What regular care helps with, what can happen when build-up is left, and what cleaning cannot fix. Guidance for the services we offer, with sources you can check.
THE RIGHT CARE FOR THE CONDITION
Different surfaces. Different reasons for care.
Some maintenance supports drainage or a coating's condition. Some mainly keeps a surface looking clean. The right work and timing depend on the material, its condition and the manufacturer's instructions.
A stain is not always damage, and cleaning is not a substitute for repairs.
01
Driveways, paths & paving
Why it matters
Removing suitable dirt, oil and organic build-up improves presentation and helps manage surface contaminants that contribute to slips. Cleaning is one part of maintaining a usable path or driveway.
If maintenance is delayed
Moss, grease and other contamination can create a slip risk, particularly alongside wet conditions. Oil and organic litter may leave stains. The outcome depends on the material, contamination and exposure; a dirty driveway is not automatically structurally damaged.
Important limits
More pressure is not always better. Aggressive washing can disturb paving joint sand or damage an existing finish. Cleaning does not level uneven paving, repair cracks or make a surface slip-proof.
Signs to check: Visible growth, greasy patches, leaf build-up or a surface that feels slippery. Restrict access to a hazardous area while arranging suitable attention.
02
Exterior walls & house washing
Why it matters
Surface-appropriate washing removes dirt and contaminants from suitable painted exterior areas. Dulux includes washing and inspection in its coating-care guidance, with the method and frequency adjusted to the finish and environment.
If maintenance is delayed
Grime can remain on the finish. In coastal conditions, salt build-up can affect coating life. If damaged paint or an underlying moisture problem is left unaddressed, deterioration can continue; this needs more than a wash.
Important limits
Cleaning does not repair peeling paint, failed sealant, rot or water entry. Fragile coatings need assessment before cleaning, and repairs may need to come first.
Signs to check: Persistent surface grime, salt deposits or visible growth. Cracking, blistering or peeling paint calls for assessment of the coating and its underlying cause.
03
Roof care
Why it matters
Removing appropriate debris and checking roof condition are parts of roof care. LYSAGHT recommends inspection for debris, organic growth, ponding marks and metallic staining on its roof cladding.
If maintenance is delayed
Debris and deposits remain in roof areas where they collect. In sheltered areas of BlueScope-coated steel, moisture in accumulated dirt and pollutants can contribute to corrosion. This is a material-specific risk, not a claim that every dirty or darkened roof is failing.
Important limits
Cleaning does not replace a roof-condition inspection, fix leaks, replace broken tiles or repair failed fasteners and coatings. The roof material, condition and manufacturer guidance determine whether and how cleaning is appropriate.
Signs to check: Debris collecting in roof channels, visible rust or signs of water entry. Observe from the ground; leaks or damaged roofing need an appropriate roofing professional.
04
Gutters & water flow
Why it matters
Removing leaves and loose debris from gutters and accessible outlets helps keep the intended water path clear. This is different from washing the visible outside faces of the gutters.
If maintenance is delayed
Debris can partially or fully block the flow. During rain, overflow may reach eaves, ceilings or internal walls, depending on the roof, drainage and overflow arrangements. The National Emergency Management Agency identifies blocked gutters as one cause of overflow.
Important limits
A clear gutter can still overflow if the system is damaged, undersized, poorly arranged or overwhelmed by rainfall. Cleaning does not repair holes, failed joins or blocked underground drains.
Signs to check: Visible leaf build-up, plants growing in gutters, overflowing water or staining below gutter lines. Arrange repairs if overflow continues after debris has been removed.
05
Windows & glass
Why it matters
Routine cleaning removes surface dirt and helps keep the view clear. Extra care is important near construction work or sea-salt exposure; the appropriate method depends on the glass and any coating.
If maintenance is delayed
Ordinary dirt can obscure the view and appearance. Some contaminants pose a greater risk: Viridian identifies construction dust, concrete leachate and rust from steel as potential causes of glass staining or surface damage. Ordinary dusty glass does not mean permanent damage has occurred.
Important limits
Scratches, etching, failed seals and damaged glazing are not repaired by cleaning. Abrasive tools or unsuitable products can cause damage, so difficult marks need assessment rather than harder scrubbing.
Signs to check: Visible dirt, salt deposits or construction contamination. Report cracked glass or damaged fittings before cleaning; replacement or repair belongs with an appropriate glazing professional.
06
Solar panels
Why it matters
Accumulated dirt or debris can reduce electricity generation. Where soiling remains, appropriate cleaning removes that material. The benefit depends on how much soiling is present and on the system and conditions.
If maintenance is delayed
Persistent soiling may continue to reduce output. However, the Australian Government notes that rain normally cleans many panels installed at a tilt of at least 10 degrees. Light dust does not automatically justify a paid clean.
Important limits
There is no fixed percentage gain or guaranteed bill saving from cleaning. Reduced generation can have other causes. Panel cleaning is separate from electrical inspection, testing and repairs, which require appropriately qualified professionals.
Signs to check: Persistent visible debris or an unexpected generation drop. Use system monitoring and contact your installer about faults; do not climb onto the roof or handle electrical parts to investigate.
07
Sealed concrete & coatings
Why it matters
A suitable sealer can change the finish and make ongoing cleaning easier. Maintaining a coated surface includes appropriate cleaning, checking its condition and assessing when a compatible recoat is needed.
If maintenance is delayed
Oil, grease and organic litter may stain the surface. Dragging items or turning stationary vehicle wheels can mark or damage a finish. A worn or damaged coating needs assessment and suitable preparation before further coating.
Important limits
Sealing is not a structural crack repair or a guarantee against tyre marks or slipping. A change in sheen alone does not prove a coating has failed. Product compatibility, surface moisture, preparation and curing conditions matter.
Signs to check: Visible wear, peeling, persistent stains or whitening. Whitening can be a coating issue rather than dirt. Follow the instructions for the selected product before cleaning, recoating or returning vehicles.
HOW OFTEN?
Use a schedule that fits the property.
Start with product guidance.
Use the care instructions for your actual paint, roofing, glass, panels or sealer. A general cleaning plan does not replace a manufacturer's maintenance requirements.
Adjust to the conditions.
Nearby trees, shade, salt exposure, dust and traffic affect how quickly surfaces need attention. A sheltered wall and a busy shaded path need different care.
Check safely and act on changes.
Observe accessible areas from ground level. Report blocked flow, leaks, damaged materials or solar faults to an appropriate professional. Do not climb onto a roof or handle electrical equipment to investigate.
Reviewed 3 November 2026. These government and manufacturer sources support the points above. Product guidance applies to the relevant material or system, not automatically to every property.
Tell us what you have noticed and send photos taken safely from the ground. We can discuss suitable cleaning and flag when another trade may be needed.
