Condensation and mould ventilation fixes in County Durham

Mould in a County Durham bedroom or bathroom is almost always a ventilation problem first.

Every job in County Durham gets a written quote before it starts and a commissioning record when it finishes. We cover Billingham, Stanley, Consett, Darlington and Hartlepool and the villages around them.

Condensation & mould in County Durham at a glance

Area: County Durham
Towns listed: 14, largest Darlington
Postcode districts: TS19, DH1, DH6, DH2, DH3 and TS2
Price region: North East
Survey: Free survey (UK mainland)

What condensation and mould ventilation fixes involves

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. We tell you if that is what we find rather than selling a fan that will not help.

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 County Durham

Condensation and mould ventilation fixes guide prices in County Durham
Work	Guide price
New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan)	£410–£675 inc VAT
Positive input ventilation (PIV) loft unit, supplied and fitted (per home)	£725–£1,275 inc VAT
Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan)	£315–£550 inc VAT
Condensation and mould ventilation survey with written findings (per home)	£115–£205 inc VAT

Guide prices using North 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

Damp patches that dry out in summer and return in winter
Someone in the home with asthma or allergies made worse by damp
Black mould on window reveals, ceilings or behind furniture

Rules in England

English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. 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 County Durham

Questions about condensation and mould ventilation fixes in County Durham

Is the survey free in County Durham?

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.

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.

Which rules apply to ventilation in County Durham?

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.

Which towns in County Durham do you cover?

All of County Durham, including Billingham, Stanley, Consett, Darlington and Hartlepool. If your town is not listed, send the postcode and we will confirm.

Get a guide price online, then we confirm the plan on a free survey in County Durham.