Mould Removal in Cardiff — Verified Local Specialists

Compare verified mould removal, damp, and ventilation contractors covering Cardiff. All listings manually reviewed.

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There are 14 verified mould removal specialists covering Cardiff on MouldPros. Every listing is manually reviewed before it goes live — landlords, homeowners, and estate agents can contact specialists directly, with no commission and no middlemen.

Most mould in Cardiff is condensation. Removal treats the growth; fixing the ventilation, heating or insulation that caused it is what stops it coming back. See condensation control specialists in Cardiff →

Mould & Damp Specialists Covering Cardiff

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Also covering Cardiff

The Veteran Survey Company (Trading name of The Veteran Building Company Ltd

Bridgend, wales · Cf329bz

The Veteran Survey Company is a specialist building surveying practice providing professional damp, mould, condensation and building pathology investigations across South Wales, including Bridgend, Cardiff, Swansea, Newport, the Vale of Glamorgan, Bristol and surrounding areas. Our approach is diagnosis-led. Rather than simply treating visible mould or recommending generic damp-proofing solutions, we investigate the underlying building defect or environmental condition responsible for the problem. Our surveys can investigate: • Damp and mould growth • Condensation and high internal humidity • Penetrating damp and water ingress • Suspected rising damp • Defective rainwater goods, roofing and external fabric • Thermal bridging and cold surfaces • Inadequate ventilation and extraction • Plumbing and drainage-related moisture • Timber moisture and associated deterioration • Insulation and building-fabric defects Investigations may incorporate calibrated moisture measurement, thermal imaging, humidity and environmental assessment, visual building pathology inspection and, where appropriate, inspection of roofs and other difficult-to-access areas. The Veteran Survey Company is RPSA accredited and PCA qualified, with specialist training and qualifications in damp investigation and building pathology above this. Our surveys are undertaken by qualified building surveyors with clear written reports explaining the probable cause of the problem, supporting evidence and practical recommendations for remediation. We work with homeowners, landlords, letting agents, property managers, housing providers and commercial clients. Where remedial work is subsequently required, we also have access to experienced in-house building, roofing and property-maintenance expertise. This means recommendations can be assessed for their practicality while keeping the initial investigation focused on identifying the cause rather than simply selling a treatment. Our objective is straightforward: diagnose the building properly, explain why the problem is occurring and provide proportionate recommendations that address the cause rather than just the symptoms.

✓ CSRT✓ Insured✓ Awaab's Law
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📍 Covers Cardiff (based in Bridgend)

The Mould Company

Brighouse, yorkshire · HD6 1NA

At The Mould Company, we are committed to delivering a highly efficient, end-to-end service you can rely on. Every client is supported by a dedicated customer service team assigned to their specific area or council, ensuring clear communication and regular updates throughout the entire process. With years of experience in property maintenance and specialist cleaning, we understand the importance of a thorough property inspection. That’s why we’ve developed our own in-house inspection reports, which can be tailored to meet your specific needs and requirements. Our innovative mould treatment methods are designed not only to eliminate mould effectively but also to protect your property from future issues—offering long-term peace of mind and healthier living environments.

✓ Insured✓ Awaab's Law
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📍 Covers Cardiff (based in Brighouse)

Damp & Mould in Cardiff’s Housing Stock

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.

Nationally, the English Housing Survey 2023–24 found that 9% of private rented dwellings in England have damp — around three times the rate in owner-occupied homes. English Housing Survey 2023–24 ↗

Landlords and tenants in Cardiff can also report unresolved damp and mould directly to the council: council damp & mould reporting page →

Awaab’s Law compliance in Cardiff

In force for social housing in England since 27 October 2025. The extension to private rentals is legislated under the Renters' Rights Act 2025, with extension to private landlords legislated under the renters' rights act 2025 — commencement date subject to consultation, not yet confirmed. Once it lands, landlords in Cardiff will need to investigate significant hazards within 10 working days (24 hours for emergencies) and complete safety works within 5 working days of the investigation concluding.

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Mould Removal Near Cardiff

Frequently Asked Questions About Mould Removal in Cardiff

How much does mould removal cost in Cardiff?
Costs vary with the extent of growth and treatment required. Surface mould treatment in a single room typically costs £150–£400 in Cardiff. Extensive remediation involving plaster removal and replacement can cost £800–£3,000+. An independent damp survey (£200–£400) is the recommended starting point to get an accurate scope of works before committing to a price.
What are my legal obligations as a landlord in Cardiff under Awaab's Law?
In force for social housing in England since 27 October 2025. For private landlords in Cardiff, the extension is a later phase of the Renters' Rights Act 2025 rollout — extension to private landlords legislated under the renters' rights act 2025 — commencement date subject to consultation, not yet confirmed. Once in force, it will require investigating significant hazards within 10 working days (24 hours for emergencies) and completing safety works within 5 working days of the investigation concluding.
How quickly can a mould specialist respond in Cardiff?
Response times vary by contractor and current workload. Many MouldPros-listed specialists based in or covering Cardiff can arrange an initial assessment within 3–7 days; several offer priority appointments for landlords working to a compliance deadline. Confirm turnaround directly with the contractor when you enquire.
Is it condensation or damp in my Cardiff rental property?
Condensation mould — caused by moisture in the air (cooking, showers, drying laundry indoors) meeting a cold surface — is the most common issue in UK rental properties and the one most easily mistaken for "damp". 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. A professional survey is the reliable way to tell condensation, rising damp, and penetrating damp apart, since the fix for each is different.

Own Your Home in Cardiff? Mould Removal FAQs

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If you own your home in Cardiff rather than rent, mould is a health and maintenance issue rather than a legal compliance one — but the causes and fixes are the same. MouldPros-listed specialists covering Cardiff work with homeowners as well as landlords and letting agents.

Is mould in my home in Cardiff a health risk?
Household mould, including black mould, can affect respiratory health — particularly for children, older people, and anyone with asthma or a weakened immune system. Occasional light surface mould in a bathroom is common and usually low-risk once cleaned, but persistent or spreading mould, or mould affecting a bedroom or living area, is worth having assessed rather than just wiped away repeatedly.Source: UKHSA / GOV.UK ↗
Can I remove mould myself, or do I need a professional in Cardiff?
Small, isolated patches of surface mould on non-porous surfaces (tiles, glass, painted wood) can often be cleaned yourself with appropriate gloves, ventilation, and a mould-specific product. Mould covering a large area, mould that keeps returning after cleaning, or mould linked to a leak, damp patch, or condensation problem needs a professional inspection — treating the surface without fixing the underlying moisture source means it will come back.
What causes mould in a home I own, and is it something I've done wrong?
Mould needs moisture to grow, which in owned homes usually comes from condensation (cooking, showers, or drying laundry indoors without ventilation), a leak, rising damp in older properties, or penetrating damp through the building fabric. It's rarely about cleanliness — even well-kept homes get mould if ventilation or a building defect lets moisture build up. A specialist survey identifies the actual cause rather than guessing.
Will home insurance cover mould damage in Cardiff?
Usually only if the mould results from a sudden, insured event — such as a burst pipe or storm damage — reported promptly. Most standard home insurance policies exclude mould caused by gradual issues like long-term condensation, rising damp, or lack of maintenance, since insurers treat these as preventable. Check your policy wording and speak to your insurer before assuming cover applies.
How do I stop mould coming back after treatment in Cardiff?
Address the moisture source first — improve ventilation (extractor fans, trickle vents, opening windows after showers or cooking), fix any leaks or damp ingress, and avoid drying laundry on radiators in unventilated rooms. A specialist can advise on longer-term fixes such as positive input ventilation (PIV) systems or damp-proofing where the cause is structural rather than behavioural.