Case Studies

Explore real-world case studies showcasing GPT services, operating across a diverse range of industries to support clients prevent pollution and ensure compliance.

thumbnail image of a case study showing a transformer oil spill on grass

Emergency Spill Response

March 2025

thumbnail image of a case study showing a repaired drainage channel

Drainage & Interceptor Remediation

Feb 2025

thumbnail image of a case study showing a tanker vehicle clearing drains after an oil spill

Emergency Spill Response

Nov 2020

thumbnail image of a case study showing an interceptor during a maintenance visit with red cone and red barrier

Post-audit Interceptor Alarm Repair

Feb 2025

thumbnail image of case study showing a bund wall after lining

Bund Lining

Feb 2025

thumbnail image of case study showing a bund base

Bund Construction

Feb 2025

thumbnail image of case study showing bund wall after repair

Bund Repair

Nov 2024

thumbnail image of case study showing creosote pole storage area

Creosote Pole Storage

Feb 2025

thumbnail image of a case study showing two men in orange hi vis lifting a drain cover

Interceptor Alarm Service

April 2025

thumbnail image of a case study showing a gpt van and drain covers

Interceptor Repair


June 2024

thumbnail image of a case study showing an interceptor chamber from above

Drainage Remediation Works

Feb 2025

thumbnail image of a case study showing an open drain cover for an interceptor alarm service

Post Audit Alarm Repair


Feb 2025

thumbnail image of a case study showing mastic cable duct sealing in floor

Duct Sealing, Plant Room

Feb 2025

thumbnail image of a case study showing mastic cable duct sealing

Large-scale Facility Duct Sealing

Nov 2024

thumbnail image of a case study showing field engineer assessing cables for cable duct sealing

Food Manufacturing Facility Duct Sealing

May 2025

thumbnail image of a case study showing flood defence works in substation before mastic sealant deployed

Substation Mastic Duct Seals

Aug 2024

Interceptors / Separators
Secondary Containment
Environmental Consultancy