Llantrisant, Mid Glamorgan
Condensation and mould ventilation fixes in Llantrisant
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Llantrisant and CF15, CF38 and CF72.
- From £425 inc VAT per fan
- Free survey
For Llantrisant homes with streaming windows every morning, the fix is usually cheaper than people expect.
Work in Llantrisant follows the rules for Wales and finishes with a written record of what was fitted and how it was set up.
Condensation and mould fixes in Llantrisant at a glance
- Town
- Llantrisant, Mid Glamorgan
- Postcode districts
- CF15, CF38 and CF72
- Nearby
- Pontypridd (4 miles), Tonypandy (7 miles) and Whitchurch (7 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
Condensation and mould fixes for Llantrisant homes
If extract fans are weak, ducted into the loft or switched off, and windows stay shut in winter, that moisture settles on the coldest surfaces: window reveals, external corners, behind wardrobes and on bathroom ceilings. Mould needs that damp surface to grow.
Fan upgrades
Weak or loft-vented fans replaced and ducted outside, with humidity control.
Whole-home ventilation
PIV, continuous extract or MVHR where moisture is spread through the house.
Guide prices in Llantrisant
| Work | Guide price |
|---|---|
| Condensation and mould ventilation survey with written findings (per home) | £120–£215 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £425–£700 inc VAT |
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £750–£1,325 inc VAT |
Guide prices using Wales rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Common reasons people call
- Damp patches that dry out in summer and return in winter
- Someone in the home with asthma or allergies made worse by damp
- Black mould on window reveals, ceilings or behind furniture
Rules that apply in Wales
In Wales, ventilation follows the Welsh Approved Document F rather than the English version, with building control checking notifiable work. Rented homes in Wales must be fit for human habitation under the Renting Homes (Wales) Act, and damp and mould is one of the matters considered.
Questions from Llantrisant
Is the survey free in Llantrisant?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
What is the main cause of condensation in a house?
The main cause is moisture from everyday living, such as showers, cooking and drying clothes, that is not being extracted, combined with cold surfaces where it condenses. Poor or failed extract fans are a very common cause.
Will a dehumidifier fix condensation?
A dehumidifier helps in one room but treats the symptom. Fixing the extract in the wet rooms, and adding whole-home ventilation where needed, removes moisture before it spreads.
How do I get a price for a condensation fix in Llantrisant?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
What area around Llantrisant do you work in?
All of Mid Glamorgan. Near Llantrisant that includes Pontypridd, Tonypandy, Whitchurch and Rhiwbina.
Book a condensation survey in Llantrisant and get a written list of causes and fixes.
Condensation and mould fixes near Llantrisant
More services in Llantrisant
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