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Drain surveys should never be considered an additional expense, it is now considered to be one of the most valuable parts of the surveying process and is not to be over looked. Defective drainage systems are responsible for major structural defects in buildings, subsidence and can be avoided if located and corrected in time.

So what should you expect from a Home Buyers CCTV Drainage Survey ?

In most cases the drain will require high pressure jetting to clean the drain prior to surveying, this ensures that the footage, photographs and report will be of the highest quality. A typical home buyers CCTV drain survey on a standard 3 bedroom home will take about three hours, the first hour to clean the drainage system and the remaining two hours to carry out the survey. When booking a survey always be sure that you have been quoted for jetting as well as surveying.

We would recommend the survey to be carried out prior to exchange of contracts or ASAP to prevent the slow down of any sale if defects are found.

There is no good reason not to have a drainage survey carried out – drain surveys remain valid for 5 years and should be kept as historical record. Survey reports can be re-used within a five year period as part of a sellers pack meaning they retain their value. Commercial / Industrial  properties should also be considered for all of the above mentioned reasons.

What is in the report?

At Advance Drains, our NADC C-D-S (Certified Drainage Surveyor) will provide you with an easy to read and understand report which will include the following:

  • Structural Condition Reporting/analysis
  • Misconnections identification and reporting
  • Drainage system ownership – Private/Water Company
  • Mapping – drawing to show drainage system location and components
  • Detection of vermin within the drainage system
  • We will also provide a DVD showing the survey


For your information :

  • Mortgage lenders and insurance companies may request a drain survey. These reports will satisfy all parties including solicitors for CON29DW’s (Water Searches)
  • Water company could be for-warned about any defects on their asset, saving time and money on repairs and preventing the buyer from inheriting problems
  • Most RICS building surveyors do not carry the equipment to carry out an in-depth survey to a critical part of the structure (everything else can be properly inspected apart from the drainage system.)
  • Buyers are often left in the dark about the condition of drains which are often out of sight, out of mind …. and can often be in a very poor condition

Section of CCTV survey report showing a defective junction in the pipework