How Often Should You Seal Concrete in Canberra?

Concrete sealing is one of the lowest-cost, highest-value things a homeowner can do to protect a driveway, patio or path — but “how often” is a question that depends on a few genuinely different factors, not a single fixed number.

Why Sealing Matters in the First Place

Unsealed concrete is porous. Left exposed, it absorbs water, oil, and other staining agents directly into the surface. In Canberra specifically, that absorbed moisture becomes a bigger problem over winter, when freeze-thaw cycles can force water trapped in the concrete to expand and contract, gradually damaging the surface from the inside out. A good seal creates a protective barrier that keeps moisture from getting in that deep in the first place.

What Determines How Often You Need to Reseal

• Sun and weather exposure — a driveway with full sun exposure will generally break down its sealer faster than a shaded path.
• Traffic — a daily-use driveway wears differently to a rarely-used side path.
• The type of sealer used — different sealers have different expected lifespans before they need reapplication.
• The original finish — decorative finishes like stamped or exposed aggregate concrete often benefit from more consistent resealing to protect both colour and texture, not just the surface itself.

The General Rule of Thumb

As a general guide, most Canberra driveways and outdoor concrete areas benefit from resealing every few years, though high-traffic or high-exposure surfaces may need it sooner. Rather than working to a strict calendar, it’s worth keeping an eye on the visible signs below.

Signs It’s Time to Reseal

• Water no longer beads on the surface and instead soaks straight in.
• The surface looks dull, faded, or patchy compared to when it was first sealed.
• Increased staining from things that would normally wipe off easily.

Sealing Is Cheaper Than the Alternative

Compared to the cost of a full driveway replacement, periodic resealing is a small, predictable expense — and it’s one of the main reasons a well-maintained concrete driveway can reach the 25-30 year lifespan that’s realistic under Canberra conditions. We see this play out regularly on driveways across Tuggeranong and similar established suburbs.

Frequently Asked Questions