Condensation: Condensation happens when warm air collides with a cold surface. You will usually find signs of this around your windows, even in your bedroom, which can cause mould to grow along the frame. Volume: 6 x 750ml | Type: Spray bottle | Suitable for: Bathroom, kitchen and living room | Scent: Unscented What we like

Humidity: From using an appliance like a tumble dryer or washing machine or going about daily tasks like taking a shower or cooking dinner, humidity is the most common cause of mould. Volume: 2x100ml | Type: Squeeze applicator | Suitable for: Sealing over mouldy sealant on baths and sinks | Scent: Unscented What we like Can’t be used on high gloss painted walls, laminate blinds or metal (such as aluminium and stainless steel)If you’re struggling with mould lichen and algae on your paving or patio, the Wet & Forget Mould Lichen and Algae Remover may be your best bet. You can dilute it using one part Wet & Forget to five parts water, which means that this bottle containing five litres of solution will make a whopping 30 litres – enough for up to 300 metres squared. You don’t even need to scrub. Just follow the instructions on the container – wet the area, then leave it to do its thing if it rains, even better, as the rain helps to reactivate the product. If you’re satisfied with step two, you can apply the mould remover onto your surface as directed on the label. Dettol Mould and Mildew [Remover] is amazing. If that doesn't work, you have real issues!” (Tried and trusted by Mumsnetter peachgreen) Our verdict Poor ventilation: Linked to condensation and humidity, if you aren’t regularly ventilating your home, moisture has nowhere to escape. Ensuring you use your extractor fan in the kitchen and bathroom and open windows for 10 minutes in the morning can make a big difference. No matter how tempting it might be, you should never try scrubbing or scraping at mould, as this can release spores you’ll breathe in. If a general household cleaner or bleach doesn’t remove the mould, you must find a mould remover that can kill and prevent it from returning.

Astonish’s Mould and Mildew Blaster is a Mumsnetter and Mrs Hinch-approved multi-use household cleaner that eliminates mildew, mild cases of mould and kills 99.9% of bacteria in just 10 minutes; just spray, wait and wipe. Volume: 500ml | Type: Spray bottle | Suitable for: Inside and outside | Scent: Unscented What we like Cillit Bang Mould Spray is brilliant - spray it on, wipe it off. Just done our bathroom with moulds up easily as there's no extractor fan." (Tried and trusted by threepiecesuite) Our verdict

3. Best black mould remover: Cillit Bang Black Mould Remover

HG Mould Spray is a name that comes up again and again (and again) on Mumsnet as the best mould remover. Users love it because it’s affordable, effective and plumber recommended. Whether you’ve got mould on plastered walls, tiles, bathroom seals, grout, windows or outdoor furniture, just spray on the HG Mould Spray, wait 10 minutes and simply wipe it away. If you're not in too much of a hurry, there’s a product called Wet & Forget which you dilute and apply with a garden sprayer. It’s a fungicide which is activated by the weather. It will gently remove moss and mould without the aggressive action of a pressure washer.” (Vetted by Mumsnet user rslsys) Our verdict Volume: 1 litre | Type: Bottle (add to water using cap) | Suitable for: Baby bath toys, kitchen surfaces and utensils | Scent: Unscented What we like Volume: 500ml | Type: Spray bottle | Suitable for: Bathroom, kitchen, outdoor | Scent: Unscented What we like