
Roofing service
Damp Proofing
Penetrating damp traced to its source and put right across Kent.
Get a quote for damp proofing
A free, no-obligation survey and a written quote.
Damp Proofing
Stop the water, then treat the damp
Damp inside a home often starts outside, and a roofer is well placed to find it. Penetrating damp from a leaking roof, a cracked chimney, failed pointing or an overflowing gutter shows up as staining, blown plaster or a musty smell, and treating the wall without stopping the water only lets it come back.
We trace where the water is entering, put the external fault right, whether that is a flashing, a slipped tile, the pointing or the guttering, and then treat and make good the affected area. Where the damp needs specialist work we tell you honestly what is involved. The point is to deal with the cause, not paint over the symptom.


What’s included
What the work covers
Every quote varies with the roof and what the job needs, but here is what a typical damp proofing job with us covers from start to finish.
- A survey to trace where water is getting in
- Repairs to roofs, flashings, chimneys and pointing
- Clearing and fixing of overflowing gutters
- Treatment and making good of the damp area
- Honest advice where specialist work is needed
How we do it
The typical process
Step 01
Survey
We inspect inside and out to find where the water is entering.
Step 02
Quote
You get a written price to fix the source and treat the damp.
Step 03
Fix the source
We put the external fault right so no more water gets in.
Step 04
Make good
The affected area is treated and made good once it can dry.
Why choose us
Why choose Assured Roofing Kent for damp proofing?
Damp inside often starts with a fault outside, and as roofers we can find and fix that source rather than just treating the stain.
Insured and qualified
Fully insured and qualified across domestic, commercial and industrial roofing, so the work is done to standard.
Guaranteed, Checkatrade-listed
Listed on Checkatrade, with a 15 to 20 year guarantee on new pitched and flat roofs (T&Cs apply).
Free survey and written quote
A free, no-obligation survey and a fixed price in writing before any work begins.
24-hour emergency cover
A 24-hour emergency roof repair service for when a problem cannot wait.
Our verified customer reviews load once you accept marketing cookies.
Get a free damp proofing quote
Tell us what the roof needs and we will come out, inspect it properly and give you a written, no-obligation quote.
The quote
What goes into your quote
Every roof is different, so we price each job on its own after a free inspection 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 roof, chimney or gutter work is needed
- The amount of internal making-good
- Access and scaffolding
Areas covered
Damp Proofing across Kent & South East London
- Maidstone
- Tonbridge
- Tunbridge Wells
- Sevenoaks
- Ashford
- Medway
- Dartford
- Gravesend
- Canterbury
- Bromley
- Bexley
- Orpington
Related services
Common questions
Damp Proofing questions
Is my damp coming from the roof?
Do you treat the wall as well as the roof?
Why does the damp keep coming back?
How do I know if my damp is coming from the roof?
Will the damp come back after you treat it?
Still haven't found the answer you're looking for?
No need to fill in a form. Message us on WhatsApp or give us a call and we'll happily answer it.



