Insurance for an extension or renovation of a home you own
Tell your home insurer before work starts, find out whether the existing house is covered by the works policy, and what an empty house does to your cover.
What three Irish providers say on their own pages about self-build cover, and the questions that make two quotes comparable before you choose.
Self-build insurance in Ireland is mostly sold by brokers (firms that arrange cover with insurers for you) and specialist schemes, so the name on the quote is not always the name of the insurer. Below is what several providers state on their own sites and nothing more, followed by the questions that make two quotes comparable. For what the covers are and who needs them, read self-build insurance in Ireland. It is not a ranking, a recommendation or a complete list, and it gives no prices, because none of the provider material in Sources published one.
Each entry is taken from the provider page linked in its row, and provider pages change, so check the current version and your quote.
| Provider | What it states |
|---|---|
| Arachas, source | Self-build insurance for new builds, renovations, conversions, owner-occupied works and extensions. Lists employers’ liability with a €13,000,000 limit, public liability with a €2,600,000 limit and own and hired-in plant at €5,000 (increased on request). Additional covers include buildings under construction to an agreed valuation, all-risks cover to building and materials, temporary dwellings and caravans (€30,000), plant (€30,000), household contents (€5,000) and employees’ tools (€2,500). Says it will update you on your quote within 24 hours and that Self Build Protect, which has provided self-build insurance since 2003, is now part of Arachas. |
| Self-Build Zone, source | Says it has provided specialist insurance to self-builders in Ireland and the UK since 2003. Its About Us text does not describe policy types, period or limits. |
| GMIB, source | Says standard cover includes property damage, employers’ liability, public liability and legal protection, with a flexible period of cover, a €13,000,000 employers’ liability limit and a €2,600,000 public and products liability limit. Contractors all risks covers storms, fires and damage, and plant and equipment can be added. Says it compares a panel of insurers. Its article is dated November 2016, so confirm every figure. |
| Optis, source | Publishes a self-build policy wording (the full policy text) rather than a sales page. Read it to see what a specialist policy actually promises, such as transit and off-site storage cover and conditions. Which brokers sell it is for them to say. |
Two things stand out. Arachas gives plant cover as both €5,000 and €30,000 in different places, which is a reason to ask for the limit in your own quote rather than rely on a web page. And the GMIB and Arachas limits for employers’ and public liability match, which may mean the same underlying policy or may not. Ask each broker which insurer it uses.
Your lender is a separate question. One bank’s self-build mortgage steps require a building insurance policy before drawdown (the release of your loan in stages) and allow you to choose it from any provider. See what insurance a lender requires for the checks lenders make.
A cheaper quote is only cheaper if it buys the same thing. Give every provider the same project details, then check each of these in writing.
Put the answers in a table with one column per provider. A blank cell means you have not got the answer yet, not that the answer is “no”. If a provider will not put an answer in writing, treat that as a reason to look at the next one rather than assume the best.
Answer every underwriting question truthfully, because the duty of disclosure means leaving out a fact a quote asks for can put a later claim at risk. Your broker or the quote form will say which facts are asked for, and you should re-check them at renewal or if the project changes, for example if the start date slips or the scope grows.
The CCPC’s insurance guidance for consumers explains your rights when buying cover. Before you pay, check that the firm is authorised in Ireland: the Central Bank of Ireland keeps a public register of authorised insurance intermediaries on its website. The firm’s quote should say which insurer provides the policy.
Brokers and specialist schemes. Arachas (which says Self Build Protect is now part of it), Self-Build Zone and GMIB each describe self-build cover on their own sites. Optis publishes a self-build policy wording. This is not a complete list or a ranking.
Usually, yes. Arachas describes a typical policy as having three covers built in, public liability, employers' liability and property. GMIB lists property damage, employers' liability, public liability and legal protection. Confirm which are in the quote you are offered.
They may not be for the same thing. Check the sum insured, period of cover, excess, employers' liability, cover for your own materials and any exclusions. Compare them line by line.
One lender's published self-build mortgage steps allow you to choose the building insurance policy and mortgage protection policy from any provider. Check your own lender's terms before you buy.
None of the provider material listed under Sources states this. Ask each broker whether it charges a fee on top of the premium and what it will cost to change or cancel the policy.
Last reviewed 24 October 2026. Rules and figures change, so confirm anything important with the source before you rely on it.
This guide is general information about self-building in Ireland, not financial, legal or insurance advice. Get advice that fits your own situation before you make decisions.