Condensation, mould and landlords, Mid Glamorgan
Indoor air quality surveys in Mid Glamorgan
CO2, humidity and particulates logged for a week, with plain-English findings, across Mid Glamorgan.
- From £140 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 Mid Glamorgan, including Pontypridd, Aberdare, Maesteg, Rhondda and Tonypandy. Prices use Wales rates. Servicing, testing and repair visits are charged, and we tell you the cost before booking.
Air quality surveys in Mid Glamorgan at a glance
- Area
- Mid Glamorgan, Wales
- Towns listed
- 14, largest Rhondda
- Postcode districts
- CF33, CF15, CF38, CF31, CF33 and CF45
- Price region
- Wales
- Survey
- Charged visit, price agreed first
What indoor air quality surveys 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.
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.
Before and after
Readings taken before and after a ventilation upgrade to show the difference.
Guide prices in Mid Glamorgan
| Work | Guide price |
|---|---|
| Home air quality check: CO2, humidity and temperature logged for 7 days (per home) | £140–£235 inc VAT |
| Workplace air quality survey: CO2, PM2.5, humidity, 7 days logged, written report (per survey) | £470–£1,125 + VAT |
Guide prices using Wales rates. Home prices include VAT at 20%; business prices exclude VAT. A guide price is not a quote: we confirm a fixed price in writing first.
Signs it is time to call us
- A new ventilation system that does not feel right
- A bedroom that feels stale in the morning
- Headaches or drowsiness in meeting rooms or classrooms
Rules in Wales
In Wales, ventilation follows the Welsh Approved Document F rather than the English version, with building control checking notifiable work. The Workplace (Health, Safety and Welfare) Regulations 1992 also apply, requiring sufficient fresh or purified air.
How the job runs
- Plan
- Place loggers
- Log
- Analyse
- Report
Towns we cover in Mid Glamorgan
- Rhondda
- Tonypandy
- Bridgend
- Merthyr Tydfil
- Coity
- Pontypridd
- Aberdare
- Maesteg
- Porthcawl
- Llantrisant
- Pyle
- Treharris
- Mountain Ash
- Aberkenfig
Questions about indoor air quality surveys in Mid Glamorgan
Is the survey free in Mid Glamorgan?
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.
Do you measure particulates?
Workplace surveys include PM2.5 particulates; homes can have them added on request.
What is a good CO2 level indoors?
Outdoor air is around 400 to 450 parts per million; indoor levels that stay well below about 1,000 ppm usually indicate reasonable ventilation for the people in the room, while sustained levels much higher suggest it needs improving.
Which rules apply to ventilation in Mid Glamorgan?
In Wales, the Welsh Government's own Approved Document F (2022 edition) applies to ventilation in homes, with a new edition taking effect on 4 March 2027. Rented homes must be fit for human habitation under the Renting Homes (Wales) Act 2016, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Which towns in Mid Glamorgan do you cover?
All of Mid Glamorgan, including Pontypridd, Aberdare, Maesteg, Rhondda and Tonypandy. If your town is not listed, send the postcode and we will confirm.
Other services in Mid Glamorgan
Get a guide price in two minutes
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