Sunbury-on-Thames, Surrey
Condensation and mould ventilation fixes in Sunbury-on-Thames
We find why the house is wet and fix the ventilation, rather than painting over mould. Covering Sunbury-on-Thames and KT12, TW16 and TW17.
- From £490 inc VAT per fan
- Free survey
Mould in a Sunbury-on-Thames bedroom or bathroom is almost always a ventilation problem first.
Work in Sunbury-on-Thames follows the rules for England and finishes with a written record of what was fitted and how it was set up.
Condensation and mould fixes in Sunbury-on-Thames at a glance
- Town
- Sunbury-on-Thames, Surrey
- Postcode districts
- KT12, TW16 and TW17
- Nearby
- Walton-on-Thames (1 mile), Shepperton (2 miles) and West Molesey (2 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
What the work 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.
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 Sunbury-on-Thames
| Work | Guide price |
|---|---|
| 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 |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £490–£825 inc VAT |
South East rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- 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
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.
Questions from Sunbury-on-Thames
Is the survey free in Sunbury-on-Thames?
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.
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.
Will a dehumidifier fix condensation?
A dehumidifier helps in one room but treats the symptom. Fixing the extract in the wet rooms, and adding whole-home ventilation where needed, removes moisture before it spreads.
How do I get a price for a condensation fix in Sunbury-on-Thames?
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.
What area around Sunbury-on-Thames do you work in?
All of Surrey. Near Sunbury-on-Thames that includes Walton-on-Thames, Shepperton, West Molesey and Hampton.
Book a condensation survey in Sunbury-on-Thames and get a written list of causes and fixes.
Condensation and mould fixes near Sunbury-on-Thames
More services in Sunbury-on-Thames
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