Party Wall Damp in a Living Room on Lodge Villas, Woodford Green IG8
A house on Lodge Villas in Woodford Green had damp along the living room party wall, next to the neighbouring property. The survey linked it to outside defects and a possibly failing damp proof course.
Project at a Glance
The Brief
The owners had damp along the party wall in the living room.
The Survey
The damp was linked to external defects, including deteriorated render and poor surface drainage next to the neighbouring property. Persistent wetting had likely overwhelmed the wall, and the surveyor considered the DPC along this section may have started to fail, either through age or disturbance when the rear extension was built.
Signs of floor settlement in that part of the living room suggested damp may also have affected the sub floor timbers. Ceiling staining in the hall was from a historic leak the owner said had been repaired.
The Solution
A full internal and external package:
- Hack off damp plaster and inject a new damp proof course.
- Render and set the treated wall.
- Improve drainage at the base of the wall.
- Re render and repoint the external defects.
The Work
The work was carried out in August 2026.
The Result
Inside and outside were treated together so the new DPC is not left fighting wet render and pooling water. See our page on damp proofing in east London.
Frequently Asked Questions
Can building an extension damage a damp proof course?
Yes. Works close to the original wall can disturb or bridge the DPC.
Why might a floor sink near a damp wall?
Prolonged damp can affect floor timbers and their supports, so the sub floor should be checked.
Why fix drainage as well as the DPC?
Water pooling against a wall keeps it wet. Better drainage protects the new treatment.
Damp on a party wall?
Our CSSW and CSRT trained surveyors find the real cause before recommending any work. Non-invasive survey with a clear written report. No obligation.
Survey carried out by Matt Jewell at Advanced Damp. Project completed in Woodford Green, IG8.
Sam Fitzgerald is the founder of Advanced Damp and a working damp and structural waterproofing surveyor diagnosing and treating moisture problems in residential and commercial properties across London and the South East. He is FODCS certified (a Federation of Damp Certified Surveyor) and a member of the Federation of Damp. His hands-on work covers rising damp, penetrating damp, condensation, basement waterproofing to BS 8102, and thermal imaging surveys, and he has personally completed over 400 damp surveys across properties of every type and age. Everything he writes draws directly from jobs he has carried out. He does not write about treatments, products or causes he has not dealt with first-hand in the field.
