Protect your home from harmful mould with HG’s expert solutions

Mould in your home can be both unhealthy and dangerous, so it's essential to address it as soon as possible. Our HG expert explains why our specially formulated mould sprays are so effective in quickly and thoroughly removing mould.

Watch our demonstration video to see the proven power of HG mould sprays and removers in action - and discover why we're the best-known solution in mould removal.


Discover our specialist mould removers

Get rid of mould, mildew and fungus the first time with our specialist mould removers. Whether you’re cleaning tiled walls, marble, grout or plaster, in your bathroom, kitchen, cellar, garage, shed or even sauna, HG swiftly and effortlessly eliminates all mould, leaving no trace of unsightly black stains. Choose the right formulation for your home. 

STEP 1: TREAT

  • HG mould spray

    For widespread coverage
    HG mould spray

    • Self-acting (no scrubbin needed!) 
    • Results within 30 minutes 
    • For tiles, grout, silicone seals, plaster, etc. 
    • Best-selling, original formulation
    Buy online
  • HG mould remover foam spray

    For vertical surfaces and targeted areas
    HG mould remover foam spray

    • Self-acting (no scrubbin needed!) 
    • Results within 30 minutes 
    • Easier to spray directly on the mould 
    • Adheres better to surfaces
    • Less chance of splashing
    • Milder fragnance
    Buy online

HG is among others for sale at these stores and web shops:

ROBERT DYAS
AMAZON
Uk Travisperkins
Screwfix Logo
Home Bargains
HH Logo 2 Lines REG CMYK
B&Q
YTC
Savers Logo

Stay protected with our mould preventor

After treatment, use the preventor. This convenient spray prevents mould from developing by sealing surfaces from moisture and air. Ideal for the bathroom and other places where mould is quick to form. 

STEP 2: PREVENT

  • HG mould preventor

    For protection against mould
    HG mould preventor

    • Prevents mould formation 
    • For tiles, grout, silicone seals, plaster, etc. 
    • Suitable for glossy and matte surfaces
    Buy on Amazon


Destroy mould in one go

Loved by thousands - rated a 4.8 out of 5 Stars

HG mould spray has built a reputation for doing exactly what it promises – tackling mould quickly, effectively, and with lasting results. But you don’t have to just take our word for it – check out these reviews from customers who’ve tested it for themselves.

Both mould sprays are reviewed by thousands of people with almost a perfect 5 star score - and we couldn’t be prouder of that! HG. Does what it promises.

HG products are available at retailers across the country

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Read our tips on how to get rid of mould in your house


FAQ's on mould

Which types of mould are commonly found in the house?

There are various types of moulds. Mould in a house generally involves Stachybotrys (black mould), Alternaria, Aspergillus and, Cladosporium. The colour of mould in a house differs, but usually, it is white or black mould. The spores of mould can be created by damp problems in a house, but they can also enter through a window, door, or air grill. The mould usually stays behind on walls and/or ceilings, which produces white or black mould. Dead mould also still contains substances that are harmful to human health. Removing mould as quickly as possible is important.

What are the most common problems with mould in a home

Mould in the home can be formed in various rooms or surfaces. The 3 most common problems with mould in a home: 

  1. Mould in the bathroom
    Mould in the bathroom is a common occurrence. Warm water vapour produced by showering or a bath produces condensation. This happens at the time that water vapour cannot be discharged adequately. It condensates on walls, the ceiling or windows. The surface of walls or the ceiling is rough, and that means they absorb damp easily. A mouldy wall or ceiling is a common problem in the bathroom. 
  2. Mould in the bedroom
    Not just in the bathroom, but mould can also occur in the bedroom. Mould develops in damp and warm rooms. If a bedroom is not ventilated properly, mould quickly forms because the damp cannot leave the room easily. In the bedroom, mould can spread with spores that float in the air. These spores end up on walls and windows, which causes mould. If you have mould on the wall, it is important to strip the wallpaper first.   
  3. Mould in the cellar
    A cellar is also an ideal room for mould. A cellar often does not have a window, which means there is insufficient ventilation. Cardboard boxes, wood and fabrics are ideal nutrients for mould in a cellar. Mould in a cellar is bad for your health and that makes the room unusable. 

    Mould in the house is bad for your health. It does not make a difference whether it concerns mould in the bathroom, bedroom, cellar or any other room. Removing mould is important, but dealing with the causes of mould is just as important.

What causes mould?

The cause of mould in the bathroom, bedroom or another place in the house is a surplus of humidity. Mould can only develop in damp conditions. Mould comes from damp issues. So apart from removing the mould, you also need to deal with the damp issue. These are the 3 most common damp issues:

  1. Penetrating damp
    Problems with the humidity of the facade can result in penetrating damp. Humidity of a facade that does not dry out properly can penetrate to the internal walls. The result is often damp walls, where mould can form. Penetrating damp is often a problem in houses with cracks or damaged joints. Besides removing mould from the damp internal wall, you can impregnate the facade. Impregnation prevents penetrating damp in the facade. 
  2. Condensation
    When warm air cools down, condensation is formed. The warm air condensates on walls, the ceiling, or the windows. If the warm air is not discharged properly, the condensation has the chance to develop further into mould on the ceiling or the wall. Condensation can arise due to showering, bathing, drying clothing, or hot steam during cooking. 
  3. Rising damp
    In older houses there is often rising damp. This is due to a damp seal that does not work properly, which means humidity from the soil rises into the walls via the foundation. It means that walls can become extremely damp in some places. The humidity from the soil contains bacteria and salts, which means you can end up with mould, and  efflorescence on the walls. Efflorescence is a white deposit that is particularly visible on brick walls. 

Why do I have trouble with black mould?

Black mould is caused by damp conditions. This may have various causes, including rising damp, penetrating damp, condensation or a leak.

How can I prevent black mould?

As with other types of moulds, regular ventilation of the rooms in the house is important to prevent black mould. Another solution is to use our HG mould preventor. In any case pay particular attention to wet rooms, such as the bathroom.

  • Specialist since 1969

    In 1969 the company Van Altena B.V. with the import of HG products in the Netherlands. From the 1970s, all HG products are developed and produced at our production location (and also head office) in Almere.

  • Wide range

    HG is the specialist and now supplies more than 300 products for cleaning, maintenance and repair in and around the house. Each product has been specially developed by us for a specific problem.

  • Qualitative products

    All products are developed and tested in our own Technology & Research (T&R) department. Quality is paramount! Only when a product really does what it promises it comes on the market. It is not without reason that our slogan is: HG Does what it promises.

  • Market leader in the Benelux

    Our quality quickly became a success and the HG products can therefore be found in more and more households. People who use our products experience the quality and effectiveness. We have been the absolute market leader in the Benelux for years.

  • Sold worldwide

    In the eighties we started to export from the Netherlands. The products that we develop and produce in Almere are now sold to millions of people in more than 45 countries.