The Engineering That Keeps Water and Time Out of Your Building

There is no single correct material; the right one is the material that suits the application conditions. Where there is pressurised water at the foundation and retaining walls, a double layer bituminous membrane or a certified synthetic sheet is required. On roofs and terraces UV resistance comes to the fore, which is where TPO and PVC membranes have the advantage. On surfaces with complex geometry, seamless polyurea and polyurethane based liquid membranes are preferred. When choosing a material, check that it carries the relevant standard certification such as TS EN 13967. Most of the failures we see on site come not from material quality but from the wrong material choice and faulty detailing.

A correctly installed drainage system runs almost maintenance free; all it needs is a simple check once a year. Lift the inspection chamber covers and see whether silt has built up at the pipe mouths. Standing water permanently sitting in a chamber may indicate a blockage in the discharge line. Clean leaves out of the roof drains in autumn and check that the downpipes discharge far enough from the building. Make sure the ground around the building still slopes away from it; settled fill can create a reverse fall over time. These checks take half an hour and extend the life of the system considerably.

The duration depends on the scope of work and the weather. On a detached house, external foundation drainage and waterproofing including excavation usually takes 5 to 10 working days. Roof or terrace waterproofing alone is completed in 2 to 4 days. Injection work is localised and often finishes in 1 to 2 days. On jobs requiring excavation, rain can extend the schedule, because membrane application needs a dry surface. The quote we issue after the survey sets out the work programme in writing on a day by day basis.

You can get in touch via WhatsApp, by phone, or through the free survey form on the site. When you attach photos to your request we can make a preliminary assessment faster. We schedule a free technical survey within 24 hours of your enquiry. During the survey our engineer reviews the geotechnical report on site and inspects the water level, the current damage and the discharge options. Within 48 hours of the survey we send a detailed quote setting out the system, materials, work programme and warranty scope separately. There is no charge for the survey or the quote.

Yes, we issue a written warranty covering both materials and workmanship. The warranty period varies between 5 and 10 years depending on the system applied and is stated explicitly in the contract. Since most failures seen on site come from application rather than material, the workmanship warranty is critically important. The contract also sets out in writing the warranty start date, the response time and the exclusions. Cracking caused by earthquakes and structural movement, damage from subsequent drilling and alterations, and blockages caused by lack of maintenance are excluded as standard.