Rhondda, Mid Glamorgan
Condensation and mould ventilation fixes in Rhondda
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Rhondda and CF40, CF41 and CF43.
- From £425 inc VAT per fan
- Free survey

For tenants, landlords and homeowners in Rhondda, the common question is why the mould keeps coming back.
For condensation and mould ventilation fixes in Rhondda, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
Condensation and mould fixes in Rhondda at a glance
- Town
- Rhondda, Mid Glamorgan
- Postcode districts
- CF40, CF41 and CF43
- Nearby
- Tonypandy (3 miles), Mountain Ash (3 miles) and Aberdare (4 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
What the work involves
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.
Whole-home ventilation
PIV, continuous extract or MVHR where moisture is spread through the house.
Mould treatment advice
How to clean and treat affected areas once the cause is fixed.
Guide prices in Rhondda
| Work | Guide price |
|---|---|
| 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 |
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £330–£575 inc VAT |
Wales rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- Peeling paint or wallpaper in bathrooms
- Damp patches that dry out in summer and return in winter
- Someone in the home with asthma or allergies made worse by damp
Rules that apply in Wales
Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. In Wales, damp and mould is one of the matters that decides whether a rented home is fit for human habitation.
Questions from Rhondda
What is the price of a condensation fix in Rhondda?
Guide prices for Rhondda use Wales rates: new ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) is typically £425 to £700 inc VAT per fan. We confirm a fixed price in writing before any work starts.
How much does a condensation survey cost?
A ventilation survey with written findings costs £125 to £225 including VAT. If we are surveying for an installation we quote for, the survey is free.
Can you tell if it is rising damp?
We can tell you when the pattern does not look like condensation, such as a tide mark low on a wall or damp that appears after rain, and point you to the right specialist.
Is the survey free in Rhondda?
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.
How do I get a price for a condensation fix in Rhondda?
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.
Ask for a Rhondda visit and we will test your existing fans before recommending anything.
Condensation and mould fixes near Rhondda
More services in Rhondda
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.