Drill bit entering brick wall for chemical damp proof course injection, showing drilled holes and brick dust

Damp Proofing Guides

Damp proofing prevents groundwater and moisture entering buildings through walls and floors. A damp proof course (DPC) is a horizontal barrier in walls, typically at 150mm above ground level. Internal treatments manage moisture where external work is impractical. These guides explain how damp proofing works, when it's needed, and which method suits your situation.

All Damp Proofing Guides

DPC Meaning: What is a Damp Proof Course?

DPC acronym explained, why buildings need them, and when they became mandatory in the UK.

How to Treat Damp Walls Internally

Internal membranes, renovating plaster, and ventilation improvements for when external repair is impractical.

Damp Wall Treatment Options: Choosing the Right Fix

Comparison of treatments for rising damp, penetrating damp, and condensation. Which method works for each cause.

Damp Proof Plaster: When to Use Renovating Plaster

Salt-resistant plaster systems for damp walls. How they work, when to use them, and how to apply correctly.

Damp Proof Injection: How Chemical DPCs Work

Chemical DPC injection process, effectiveness, costs, and when it's the right choice for retrofitting damp proof courses.

See also: Rising Damp Guides · Basement Waterproofing Guides