Condensation and mould ventilation fixes in Lancashire

For tenants, landlords and homeowners in Lancashire, the common question is why the mould keeps coming back.

We carry out condensation and mould ventilation fixes across Lancashire, including Preston, Burnley, Blackburn, Blackpool and Rossendale. Prices use North West rates. Surveys for new installations are free on the UK mainland, with a written quote afterwards.

Condensation & mould in Lancashire at a glance

Area: Lancashire
Towns listed: 29, largest Preston
Postcode districts: PR5, PR25, BB1, BB5, PR6 and PR7
Price region: North West
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. Ventilation is usually the biggest part of the cure, but not the only part.

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.

Survey and findings

Humidity and surface readings, existing fans flow-tested, and a written list of causes and fixes.

Guide prices in Lancashire

Condensation and mould ventilation fixes guide prices in Lancashire
Work	Guide price
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
Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan)	£330–£575 inc VAT
Condensation and mould ventilation survey with written findings (per home)	£120–£215 inc VAT

These ranges use our North West rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.

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 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.

How the job runs

Survey
Find the cause
Recommend
Fix
Check back

Towns we cover in Lancashire

Questions about condensation and mould ventilation fixes in Lancashire

Which rules apply to ventilation in Lancashire?

In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.

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.

Which towns in Lancashire do you cover?

All of Lancashire, including Preston, Burnley, Blackburn, Blackpool and Rossendale. If your town is not listed, send the postcode and we will confirm.

Are prices different in Lancashire?

Our guide prices are adjusted by region. In Lancashire we use North West rates, so 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.

If we fit the fix, the Lancashire survey is free.