Insurance Backed Guarantees

Strengthen your long-term asset protection.

Engineer and Architect surveying building site

Insurance Backed Guarantees explained

An Insurance Backed Guarantee (IBG) is a specialized policy that underwrites the original installer’s written warranty.

For Housing Associations and developers, an IBG is a critical layer of financial security. Unlike a standard contractor warranty, which becomes worthless if the company enters insolvency, an IBG transfers the liability to an A-Rated insurer. This ensures that valid claims for defective workmanship – on assets ranging from roofing and glazing to external wall insulation – are rectified at no additional cost to the asset owner, typically for a period of 10 years from completion.

What does an IBG actually cover?

An IBG is a “Policy of Last Resort”. It does not replace the contractor’s primary obligation to fix defects while they are still in business. Instead, it acts as a dormant safety net that only triggers under specific conditions.

The policy mirrors the terms of the original written guarantee provided by the installer. If the original guarantee covered materials and labor for 10 years, the IBG will cover the reasonable cost of rectifying works to that same standard if the contractor suffers an “Insured Event” – most commonly, insolvency or bankruptcy.

Core Coverage Scope:

Workmanship Defects

Errors in installation.

(e.g., a window that leaks due to poor fitting).

Material Failures

Breakdown of supplied goods.

(subject to manufacturer warranty alignment).

Rectification Costs

The insurer pays for an approved third-party contractor to fix the issue up to the original contract value.

Deposit Protection

(Optional but common)

Covers the loss of upfront deposits if the contractor goes bankrupt before work starts.

Secure A-Rated Protection for Your Next Project

Don't let contractor insolvency jeopardize your asset or funding compliance. Whether you are a Housing Association requiring specific grant-compliant wording (ECO4/SHDF) or a private developer needing mortgage-approved cover, our team accesses the whole of the UK market to secure A-Rated capacity. We provide rapid turnaround times on quotes, ensuring your paperwork is ready before you step on site.

Insolvency Cover vs. Insurance Backed Guarantees (IBGs)

While both policies protect you if a contractor goes out of business, they cover entirely different stages of your project’s lifecycle. The easiest way to tell them apart is to look at the timeline: Insolvency Cover protects the active build, while an IBG protects the finished result.

Here is a quick breakdown of how they compare:

Insolvency Cover Insurance Backed Guarantee (IBG)
When it protects you During the construction phase. After the project is completed.
What triggers a claim? The contractor ceases trading before the job is finished. A fault appears in the finished work, but the original contractor has ceased trading and cannot honor their written warranty.
What does it pay for? Protecting your lost deposit and covering the extra costs to hire a new builder to finish the site. Hiring a new tradesperson to repair or replace the defective workmanship or faulty materials.
The ultimate benefit Ensuring the project actually gets built. Giving you long-term peace of mind in your finished space.

Common use cases for an Insurance Backed Guarantee

Important Distinction: An IBG is not a “comprehensive maintenance plan.” It does not cover wear and tear, storm damage, or issues caused by lack of maintenance (e.g., blocked gutters causing leaks).

It strictly mirrors the contractor’s original promise to fix their mistakes.

A close up of a door handle on a window

Double Glazing

Mandatory for FENSA and CERTASS registration.

Low angle view of a modern apartment building exterior with flat roof

Roofing

Essential for 10-25 year flat roof warranties.

A scenic view of woodworking tools and wooden frame at a construction site.

Timber

A standard mortgage lender requirement for older properties.

Technician carrying a solar panel on a rooftop for installation, promoting renewable energy.

Renewables

Technologies that are MCS compliant such as Solar PV and Heat Pumps.

A suburban house surrounded by floodwaters after heavy rain, showing impact of natural disaster.

Common exclusions and limitations

To ensure your housing stock is genuinely protected, Risk Managers must understand what an IBG does not cover:

Speak to an Insurance Backed Guarantee specialist

A standard contractor warranty is tied to the trading status of the company. To separate your long-term security from contractor solvency risk, we recommend transitioning to an Insurance Backed Guarantee.

We can guide you through the specific coverage options available for your development scale.

Frequently Asked Questions

Our dedicated IBG specialists have compiled the questions most commonly fielded regarding IBGs and related topics.

No. An Insurance Backed Guarantee (IBG) acts as a direct backup to a specific contractor's warranty and only kicks in if that tradesperson goes out of business. In contrast, Latent Defects Insurance (LDI) provides long-term structural protection for up to 10 or 12 years , protecting the asset itself, which means you can make a claim regardless of whether the original builder is stilltrading.

Typically, the contractor purchases the policy on your behalf as part of their service package. The premium is a one-off payment included in your quote. You should receive the policy certificate directly from the insurer or broker within a few weeks of completion and final payment.

The policy period matches the underlying contractor's guarantee. The industry standard is 10 years, though specific trades (like damp proofing) may require 20 years, and electrical works often carry shorter terms (2-5 years).

Retrospective IBGs are possible but rare and expensive. They typically require a new professional survey to verify the quality of work. It is best practice to agree on an IBG with your contractor before work commences.

No. An IBG is a "Policy of Last Resort." If the builder is still trading but refuses to fix a defect, this is a contractual dispute. You must resolve this through consumer rights avenues (e.g., Trading Standards or Small Claims Court). The IBG only triggers if the builder has "Ceased Trading" (insolvency/death/retirement).

News and insights

26 January 2026
What Insolvency Cover Really Means for Social Housing Projects
Contractor insolvency is one of the most significant — and often underestimated — risks facing social housing delivery. With long construction programmes, complex supply chains, and increasing financial pressure across the...
17 December 2025
Building Safety Act: Ultimate Guide for New-Build Social Housing
The landscape of residential development has changed.With the introduction of the Building Safety Act, Housing Associations are now operating in a delivery environment where accountability is clearer, scrutiny is higher,...
15 October 2025
The Importance of RICS Surveyors in Construction Projects
Why Choosing the Right Surveyor Matters Buying or investing in property is one of the biggest financial commitments most people make. That’s why expert advice is crucial. Enter the RICS surveyor – a property professional...
20 June 2025
Performance Bonds: What They Are, Why You Might Need One
When you’re managing a construction project, there’s already enough complexity—finances, timelines, planning, and compliance. So when a lender, client, or local authority asks for a performance bond, what exactly...
11 June 2025
UK Planning Delays: Turn Idle Time into Risk-Ready Opportunity
The UK construction industry continues to feel the strain of planning delays. With local authority backlogs, changing regulations, and extended consultation periods, developers across the country are finding themselves stuck...
05 June 2025
Performance Bonds and IBGs: Fast, Reliable Protection for Today’s Projects
In today’s fast-moving construction environment, risk management isn’t just a formality—it’s a necessity. With tighter margins, growing regulation, and high stakeholder expectations, contractors and developers...
28 May 2025
Why Major Developers Choose LDI Cover They Can Trust
In today’s construction landscape, confidence is currency. For developers navigating complex builds and tight timelines, protecting long-term investment is critical—not just for themselves, but for their funders and...
17 April 2025
Top 5 Things to Check Before Moving Into a New Home
Moving into a new home is an exciting milestone—but before settling in, it’s important to ensure the property is safe, functional, and ready for comfortable living. Taking the time to inspect a few key areas can help you...
12 March 2025
Navigating 2025’s Building Regulations: Are You FHS and ‘Building Safety Act’ Ready?
The regulatory landscape is changing rapidly. With 2025 bringing new regulations focused on sustainability, safety and planning, developers face both fresh challenges and exciting opportunities. The move towards greener,...
05 November 2024
Skill Shortages in Construction: Labour’s Strategy to Boost Apprenticeships and Training
The Labour government’s budget has introduced a strong focus on reducing skill shortages in the construction industry through increased funding for apprenticeships and vocational training. As construction shifts towards modern,...
Scroll to Top