Damp and Timber Specialists for 50 years

Published: 08 June 2021


Miss C from Twickenham contacted Prokil as she noticed signs of damp in her front room on the ground floor.

Miss C said, “The service that was provided by Prokil from the initial enquiry through to after the work had been done was excellent, in terms of both speed of communication and efficiency in responding to my questions. They were very competitive in terms of pricing, and all operatives I came into contact with were highly professional, friendly and helpful. They went the extra mile to protect my new furniture and keep everything clean, despite the dusty nature of the work. I wouldn’t hesitate to use them again.”

Damp Survey Findings

Damp & Timber SurveyorWai Lam, our Damp and Timber Surveyor visited the property to commence the full investigation of the areas requested. Wai observed visible evidence of decorative spoiling on the right-side wall of the ground floor front room caused by salt contamination deposited in the plaster by water ingress.


Using different types of Protimeter, tests were carried out to the downstairs front room walls and timber skirting where moisture readings of up to 67.2% were obtained, exceeding the 18% advised by the Building Research Establishment.

Luckily for Miss C, Wai found no obvious signs of any rot, however with moisture readings of this level there is a high risk of potential rot formation if the damp is not treated promptly.

Following the damp inspection Wai concluded the presence of rising damp due to bridging of the current Damp Proof Course (DPC) was caused by raised ground levels at the front of the property and submitted his report to Miss C, complete with recommendations on the best damp proofing system to restrict future damp penetration and salt contamination damage. The report included a detailed breakdown of the costs to install the damp proof membrane as requested.

Getting to Work

Step 1

Removing all the skirting boards and preparation of walls by way of removing affected plaster to 1 meter high in the lounge area and from floor to ceiling in the upstairs areas ready for the waterproof membrane installation.

Step 2

A damp proof course (DPC) was injected into the masonry then covered by a specialist damp proof render.

Step 3

Finally the treated areas were finished with a multi-finish plaster and existing skirting boards reinstated leaving the area ready to be decorated. All rubbish was removed.

The Finished Result

After installing the DPC, damp proof render and plastering, all the rubbish was removed and the area was left clean and tidy and ready to be used by Miss C.

Photo Gallery

Site Preparation

Damp Proof Course Injection

Damp Proof Course Work Complete

For more information about our rising damp or penetrating damp solutions across the South of England and Wales, get in touch with our friendly team today. Call us on 0800 048 9488 or book a survey.

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