WSI provide exclusively Clerk of Works and NEC Supervisors. The range of expertise on our team spans many disciplines but primarily resides within Building/Civils and MEP. We can be engaged through procurement portals, and either directly by clients or via consultants. The services we offer include:

Quality Control Inspections

Visual checks of materials in use and workmanship standards are assessed on site against the requirements as set out in the project specifications.

Defects & Observations

WSI has a system in place to monitor the closing out of defects and observations made to the Contractor by our inspectors.

Pre-Completion (Snagging)

WSI can produce and track schedules of defects / snags towards the end of the contract to identify items/areas of concern prior to handover.


Engage our services and have them rendered under your own brand, with all reporting, email notifications, and NCR alerts sent with your company name and logo.

Site Monitoring‚Äč

By regularly recording site activities along with weather, site conditions and labour levels, we can provide historic information that can be utilised to resolve disputes and help settle claims.

Progress Against Programme

By tracking progress against the Contractors programme, we record an independent view of the percentage completion of each activity. This helps highlight any activity that WSI believe to be behind schedule.

Test Witness Tracker

A schedule is maintained by our inspectors on any testing of materials and systems on each site. Any failures or non-conformances are highlighted direct to the Contractor and also contained within our weekly reports.

The WSI White Labelling service, which is popular within our NEC Supervisor service.
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