Southampton, Hampshire
Condensation and mould ventilation fixes in Southampton
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Southampton and SO14, SO15 and SO17.
- From £490 inc VAT per fan
- Free survey
In Southampton homes, black mould usually comes down to the same few causes: weak fans, loft-vented ducts and no background ventilation.
We cover Southampton and the surrounding SO14, SO15 and SO17 postcodes as part of our work across Hampshire. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
Condensation and mould fixes in Southampton at a glance
- Town
- Southampton, Hampshire
- Postcode districts
- SO14, SO15 and SO17
- Nearby
- Woolston (1 mile), Portswood (2 miles) and Hythe (3 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach condensation and mould fixes in Southampton
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.
Mould treatment advice
How to clean and treat affected areas once the cause is fixed.
Survey and findings
Humidity and surface readings, existing fans flow-tested, and a written list of causes and fixes.
Guide prices in Southampton
| Work | Guide price |
|---|---|
| Condensation and mould ventilation survey with written findings (per home) | £140–£250 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £490–£825 inc VAT |
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £875–£1,525 inc VAT |
South East 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 England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. Damp and mould is assessed as a hazard under the Housing Health and Safety Rating System in England.
Questions from Southampton
What is the price of a condensation fix in Southampton?
Guide prices for Southampton use South East rates: new ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) is typically £490 to £825 inc VAT per fan. We confirm a fixed price in writing before any work starts.
Is black mould dangerous?
Damp and mould can affect health, particularly for people with asthma, allergies, weak immune systems, children and older people, according to NHS and government guidance. It should be dealt with rather than lived with.
Is PIV or MVHR better for condensation?
For most existing homes with general condensation, PIV plus good extract fans is the most cost-effective fix. MVHR suits airtight, well-insulated homes and full renovations.
Is the survey free in Southampton?
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 Southampton?
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.
Book a condensation survey in Southampton and get a written list of causes and fixes.
Condensation and mould fixes near Southampton
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