Condensation and mould ventilation fixes
We find why the house is wet and fix the ventilation, rather than painting over mould.
From £445 inc VAT per fan
Condensation, mould and landlords
Fixes for condensation and black mould, upgrades for rental homes and HMOs, social housing programmes and air quality surveys.
Fixes for condensation and black mould, upgrades for rental homes and HMOs, social housing programmes and air quality surveys.
Ventilation for landlords and letting agents
Tested fans and PIV for rental homes and HMOs, with records for your property file.
From £1,495 inc VAT per property
Social housing ventilation programmes
Survey-led ventilation upgrades across stock, with per-home records and tenant liaison.
From £650 + VAT per home
Indoor air quality surveys
CO2, humidity and particulates logged for a week, with plain-English findings.
From £145 inc VAT per home
Guide prices
| Work | Guide price |
|---|---|
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £445–£745 inc VAT |
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £795–£1,395 inc VAT |
| Rental upgrade: PIV unit plus two humidity-controlled extract fans (typical 2 to 3 bed) (per property) | £1,495–£2,695 inc VAT |
| Condensation and mould ventilation survey with written findings (per home) | £125–£225 inc VAT |
| Social housing ventilation upgrade, per home (survey-led PIV or dMEV programme) (per home) | £650–£1,450 + VAT |
| Condensation and mould ventilation survey with written findings (per home) | £125–£225 inc VAT |
| Home air quality check: CO2, humidity and temperature logged for 7 days (per home) | £145–£245 inc VAT |
| Workplace air quality survey: CO2, PM2.5, humidity, 7 days logged, written report (per survey) | £495–£1,195 + VAT |
Guide prices using West Midlands (our baseline) rates. Home prices include VAT at 20%; business prices exclude VAT. A guide price is not a quote: we confirm a fixed price in writing first.
Questions people ask
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.
Is a landlord responsible for condensation and mould?
A landlord is responsible for the condition of the property, including adequate ventilation and heating, and serious damp and mould can be a hazard under housing law. Tenants also have to use the home reasonably, but ventilation that works without effort removes most disputes.
What does Awaab's Law require social landlords to do?
Awaab's Law requires social landlords in England to investigate potential hazards within set timescales, make homes safe from significant damp and mould within 5 working days of the investigation, and deal with emergency hazards within 24 hours, with more hazards added from 30 November 2026.
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