Condensation, mould and landlords, West Sussex
Indoor air quality surveys in West Sussex
CO2, humidity and particulates logged for a week, with plain-English findings, across West Sussex.
- From £160 inc VAT per home
- Charged visit, price agreed first

An indoor air quality survey measures how fresh and how damp the air in a building really is, over days rather than minutes. We place loggers that record CO2, humidity and temperature (and particulates in workplaces), then explain what the readings mean and what ventilation changes would help.
We carry out indoor air quality surveys across West Sussex, including Haywards Heath, Chichester, Burgess Hill, Crawley and Worthing. Prices use South East rates. This is a charged visit. We confirm the cost in writing before we book it.
Air quality surveys in West Sussex at a glance
- Area
- West Sussex
- Towns listed
- 16, largest Crawley
- Postcode districts
- PO21, BN16, BN17, RH12, RH13 and RH15
- Price region
- South East
- Survey
- Charged visit, price agreed first
What the work involves
CO2 is a practical indicator of whether a room is getting enough fresh air for the number of people in it: levels that climb steadily through a meeting or a night in a bedroom point to under-ventilation. Humidity readings show whether moisture is being removed or lingering long enough to cause condensation and mould. Surveys are useful before spending money: they show whether a problem is constant or happens at particular times, which rooms are worst, and whether an existing system is doing its job.
Spot checks
Readings taken during a single visit, where a quick answer is enough.
Home survey
Loggers in bedrooms, living areas and wet rooms for 7 days, with a written summary.
Workplace survey
CO2, humidity, temperature and particulates in offices, classrooms or meeting rooms.
Guide prices in West Sussex
| Work | Guide price |
|---|---|
| Home air quality check: CO2, humidity and temperature logged for 7 days (per home) | £160–£270 inc VAT |
| Workplace air quality survey: CO2, PM2.5, humidity, 7 days logged, written report (per survey) | £550–£1,325 + VAT |
These ranges use our South East rates. Home prices include VAT at 20%; business prices exclude VAT. You get a fixed written price before any work is booked.
When to get it looked at
- Condensation and mould with no obvious cause
- You want evidence before spending money on ventilation
- Staff complaints about stuffiness
Rules in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. Workplaces must also be ventilated with a sufficient quantity of fresh or purified air under the Workplace (Health, Safety and Welfare) Regulations 1992.
How the job runs
- Plan
- Place loggers
- Log
- Analyse
- Report
Towns we cover in West Sussex
- Crawley
- Worthing
- Bognor Regis
- Littlehampton
- Horsham
- Haywards Heath
- Chichester
- Burgess Hill
- East Grinstead
- Shoreham-by-Sea
- Lancing
- Rustington
- Broadfield
- Hurstpierpoint
- Barnham
- Selsey
Questions about indoor air quality surveys in West Sussex
Are prices different in West Sussex?
Our guide prices are adjusted by region. In West Sussex we use South East rates, so home air quality check: CO2, humidity and temperature logged for 7 days is typically £160 to £270 inc VAT per home.
How long do the loggers stay?
Usually around 7 days, so the readings cover normal weekday and weekend use.
Will you sell me a system after the survey?
Only if the readings show you need one. The report sets out the cheapest effective options.
Is the survey free in West Sussex?
This is a charged visit because it is servicing, testing or repair work. We tell you the cost before booking. Surveys for new installations on the UK mainland are free.
Which rules apply to ventilation in West 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.
Other services in West Sussex
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