Condensation is moisture from indoor air settling on cold glass, corners, and walls, usually in the heating season. It is for houses and flats in England, Scotland, and Wales where black mould returns and there is no tide mark or rain stain. Send the quote form or WhatsApp with the room and the postcode.
Condensation Control Systems
Warm moist air from cooking, showers, drying clothes, and breathing hits a cold wall or pane and turns to water. The wall is not taking up groundwater.
The moisture load has to fall and the cold surfaces have to warm up. That is ventilation and how the home is heated, not a new damp-proof course.
If everyday ventilation is not enough, the survey can specify extract fans or a positive-input unit. The quote names the unit and the rooms.
A mould spray on a wall that stays wet grows back. Condensation treatment does not replaster a salt-contaminated rising-damp wall.
Condensation Control Systems
Short bursts of steam need air leaving the room. A fan that recirculates, or a window that is never opened, leaves the moisture indoors.
Cold external walls and closed trickle vents are a common pattern. Mould behind the bed is a cold-surface problem.
Water on the glass in the morning is condensation. It does not, by itself, mean the damp-proof course has failed.
A spare room with the radiator off becomes the coldest surface in the house. Moisture from the rest of the home ends up there.
Clothes on radiators and indoor airers load the room with moisture. The wall is not taking up groundwater.
A fan that spins but does not vent outside leaves the steam in the house. The survey checks the duct, not only the switch.
We look for cold-surface mould and rule out salts, a tide mark, and an outside defect.
We look for cold-surface mould and rule out salts, a tide mark, and an outside defect.
Drying clothes indoors, blocked vents, and fans that do not extract are fixed before a unit is sold.
Extract or a positive-input system is quoted only for the rooms the survey has measured.
Mould is removed once the surface is not being wetted every night.
Condensation is seasonal.
The treatment named in the written quote carries a 30-year guarantee.
The quote changes with how many wet rooms need a fan, whether a whole-house input unit is justified, and how much mould-damaged decoration there is. A damp-proof course is the wrong line on this quote. Everyday habits are part of the result and are not a substitute for a fan that does not extract.
Questions that decide whether this is the right job.
Not if the mould is condensation. The course does not reduce the moisture in the air or warm a cold corner.
No. Rising damp leaves salts and a low tide mark. Condensation leaves black growth on cold surfaces, often upstairs or on glass.
Use the extract fans, do not dry washing on radiators, and pull furniture slightly off outside walls. If the mould returns, the survey is the next step.
We deal with the damp surface and the moisture that feeds the mould. We do not give medical advice.
Tell us the floor, whether it follows rain, and the postcode. The quote follows the survey.
Get Your Free QuoteMould is cleared where damp has let it grow, and the moisture that fed it is dealt with.
Learn more about Mould Removal & PreventionA damp survey with moisture meters and thermal imaging, so the cause is known before any work.
Learn more about Damp Survey & Moisture ReportMoisture that comes through the wall from outside, including on older solid-wall houses.
Learn more about Penetrating Damp SolutionsSurveys run in Kent, Cardiff, and Glasgow, and in the other counties and towns on the areas page.
Name the room, the floor, and what the wall is doing. WhatsApp takes the same details.