The Top 5 Signs Your Home Needs Pressure Washing

April 24, 2025

Living in South East Queensland means plenty of sun, rain, and humidity—ideal conditions for dirt, mould, and grime to build up on your property. Over time, your home's exterior can start to look tired, neglected or even unsafe.

Pressure washing is one of the most effective ways to restore your property to its best, but how do you know when it’s time?

Here are the top five signs your home needs a professional pressure wash.

1. Visible Mould or Mildew

One of the clearest signs your home needs pressure washing is the presence of mould or mildew. These fungi thrive in damp, shaded areas and commonly appear on driveways, external walls, decks, and roofs. Aside from being an eyesore, mould can pose a health risk—especially to those with allergies or asthma.

If you're noticing green, black, or white spots on exterior surfaces, it’s time to book a clean. Pressure washing can quickly remove these contaminants before they cause damage or spread.

2. Grime, Dirt and Dust Buildup

Whether it’s wind-blown dust, road grime, or general pollution, every home gradually accumulates a layer of filth over time. While it may be subtle at first, the buildup can dull your home’s colour, make paint look faded, and reduce the overall aesthetic appeal.

Pressure washing can strip away years of grime in a single afternoon—revitalising your paintwork and brightening your home instantly.

3. Slippery Surfaces on Driveways or Paths

Driveways, patios, and garden paths often become slick due to the build-up of algae, moss, or decomposing organic matter. These slippery surfaces aren’t just unsightly—they’re a serious safety hazard.

If you’ve nearly slipped in your own backyard or noticed discolouration on concrete or pavers, it’s a strong sign that pressure cleaning is overdue. A thorough clean restores grip and makes outdoor areas safer for kids, guests, and pets.

4. Discoloured or Streaky Roof

Your roof is one of the most exposed parts of your home and often shows early signs of needing a clean. Streaks or patches on tiles, tin, or Colorbond roofing are usually caused by a mix of algae, dirt, and moisture.

While it’s easy to ignore, roof discolouration can affect your home's overall appearance and even shorten the life of your roofing materials. Regular roof pressure cleaning can extend your roof’s lifespan and keep your property looking tidy from top to bottom.

5. You’re Preparing to Paint or Renovate

Before painting your home’s exterior or undertaking renovations, it’s essential to start with a clean surface. Any dirt, mould, or debris left behind can affect paint adhesion or cause ongoing problems.

Pressure washing provides a clean canvas—whether you’re painting, sealing, or installing new features. It also helps you identify hidden issues such as cracks, leaks, or structural damage.

Why Choose Professional Pressure Washing?

DIY pressure washers often lack the power or technique needed for a proper clean. Professionals use commercial-grade equipment and adjust the pressure to suit different surfaces—ensuring a thorough clean without causing damage to paint, render, timber, or tile.