building Guarantee) is a 10-year latent defects insurance policy designed to protect homeowners from structural issues in new or converted properties. It provides long-term protection from day one — with no need to prove professional negligence, unlike an architect’s certificate.

Whether you’re building a new home, undertaking a major renovation or extension, or converting a commercial building into residential units, this flexible warranty is built to suit the project’s structure and scale. It’s particularly well-suited to one-off builds and for high value custom built homes. It can also be used where a lender, receiver or investor requires extra assurance.

This policy covers structural damage or the risk of structural failure due to defective design, workmanship or materials — giving homeowners and lenders peace of mind with a straightforward and secure form of protection.

What’s Included with the Builders Warranty?

How it works

Why Builders Choose This Warranty

Covers one-off homes, conversions, extensions, or multi-million-pound builds. Ideal when standard home warranties aren’t suitable — including investment-only builds or projects managed by receivers.

Full structural cover from day one with no builder’s defect liability. Great for bespoke builds or where the builder isn’t involved long-term. Higher policy limits available where needed.

No need to prove negligence. This is a direct, robust insurance policy that notes lender interest and includes successor in title — making it a more secure and futureproof option.

Flexible Cover, Built Around Your Project

Some builds don’t tick the usual boxes — and that’s exactly where the Builders Warranty fits best. Whether you’re converting a commercial space, building a one-off luxury home, or developing a multi-unit investment, this structural warranty gives you the long-term protection you need without the rigid requirements of a typical new home warranty.

It also works well in more complex ownership or funding situations. If a lender is involved, a receiver is appointed, or the property changes hands post-completion, your cover adapts. The policy automatically notes lender interest and includes successor in title protection as standard.

Real-World Applications

The Builders Warranty has been designed with real-world flexibility in mind. Typical use cases include:

High-value custom homes
Conversions and refurbishments
Renovation of existing buildings
Mixed-use developments
Projects under receivership
Investment-only or rental builds
Homes with high reinstatement values

It’s a solution for when standard warranties fall short — with none of the red tape that slows things down.

Ready to Secure Your Project with a Protek Warranty?

Our flexible, lender-approved structural warranties help keep your build moving — backed by expert support from day one.