Where we work
What we find, where.
Welsh building stock is regional, and so is the way it fails. Thirty miles changes the wall, the weather and the diagnosis.
Terraced stone, cement render, steep ground
Rhondda, Cynon, Taf, Merthyr, Caerphilly, Blaenau Gwent. Ex-colliery terraces of rubble stone bedded in lime, almost universally re-rendered in cement, built into hillsides where ground water moves across the site rather than down it. Raised external ground at the rear and cracked render at the front is the recurring pair.
Victorian and Edwardian terraces with cellars
Brick and stone terraces with bay windows, suspended floors and cellars. Bay roofs and their flat junctions leak, cellar vents get blocked or built over, and a cellar with standing water below a leaking downpipe is close to ideal conditions for dry rot.
Rendered solid walls, full exposure
Driven rain off the Atlantic on elevations with nothing in front of them for three thousand miles. Render cracks and junction failures matter far more here than anywhere inland, and the west and south-west elevations do nearly all of the suffering.
Slate, stone and the wettest ground in Britain
Parts of Eryri take among the highest rainfall anywhere in the United Kingdom. Slate-hung and rendered solid stone walls, often with slate floors laid directly on the ground. Ventilation paths and a wall's ability to dry matter more than any chemical treatment ever will.
Rural stone cottages
Thick rubble walls that hold water for weeks after a wet spell, earth or slab solums with minimal cross-ventilation, and modern impermeable renders and floor slabs added in good faith that sealed the building shut. Sub-floor timber decay is the common find.
Mixed stock, brick and cavity
Sandstone and brick terraces alongside interwar and post-war cavity housing, where the failure is usually a bridged cavity, mortar droppings on wall ties, or an extension or conservatory that raised ground levels above the damp-proof course.
Towns and cities we cover
- Cardiff
- Swansea
- Newport
- Wrexham
- Barry
- Caerphilly
- Bridgend
- Neath
- Port Talbot
- Merthyr Tydfil
- Rhondda
- Pontypridd
- Cwmbran
- Ebbw Vale
- Llanelli
- Carmarthen
- Haverfordwest
- Pembroke
- Aberystwyth
- Cardigan
- Brecon
- Newtown
- Welshpool
- Bangor
- Caernarfon
- Porthmadog
- Llandudno
- Colwyn Bay
- Rhyl
- Mold
- Flint
- Holyhead
Anywhere in Wales
Tell us the postcode.
We travel across Wales and plan west coast and island work in batches — ask about scheduling.