Paint lifting away from a damp wall before treatment

Damp proofing · Condensation control · Insulation · Ventilation

Damp, condensation, insulation and ventilation specialists

Free surveys across South Wales. Established 1984.

Experienced team

40+ years on the tools.

Free surveys

No-obligation advice.

Damp & condensation

Insulation and ventilation too.

South Wales

Based in Tonyrefail.

Our four specialisms

What we do

Peeling paint on a damp wall before treatment01

Damp Proofing

Identify the cause of damp and provide the right treatment.

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Window with condensation on the glass02

Condensation Control

Practical solutions to reduce moisture and improve airflow.

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Interior wall prepared for insulation and finishing03

Insulation

Improve warmth, comfort and energy efficiency.

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Wall fittings and outlets inside a property during works04

Ventilation

Improve airflow and help control excess moisture.

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Expert damp proofing

Rising, penetrating or condensation-related

We find the cause first, then treat it — silicone DPC injection for rising damp, or epoxy resin tanking where a wall needs sealing. Condensation is usually poor insulation or ventilation, and the survey is free either way.

Wall stripped back to exposed brickwork ready for tankingDamp and mould damage in the corner of a room

What to look for

Common signs

  • Peeling paint or wallpaper
  • Tide marks on walls
  • Black mould
  • Musty smell
  • Cold, streaming windows
  • Damaged plaster

Our methods

Matched to the cause

Silicone DPC injection

A horizontal barrier against rising damp.

Epoxy resin tanking

Seals the wall before plastering.

Insulation

Warmer surfaces, less condensation.

Ventilation

Moist air removed at source.

Questions

Common questions

“Had CPH interiors to sort my damp problems, very professional will recommend to anyone”
Charlotte Jones · via Google
Do you charge for a survey?
No. Surveys and advice are free.
What if I can fix it myself?
We will tell you, free of charge.
Which areas do you cover?
Tonyrefail, Porth, Pontypridd, Bridgend, Cardiff and South Wales.
How experienced is the team?
Established 1984, CSCS registered and DBS checked annually.
Is the plastering made good?
Yes — walls are finished ready for decoration.

Think you may have a damp or condensation problem?

Surveys and advice are free.

Call CPHFree Survey