? maybe they’re just looking for water with the heat? They could also be attracted to toothpaste if you have any fruit flavoured / smelling ones in your bathroom. I noticed when we had our table compost bin in the kitchen it attracted fruit flies and they ended up in our bathroom for the water and my kids’s strawberry flavoured toothpaste. They must have a great sense of smell!

I am a little confused as to fruit flies.
Are these flies drain flies??? drain flies are small black flies and come out of the drains in bathrooms that are seldom used. Get some draino or the like and give the drains a really good clean out.

Description:
Drain flies are classified as nematocera and are small (<2 mm). The adults have long antennae and the wings are leaf-shaped, either slender or broad, with the most elementary wing venation of any Diptera, having little more than a series of parallel veins without crossveins. Adult Psychodidae are typically nocturnal though they orient themselves around lights and may appear to be attracted to light.

As a nuisance, they are associated with damp habitats in human bathrooms and kitchens. The larvae of the subfamilies Psychodinae, Sycoracinae and Horaiellinae live in aquatic to semi-terrestrial or sludge-based habitats, including bathroom sinks, where they feed on bacteria and can become problematic.[1] Prevention is best accomplished by removing food sources such as hair clogs in drains.

The adults live for about 20 days, during which they will breed only once. Adults lay their eggs just above the water line inside moist drains. Sometime later, these eggs hatch into drain worms. The dark 6–7 mm long larvae are similar to those of mosquitoes in that they breathe through a small tube located at the back end of their narrow, maggot-like bodies. These larvae can sometimes be seen crawling along the moist edges of crevices in shower stalls or bathtubs. The insects complete their pupation stage submerged/ wet, and the adults then hatch at or under the waterline.

There are a huge number of sites on google to help if indeed this is the problem and I wish you best of luck.
Just google drain flies.

I am a little confused as to fruit flies.
Are these flies drain flies??? drain flies are small black flies and come out of the drains in bathrooms that are seldom used. Get some draino or the like and give the drains a really good clean out.

Description:
Drain flies are classified as nematocera and are small (<2 mm). The adults have long antennae and the wings are leaf-shaped, either slender or broad, with the most elementary wing venation of any Diptera, having little more than a series of parallel veins without crossveins. Adult Psychodidae are typically nocturnal though they orient themselves around lights and may appear to be attracted to light.

As a nuisance, they are associated with damp habitats in human bathrooms and kitchens. The larvae of the subfamilies Psychodinae, Sycoracinae and Horaiellinae live in aquatic to semi-terrestrial or sludge-based habitats, including bathroom sinks, where they feed on bacteria and can become problematic.[1] Prevention is best accomplished by removing food sources such as hair clogs in drains.

The adults live for about 20 days, during which they will breed only once. Adults lay their eggs just above the water line inside moist drains. Sometime later, these eggs hatch into drain worms. The dark 6–7 mm long larvae are similar to those of mosquitoes in that they breathe through a small tube located at the back end of their narrow, maggot-like bodies. These larvae can sometimes be seen crawling along the moist edges of crevices in shower stalls or bathtubs. The insects complete their pupation stage submerged/ wet, and the adults then hatch at or under the waterline.

There are a huge number of sites on google to help if indeed this is the problem and I wish you best of luck.
Get Rid Of Drain Flies | Drain Fly Control Treatment
http://www.doyourownpestcontrol.com/drainflies

How to Get Rid of Drain Flies: 14 Steps (with Pictures …
http://www.wikihow.com › … › Housekeeping › Pest Control › Fly Control

How to Get Rid Of Drain Flies Fast – Get Rid Of Flies
http://www.getridoffliesguide.com/how-to-get-rid-of-drain-flies/

To name but a few ..do hope this helps.

There may be a leak somewhere and the water was attracting the flies and causing the mould.

hmm that is strange hey! was the black just mould?

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  • • mum888 replied
    • 05 Jan 2016 , 9:16 pm

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  Thank you all, opened windows for last few days , getting better it seems

How weird. Maybe they just thought the place was abandoned?

Maybe locate the point of entry and seal it and also more ventilation should help.

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  • • mum888 replied
    • 02 Jan 2016 , 6:51 pm

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  Thank you . That is the problem, we don’t know where it is coming from . We are really hopeless when it comes to maintenance .

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  • • 
    • • mom93821 replied
      • 03 Jan 2016 , 7:44 am

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    A puzzle for you? Maybe ask staff at Bunnings in the nursery and plumbing sections – they may have an idea and the advice will be for free.