Mould, Damp & Condensation Removal in Newport and Surrounding Areas

 Blaenau Gwent, Torfaen and Monmouthshire

Newport and the surrounding areas of Blaenau Gwent, Torfaen and Monmouthshire face the perfect storm for mould growth: a humid maritime climate, persistent South Wales rainfall and a substantial stock of older, under-insulated housing. Victorian terraced homes, traditional stone cottages and mid-century flats throughout the region 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 Newport’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 Newport and the Gwent valleys, 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 Cardiff Properties

Properties throughout Newport, Blaenau Gwent, Torfaen and Monmouthshire battle recurring damp and mould problems each winter, particularly in older homes where poor insulation meets South Wales’ high humidity. Without adequate ventilation, everyday moisture from cooking, showering and drying laundry has nowhere to go—settling on cold walls and windows as condensation before rapidly developing into black mould patches.

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 Newport

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 Newport, Blaenau Gwent, Torfaen and Monmouthshire 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

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

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

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. 

 

Metal retrofit roofing system installed by PRBGE on a commercial building in Cardiff to cut kW energy bills

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 Newport

We provide mould removal, damp and condensation solutions throughout Newport and the wider Gwent region, including Blaenau Gwent, Torfaen and Monmouthshire. Whether you’re a homeowner, landlord or business owner in Newport city centre, in nearby towns like Cwmbran, Caerleon or Chepstow, or in valley communities such as Pontypool, Abertillery and Blaenavon, PRBGE can arrange local surveys and treatments tailored to your property.

Why choose PRBGE in Newport?

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: Newport 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 Newport and surrounding areas?

We understand that mould and damp issues need urgent attention, especially during Newport’s wet winter months. PRBGE typically arranges same-week surveys across Newport, Blaenau Gwent, Torfaen and Monmouthshire, with most remediation work scheduled within days of your initial assessment. Emergency callouts can be arranged for severe cases affecting health or property safety.

What causes black mould in Newport homes?

Newport’s humid maritime climate, combined with frequent South Wales rainfall, creates ideal conditions for mould growth. Common causes include:

  • Poor ventilation in older Victorian terraces and stone cottages
  • Condensation from everyday activities (cooking, showering, drying laundry)
  • Cold internal surfaces in properties with solid walls and limited insulation
  • Rising damp in older buildings without damp-proof courses
  • Penetrating damp from roof leaks, blocked gutters or damaged pointing
  • High humidity during prolonged wet periods in the Gwent valleys

Do you cover Cwmbran, Pontypool and Ebbw Vale?

Yes, absolutely. PRBGE provides mould removal and damp surveys throughout:

  • Newport city centre and surrounding suburbs
  • Torfaen – Cwmbran, Pontypool, Blaenavon
  • Blaenau Gwent – Ebbw Vale, Abertillery, Tredegar, Brynmawr
  • Monmouthshire – Chepstow, Caldicot, Abergavenny, Usk, Monmouth
  • All surrounding villages and rural communities

If you’re anywhere in the Gwent region, we can help.

How much does mould removal cost in Newport?

Costs vary 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–£800, while whole-property remediation with ventilation upgrades can run higher. PRBGE provides free, no-obligation surveys and quotes for all Newport-area properties, so you’ll know exactly what’s involved before any work begins.

Is black mould dangerous to my family’s health?

Yes, black mould (Stachybotrys chartarum) and other mould species can pose serious health risks, particularly to:

  • Children and babies with developing respiratory systems
  • Elderly residents with weakened immunity
  • People with asthma, allergies or existing lung conditions
  • Anyone with compromised immune systems

Common symptoms include persistent coughing, wheezing, headaches, skin irritation and worsening asthma. Professional removal is essential to protect your family’s wellbeing.

Can I remove mould myself, or do I need professionals?

Small patches of surface mould (less than 1 square metre) on non-porous surfaces can sometimes be cleaned with household products. However, professional removal is essential when:

  • Mould covers large areas or multiple rooms
  • It keeps returning after cleaning
  • It’s growing on porous materials (plaster, wood, fabric)
  • There’s a strong musty smell indicating hidden growth
  • The underlying damp or condensation problem hasn’t been resolved
  • You or your family are experiencing health symptoms

PRBGE tackles both the visible mould and the root cause to prevent recurrence.


Will mould come back after treatment?

Not if the underlying moisture problem is properly addressed. PRBGE doesn’t just remove visible mould—we identify and fix the root cause, whether that’s poor ventilation, rising damp, leaks or condensation buildup. Our bespoke treatment plans for Newport properties include:

  • Moisture diagnostics to pinpoint the source
  • Ventilation improvements (PIV, MEV, extract fans)
  • Structural repairs (roofing, pointing, damp-proofing)
  • Aftercare advice to prevent future issues

When done properly, mould shouldn’t return.

Do you work with landlords and letting agents in Newport?

Yes, we work extensively with landlords, letting agents and housing associations across Newport and Gwent. We understand the legal responsibilities around damp and mould in rental properties and can provide:

  • Fast turnaround surveys to meet compliance deadlines
  • Detailed reports for tenants, councils or insurance claims
  • Flexible scheduling to minimize tenant disruption
  • Preventative maintenance plans for your rental portfolio

Contact us to discuss your specific requirements.