A Guide to Home Renovation Insurance in NSW

A renovation can change the way your home works for years to come. It can also expose your property to risks that a standard home insurance policy was never designed to cover. This guide to home renovation insurance explains what Sydney and NSW homeowners should check before demolition starts, trades arrive, or a builder takes possession of the site.

Insurance should not be treated as a last-minute contract item. It is part of sound project planning, alongside a clear scope, compliant approvals, realistic allowances and a properly documented building contract. Knowing who insures what gives you a stronger position if weather damage, theft, accidental damage or a serious builder issue affects the work.

Why ordinary home insurance may not be enough

Most home and contents policies are designed for an occupied, completed dwelling. A major extension, structural alteration or full renovation changes the risk profile considerably. Walls may be removed, roofing opened, services disconnected and valuable materials stored on site. If you move out during construction, that can also affect the terms of your existing policy.

Do not assume your insurer will continue to provide the same cover while works are underway. Some policies require you to advise the insurer before renovations over a certain value begin. Others may limit cover for an unoccupied home, exclude damage connected with building works, or decline a claim if the property’s condition has materially changed without disclosure.

Contact your insurer before signing a building contract. Explain the planned scope, approximate value, expected start and finish dates, whether you will remain living at the property, and whether any part of the home will be vacant. Ask for the response in writing and read any endorsement or revised policy schedule carefully.

The main types of home renovation insurance

There is no single policy that covers every person and every risk on a renovation project. Cover is usually shared between the homeowner and the builder, with each policy responding to different events. The right arrangement depends on the contract, the project value, site conditions and the insurer’s requirements.

Contract works insurance

Contract works insurance is generally arranged by the builder for the work under construction. It can cover physical loss of or damage to the building works and materials during the construction period, subject to the policy terms. For example, it may respond if a storm damages a partially completed extension, a fire affects new framing, or stored materials are stolen from site.

The detail matters. Confirm who is named as an insured party, the insured value, the period of cover and any excess that may apply. The policy should reflect the full reinstatement value of the works, not simply the builder’s progress claim at a particular stage.

Homeowners should also ask whether existing structures are included. A new kitchen installation might be covered while the rest of the older home is not, unless the policy specifically extends to existing property. This is particularly relevant where work involves roof alterations, structural connections or excavation close to the original dwelling.

Public liability insurance

Public liability insurance is a core protection for builders and contractors. It is intended to cover legal liability if the contractor’s work or activities cause injury to another person or damage to third-party property. A neighbouring property damaged by an incident on site is one example where this cover may be relevant.

Request a current certificate of currency from your builder before work begins. It should show the business name, insurer, policy period and level of cover. A professional builder should be able to provide this as part of the pre-construction documentation, rather than leaving homeowners to chase paperwork after the site has been established.

Public liability does not replace your own home insurance or contract works cover. It also will not automatically resolve every defect, delay or disagreement. It protects against particular liabilities, so the contract, scope of works and quality controls remain just as important.

Home Building Compensation Fund cover in NSW

For residential building work in NSW valued at more than $20,000, builders generally need to obtain cover under the Home Building Compensation Fund, often referred to as HBCF, before taking a deposit or starting work. This is a key consumer protection for eligible residential building projects.

HBCF is not general construction insurance. It is designed as a last-resort scheme. It may assist where a builder cannot complete work or fix defective work because they have died, disappeared, become insolvent, or had their licence suspended due to non-compliance with licence requirements.

Your builder should provide the HBCF certificate of insurance before you pay a deposit. Check that the homeowner name, property address, builder details and contract value are correct. Keep the certificate with your signed contract, approved plans, specifications, variations and payment records. These documents can be critical if an issue arises later.

Your building and contents insurance

Your existing insurer may continue to cover parts of the original house, your contents and certain events, but only if it has been informed of the works and has agreed to the arrangement. There can be gaps around accidental damage caused by building activity, water entering an opened roof, unoccupied periods, or valuables left in accessible areas.

Before construction starts, clarify whether you need to increase the building sum insured, remove contents from work zones, or arrange separate cover for temporary accommodation. If you are undertaking a large extension or full-home renovation, your post-project replacement cost may also be higher than it was before work began. Update the policy again when the renovation is complete.

A practical guide to home renovation insurance checks

A well-managed renovation makes insurance responsibilities clear before the first trade attends site. The goal is not to collect paperwork for its own sake. It is to make sure the policy arrangements match the actual work being performed.

Start by reviewing the building contract. It should identify who is responsible for insuring the works, what type of cover is required, when the risk transfers, and what happens after practical completion. If the wording is unclear, ask for clarification before signing. Verbal assurances are not a substitute for contract documents and certificates of currency.

Then speak to your own insurer. Tell them about structural work, the expected construction period, vacancy arrangements, demolition, excavation, retaining walls, pools, heritage elements or any other unusual aspect of the project. These factors can affect underwriting and exclusions.

Before accepting a quote, ask the builder to provide evidence of current public liability insurance and, where required, the HBCF certificate. It is also sensible to confirm that key subcontractors are appropriately licensed and insured. A fully managed builder should coordinate trades, site supervision and compliance, but homeowners should still understand the documentation being relied upon.

Finally, create a project file. Keep dated photos of the property before work begins, plans, selections, approvals, certificates, invoices, progress claims, written instructions and records of variations. If a claim or dispute occurs, a clear record of the home’s pre-existing condition and the agreed scope can save significant time and uncertainty.

Common gaps that catch homeowners out

The most expensive insurance problems often begin with an assumption. One common example is believing that a builder’s insurance automatically covers the whole property and all personal belongings. Another is assuming a policy will pay for delays, design changes, cost overruns or poor decisions that are not insured events.

Water damage deserves particular attention. During roof works or wall openings, rain can cause damage quickly. Ask how the builder will secure the site and protect exposed areas at the end of each day. Good site management reduces the likelihood of a claim and helps protect the home while works are in progress.

Neighbouring properties also need careful consideration. Excavation, boundary work, drainage changes and structural alterations can create risks beyond your fence line. Depending on the project, you may need condition reports, engineering advice, approvals or agreements before work begins. Insurance is valuable, but prevention, compliant design and experienced construction management are the first line of protection.

Owner-builder projects require additional care. If you directly engage trades, purchase materials or coordinate works yourself, the responsibility for insurance and site safety can shift substantially. The apparent savings can be outweighed by the time, compliance obligations and exposure to gaps between contractors. Seek professional advice before taking on those responsibilities.

Questions to ask before construction begins

Ask your builder who holds contract works insurance and whether it includes the existing home. Confirm the policy period, sum insured and excess. Request a current public liability certificate and, for eligible NSW work over $20,000, ensure you receive the HBCF certificate before paying a deposit.

Ask your own insurer whether your building and contents policy remains valid during the renovation, especially if the property will be vacant or partly uninhabitable. Also ask whether the completed extension, new bathroom, kitchen upgrade or other improvements will require an increase to your building sum insured once the project is handed over.

A dependable builder will welcome these questions. At H.E.A.R, clear documentation, coordinated trades and transparent pre-construction planning are central to reducing avoidable risk before a project moves on site.

The best time to resolve an insurance gap is while plans are still being reviewed, not after a storm, accident or site incident. Put the right cover and records in place early, then you can focus on the more rewarding part of the process: creating a home that is built properly, managed carefully and ready for the way your family lives.