Type C Cavity Drainage Contractors

When it comes to managing groundwater in basements and below-ground structures, Type C waterproofing, also known as cavity drainage, offers a smart, reliable, and highly adaptable solution. Instead of trying to block water entirely, this system redirects it safely through a dedicated drainage network, keeping spaces dry, protected, and habitable.

At Refresh PSC, we install leading cavity drainage membranes and sump pump systems from trusted brands like Oldroyd, Safeguard, and Delta. Our systems are backed by professional guarantees and installed to BS8102:2009 standards for long-term peace of mind.

Key Benefits of Type C Waterproofing:

• Actively manages water ingress:
  Channels groundwater into a controlled drainage system rather than attempting to repel it at the surface.
• Ideal for basements under pressure:
  Suitable where hydrostatic pressure is present and other systems may fail.
• Flexible installation:
  Cavity drain membranes can be fitted to both walls and floors—internally or externally.
• Low risk of failure:
  Unlike barrier systems, Type C drainage reduces the risk of leaks caused by structural cracks or defects.
• Compatible with all property types:
  Effective across a range of structures and foundation designs.
• Maintenance-accessible:
  Systems are designed to allow ongoing maintenance and cleaning access to prevent blockage.
• Proven performance:
  Provides effective protection with a 10-year guarantee when professionally installed.
• Discreet and non-intrusive:
  The system remains hidden behind internal finishes, preserving the appearance and use of space.

Our CSSW-accredited team ensures every Type C cavity drainage system is tailored to the specific structure, water pressure, and intended use of your basement, delivering expert results you can trust.