Specialist service
Damp Proofing in South Wales
Identify the cause of damp and provide the right treatment.
What the work involves
Rising, penetrating and below-ground damp treated at the cause.
Every job starts with a free survey so we can establish whether it is rising damp, penetrating damp or moisture sitting on cold surfaces.
We inject a silicone barrier for rising damp, or apply epoxy resin tanking where a wall needs sealing completely, then make the walls good ready for decoration.
- Silicone DPC barrier injection
- Epoxy resin tanking systems
- Walls made good before decorating
- Free survey and written quote
What causes it
The causes we identify on damp proofing jobs
Rising damp
One of the three damp types we identify and resolve, treated with an injected silicone horizontal barrier forming a DPC.
Penetrating damp
Moisture entering the structure, resolved with damp proofing methods refined over decades of hands-on work.
Condensation-related damp
Diagnosed during the survey and addressed through insulation and ventilation rather than damp proofing.
Our process
How the work is carried out, step by step
Need advice on damp proofing?
Surveys and advice are free.
The detail
What we can confirm about CPH Interiors
- Established in 1984 — over 40 years of experience in damp proofing and home improvements
- Free, no-obligation surveys and advice
- Silicone horizontal barrier injection to form a DPC
- Epoxy resin tanking system, fully sealed before any plaster is added
- NVQ Levels in most skills and CSCS registered
- DBS-checked annually
- 100% positive feedback on My Builder, also listed on Rated People
- Discounts for verified NHS, Ambulance, Fire Brigade and Police staff (excluding management)
- Serving Tonyrefail, Bridgend, Cardiff and South Wales
- Payments accepted by cash, BACS and cheque
Our other specialisms
All specialist services