Portswood, Hampshire
Condensation and mould ventilation fixes in Portswood
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Portswood and SO14, SO17 and SO18.
- From £490 inc VAT per fan
- Free survey
For tenants, landlords and homeowners in Portswood, the common question is why the mould keeps coming back.
Customers in Portswood can get a guide price online in a couple of minutes. It uses South East rates, which is what we would charge for the same job anywhere in Hampshire. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
Condensation and mould fixes in Portswood at a glance
- Town
- Portswood, Hampshire
- Postcode districts
- SO14, SO17 and SO18
- Nearby
- Southampton (2 miles), Woolston (2 miles) and Eastleigh (3 miles)
- Price region
- South East
- 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.
Survey and findings
Humidity and surface readings, existing fans flow-tested, and a written list of causes and fixes.
Fan upgrades
Weak or loft-vented fans replaced and ducted outside, with humidity control.
Guide prices in Portswood
| Work | Guide price |
|---|---|
| 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 |
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £380–£650 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.
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
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). Serious damp and mould is a hazard under the Housing Health and Safety Rating System, and social landlords now have fixed timescales under Awaab's Law.
Questions from Portswood
How do I get a price for a condensation fix in Portswood?
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.
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.
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.
What area around Portswood do you work in?
All of Hampshire. Near Portswood that includes Southampton, Woolston, Eastleigh and Bishopstoke.
Do you cover Portswood and nearby?
Yes. We cover Portswood and nearby places including Southampton, Woolston, Eastleigh and Bishopstoke. Send your postcode and we will confirm.
Ask for a Portswood visit and we will test your existing fans before recommending anything.
Condensation and mould fixes near Portswood
More services in Portswood
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.