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Specialist remediation, from survey to reinstatement, since 1984
01536 682300helpdesk@wksg.co.uk
White Knight Service GroupInstruct a survey

Survey, remediation, laboratory clearance, reinstatement

Specialist remediation, finished properly.

From first survey to a room back in service: investigation, laboratory-verified remediation and reinstatement from one accountable contractor, documented at every stage for hotel groups, insurers, landlords and facilities teams.

Instruct a surveySpeak to a technical lead

From first survey to handover, one contractor throughout.

  1. Assess

    Moisture mapping, root-cause investigation and targeted sampling.

  2. Verify

    Samples analysed in our own laboratory, so the scope is based on results.

  3. Remediate

    Contained, negative-pressure work areas and two-stage decontamination.

  4. Clear and report

    Post-remediation clearance testing and a photo-documented report.

  5. Reinstate and hand over

    Making good and finishes from the same contractor, ready to return to use.

Who we work for

All sectors

Hospitality and hotel groups

Hidden decay found, remediated and reinstated, room by room around trading.

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Loss adjustors and insurers

Claim-ready scopes, lab-verified clearance and reinstatement from one contractor.

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Housing and social landlords

Root-cause investigation, documented evidence and homes made good.

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Facilities management

Contained remediation, documentation and reinstatement for FM providers and estates teams.

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Commercial property

Extent established before removal, then remediated and reinstated by one contractor.

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Refurbishment projects

Know what’s behind the walls before your programme does.

Mould and dry rot often stay hidden inside floors, voids and bathroom pods until strip-out begins. We help hotel groups, owners and refurbishment contractors find it early and deal with it without derailing the programme.

Before strip-out

Pre-refurbishment surveys

Moisture mapping, targeted investigative openings and laboratory sampling, so hidden defects are scoped and priced up front.

Plan a survey

During strip-out

Found something? We assess and remediate

Contained remediation alongside your main contractor, room by room, with clearance testing before trades return.

Report a discovery

Our protocol

One method, documented from first visit to final clearance.

Every instruction is built around our OXID-8/B-RINSE two-stage decontamination methodology, so you know what will happen and what you’ll receive at each step.

How OXID-8 works
Method sheet
Methodology
OXID-8 / B-RINSE
Containment
Negative pressure, HEPA filtration
Verification
In-house laboratory
Clearance
ATP surface testing and air sampling

What we do

Services

Specialist capability under one roof, from investigation through to reinstatement.

How our end-to-end service works

Case studies

Commercial property

Mould decontamination of a brewery production building, after an earlier clean-up failed

A previous firm's mould clean-up at a brewery production building failed to stop contamination returning within a couple of months. We identified the root cause, delivered contained decontamination and confirmed the result with laboratory clearance testing.

Read the case study
Sector
Commercial property
Building
Brewery production building (rural site)
Issue
Mould recontamination after a previous firm's clean-up
Scope
Environmental survey, decontamination and clearance testing
Hospitality

Dry rot remediation across a full bedroom floor of an operating hotel

Dry rot was found in the cross-laminated timber (CLT) structure beneath guest bedrooms. We used targeted investigative openings to establish the true extent, then remediated room by room while the rest of the hotel continued trading.

Read the case study
Sector
Hospitality
Building
New-build hotel, CLT structure
Issue
Dry rot in floor and wall panels
Scope
A full floor of guest bedrooms
Hospitality

Decontaminating a hotel kitchen after a Category 3 escape of water

Category 3 water from pipework above the ceiling contaminated a hotel kitchen. Surface tests were low, but laboratory microscopy showed mould contamination on the walls and a timber partition. We decontaminated the kitchen and carried out clearance sampling over two working days.

Read the case study
Sector
Hospitality
Building
City-centre hotel
Area
Kitchen and food preparation area
Issue
Category 3 escape of water, dormant mould

In-house laboratory

Our own laboratory, so decisions rest on results.

Mould microscopy, air and surface sampling, ATP and bacterial swabs, salts and chemical analysis, available alongside our site work or as a standalone service.

Request a test

Featured test

Air-O-Cell air sampling

Air-O-Cell sampling allows rapid collection of airborne particulates, followed by microscopic analysis of the impacted samples at our laboratory.

Sample type: Air sample

About this test

Mould microscopy

Species identification from tape lift, swab or bulk samples.

ATP and bacterial swabs

Rapid biological contamination checks for clearance and hygiene.

Have a property that needs assessing?

Tell us about the site and a technical lead will come back to you.

Instruct a surveyCall 01536 682300