There is no such thing as one universal resealing interval that would work for all floors, and without a visual inspection of the surface, you won’t find an exact answer. Two neighbouring houses that were newly built and finished within the same week on the same street in Melbourne might be placed on two totally different intervals. The reason behind that is the finish type, floor use, and care after delivery.
The first thing worth sorting out is what is actually underfoot.
Mechanically polished concrete involves treating the concrete with chemical hardener and grinding it with increasingly finer diamond tools until the concrete itself is the finished product. No covering material is used over it. It is the concrete itself which has the finish, so protection is given through impregnating sealers or guards which work inside the concrete. Refreshing that treatment is a periodic job, not a frequent one.
A grind and seal floor is built the other way around. The slab is ground down and then coated, and it is from the coating where the gloss and protection come from. Since the coating serves as the wear layer, it takes all the marks and the wear, so it will eventually need to be recoated.
Decorative overlays and grind and seal finishes are often described as polished concrete, though only a mechanical polish genuinely is. If you are unsure which you have, your installation paperwork or a quick look by someone who works with these systems will settle it.
Foot traffic does most of the work. A quiet residential hallway and a cafe floor age at very different rates, and so do a home office and a workshop where grit gets tracked in daily. Trolley wheels, pets, chair castors and vehicle traffic all count.
Exposure matters too. Spills left to sit, particularly acidic or strongly coloured liquids, can etch or stain a surface well before general wear becomes an issue. Cleaning habits either extend the life of the finish or shorten it, as does the condition of the slab and the products chosen at installation, since sealers and guards behave differently underfoot.
Wear announces itself in the walkways first. Look for signs of dulling along actual traffic routes, inconsistent shine between lanes of traffic and pieces of furniture, wetness on the flooring rather than the floor itself, and marks that won’t come off through regular cleaning. In the case of a sealed floor, scratches that show up to catch the light mean the sealant is wearing down.
None of this means the floor is failing. Caught early, most of it is straightforward to address, which is the argument for having polished concrete floors assessed before the surface itself starts taking damage.
The routine Urban Concrete Floors gives customers in its Care and Maintenance Guide is deliberately simple. Use quality mats inside and outside external doorways, large enough to take both grit and moisture. Dry mop regularly, then wash with a low pH cleaner or a capful of white vinegar as traffic demands. Clean spills straight away, especially red wine and cordial. Remove shoes where practical, and cover the floor if other trades are still working around it.
Grit is the real culprit. Left underfoot it behaves like sandpaper, and keeping it off the surface does more for the finish than any product will.
Because maintenance is largely set at the point the finish is chosen, that decision is worth making with the whole life of the floor in view. Urban Concrete Floors works across residential, commercial and industrial projects and keeps most of its range on display at its polished concrete Melbourne showroom in Thomastown, which makes comparing finishes easier than comparing photographs. If your floors are already polished concrete, but you do not know how your floors compare, get your floors evaluated rather than following a schedule from the internet.
Yes. Polished concrete undergoes mechanical polishing and is sealed with an impregnating sealer/guard that penetrates the surface without creating the film that a coated floor needs.
2. Can I reseal polished concrete myself?
Home products rarely match what was originally applied, and mismatched sealers can leave patchy sheen or trap contaminants. Cleaning is yours to manage. Resealing is best left to the installer.
3. Does resealing fix scratches and dull patches?
Not usually. Sealer protects the surface rather than rebuilding it. Deeper scratches and worn traffic lanes generally need mechanical work first, with the sealer applied afterwards to finish the repair.
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