• Scanseal
  • Scanseal
  • Scanseal
  • Blocked Drains


    High pressure water cleaning, Root cutting, Scale cutting, No Call Out Charges, Quick response, Call Now we have engineers in your area.  >>more

    CCTV Inspection

    CCTV surveys from pipe sizes 22mm up to 1000mm. Professional written reports with colour captures and DVD recording. >> more

    Drain Lining


    Drain Lining & Patch repair system capable of lining pipe sizes from 75mm to 400mm & lengths of 100 metres from a single access.>> more

    Drain Testing


    Scanseal provides services and testing equipment that can detect and repair most on-site drainage problems.   >> more



    Where structural lining is not possible, our team are ready to carry out excavations to replace any damaged pipe work.  >>more

    Road Resurfacing


    25 year experience to reinstate and resurface to a first class finish whether it be tarmac, block paving or concrete  >>more

    Scanseal Drain Testing Services

    There are various types of drain testing, the most common testing is a CCTV drain survey which involves inspecting a drain with a camera and reporting any defects. 

    A hydraulic water test is used when testing for water-tightness, this test involves stopping up the down stream pipe in the manhole and filling the drain with water until it can be visually observed at the top end of the pipe.  If the water level goes down it means the drain is leaking.  This type of testing can be incorporated with dye testing which involves adding a colour dye to the water, if the pipe is leaking into a basement area this type of test can highlight the drainage which is causing the problem. 

    Air testing is used when testing a pipe for air tightness and this involves stopping up both ends of the pipe and then putting the pipe under air pressure using a testing device.  If the pressure drops then the pipe has failed the test.
    For more information about Scanseal Draining Testing Services please call us on 020 3253 2008 or use the Contact Form. London and Surrey