Our Services

Penetrating Damp Treatment

Penetrating damp enters through defects in the building fabric — walls, roof, windows, or gutters. We trace the source, fix the defect, and treat the internal damage.

What Is It?

Understanding Penetrating Damp

Penetrating damp occurs when water enters a building horizontally through defects in the external fabric. Unlike rising damp, it can appear at any height on a wall and is directly linked to rainfall or water from defective building elements. It is one of the most common causes of damp in UK properties.

Defective or eroded pointing in brickwork or stonework
Cracked, spalled, or porous render
Blocked, leaking, or overflowing gutters and downpipes
Defective flashing around chimneys, dormers, or roof junctions
Failed window or door seals and frames
Penetrating damp staining on a wallSouth East Damp Experts

Warning Signs

Signs You May Have Penetrating Damp

Damp patches on internal walls that worsen during or after rain
Staining or tide marks at mid or high level on walls
Damp patches on ceilings below a flat roof or parapet
Mould growth on external walls, particularly around windows
Damp smell that is worse in wet weather

Our Approach

How We Treat Penetrating Damp

Our surveyors carry out a thorough external and internal inspection to identify the precise entry point. We then carry out or specify the necessary external repairs — repointing, render repair, gutter clearance, or flashing replacement. Once the source is resolved, we treat any internal damp damage including replastering, mould treatment, and redecoration preparation.

Guarantee

All penetrating damp works are guaranteed. External repair works are carried out or specified by our qualified surveyors.

01

Free Survey

A qualified CSTDB/CSSW surveyor visits your property and carries out a thorough inspection using calibrated diagnostic equipment.

02

Honest Report

We provide a clear written report explaining our findings, the cause of the problem, and our recommended treatment — with no obligation.

03

Expert Treatment

Our in-house team carries out all works to the highest standard. No subcontracting. No shortcuts.

04

Guaranteed Results

All works are backed by a long-term guarantee registered with the Guarantee Protection Trust for your complete peace of mind.

Real Jobs

Recent Penetrating Damp Jobs

Penetrating Damp job in Southend-on-Sea, EssexSouth East Damp Experts

Southend-on-Sea, Essex

Penetrating damp to chimney breast caused by defective lead flashing. Flashing replaced and internal plaster treated.

Penetrating Damp job in Ipswich, SuffolkSouth East Damp Experts

Ipswich, Suffolk

Damp patches to rear elevation caused by failed render. Render hacked off, repaired, and internal walls replastered.

Penetrating Damp job in Colchester, EssexSouth East Damp Experts

Colchester, Essex

Blocked gutters causing water ingress to top floor bedroom. Gutters cleared, downpipe replaced, and internal damage treated.

Concerned About Penetrating Damp?

Book a professional survey with one of our qualified surveyors. We will diagnose the problem, explain our findings clearly, and provide a detailed, honest quotation.

"Used South East Damp Experts for a rising damp treatment on my house in Brentwood — they were really tidy workers and good communication all the way through the job. Highly recommend."

J
Julie D·Brentwood, EssexYell.com

"Professional, efficient and ultra reliable throughout the process, as well as really approachable and friendly. Couldn't do more to help. Their quote came in significantly cheaper than the other company's and included more for our money. Top guys, top company. Couldn't recommend highly enough."

M
Michael W·EssexYell.com

"The team provided a fantastic service from getting the initial survey done to the actual works itself. They were professional, friendly, reliable, efficient and very tidy. I really recommend these guys."

V
Valerie O·EssexYell.com

"Promptly turned up to perform a survey. I felt confident I was not being pushed to get work done unnecessarily — the surveyor seemed very knowledgeable. Staff were courteous and professional when attending my property. Would use again and highly recommend."

J
Jacqui C·EssexYell.com

"Reliable and respectful, good communication from the team. Completed our damp proofing on time and left our property clean and tidy."

J
Jacky R·EssexYell.com

"I had rising damp at a property I was purchasing and used South East Damp Experts to carry out a survey which was done promptly. Dan was super helpful and communicative. The work was done efficiently and they even cleaned up well afterwards. Always very friendly, respectful and professional."

S
Stacey J·EssexYell.com

"Incredible team, highly recommend these guys. Very friendly and professional, they did a fantastic job, nothing was an issue. Would definitely use them again. 100% recommended."

D
Dan·EssexGoogle