Dark streaks, green or black growth, slippery patches, oil marks and a dull, patchy look are the clearest signs a driveway needs washing. If it is slippery underfoot after rain, that is a safety reason to act sooner.
Dark streaks and patches
Black, grey or green streaks are usually mould, mildew or algae. They spread over time and make the surface look older and dirtier than it is.
Green slime and slipperiness
A slick or slimy surface, especially after rain, is a safety hazard. If you notice it feeling slippery underfoot, it is time to clean.
Stains from oil, rust and tannins
Oil drips, rust marks and leaf tannin stains build up in driveways and paths. Fresh stains clean more easily than old ones.
Dull, patchy colour
A faded, uneven look often means dirt and growth are covering the surface. A clean often restores the original colour.
Moss and weeds in the joints
Moss, weeds and grass in paver joints and cracks mean organic matter has built up. Cleaning and re-sanding the joints helps stop them returning.
Before you decide
If the surface is damaged, cracked or crumbling, washing will not fix it. Repair work may be needed first.
Pressure washing in Gympie
Prefer to leave it to someone else? Hard at it offers pressure washing across Gympie and surrounding suburbs, with free quotes. See our pressure washing service or request a free quote.
Related reading
- When should you pressure wash your driveway in Gympie
- What surfaces can be pressure washed safely
- Difference between pressure washing and regular cleaning
Frequently asked questions
Will a stain come out completely?
Fresh stains often do. Old or deep stains may fade but not vanish completely.
Can I do it myself?
Yes, with care. Hire a professional for large areas or delicate surfaces.
How do I stop moss coming back?
Improve light and air flow, clean regularly and consider a treatment or sealer.
Is it worth washing before selling?
Yes. It is one of the cheapest ways to improve first impressions.