It depends on your location (coastal, dusty, near traffic), how many windows you have, and how clean you want them. In many suburban homes, cleaning windows twice a year is typical. Homes near the ocean or with more exposure to pollen, salt, dust or pollution may need quarterly or more frequent cleaning.

Services often include both interior and exterior glass cleaning, cleaning window frames, tracks, sills, fly screens, and removing smudges or hard stains. It may also involve safety equipment for high or hard-to-reach windows.

Costs vary based on home size, number of windows, their condition (how dirty), height or difficulty of access, whether tracks/screens are cleaned, etc. Some services charge by hour; others by window size or pane. Single-storey homes tend to be less expensive than two-

storey or high-rise properties.

Not always. Many window cleaners offer services without needing the homeowner present as long as access is arranged (unlocked doors/gates, spare key, etc.).

Yes, in most cases, reputable companies are insured (public liability) and staff are police-cleared/background checked. This gives peace of mind especially when letting someone into your home or when working at heights.

They often can, though it may cost extra. Some stains (especially old mineral buildup, paint,

concrete splatters) may require special treatment, tools, or even replacing glass in extreme

cases. It’s best to get an upfront quote once the cleaner inspects the windows.

The frequency depends on where you live and your environment (dust, salt spray, bird activity, etc.). In many Perth suburbs, cleaning once a year is sufficient; in dustier or coastal areas, every 6-12 months or more often may be needed.

Yes, dirty panels (dust, grime, bird droppings, salt) can reduce output by 10-25% (or more in severe cases). Cleaning helps restore performance, so over time the extra energy gained often pays for itself.

You can do some cleaning yourself if you take safety precautions, use soft tools, mild soaps, de?ionised or filtered water, etc. But there are risks: damaging the panel glass, voiding warranties, or unsafe practices (working at height). Professionals have the right gear, training, and insurance.

* Use soft brushes, sponges, or soft cloths. Avoid abrasives.

* Use deionised or filtered water if possible (to avoid mineral streaks).

* Mild, non-abrasive cleaning solutions only; avoid harsh chemicals.

* Clean early morning, late afternoon, or on cloudy days to avoid hot panels, which can crack or lead to water spots.

Costs vary depending on the size of the system (number of panels), how dirty they are, access height, location, and frequency. As a rough guide, many residential cleans run in the $150 - $350+ range, though that can change.

It can if done improperly. Harsh cleaning, using the wrong chemicals, or physically damaging the panel surface can void warranties. Also, some manufacturers have specific maintenance or cleaning requirements. Hiring a professional who respects those requirements helps avoid risk.