A Dulux warranty on a high-rise repaint isn’t a blanket promise that the coating won’t fail. It’s a manufacturer guarantee with specific conditions attached, and one of those conditions is maintenance. Skip it, and the warranty can be voided regardless of how well the paint was applied on day one.

What the Warranty Actually Covers

Dulux’s commercial warranty on a product like Weathershield Gloss covers blistering, flaking and peeling for a defined period, 15 years on new brickwork or blockwork when applied according to their written specification. That’s a manufacturer warranty on the product itself, separate from the workmanship warranty your painting contractor provides on their own labour and surface preparation. Confusing the two is common, and it matters, because a manufacturer warranty only holds if the product was applied exactly the way Dulux specifies, and stays maintained exactly the way Dulux specifies afterward.

That correct-application condition is why the contractor doing the work matters as much as the product itself. Our high-rise painting Brisbane team applies to Dulux’s written specification on every job specifically so the warranty isn’t compromised before the building even gets to the maintenance stage.

That second part is where most building owners come unstuck. The warranty isn’t a one-off check at application. It’s an ongoing condition.

The Maintenance Clause Most Owners Never Read

Dulux’s own durability warranty documentation states it directly: an appropriate, systematic building maintenance programme has to be instituted and recorded to periodically clean the surface of accumulated deposits and pollutants. Not a suggestion. A condition. If a claim is ever made against the warranty, Dulux can ask for evidence that maintenance actually happened, not just that it was planned.

That means a building with a 15-year Weathershield warranty sitting on file, that hasn’t had its facade washed in three or four years, has a warranty that’s substantially weaker than the certificate suggests. If the coating fails and Dulux asks for cleaning records that don’t exist, the claim has real grounds to be refused.

Why Skipping the Wash Actually Causes Failure

This isn’t just a paperwork technicality. The maintenance requirement exists because dirt, salt and biological growth sitting on a coating accelerates exactly the kind of failure the warranty is meant to cover. Pollutants trap moisture against the film. Salt residue on a Brisbane high-rise close to the river or bay works into hairline imperfections in the coating and speeds up the breakdown from underneath. Mould and algae growth, which Dulux’s own preparation guidance treats as a defect requiring fungicidal wash before recoating, doesn’t just sit on top of a clean facade, it works into a contaminated one and spreads faster.

A coating that’s never washed isn’t failing despite the warranty being in place. It’s failing in exactly the way the maintenance clause was written to prevent.

What a Compliant Maintenance Cycle Looks Like

Dulux’s own commercial preparation standards specify high-pressure water jetting, 1,500 psi, as compulsory ahead of any recoat, with a dedicated fungicidal wash where mould, lichen or algae are present. That’s the same standard a building should be holding itself to between repaints, not just before one.

Most Brisbane high-rises have no water connection at balcony level, which is why a proper wash on a tall building can only be done from the roof down rather than from a platform working up from the ground. We cover this in more detail on our Brisbane high-rise facade cleaning page, since it’s the same access problem that makes rope access the practical method for cleaning as well as painting.

A wash every 12 to 18 months is a reasonable baseline for most Brisbane buildings, more often for anything close to the river or bay carrying heavier salt exposure. Keeping dated records of when each wash happened is what actually protects the warranty if a claim is ever needed.

What to Check on Your Own Building

Find the actual warranty documentation, not just the invoice from the repaint. Confirm what product was used, what the stated warranty period is, and what maintenance conditions are listed. If there’s no record of facade washing since the repaint, that’s a gap worth closing now rather than discovering it when a coating defect shows up and the warranty claim depends on proof that doesn’t exist.

A warranty certificate filed away and forgotten isn’t protection. The protection is in the maintenance record sitting alongside it.