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Postsaver Extends Post-Replacement Guarantee to Cover UC3 Treated Timber

September 24, 2026

Postsaver has announced a significant extension to its post-replacement guarantee, which is now valid when its Rot Protectors are applied to UC3 treated timber.

The change marks an important development in Postsaver’s post replacement product guarantee. Previously, the guarantee was only valid where the product had been applied to UC4 treated timber.

While Postsaver continues to advocate the use of ground-contact (UC4) treated timber wherever appropriate, the company has extended its guarantee to UC3 following the exceptional performance of its product in ongoing field trials.

The trials, which are continuing to monitor treated timber protected by Postsaver rot protectors in real-world conditions, have demonstrated that the product continues to perform exceptionally well when applied to timber treated to the UC3 specification.

Tony Young, Director of Sales for Postsaver said: “This is a substantial change to our previous product guarantee, and one we have made based on the performance evidence we are seeing from our ongoing field trials. We continue to recommend UC4 treated timber for applications involving ground contact, but the performance of Postsaver on UC3 treated timber has given us the confidence to extend our post-replacement guarantee.

“For our customers, this means greater flexibility and additional reassurance when using our rot protectors to protect timber posts against ground-line decay.”

The extension provides customers with greater choice while maintaining Postsaver’s recommendation that UC4 treated timber remains the preferred specification for ground-contact applications.

Postsaver rot protectors are designed to protect timber posts at one of the most vulnerable points, the ground line, helping to maximise the service life of timber fencing, agricultural and landscaping structures.

The updated guarantee is effective immediately and applies to new Postsaver installations using UC3 treated timber, subject to the full terms and conditions of the Postsaver guarantee.

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Postsaver Post Rot Protection

Installing post rot protectors is a smart investment that saves time, money, and hassle by guaranteeing posts against rot. Independently tested and proven, with millions sold worldwide.
Learn About Post Rot Protection
Postsaver manufactures and supplies guaranteed post rot protection that is proven to extend the life of wooden fence and gate posts. Our patented rot protection is independently tested and proven in volume use since 1994.
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Postsaver uses long term independent test data on the effectiveness of barrier sleeves and wraps to reach all the conclusions given on this website (test data available on request). Based on this data, Postsaver believes longer life, maintenance of strength over time, improved safety and reliability, extended inspection periods and reduced maintenance requirements are reasonable claims. This is subject to Postsaver products being correctly applied as per our instructions and used on correctly preservative-treated (use class 3 or higher – use class 4 recommended) wooden fence posts that are free of decay at the time of rot protection application. The claims made, real or implied are not warranties. It is the responsibility of the user to evaluate and satisfy themselves that the performance of the product meets their specific safety, reliability, extended inspection, repair and any other performance or cost-benefit criteria before using Postsaver rot protectors.
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