Structural Warranty
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Structural Warranty Provider
If you are developing property in the UK, arranging the right structural warranty is critical. It protects your project, satisfies lender requirements and safeguards future owners.
Buildsafe is a leading independent broker of structural warranty insurance. We compare 100+ providers, allowing you to secure competitive terms without navigating the market yourself.
In many cases, clients save up to 30% versus going direct. All policies we arrange are accepted by high street banks and recognised by the Council of Mortgage Lenders where required.
Whether you are delivering new builds, undertaking conversions, completing a self-build or constructing commercial developments, we ensure your structural warranty is suitable and aligned with your funding strategy.
What is a structural warranty?
A structural warranty is a 10 year structural warranty insurance policy that protects against major structural defects in a completed building. It is also known as latent defects insurance.
The policy is designed to respond when hidden defects in design, workmanship or materials cause physical damage to the structural elements of a property after practical completion. These defects are referred to as latent because they were not apparent at the time the building was finished.
Structural warranty insurance applies to residential and commercial property and is typically required by lenders on all new build properties under 10 years old.
Without a structural warranty, mortgage lenders may refuse to lend on a property and resale value can be reduced. For developers and investors, it plays a central role in funding, exit planning and long-term risk management.
Do I need a structural warranty?
In most development scenarios, yes.
You will normally require a structural warranty if you are:
- Delivering new builds for sale
- Constructing units for private rent or refinance
- Building affordable housing
- Undertaking major structural conversion
- Completing a self-build with future sale potential
- Developing commercial developments
Most high street lenders require an accepted 10 year structural warranty before approving mortgages on properties less than 10 years old. Without it, buyers may struggle to secure finance.
Even where finance is not immediately required, many developers choose structural warranty insurance to enhance saleability and demonstrate construction quality assurance.
For very small projects, an Architects Certificate may be considered. However lender acceptance can be more limited compared to a full structural warranty.
What does a 10 year structural warranty cover?
A 10 year structural warranty is divided into two clear periods of responsibility:
Years 1–2: developer liability period
During the first two years following completion, the developer or builder remains responsible for addressing defects. If issues arise due to workmanship or materials, they must rectify them.
The warranty provider monitors compliance with technical standards during construction but does not replace the builder’s obligations during this initial period.
Years 3–10: insurer liability period
From year three onwards, responsibility transfers to the insurer. If major structural damage occurs due to a latent defect, the insurer responds in accordance with the policy wording.
While cover varies slightly between structural warranty providers, protection typically includes core structural components such as:
- Foundations
- Load bearing walls
- Structural frame
- Floors
- Roof structure
- Structural waterproofing
- Drainage serving the structure
The policy is not a maintenance contract. It does not cover general wear and tear, minor shrinkage cracking or cosmetic defects. Its purpose is to address significant structural failure resulting from hidden construction defects.
We review policy wording carefully and explain any conditions before placement.
How does a structural warranty differ from buildings insurance?
This is one of the most common misunderstandings.
Buildings insurance covers insured events such as fire flood storm damage subsidence caused by external factors or escape of water.
Structural warranty insurance covers inherent defects within the construction itself. It responds when the building fails due to hidden issues in design workmanship or materials.
The two policies operate independently and serve different risk purposes. Buildings insurance does not replace the need for a structural warranty where lenders require one.
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Buildsafe are the UK’s leading specialist broker of Building Warranties and Construction Insurance. Get a free, no obligation quote from us online today!
Summary of structural defects warranties we can secure
Buildsafe supports a wide range of development types. Each project requires a structural warranty structured to match funding method construction type and exit strategy.
New Homes Warranty
A 10-year insurance policy that protects the builder or owners against major structural damage
Social Housing Warranty
A 12 years’ Structural Warranty cover suitable for regeneration projects and other mixed-use projects
Completed Housing Warranty
Provides cover on completed properties which do not already have a warranty in place.
Commercial Warranty
Insurance that protects owners and developers of commercial sites against structural defects.
Conversion Warranty
Warranties for conversions and refurbishments protect against latent defects that may occur within the structure of a newly converted project.
How much does a structural warranty cost in the UK?
Structural warranty cost is usually calculated as a percentage of Gross Development Value rather than a flat rate.
The premium depends on:
- Total GDV
- Number of units
- Build type and construction method
- Developer track record
- Location and ground conditions
- Procurement route
As a broad guide, premiums fall within a percentage range of GDV but exact pricing can only be confirmed once full technical details are reviewed.
For an early-stage estimate, use our warranty cost calculator.
To obtain a formal structural warranty quote tailored to your project, simply Get a Quote.
Which structural warranty providers does Buildsafe work with?
We compare 100+ providers across the UK market.
Rather than being tied to one insurer, Buildsafe operates independently. One application allows us to approach appropriate structural warranty providers and present structured comparisons.
This ensures:
- Competitive pricing
- Alignment with lender requirements
- Suitable technical standards
- Clear visibility of policy differences
Because the market changes frequently, independent comparison is critical. Provider appetite varies depending on sector build method location and developer experience.
What happens if a structural warranty provider goes bust?
Structural warranty insurance is underwritten by regulated insurers. In the unlikely event that a provider becomes insolvent, policies are generally protected by the Financial Services Compensation Scheme subject to eligibility.
When recommending structural warranty providers, we consider underwriting strength longevity in the market and stability.
Can I get a structural warranty after construction is complete?
Yes, in certain circumstances.
If you did not arrange cover before works commenced, a retrospective building warranty may be available.
These policies require detailed technical assessment of completed works including documentation and site inspection. Acceptance is not automatic and premiums can differ from standard pre-construction policies.
This is why we strongly advise arranging structural warranty insurance before works begin wherever possible.
How Buildsafe works
Buildsafe has supported over 47,000 properties and protected more than £16bn in GDV across residential commercial and mixed-use schemes.
Our expertise covers projects from £200,000 to £100,000,000 in value.
Our approach is structured and commercially focused.
- You complete one application via our website
- We assess your scheme including GDV build method and contractor structure
- We approach appropriate structural warranty providers
- We present multiple quotations with clear commentary
- We manage inspections and technical audit through to completion
Why choose Buildsafe for your structural warranty?
- Compare 100+ providers (inc. LABC, NHBC, Premier Guarantee)
- Save up to 30% versus going direct in many cases
- Accepted by high street banks
- Recognised by the Council of Mortgage Lenders
- 47,000+ properties covered
- £16bn GDV protected
- Experience across new builds conversions self-build and commercial schemes
We provide independent advice, reliable cover and competitive pricing without promoting one insurer over another.
Get your structural warranty quote
If you require structural warranty insurance for an upcoming development or completed scheme, speak to our specialist team today.
We will compare the market, explain your options clearly and secure the right structural warranty for your project.
