Damp proofing service
Penetrating Damp
Find where the water is getting in and stop it at the source.
Get a quote for penetrating damp
A free, no-obligation survey and a written quote.
Damp proofing
Find the way in, then shut it off
Unlike rising damp, which comes up from the ground, penetrating damp comes in sideways through the outside of the building. It usually shows as a damp patch that gets worse after rain, often part-way up a wall or around a window, chimney or roofline rather than at the very bottom.
The common culprits are cracked or blown render, failed pointing, defective flashing, blocked or leaking gutters and downpipes, and gaps around window and door frames. The key to fixing penetrating damp is finding exactly where the water is getting in, because treating the inside wall without stopping the outside fault just lets it come back. We locate the source, put the external fault right and then make good the affected plaster inside.
What's included
What the work covers
Every quote varies depending on the property and what the job needs, but here is what a typical penetrating damp job with us covers from start to finish.
- A survey to trace where water is entering
- Repairs to render, pointing and flashing
- Clearing and repairing gutters and downpipes
- Sealing around windows, doors and openings
- Making good the damaged plaster inside
How we do it
The typical process
Step 01
Trace the source
We inspect the outside to find exactly where water is getting in.
Step 02
Fix the fault
Render, pointing, flashing, gutters or seals are repaired as needed.
Step 03
Let it dry
The wall is allowed to dry out now the water is stopped.
Step 04
Make good
We replaster and make good the affected area inside.
Book a free penetrating damp survey
Tell us what you have noticed and we will come out, find the cause and provide you with a written quote with no obligation.
The quote
Penetrating Damp costs
Every property is different, so we quote each job on its own after a free survey rather than off a description. These are the things that move the figure, and we set it all out in writing before any work starts. The visit is free.
- What is letting the water in and how easy it is to reach
- Whether scaffolding or access equipment is needed
- How much internal making-good is required
- The number of areas affected
Areas covered
Penetrating Damp across Hampshire
- Southampton
- Winchester
- Basingstoke
- Andover
- Romsey
- Ringwood
- Gosport
- Fareham
- New Forest
Related services
Common questions
Penetrating Damp questions
Why does the patch get worse when it rains?
Can you find the leak?
Do you fix the outside as well as the inside?
How do you find where the water is getting in?
Will I need scaffolding?
Get a quote for penetrating damp
A free, no-obligation survey and a written quote.