Meet the Team

280610468_587369949491267_1579846521796103924_n
Gemma Ollerton

Managing Director

20220518_140912
Carl Ollerton

Technical Director

IMG-20250604-WA0000 (002)
Jamie Green

Regional Director (Central & Southern Region)

IMG-20220617-WA0004
Craig Jenkinson

Operations Director

IMG-20220617-WA0013
Stephen Parry

Contract Manager

IMG-20250227-WA0002
Cath Dahl

Contract Coordinator

IMG-20220617-WA0015
Ben O’Berg

Contract Manager

Kerry
Kerry Houghton

Contract Coordinator

Alex Stelmach 2025
Alex Stelmach

Business Compliance & Admin Coordinator

Matthew Lowe Contract Supervisor
Matthew Lowe

Assistant Contract Manager

Sean
Sean Moran

Contract Supervisor

Some Of Our Customers

Find out how we can help you!

With our extensive experience in Legionella Risk Assessment Services & Water Treatment Services Contact us today to find out how we can help you.

Contact Us

More great feedback about #TeamGMS

👉 Another fantastic piece of feedback from one of our hospital clients in the South West—received by one of our directors. #healtcare #respect #dignity #workethic #communication #staff #culture #legionella #waterhygiene #commercialplumbing Hi Jamie,  Do hope you are well?  We had Ryan, Niall and Aarron on site these past two weeks. We just wanted to express… Read more »

Why are males more susceptible to Legionellosis?

Why are males more susceptible to Legionellosis? Males are consistently reported to have a higher incidence of Legionnaires’ disease than females — typically 2–3 times higher. This is due to a combination of behavioural, biological, and environmental factors: 1. Higher exposure risk 2. Pre-existing health conditions 3. Biological / immune differences 4. Lung capacity (possible… Read more »

What Is BSRIA BG29 & BG50?

BG29 (Pre-Commission Cleaning of Pipework Systems) sets out best practice for cleaning commercial heating and cooling pipework before it is handed over. When new systems are installed, they contain: Mill scale from steel pipework Jointing compounds and flux residues Installation debris Construction dust and particulates If not properly removed, these contaminants: Block strainers and control… Read more »

Le Mans Crescent Project!

Major Mechanical Installation Project Underway at Le Mans Crescent, Bolton We’re proud to be delivering a significant mechanical installation project at Le Mans Crescent in Bolton, and it’s fantastic to see the works progressing well as the building services infrastructure begins to take shape on site. This phase of the project represents a key milestone… Read more »