Quick answer
1 verified condensation and ventilation specialist is based within 25 miles of Cardiff, and 7 more cover the area from further away. The nearest is The Veteran Survey Company (Trading name of The Veteran Building Company Ltd, based in Bridgend — about 19 miles from Cardiff.
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1 night of high condensation risk is forecast in the next 7 days, and 4 nights of moderate risk.
From the forecast overnight low and average humidity (Open-Meteo): colder, more humid nights make condensation on walls and windows more likely. It is a guide to the weather, not a reading of any particular home. What stops it →
Already have mould on the wall in Cardiff? See mould removal specialists in Cardiff →
Bridgend19 miles away
The Veteran Survey Company is a specialist building surveying practice providing professional damp, mould, condensation…
Covers Cardiff · based in Bolton149 miles away
We provide a complete, one-stop property service for landlords across the UK. From the initial enquiry and property…
Covers Cardiff · based in Monmouth31 miles away
Covers Cardiff · based in Ewloe Green, Flintshire118 miles away
Covers Cardiff · based in Glossop, Derbyshire145 miles away
Covers Cardiff · based in Preston, Lancashire159 miles away
Covers Cardiff · based in Brighouse, Calderdale164 miles away
At The Mould Company, we are committed to delivering a highly efficient, end-to-end service you can rely on. Every…
Covers Cardiff · based in Grange over sands, Cumbria188 miles away
We are a member of mould experts with a CPD certification in damp & Mould safe systems at work Tier 3
Cardiff has significant concentrations of Victorian and Edwardian terraced housing, particularly in inner suburbs such as Cathays and Grangetown, alongside a large student rental market.
High-density student HMOs in older terraces bring overcrowding-related condensation into focus alongside the fabric damp typical of solid-walled Victorian construction. The Public Services Ombudsman for Wales has upheld findings of significant failings by Cardiff Council in how it responded to some damp and mould complaints.
Awaab’s Law applies in England only. In Wales, the Renting Homes (Wales) Act 2016 makes fitness for human habitation, including freedom from damp and mould, an implied term of every occupation contract. Read the Awaab’s Law guide → Phase 2: excess cold →
General questions about mould and damp → read the FAQ · Condensation control costs · Landlord duties
Housing and flood figures are for the whole Cardiff local authority area, which is wider than the built-up area alone. Rainfall is the nearest Met Office station's reading.
Residential properties at medium or high risk (a 1% or greater chance in any year, with flood defences taken into account) as a share of households. A home at risk from both rivers and the sea counts in both.
Sources: ONS Census 2021; Natural Resources Wales flood risk assessment, 2025 (via StatsWales); Met Office climate averages.
If you cannot find the right firm in Cardiff, these are the closest places we list specialists for. Distances are in a straight line from the town or borough centre.