Your damp proofing cost can vary greatly from as little as $200 per wall to upwards of $2,000 per wall. While the size of your wall no doubt plays a part in determining how much you actually pay, it isn't the biggest influencing factor in the same way that it is with other wall treatments such as rendering.

How much does it cost to damp proof a wall UK?

Cost of damp proofing internal walls

Costs vary widely between different areas and different suppliers, but a rough average is around £70 per metre of wall being treated, or around £280 per wall. Across a whole house, the costs may then rise to several thousand pounds if you need to treat every wall.

Can I do my own damp proofing?

Even the installation of a damp proof membrane (DPM), of the plastic sheet mesh variety, can be considered a DIY damp proofing solution. Once again, there are a good range of damp proof membrane kits available that can do the job.