• Cellar Tanking Systems and Basement Conversions
  • Wet Rot and Specialist Dry Rot Treatments
  • High Pressure Damp Proof Course Injection
  • Same day 1 hour return Woodworm Spray Treatments
  • Wet Rot and Specialist Dry Rot Treatments
  • Condensation and Black Spot Mould Treatments
  • Cellar Tanking Systems and Basement Conversions
  • Wet Rot and Specialist Dry Rot Treatments
  • Same day 1 hour return Woodworm Spray Treatments
We want to show you why some work needs to be carried out and what causes the damage to your home,
so we will show you what the surveyor is looking for and how we can repair the damage to your property.

Condensation Control

Ventilators and de-humidifiers

  • Heat Recovery Vent ~ Kitchen, Bathroom, Utility,
    Conservatory any damp rooms. Recovers up to 86% of the heat at full boost, pull cord for manual override,
    humidity and night sensors, a clever piece of kit.
    Approx £647 fitted.

  • Heat Recovery Vent ~ For flats or bungalows, requires ducting. Recovers 65% of the heat at full boost, a variety of auto and manual control options, a very clever piece of kit.
    Approx £977 fitted. (incl. estimated ducting distance)

  • Positive Pressure Unit ~ For flats on upper floors.
    Pushes out clean filtered dry air at 44 slow to 55 fast
    litres per second at 20dBA. Costs 21 pence per week
    to run if electricity is 12p per KwH. Inlet from outside.
    Approx £977 fitted.

  • Positive Pressure Unit ~ For a house and is attic mounted.
    Pushes out clean filtered dry air at 44 slow to 55 fast
    litres per second at 25dBA. Costs 21 pence per week
    to run if electricity is 12p per KwH. Inlet from hall ceiling.
    Approx £897 fitted.

Removing condensation from your house,

The 4 main causes of condensation are

  • 1 cooking,
  • 2 baths or showers,
  • 3 washing and drying clothes and
  • 4 breathing or too many people for the space available.

The temperature decides how much water is carried and how far it can travel.

How it works in a car;

In a car, condensation forms on the coldest surfaces, usually the windows. This standing water can be turned back into a vapour by putting the heaters on and raising the temperature. You will use a fan on a high speed setting to force colder dry air in from outside to replace the warmer damp air inside the car.

So the dryer air from outside the car is exchanged for the damper air inside the car with the hot air acting as the transport system to turn the water into a vapour and carry that water around the car and eventually outside.

How to remove condensation from your home;

This is very similar to your home. You do not have a fan that will replace the damp air in your home several times a minute as you do in a car, so you need to work smarter.

A large extractor must be fitted in the kitchen, to remove the water vapour from cooking. This will only work if you close the kitchen door whilst you are cooking and give the fan a chance to work.

A small moisture sensor extractor must be fitted in the bathroom, to remove the water vapour from showers or baths. This will turn its self off when the moisture level drops to normal. This will only work if you close the bathroom door during a bath or shower and give the fan a chance to work.

A ceiling mounted de-humidifier can be fitted to collect the vapours floating around the house, but these are expensive, a smaller cheaper mobile de humidifier can help by placing it in the hall or in the path of the water vapour travelling around you home.

Clothes drying must be done outside or in a dryer with an external exhaust or a condenser dryer. The water collector in the condenser dryer must be emptied regularly.

If there are a lot of people in living in a small house, extra ventilation will be required.

Cold surfaces are probably the most difficult to cure. Even if you have new double glazing, 60mm thermal dry lined walls or cavity wall insulation, if you create more water than your house can suspend in the air, it will turn back into water on the next coolest surface.

We recommend that you reduce the water creation in combination with control measures at the source of the water creation first as this is a far cheaper and usually free method of treatment that you can do yourself.

The temperature should be kept below 23 degrees centigrade to reduce the water held in the air and reduce the distance that the water travels, so buy a thermometer and hang it in the hall.

Open windows, trickle vents and air bricks in the summer when the air outside is less damp than the air in your house.

Even in the winter the air outside will be less damp than the air in your home, but YOU will make the choice to stay warm and keep the windows shut, trapping the warm damp air inside.

25 Ways to reduce condensation in your home, mostly for FREE

  1. fit a large extractor fan over the cooker in the kitchen
  2. fit a cooker hood over the cooker to catch more of the steam
  3. fit a small extractor fan by the shower in the bathroom
  4. keep the bathroom door shut when the room is filled with steam
  5. open the windows to remove large amounts of steam
  6. dont push the steam into the rest of the house
  7. use a condenser dryer to dry your clothes
  8. empty your condenser dryer's water collector
  9. do not use a clothes horse in the winter
  10. do not use the radiators to dry clothes in the winter
  11. don't have too many people for the space available
  12. fit 2 thermometers, 1 in your kitchen and 1 on the top landing
  13. keep the temperature below 25 degrees centigrade
  14. preferably keep the temperature below 23 degrees centigrade
  15. fit airbricks on windy walls, high enough to catch some air flow
  16. fit air bricks in bedrooms with a closing vent
  17. open the air vents so long as it is warm enough
  18. open the trickle vents on your windows
  19. open your windows on dry days
  20. close the windows on wet days
  21. the air outside will still be dryer on cold, dry days
  22. wear some clothes in stead of putting the heating up
  23. use a small £50 mobile de-humidifier in the winter
  24. empty the water collector in your de-humidifier
  25. when you batten down the hatches in the winter, think about how much water you are creating and trapping in the house, this is why the condensation and mould problems get worse in the winter.

Black Mould growth inside your home.

Mould needs water to grow. The water is supplied by a regular creation of condensation in your home, by you. You can control the amount of water you create from cooking, showering, bathing, drying and by controlling the temperature in your home.


How do we get rid of the condensation in your home?

We will carry out a free survey of the property to determine of there are any faults with the property or if it is the actions of the occupiers that are causing the condensation.

All condensation is usually caused by the members of the household and therefore this excessive water vapour can be stopped.

Level 1, Education

This is carried out during the survey if the customer will let us.

We will show you in your home were the condensation is created, how it travels, were it travels to and why you could get mould growth in some areas and not others. This is free of charge.

Level 2, Primary cleaning

We will clean the black spot mould and attempt to find the mould spores that are spread throughout your home. We will only use low level chemicals that are not harmful with a 1 hour return time after we have cleaned.

This costs around £300 and can be completed within 1 day. This can often be the end of the mould if the level 1 and level 2 actions are taken.

An option to paint the badly effected areas with a mould resistant paint such as alcoves, poorly ventilated corners and persistent external walls. £300 per day, most houses can be completed within 1 day.

Level 3, Ventilation and De-humidifying

We can fit passive air bricks or vents which attract the moisture out of a room whilst not allowing a draft in. These range from £100 to £200.

We can fit a number of Triton low carbon fans which range from £200 to £400.

We can fit professional level heat recovery units or positive pressure units which range from £647 to £977 with an estimated amount of ducting.

Level 4, Decontamination

This will be necessary if steps 1 to 3 have not been taken and
there has been damage to the furnishings, clothes and other fabrics.

We will draw a line on the garden for example and all of the contents are placed to one side of the line. The house is cleaned using stronger chemicals, the items are cleaned and can only cross the line into your house when they are dry. This may involve using a local launderette. Items that can not be cleaned are thrown away.

The cost of this clean is around £200 per day plus launderette costs and potentially replacement costs for the items thrown away.

A less cost effective way to control condensation is the use lime based plasters in the home. The lime plaster can absorb water rather than allow it to gather on the walls. This water is released when it is warm adding a degree of control over the water condensation formation.

Call Aquarius free for a free survey:
0800 0730 415 or Walsall 01922 449891

serving the West Midlands for over 10 years

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mould from a cold wet floormould on a cold wet ceilingmould by a cold doormould in an un-ventilated corner
Professional condensation control equipment

    Condensation Products

  1. Heat Recovery Vent ~ Kitchen or Bathroom
  2. Heat Recovery Unit ~ Flat or Bungalow
  3. Positive Pressure Unit ~ Flats upper floors
  4. Positive Pressure Unit ~ House, Attic mounted






Condensation 1Condensation 2Condensation 3Condensation 4Condensation 5Condensation 6Condensation 7Condensation 8Condensation 9Condensation 10Condensation 11Condensation 12Condensation 13Condensation 14Condensation 15






A suggested poster for tennats to help them control their condensation.

    This can be used by landlords and Tennants

  1. Right click and save it
  2. Print it off, sign it and date it
  3. Display it in your property
  4. Use the suggestions to reduce black spot mould
  5. Call us if the problem does not stop






mould from a cold wet floormould on a cold wet ceilingmould by a cold doormould in an un-ventilated corner
black spot mould caused by excess water being created by the household occupants

    Mould being supplied by condensation

  1. Mould forming by the cold door
  2. Mould forming in a cold ceiling corner
  3. Mould forming in a cold corner
  4. Mould forming in an un-ventilated corner






mould from a cold wet floormould on a cold wet ceilingmould by a cold doormould in an un-ventilated corner
mould issues and treatments

    Mould being supplied by condensation

  1. Mould in a shower cubical
  2. Black spotted wallpaper mould
  3. Triton cleaning products
  4. Triton anti mould emulsion, guaranteed
    to prevent condensation mould even in
    persistant cases.






condensation

Condensation

this is what the surveyor will be looking for:

What is condensation

  1. Condensation is water vapour returning to its liquid form when it cools
  2. Condensation, unlike damp, travels in the air as vapour, from one area to another area
  3. Condensation is a lifestyle problem and can be cured by making a few simple changes
  4. Mould growth requires a lot of water which can be supplied by regular condensation

The 4 main sources of condensation are;

  1. The kitchen, from cooking
  2. The Bathroom, from showers or baths
  3. Drying clothes, either from the clothes dryer or by drying clothes on the radiators
  4. Breathing, or too many people or pets living in a small space

The effects of temperature and the amount of water in your home

  1. Water is held in the air, how much depends on the dew point, that changes with the temperature
  2. Cold air holds a small amount of water, air at 10C may hold 1 litre per cubic meter or air
  3. Hot air holds a large amount of water, air at 30C may hold 10 litres per cubic meter or air
  4. So the dew point is the point at which no more water can be held in the air
  5. Air at 30C may not hold 11 litres per cubic meter or air, 1 litre must fall as condensation
  6. So the amount of water floating around your home depends on the temperature
  7. To reduce the amount of water in the air, you could reduce the temperature in your home
  8. We have fitted thermometers in houses with a red line at 23C to reduce the condensation

The effects of temperature and the distance water can travel in your home

  1. Water floats as small particles in the air
  2. Small slow moving particles of water bump into each other forming larger particles of water
  3. Cold air moves slowly, so the water forms large heavy particles which can not travel very far
  4. Warm air interacts with cold air forming currents, where warm air rises and cold air falls
  5. The moving air is the transport system as the water particles stay small and are carried further
  6. Warm homes can have condensation problems far away from the water source
  7. To reduce the distance that the water travels, you could reduce the temperature in your home

Why condensation forms in certain areas

  1. The moist air travels around your home in a cycle, up and down the stairs, in and out of rooms
  2. The heavier moisture can hit walls and be picked up again by currents travelling around the house
  3. If the vapour lands in an un-ventilated area, it will collect there and not dry out, such as corners
  4. If the warm moist air touches a colder wall, the water vapour forms into condensation
  5. If the warm moist air touches a cold window, the water vapour forms into condensation
  6. Condensation can form in cold corners, outer walls, opposite stairs and opposite bathrooms
  7. Warm air is travelling around the house, collecting water, that is released in cold areas
  8. Stand with your back to the kitchen, put your arms out, this is where condensation will form
  9. Stand with your back to the bathroom, put your arms out, this is where condensation will form
  10. Stand at the top of the stairs, put your arms out, this is where condensation will form
  11. If you are pointing to a corner where condensation forms, then this water is travelling to this point

Removing the water vapour at source

  1. A large extractor must be fitted in the kitchen, to remove the water vapour from cooking
  2. A small extractor must be fitted in the bathroom, to remove the vapour from showers or baths
  3. A ceiling mounted de-humidifier can be fitted to collect the vapours floating around the house
  4. Clothes drying must be done outside or in a condenser dryer, which must be emptied regularly
  5. If there are a lot of people in living in a small house, extra ventilation will be required
  6. The temperature must be kept below 25 degrees centigrade
  7. Open windows in the summer when the air is less damp than the air in your house

Call Aquarius free for a free survey: 0800 0730 415 or Walsall 01922 449891
serving the West Midlands for over 10 years

see an example of our work

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