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Buying a House in Norfolk? Why a CCTV Drain Survey Could Save You Thousands

  • 6 days ago
  • 3 min read

Buying a house is one of the biggest financial commitments you will make. A standard property inspection may identify visible problems with the roof, walls or flooring, but they will not be able to examine the condition of the underground drainage system; this is where CCTV drain surveys come in. 


A CCTV drain survey can reveal issues within underground pipework, potentially allowing you to avoid unexpected repair bills, or give you grounds to renegotiate the purchase price on the property.


What is a CCTV drain survey?


A CCTV drain survey is a detailed internal inspection of your drainage system using high-definition camera equipment. 


An initial assessment of your property will be performed to find the best access point for the cameras to be inserted. Upon insertion of these cameras, the following can be detected:


  • Cracked, fractured or collapsed pipes

  • Tree-root intrusion

  • Displaced or poorly connected joints

  • Recurring blockages 

  • Fat, scale and debris build up

  • Corrosion or deterioration 

  • Evidence of previous, poor-quality repairs

  • Incorrect connections or unusual pipe layouts


Evidence of these problems will be provided via recorded footage, photographs, and a written report depending on the survey package offered. At Downham Drainage, we will provide all of the aforementioned things.


Why are drainage problems easily missed?


Underground drains are out of sight, so a property can appear perfect on the surface, while serious problems develop underground. However, there are many warning signs which can indicate something is wrong, such as:


  • Slow-draining sinks, showers or toilets

  • Gurgling noises

  • Unpleasant smells

  • Damp patches or unusually lush areas in the garden

  • Cracks or movement near drain runs 

  • Evidence of repeated drain clearance

  • Rodent activity 

  • Older inspection chambers or pipework


The majority of drain problems can be sniffed out using these checks, yet there are some cases where damaged drains can produce no obvious symptoms, so it's worth carrying out a survey regardless.


Why Norfolk properties may need extra attention


As properties in Norfolk tend to be older in nature than many other houses around the country, they can be more prone to pipework problems. 


  1. Many properties in Norfolk have clay or brick drains, which can be more prone to cracking, displaced joints, root ingress and deterioration.

  2. Rural and village properties often have substantial vegetation near drainage runs. Roots can penetrate joints and cause recurring blockages.

  3. Some rural properties aren’t connected to conventional mains drainage and may have septic tanks, cesspits or private treatment systems. The condition and routing of the associated pipework can be important. 

  4. Detached and rural properties can have longer drainage runs, sometimes crossing gardens or serving more than one property, making defects harder to identify without a camera.

  5. Norfolk has areas susceptible to surface-water and drainage issues. A survey can help distinguish a problem with the property’s own drains from issues further downstream. 


Not all properties from Norfolk will suffer with these problems. It’s more common for an old, rural, out-of-town property to be more susceptible to drainage issues. Getting a CCTV survey can help detect and diagnose issues. 


How a drain survey could save a buyer thousands


A recurring blockage may initially look like a straightforward cleaning job. However, a CCTV inspection could reveal root intrusion, a displaced joint or a partially collapsed pipe. Identifying the underlying issue before purchase allows a buyer to understand the likely repair requirements and costs. 


A pre-purchase survey could help a buyer:

  • To ask the seller to arrange repairs

  • Renegotiate the purchase price

  • Budget accurately for future work

  • Obtain specialist advice before exchanging contracts

  • Avoid inheriting an unresolved drainage problem

  • Make a better-informed decision about the property


Which properties should buyers consider surveying?


As stated earlier, certain properties in Norfolk are more vulnerable to drain problems. To summarise, a buyer should consider getting a survey if their property has one or more of the following:


  • The property is older

  • There are mature trees nearby

  • The house has been extended

  • The drains are slow, noisy or smelly

  • Cracks or unexplained ground movement are visible

  • The seller reports previous drainage problems

  • The property uses a septic tank or another private system

  • The drainage layout is unclear

  • The buyer is planning renovations or an extension

  • The mortgage provider, insurer or surveyor recommends further investigation


When should the survey be arranged?


Ideally, you should arrange a survey after your offer has been accepted but before you exchange contracts. This means your findings can be considered alongside the building survey and searches before the purchase becomes legally binding. If problems are detected, this helps the buyer to make an informed decision on whether they should keep the property, ask for repairs, or cancel the contract.



If you’re buying a home in Norfolk, it's essential you get a drain survey alongside your standard survey. At Downham Drainage, we can provide a professional CCTV survey, as well as many other services which you can find here. Contact us today and we can detect and diagnose any problems you may have.


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