Is theft of materials covered on a self-build site?

Materials on site cover pays for building materials that are stolen or damaged on your site, usually subject to security conditions and an excess.

Last reviewed 3 sources

Quick answer

What is covered
Materials you supply for the build, once they are on the site or in transit to it, as listed in the policy.
Common conditions
Security requirements, such as locked storage for certain items, and a theft excess.
Not covered
Anything the wording excludes, such as unfixed metal left out in the open.
What to keep
Delivery dockets and photos, so you can prove what was there and what it was worth.

How it works in Ireland

Materials are a common loss on a house site: copper pipe, cable, tools and timber are easy to take and easy to sell. One published self-build wording insures “Free Materials”, meaning materials you supply for the project whose value is not part of the contractor’s final price. They are covered as part of the works while on the contract site or in transit to or from it, including loading and unloading.

The same wording has conditions. Theft of unfixed non-ferrous metals, such as copper and brass, is excluded unless an authorised person is actually on site or the property is in a securely locked hut, container or building. Another condition says that if work stops for three consecutive months, cover on the works is suspended unless the insurer agrees in writing to continue, and you must take practical steps to protect the property meanwhile.

Different insurers set different conditions, so read the exclusions and conditions pages, not just the summary. Ask what counts as secure storage, whether it must be locked on the evening of delivery, and whether materials stored off site at a supplier are covered.

Keep delivery dockets and invoices, and photograph what is on site at the end of each stage. After a theft you report it to the Gardaí and to your insurer, and the paperwork shows what you lost and what it cost.

A common mistake

Leaving a first-fix delivery of copper unlocked over a weekend. The loss is common, and the policy may exclude it. Order metal for the day it is fitted, or lock it away, and ask the insurer to put its security requirements in writing before the first delivery.

The full guide

This page defines the term. The guide below covers what to do about it.

Insuring a site you own before you build

If you own a site, you are responsible for what happens on it. Who you owe a duty to, what cover exists, and how it hands over to build and home insurance.

6 min read

Sources

Last reviewed 23 October 2026. Rules and figures change, so confirm anything important with the source before you rely on it.

  1. Self Build Insurance, V082024, Definitions: Free Materials, p9Optis Insurance
  2. Self Build Insurance, V082024, General Exclusions 18, Non Ferrous Metal, p17Optis Insurance
  3. Insurance guidance for consumersCCPC

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