Damp Proofing in the Rhondda

The older terraced and stone-built homes throughout the Rhondda are especially prone to rising and penetrating damp. We diagnose the true cause and treat it at source for a dry, healthy home that stays that way.

Damp proofing in the Rhondda is one of the jobs we are called out to most often, and for good reason. The valleys are packed with characterful Victorian and Edwardian terraces built before modern damp-proof courses became standard, and decades of Welsh weather take their toll. Many of these homes were built straight onto the ground with solid stone walls and no cavity, so moisture from the earth wicks up through the structure and shows as tide marks, blown plaster and a musty smell at low level. We understand these properties inside out and know exactly how to put them right.

Every job begins with a proper damp survey rather than a quick guess. We use moisture meters and a trained eye to work out whether you are dealing with rising damp travelling up from the ground, penetrating damp finding its way through walls and roofs from outside, or condensation forming on cold internal surfaces. Each of these has a completely different cause and a completely different fix, so accurate diagnosis is the single most important step. Treating the wrong problem — or simply painting over mould — wastes your money and lets the damp come straight back.

Once we know what we are dealing with, we treat it for good. Our damp proofing work in the Rhondda includes installing chemical damp-proof courses, hacking off salt-contaminated plaster and re-rendering with a waterproof render and membrane, repairing the external defects letting water in, and improving ventilation where condensation is the culprit. We then replaster and prepare the walls so you are left with a clean, dry surface ready to redecorate, not a half-finished mess.

Black mould is more than an eyesore. The spores can affect breathing and are a real concern for children, older people and anyone with asthma or a chest condition. We remove mould safely and, crucially, fix the moisture problem feeding it so it does not simply return in a few months. A drier home is also a warmer, cheaper home to heat, because damp walls draw heat out of a room far faster than dry ones.

Landlords and letting agents across the Rhondda rely on us for compliant, well-documented damp works on both tenanted and void properties, helping them meet their obligations and protect their investment. Homeowners value our honest advice and tidy working. If damp or mould is affecting your home anywhere in the Rhondda, get in touch for a free damp survey and a clear, no-pressure quote from a fully insured local specialist.

What's included

  • Free damp survey and honest diagnosis
  • Rising and penetrating damp treatment
  • Damp-proof course installation
  • Waterproof re-rendering and replastering
  • Black mould removal and prevention
  • Ventilation and condensation control

Areas we cover near Tonypandy

Tonypandy Treorchy Porth Ferndale Treherbert Ystrad

Frequently asked questions

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