Leak Detection Folkestone | Building Leak Investigations

Established in 1986

Pioneers of electronic leak detection in the UK

Over 35,000 successful tests

Excellent Client Reviews

Professional Roof Assessment & Leak Detection Service

Thornton Consulting delivers professional, commercial water ingress investigations and services in Folkestone, bringing technical excellence to this coastal town’s diverse building stock. From the Creative Quarter’s converted commercial spaces to modern retail developments and the harbour area’s mixed-use properties, we, as leak detection experts, understand the particular challenges that coastal exposure and Folkestone’s unique topography present for building waterproofing.

Coastal environments demand robust waterproofing systems and vigilant maintenance. Whether addressing active leak issues in your Folkestone building(s), implementing preventative inspection programmes, or providing detailed condition assessments for upcoming commercial property transactions, our team delivers reliable, evidence-based solutions tailored to your needs. We offer professional building leak investigations that pinpoint ingress sources accurately, advanced electronic waterproof integrity testing, and thorough roof condition surveys that document current status and maintenance priorities, helping you protect your commercial assets from weather-related damage. All services are designed to help you make informed decisions quickly and with complete confidence.

How We Work

  • Planning

    Each project begins with a thorough consultation to understand your building's characteristics, waterproofing systems, and any known issues. We develop a targeted testing strategy appropriate for your building type whilst accommodating your operational capacity and minimising business disruption.

  • Testing

    Our qualified leak detection technicians deploy calibrated electronic equipment suited to commercial premises, which may be more complex. Whether using low voltage methods, pinhole detection, or differential pressure techniques, we systematically survey waterproofed areas to achieve thorough coverage and accurate results.

  • Evidence

    Every project receives precise documentation containing exact location mapping, detailed photography, and technical measurements, giving contractors clear target areas, streamlining repair specification and reducing unnecessary exploratory works.

  • Recommendations

    We provide actionable recommendations prioritised by urgency and risk. Our guidance includes immediate repair needs as well as longer-term recommendations that can be solved with regular maintenance. The recommendations will be considerate of the accelerated weathering that coastal exposure can cause, helping you allocate resources effectively.

Client Testimonials

I’ve worked with Thornton’s team for nigh on 10 years and I’m yet to be disappointed by any aspect of their business or interaction with any of their staff. I feel that the collaborative approach we have when working together not only benefits our site in a speedy response and solution, but it also strengthens our relationship with our onsite client team, building in faith that together we can self-solve most, if not all issues. Working with Wendy and the onsite teams is nothing short of a pleasure. I would highly recommend using Thornton Consulting Group for all investigative services when it comes to finding leak issues.

OCS Group (Bluewater)

Your team have successfully found the cause of the water ingress. I also wanted to write to express how impressed we are with the professionalism of both Sam and Dave and there health and safety whilst on site. I will be recommending Thornton Consulting going forward to the Hospital and will certainly use this service in the future with Carillion. Many thanks, and also for attending at such short notice.

Carillion Plc

We have worked with Thornton’s for several years now and we could not be happier with the service. The team are really helpful, accommodating and always happy to help us out if we are under pressure from a client. The team are always happy to take a call to discuss a project with them to get a clear understanding of the issues found on site. Thorntons always find the issues and provide a very thorough report to outline them with recommendations on repairs required.

Foxleys Fabrick & Building Maintenance

Thank you for your assistance with the DLI. The contractors used were fantastic and I would definitely recommend using them in the future.

Smart Property Development

Thornton Consulting are extremely professional, reliable and carry out a fantastic service with excellent communication throughout – we would recommend using them and we certainly will be using them again.

Rendall & Rittner

Just wanted to take a moment to commend your team for the works carried out on site. We are really pleased with the results.

TS, M

Thanks for the work carried out and the subsequent report. Sam and Dave were 1st class.

Complete Building Services Ltd

Coverage

From our Kent base, our specialist team provides comprehensive leak detection services throughout Folkestone, the Shepway district, and the wider East Kent coastal region.

Folkestone: CT18, CT19, CT20, CT21
Surrounding Areas: CT1, CT2, CT3, CT4, CT5, CT14, CT15, CT16, CT17

Key Areas: Folkestone Town Centre, Sandgate, Hythe, Dymchurch, New Romney, Lydd, Cheriton, Hawkinge, Capel-le-Ferne, Dover, Deal, Canterbury, Ashford

What You Receive

  • Report

    A professional technical report detailing our methodology, all findings, and expert recommendations. Our reports communicate essential information clearly to both technical teams requiring precise information and senior stakeholders who need top-level data to make an actionable, informed decision quickly.

  • Annotated Plans

    Scaled drawings with every detected defect precisely marked and cross-referenced. These detailed plans enable contractors to prepare accurate quotations and execute targeted repairs without speculative investigation or guesswork.

  • Priorities

    A clear ranking system distinguishing critical defects requiring immediate action from less urgent issues suitable for scheduled maintenance. This prioritisation supports sound risk assessment and budget planning.

  • Programme Guidance

    Strategic recommendations covering repair sequencing, realistic timescales, and appropriate inspection frequencies. We help you establish proactive maintenance regimes that account for coastal weathering and prevent emergency situations.

FAQs

Are coastal properties more prone to leaking?

Coastal locations like Folkestone do present additional challenges for building waterproofing. The combination of salt-laden air, higher wind speeds, and increased UV exposure accelerates weathering of roofing materials compared to inland locations. This doesn’t necessarily mean coastal buildings leak more frequently, but it does mean they potentially require more vigilant maintenance and potentially more frequent inspection. Our electronic leak detection services are particularly valuable in coastal areas because they identify emerging problems before accelerated weathering causes them to develop into major failures.

How does wind-driven rain affect leak detection?

Wind-driven rain can make water ingress problems more complex to diagnose because water may enter at one location but travel considerable distances through the building fabric before becoming visible internally. This is particularly common in coastal areas where prevailing winds drive rain horizontally into building facades and can force water through less overt defects. Electronic leak detection is especially valuable in these situations because it identifies the actual entry points in waterproofing membranes rather than just internal manifestation points.

Do you work in all weather conditions?

Most electronic leak detection methods require specific weather conditions to be effective. Low voltage testing typically needs wet conditions as moisture creates the electrical pathway we use to detect breaches, whilst pinhole or holiday testing works best in dry weather. High winds can also impact our ability to work safely on roofs. This means we sometimes need to schedule works around weather forecasts or may need to reschedule if conditions change unexpectedly. Given Folkestone’s coastal location and variable weather, we build flexibility into our planning and maintain multiple testing capabilities to maximise the likelihood of proceeding as scheduled.

Latest Blog & Case Studies

To find out more about what we do and how we work, read our case studies and blogs below.

What is Waterproofing Integrity Testing?

Integrity testing of newly installed waterproofing membranes has become common place for new build projects, in particular large commercial constructions or apartment blocks, although it …

Get in Touch Today

Call us on 01342 410508, email us at mail@thorntonconsulting.co.uk or send us a message using the form below. A friendly member of our team will be in touch shortly.

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