Loft condensation investigation in Cardiff
For a loft condensation investigation in Cardiff, tell us a little about the loft and we will arrange a visit that is priced before you book.
Postcode districts we cover here include CF10, CF11 and CF24. The local authority is Cardiff.

Where we work around Cardiff
Nearby, we also cover Penarth, Trowbridge (South Glamorgan), Barry and Cowbridge.
| Postcode districts | CF10, CF11, CF24, CF5 |
|---|---|
| Council area | Cardiff |
| County or area | South Glamorgan |
What is a loft condensation investigation?
We inspect the loft in daylight and by torch, measure moisture in the timbers, check the underlay, ventilation, insulation and the routes that let warm air in from the house, and look at the roof from outside. You get written findings with photos and a plain list of what we recommend, which may include work we do not offer. More about a loft condensation investigation.
- Loft inspection with moisture readings
- Written findings with photos
- Check of insulation, ventilation and air leaks
Why book with us in Cardiff
No pressure selling
You get everything in writing and decide in your own time.
Fixed written price
The price on the quote is the price you pay. It only changes if you change the job, or if we find something hidden, such as rot, and you agree the change in writing first.
Clear contact details
Your quote says who to call with questions before, during and after the work.
Written findings
You get photos and a plain list of what we found and what we would do about it.
How much does a loft condensation investigation cost in Cardiff?
This work is not an energy-saving material for VAT, so it is standard-rated if VAT applies. Where it is done alongside insulation, the quote shows each part separately.
Building regulations in Wales
Wales has its own Approved Document L. Insulation alone is not normally notified, but conversions need building control. How the rules work across the UK.
Questions about a loft condensation investigation in Cardiff
Can you visit Cardiff outside working hours?
Ask about early, late or weekend appointments when you get in touch, and we will tell you honestly what we can offer.
Can a landlord in Cardiff book work for a tenanted house?
Yes. We can arrange access with the tenant directly and send you photos once the work is finished.
Do you take on jobs outside Cardiff?
Yes. We also work in Penarth and Trowbridge (South Glamorgan) and elsewhere in South Glamorgan.
Can loft insulation cause condensation?
It can expose an existing problem: the loft gets colder, so the same moist air condenses more readily. Ventilation and sealing air leaks put it right.
Is condensation in my loft normal?
A little on the coldest nights can be normal, especially with old felt. Dripping, wet insulation or mould are signs to investigate.
