Commercial and Industrial Roof Surveys
Independent roof surveys that give you the evidence to make the right decision
Surveyroof provides professional roof surveys and leak detection services for commercial and industrial buildings across the UK.
Our surveys are designed to help you understand the true condition of your roof, locate defects, identify moisture and support targeted, cost-effective repairs.
We are independent roof surveyors. We do not carry out roofing repairs. That means our reports are unbiased and focused on giving you clear information, not selling remedial work.
We Are Independent
We do not fix roofs. We inspect, test and report. That gives clients confidence that the advice is based on evidence, not a repair quote.
We Help Reduce Unnecessary Costs
A clear survey report helps you target the right repair areas instead of guessing where the problem might be.
We Provide Evidence You Can Use
Photographs, drawings, marked defect locations and clear recommendations help contractors and decision-makers understand the issue quickly.
We Work Nationwide
Surveyroof provides commercial and industrial roof surveys across the UK, with offices in Manchester and London.
Our Independent Roof Surveys for Commercial & Industrial Buildings
Surveyroof works across a wide range of commercial and industrial roof types, including flat roofs, low-pitched roofs, waterproofing membranes, metal roof areas, aluminium standing seam systems and pitched tiled roofs where remote camera inspection is needed.
Electronic Leak Detection
Non-destructive moisture mapping helps locate hidden moisture within the roof build-up and understand the extent of the problem. This supports targeted repairs and better maintenance decisions.
High Voltage Dry Test
A high-voltage integrity test carried out on dry, exposed membranes, identifying pinholes, punctures, discontinuities and workmanship defects across the membrane surface.
Earth Leakage Wet Test
Carried out in wet conditions during rainfall or after the test area has been wetted down. This method traces the direction of current flow back to the point where moisture is entering the membrane. That makes it the strongest choice when a leak is active and its source needs finding.
Scan-Map™ and EPDM Testing
A faster low voltage wet method, and the one that opens up membranes the others can’t reach. Conventional electronic testing relies on the membrane being non-conductive, which rules out EPDM entirely. Scan-Map™ tests it.
Membrane Condition Surveys
Independent electronic leak detection and integrity testing for flat roof and waterproofing membranes. Ideal for identifying breaches, pinholes, punctures, installation defects and membrane failures on new or existing roof systems.
Thermal Imaging Leak Detection
Thermal imaging roof surveys help identify saturated insulation, entrapped moisture and areas of concern that may not be visible during a standard inspection. A useful method for predictive maintenance and roof condition assessment.
Moisture Mapping
Non-destructive moisture mapping helps locate hidden moisture within the roof build-up and understand the extent of the problem. This supports targeted repairs and better maintenance decisions.
R.A.I.N.™ Roof Monitoring
R.A.I.N.™ is Surveyroof’s roof monitoring and early warning service framework, supporting continuous insight into roof condition using sensor-based monitoring technology. It helps detect moisture and roof incidents earlier, particularly where ongoing visibility is important.
Visual Condition Surveys
Detailed visual roof condition surveys with photographic reporting for industrial metal roofs, aluminium standing seam, pitched tiled roofs and other roof areas where a clear condition report is needed.
Roof Maintenance Programmes
Planned roof maintenance surveys designed to help extend roof life, reduce unplanned costs and identify issues before they develop into larger failures.
Pre Installation Solar Surveys
Planned roof maintenance surveys designed to help extend roof life, reduce unplanned costs and identify issues before they develop into larger failures.
Industrial Roof Surveys
Independent industrial roof surveys and inspections for factories, manufacturing plants, warehouses, industrial estates, processing facilities and logistics operators across the UK.
Commercial Roof Surveys
Independent commercial roof surveys and inspections across the UK for property owners, facilities managers, managing agents, retailers, hoteliers, logistics operators and solar installers.
Roof Types and Recommended Test Methods
A quick reference for matching roof build-ups to the right survey method
Not every roof can be tested the same way. The waterproofing system, the deck beneath it and any surfacing on top all determine which method will give reliable results — and, in some cases, whether the roof can be tested at all without lifting overburden.
The guide below sets out the common commercial roof build-ups we survey, with a short description of each and the test method we’d recommend. Holiday Detector testing suits exposed membranes on conductive decks; the Earth Leakage Wet Test traces breaches across an area where a dry test isn’t suitable; and some systems are better assessed visually or need a layer removed before testing. If you’re not sure which category your roof falls into, tell us the deck, the waterproofing and what sits on top, and we’ll recommend the right approach.
Metal deck, PVC membrane, foil-faced insulation
Single-ply PVC on a conductive metal deck; membrane exposed and fully testable.
Holiday Detector Test
Earth Leakage Test
Metal deck, PVC membrane, tissue-faced insulation
Single-ply PVC on a conductive metal deck; membrane exposed and fully testable.
Holiday Detector Test
Earth Leakage Test
Plywood deck, PVC membrane
Single-ply PVC over a non-conductive plywood deck, so wet tracing isn’t possible.
Holiday Detector Test
Plywood deck PVC membrane – tissue-faced insulation
Need….
Holiday Detector Test
Metal deck fleece-backed PVC over plywood overlay
PVC bonded to a plywood overlay above the insulation; the ply breaks the earth path.
Holiday Detector Test
Metal deck, liquid-applied over plywood overlay
Liquid-applied waterproofing on a plywood overlay above the insulation.
Holiday Detector Test
Concrete deck, EPDM membrane
EPDM on a concrete deck; non-conductive membrane not suited to electronic integrity testing.
Visual Inspection
Metal deck, built-up bituminous felt
Two layers of felt plus a felt cap on a conductive metal deck; exposed and testable.
Holiday Detector Test
Earth Leakage Test
Plywood deck, built-up bituminous felt
Two layers of felt plus a felt cap on a non-conductive plywood deck.
Holiday Detector Test
Hot melt roof
Monolithic hot-melt waterproofing, usually beneath a surfacing; suited to wet area tracing.
Earth Leakage Test
Asphalt roof
Mastic asphalt waterproofing; exposed and testable.
Holiday Detector Test
Earth Leakage Test
Ballasted roof
Membrane loose-laid under stone ballast; wet tracing across the area where accessible.
Earth Leakage Test
Green roof
Membrane beneath a vegetated build-up; wet area tracing.
Earth Leakage Test
Inverted roof — ballast
Insulation and stone ballast sit above the membrane.
Requires paving removal to test
Inverted roof — paving
Insulation and paving slabs sit above the membrane.
Requires paving removal to test
Not sure which applies? We’ll recommend the right method before anything is booked.
Call 0845 257 7663
Surveyroof provides independent roof surveys, electronic leak detection and roof condition reports for commercial and industrial buildings across the UK.
Catch Problems Early
We help building owners, facility managers, contractors and maintenance teams understand what is happening on their roof before small defects become expensive problems.
We Survey, Not Repair
We do not carry out roofing repairs. We survey, test, report and advise. That means our findings are unbiased, clear and focused on giving you the information you need to make the right decision.
Act with Confidence
Whether you need to locate a leak, check a membrane’s condition, support a handover or plan maintenance, Surveyroof gives you the evidence to act with confidence.