Welcome to GGS, Experts in Continuous Monitoring

GGS is the UK’s leading environmental specialist in Continuous Monitoring.


Working with clients in the contaminated land, onshore oil and gas, housing development and health and safety industries, GGS delivers independent intelligence that result in dependable data and reliable solutions.

We’re motivated by technological innovation that delivers advanced monitoring services to our clients. Using best available technologies and real-time data, our multi-skilled team of experts transform high quality information into sound knowledge.

As dedicated professionals and independent specialists, our monitoring strategies, interpretive reports and bespoke data products replace uncertainty with robust evidence.
With a reputation for delivering cost-effective and efficient solutions, GGS provides the highest quality environmental monitoring services that clients, communities and regulators can trust.

Key Services

Onshore Oil and Gas

Environmental Baseline Studies and continuous monitoring for the onshore oil and gas sector.

Continuous ground-gas monitoring

Improved risk prediction & shorter monitoring periods through continuous ground-gas monitoring.

Verification of ground-gas measures

Inspection & verification of ground-gas protection measures, in line with up to date best practice guidance.

Radon Detection Services

Radon monitoring, risk assessment, mitigation options appraisal and validation monitoring.


  • The recent joint GGS and PAG training event held in Leeds was one of the best training courses I have attended for a long time. The digital copies of the presentations will help me share good practice knowledge with colleagues.


  • I am very grateful and impressed by the excellent communication from all and the quick turnaround. I’m also impressed with the information provided within, and the clarity of, the GGS Datapack® and I’ll certainly be in touch in respect of future projects.


Who we work with

We work with a range of clients across different industries.  Through our experience, we  have gained an understanding of the pressures that our clients are under and we strive to deliver timely, high quality, cost effective solutions.  Please choose the category that you fall into.


We provide environmental monitoring using Best Available Technologies to demonstrate that operations are not affecting baseline conditions.


Use GGS as a specialist subconsultant, to add confidence to your ground gas risk assessment and save your clients time and money.


GGS use continuous ground-gas monitoring to shorten monitoring periods and reduce over-designed protection measures.


Increase confidence in containment systems through continuous monitoring of active landfills.


Understand the real risks and liabilities for negotiations and valuations by using our unique continuous monitoring service.


GGS supports local authority in Part 2A investigations by improving ground-gas risk assessment.