Cardiff, South Glamorgan
Condensation and mould ventilation fixes in Cardiff
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Cardiff and CF10, CF11 and CF24.
- From £425 inc VAT per fan
- Free survey
In Cardiff, condensation and mould are usually at their worst between October and March.
We cover Cardiff and the surrounding CF10, CF11 and CF24 postcodes as part of our work across South Glamorgan. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
Condensation and mould fixes in Cardiff at a glance
- Town
- Cardiff, South Glamorgan
- Postcode districts
- CF10, CF11 and CF24
- Nearby
- Whitchurch (3 miles), Penarth (3 miles) and Rhiwbina (4 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
How we approach condensation and mould fixes in Cardiff
Ventilation is usually the biggest part of the cure, but not the only part. Heating patterns, insulation gaps and cold bridges matter too, and some damp is not condensation at all: leaks, penetrating damp and rising damp need different trades.
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 Cardiff
| 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.
Signs it is time to call us
- 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 Cardiff
What is the price of a condensation fix in Cardiff?
Guide prices for Cardiff 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 Cardiff?
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 Cardiff?
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 Cardiff visit and we will test your existing fans before recommending anything.
Condensation and mould fixes near Cardiff
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