Indoor air quality surveys in Clwyd

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.

Every job in Clwyd gets a written quote before it starts and a commissioning record when it finishes. We cover Flint, Rhyl, Hawarden, Rhosllannerchrugog and Wrexham and the villages around them.

Air quality surveys in Clwyd at a glance

Area: Clwyd, Wales
Towns listed: 13, largest Wrexham
Postcode districts: LL17, LL18, CH4, CH5, LL11 and LL13
Price region: Wales
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.

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.

Spot checks

Readings taken during a single visit, where a quick answer is enough.

Guide prices in Clwyd

Indoor air quality surveys guide prices in Clwyd
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

These ranges use our Wales rates. Home prices include VAT at 20%; business prices exclude VAT. You get a fixed written price before any work is booked.

Signs it is time to call us

Headaches or drowsiness in meeting rooms or classrooms
Condensation and mould with no obvious cause
You want evidence before spending money on ventilation

Rules in Wales

Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. 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 Clwyd

Questions about indoor air quality surveys in Clwyd

Which towns in Clwyd do you cover?

All of Clwyd, including Flint, Rhyl, Hawarden, Rhosllannerchrugog and Wrexham. If your town is not listed, send the postcode and we will confirm.

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.

What humidity should a home be?

Relative humidity of roughly 40 to 60 percent is comfortable for most homes. Readings that sit above 70 percent for long periods make condensation and mould much more likely.

Are prices different in Clwyd?

Our guide prices are adjusted by region. In Clwyd we use Wales rates, so home air quality check: CO2, humidity and temperature logged for 7 days is typically £140 to £235 inc VAT per home.

Is the survey free in Clwyd?

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.