Aluminium is a common material used when manufacturing window frames and details. It's a light, durable material that can withstand many types of weather without being damaged. This is especially important as aluminium windows are outside structures that can pose a safety threat if they were to be damaged. For you to fully benefit from the advantages of aluminium window frames and keep them in pristine condition, you should know how to clean them properly.
One of the most common problems with aluminium window frames is that they can get anodised. This means they get oxidised and form a coat which can be hard to get off. The most important thing to remember when cleaning anodised aluminium is that you should not use materials that are abrasive on the metal. This could damage the metal even more than it already is. Use a mild cleaning product, or a product specifically made for cleaning aluminium, and scrub the aluminium with fine steel wool. When you've gotten the entire coat off by doing this, you should avoid wetting the aluminium with water, as this could create more oxidising. Just wipe it off with a clean cloth and let it air dry.
You can use a similar method for cleaning the internal pieces of the aluminium window. The cleaning product is not solely for getting rid of oxidation, but might be used just to get rid of dirt. If you're worried about damaging paint or wood that you also might have around the window on the inside, you should make a cloth or a rag instead of steel wool.
You should also tend to the aluminium springs in the window. If these get oxidised, it can make the window hard to open. Clean as thoroughly as possible and use a suggested lubricant to make them easier to handle. Make sure you wipe excess lubricant off if it starts to drip, as it can dry and leave a residue that will look unpleasant on your window frame.
To make the aluminium shine, you could use a specifically made aluminium polisher. However, if you want to save some money, you could also use regular car polish. Polish the window using circular motions with a rag specifically made for polishing. Make sure to protect the glass part of the window using a blanket or other piece of cloth, as cleaning products designed for metal could make the window cloudy. Wash and polish the glass after you've washed and polished the frames to avoid getting leftover metal cleaning products on the more sensitive glass part.