South West, Port Talbot , Neath and Bridgend.
Swansea and the surrounding areas of Neath Port Talbot, the Gower Peninsula and nearby Carmarthenshire face the perfect storm for mould growth: a humid coastal climate, persistent South Wales rainfall and a substantial stock of older, under-insulated housing. Victorian terraced homes in Swansea city centre, traditional stone cottages across Gower and mid-century builds in Neath and Port Talbot typically feature solid walls, minimal cavity insulation and inadequate ventilation—leaving cold internal surfaces vulnerable to condensation buildup.
When everyday moisture from cooking, showering, laundry and even breathing meets these cold surfaces during Swansea’s long, damp winters, it quickly transforms into persistent black mould, water stains and musty indoor air. Left untreated, these conditions threaten both property structure and respiratory health.
PRBGE delivers specialist mould surveys, precision moisture diagnostics and targeted removal across Swansea and West Wales, providing lasting solutions that protect your home’s fabric and your family’s wellbeing throughout the wet Welsh winter months.
Common damp and mould issues in Swansea Properties
Every property is different, so we don’t offer one-size-fits-all “quick fixes”. Instead, PRBGE designs tailored treatment plans for homes, rental properties and commercial buildings across Swansea, Neath Port Talbot, Gower and Carmarthenshire that tackle both the visible mould and the underlying moisture problem, using a mix of professional remediation, condensation control, ventilation upgrades and targeted building repair where needed.
Problems we commonly see in local homes, rentals and business properties include:
- Persistent black mould on bedroom and bathroom walls, window reveals and ceilings.
- Condensation running down windows and forming on cold external walls during colder months in both domestic and commercial spaces.
- Musty smells, peeling paint and damp patches on ceilings, chimney breasts and corners of rooms or offices.
- Repeated mould growth in bathrooms, staff facilities and shower rooms around tiles, grout, silicone and poorly ventilated areas.
- Health concerns such as coughing, wheezing, sneezing and headaches that may be aggravated by damp and mouldy indoor air, particularly for vulnerable occupants, tenants and staff.
Specialist Mould, Condensation and Damp Solutions for Swansea
Every property is different, so we don’t offer one-size-fits-all “quick fixes”. Instead, PRBGE designs tailored treatment plans for homes, rental properties and commercial buildings across Swansea, Neath Port Talbot, Gower and Carmarthenshire that tackle both the visible mould and the underlying moisture problem, using a mix of professional remediation, condensation control, ventilation upgrades and targeted building repair where needed.
Our specialist services in your area include:
Professional mould removal & remediation
Safe removal of black mould and other contamination using industry‑approved methods, localised containment and professional‑grade treatments that go beyond basic household cleaners.
Condensation control surveys
Detailed assessments of humidity levels, cold spots, ventilation and insulation to understand exactly why condensation and mould are forming in your Cardiff property.
Ventilation systems
Installation and upgrading of modern mechanical ventilation, including Positive Input Ventilation units, heat‑recovery systems and high‑performance extractor fans to keep air fresh and reduce moisture build‑up.
Roofing Retrofits and Water Ingress Protection
Identifying and tackling penetrating damp, leaks and water ingress through roofs, chimneys and external walls so that moisture is stopped at source, not just treated on the surface.
Areas we cover around Swansea
We provide mould removal, damp and condensation solutions throughout Swansea and the wider West Wales region, including Neath Port Talbot, the Gower Peninsula and parts of Carmarthenshire. Whether you’re a homeowner, landlord or business owner in Swansea city centre, in coastal areas like Mumbles, Gowerton or Penclawdd, or in nearby towns such as Neath, Port Talbot, Pontardawe and Llanelli, PRBGE can arrange local surveys and treatments tailored to your property.
Why choose PRBGE in Swansea?
Evidence‑based, not guesswork
We use specialist moisture assessments, detailed damp surveys and, where needed, thermal imaging to understand exactly what is causing mould and damp in your property.
Specialist mould and moisture experts
Dedicated to mould removal, condensation control and damp solutions across South Wales, rather than general cleaning or basic repairs.
Clear reports and structured plans
Homeowners, landlords and commercial clients receive clear explanations, written findings and a step‑by‑step remediation and prevention plan.
Long‑term Protection
We combine safe treatment with practical ventilation, roofing and moisture‑control improvements to help keep properties healthier and in line with modern expectations around damp and mould.
Transformations: Swansea Homes Before and After Professional Mould Remediation
Frequently Asked Questions
We have compiled a list of frequently asked questions to help you find instant answers to your queries
How quickly can PRBGE attend properties in Swansea and surrounding areas?
We understand that mould and damp issues need urgent attention, especially during Swansea’s wet coastal winters. PRBGE typically arranges same-week surveys across Swansea, Neath Port Talbot, Gower and Llanelli, with most remediation work scheduled within days of your initial assessment. Emergency callouts can be arranged for severe cases affecting health or property safety.
Do you cover Mumbles, Neath and Port Talbot?
Yes, absolutely. PRBGE provides comprehensive mould removal and damp surveys throughout the entire Swansea Bay region. We regularly work in Swansea city centre and all surrounding suburbs including Sketty, Uplands, Morriston and Mayhill. Our coverage extends across the beautiful Gower Peninsula taking in Mumbles, Gowerton, Penclawdd, Reynoldston and Port Eynon, as well as throughout Neath Port Talbot including Neath town, Port Talbot, Pontardawe, Briton Ferry and Resolven. We also serve the Carmarthenshire border areas including Llanelli, Gorseinon and Pontarddulais. If you’re anywhere in the Swansea Bay area or West Wales, we can help.
How much does mould removal cost in Swansea?
Costs vary significantly depending on the extent of mould growth, the underlying moisture problem and the size of your property. A typical single-room treatment might range from £300 to £800, while whole-property remediation with ventilation upgrades can run higher depending on complexity. Coastal properties in Gower or Mumbles may require additional work to address salt-air penetration issues. PRBGE provides free, no-obligation surveys and detailed quotes for all Swansea-area properties, so you’ll know exactly what’s involved and what it will cost before any work begins. We believe in transparent pricing with no hidden charges.
Is black mould dangerous to my family’s health?
Yes, black mould and other mould species can pose serious health risks that shouldn’t be ignored. The spores released by mould growth can trigger respiratory problems, allergic reactions and worsen existing conditions like asthma. Children and babies are particularly vulnerable as their respiratory systems are still developing, while elderly residents and anyone with compromised immune systems face heightened risks. Common symptoms include persistent coughing, wheezing, headaches, skin irritation, fatigue and worsening asthma attacks. In severe cases, prolonged exposure to toxic black mould can lead to more serious respiratory infections and chronic health issues. Professional removal is essential to protect your family’s wellbeing and create a healthy indoor environment.
Can I remove mould myself, or do I need professionals?
Small patches of surface mould covering less than one square metre on non-porous surfaces like tiles or glass can sometimes be cleaned with household products as a temporary measure. However, professional removal is essential when mould covers large areas or multiple rooms, keeps returning after cleaning, or is growing on porous materials like plaster, wood or fabric. If there’s a strong musty smell indicating hidden growth behind walls or under floors, or if the underlying damp or condensation problem hasn’t been identified and resolved, DIY treatments will only mask the problem temporarily. PRBGE tackles both the visible mould and the root cause through proper diagnostics, ensuring the problem doesn’t return and protecting your property value and your family’s health.
How long does mould removal take in Swansea properties?
Treatment times depend entirely on the severity and extent of the problem we discover during the initial survey. Single-room surface treatments typically take one to two days to complete, while whole-property remediation requiring drying, dehumidification and treatment of multiple rooms usually takes three to seven days. Major structural work involving damp-proofing installations, extensive ventilation system upgrades or roofing repairs can take one to two weeks depending on the scope. We’ll provide a clear, realistic timeline during your initial survey so you can plan accordingly, and we always aim to minimize disruption to your daily routine wherever possible.
Will mould come back after treatment?
Not if the underlying moisture problem is properly diagnosed and addressed. PRBGE doesn’t just remove visible mould and leave you hoping for the best. We identify and fix the root cause, whether that’s poor ventilation, rising damp, penetrating damp from roof leaks or blocked gutters, or condensation buildup from inadequate heating and airflow. Our bespoke treatment plans for Swansea properties include comprehensive moisture diagnostics to pinpoint the exact source, appropriate ventilation improvements such as PIV units, MEV systems or extract fans, necessary structural repairs including roofing work, repointing or damp-proofing installation, and detailed aftercare advice to prevent future issues. When the job is done properly with professional expertise, mould shouldn’t return.
Do you work with landlords and letting agents in Swansea?
Yes, we work extensively with landlords, letting agents and housing associations across Swansea and West Wales. We fully understand the legal responsibilities around damp and mould in rental properties following recent legislation changes, and we can provide fast turnaround surveys to meet compliance deadlines and satisfy tenant complaints. Our detailed reports are suitable for tenants, local councils or insurance claims, and we offer flexible scheduling to minimize tenant disruption. We also provide preventative maintenance plans for landlords managing rental portfolios across Swansea, helping you avoid costly emergency callouts and maintain your properties to the highest standards. Contact us to discuss your specific requirements and how we can support your letting business.
