Concrete Cleaning & Sealing Sydney

Sydney's specialist in concrete cleaning and sealing

Concrete is one of the most common hard surfaces in Sydney — and one of the most overlooked. Done right, a properly cleaned and sealed concrete surface looks great for years, sheds water, resists oil stains, and stays mould-free. Done wrong, concrete absorbs grime, pits, discolours and ages well before its time.

Cityshine has cleaned and sealed concrete across Greater Sydney since 2003 — from heritage homes and suburban driveways to commercial carparks, shopping-centre walkways and civic plazas. Every job is delivered to the same premium standard, using Australian-made sealers formulated for Sydney's climate.

What we work on

• Plain concrete driveways, paths and patios
• Exposed aggregate driveways and paths
• Stamped and stencilled concrete
• Decorative coloured concrete
• Polished concrete (indoor floors)
• Commercial concrete — carparks, warehouses, plazas, walkways

What goes wrong with concrete

• Oil and tyre marks — especially on driveways and commercial carparks
• Mould and algae — in shaded or damp areas
• Efflorescence — white salt deposits leaching to the surface
• Faded colour — on stamped, stencilled or coloured decorative concrete
• Surface dusting — on unsealed concrete that's wearing down
• Cracks and joint deterioration — letting water in and breaking down the slab

How we clean and seal concrete

1. Site assessment — Project Manager inspects the surface, identifies any oil, rust, efflorescence or damage, and confirms the right approach.
2. Pre-treatment — Targeted chemical treatments lift oil, rust and built-up grime.
3. Pressure cleaning — Calibrated PSI for your concrete's age and finish. High enough to clean, low enough to never pit or etch the surface.
4. Neutralisation & dry-down — Surface fully neutralised and dried before sealer touches it.
5. Sealer application — Premium PCA sealer applied — penetrating for natural matt finish, topical for "wet look" or colour enhancement, anti-slip additives where needed.
6. Final inspection & walkthrough — Quality check, then walk you through care advice.

What you get out of professional cleaning and sealing

• Restored colour and finish — especially dramatic on decorative concrete
• Oil, tyre mark and food stain resistance — sealed concrete sheds, unsealed concrete absorbs
• Mould and efflorescence prevention — sealer blocks moisture pathways
• Easier maintenance — sealed concrete cleans with water and a broom for years
• Surface life extended — sealing prevents the slow surface dusting and pitting that ages concrete prematurely
• Anti-slip safety — optional additives reduce slip risk on driveways and patios

FAQ

• Will pressure cleaning damage my concrete? Not if it's done right. We adjust PSI to your concrete's age and finish, and we never use techniques that pit or etch the surface.
• Can you bring decorative concrete back to life? Yes — faded stamped and stencilled concrete responds especially well to a deep clean followed by a colour-enhancing seal.
• How long does the seal last? 3–7 years for residential driveways, longer for sheltered surfaces. Premium PCA sealers carry warranties of up to 15 years.
• Can you add anti-slip? Yes — anti-slip additives blended into the sealer at application.
• Do you work on commercial concrete? Yes — carparks, warehouses, plazas, shopping-centre walkways. We've delivered commercial concrete projects for councils, builders and property owners across Sydney since 2003.