Southsea, Hampshire
Condensation and mould ventilation fixes in Southsea
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Southsea and PO1, PO4 and PO5.
- From £490 inc VAT per fan
- Free survey

We survey Southsea homes for condensation with meters, not guesswork, and explain what we find.
Work in Southsea follows the rules for England and finishes with a written record of what was fitted and how it was set up.
Condensation and mould fixes in Southsea at a glance
- Town
- Southsea, Hampshire
- Postcode districts
- PO1, PO4 and PO5
- Nearby
- Portsmouth (1 mile), Gosport (2 miles) and Cosham (4 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
Condensation and mould fixes for Southsea homes
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.
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 Southsea
| 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 |
Guide prices using South East 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
- Musty smell in bedrooms or wardrobes
- Peeling paint or wallpaper in bathrooms
- Damp patches that dry out in summer and return in winter
Rules that apply in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). Damp and mould is assessed as a hazard under the Housing Health and Safety Rating System in England.
Questions from Southsea
Do you cover Southsea and nearby?
Yes. We cover Southsea and nearby places including Portsmouth, Gosport, Cosham and South Hayling. Send your postcode and we will confirm.
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.
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.
What is the price of a condensation fix in Southsea?
Guide prices for Southsea 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 the survey free in Southsea?
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.
Book a condensation survey in Southsea and get a written list of causes and fixes.
Condensation and mould fixes near Southsea
More services in Southsea
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