Condensation and mould ventilation fixes in East Sussex

In East Sussex homes, black mould usually comes down to the same few causes: weak fans, loft-vented ducts and no background ventilation.

Across East Sussex the job is priced the same way wherever you are: what is fitted, how long it takes and how far we travel. Towns we cover include Hove, Bexhill-on-Sea, Hailsham, Seaford and Rottingdean.

Condensation & mould in East Sussex at a glance

Area: East Sussex
Towns listed: 15, largest Brighton
Postcode districts: BN41, BN2, BN9, BN8, TN22 and BN7
Price region: South East
Survey: Free survey (UK mainland)

What the work involves

Mould needs that damp surface to grow. 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.

Fan upgrades

Weak or loft-vented fans replaced and ducted outside, with humidity control.

Guide prices in East Sussex

Condensation and mould ventilation fixes guide prices in East Sussex
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
Condensation and mould ventilation survey with written findings (per home)	£140–£250 inc VAT

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

When to get it looked at

Water running down windows on cold mornings
Musty smell in bedrooms or wardrobes
Peeling paint or wallpaper in bathrooms

Rules 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.

How the job runs

Survey
Find the cause
Recommend
Fix
Check back

Towns we cover in East Sussex

Questions about condensation and mould ventilation fixes in East Sussex

Are prices different in East Sussex?

Our guide prices are adjusted by region. In East Sussex we use South East rates, so 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.

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 East Sussex?

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.

Which rules apply to ventilation in East Sussex?

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.

Ask for an East Sussex visit and we will test your existing fans before recommending anything.