SIM Switchgear have been delivering an unparalleled level of service to the UK and overseas market since 1997. Based in Liverpool, Manchester & Aberdeen we can deliver a complete service to Power Stations, Hospitals, Steel works, industrial, commercial & offshore properties.

SIM Switchgear is equipped to deliver a full range of services, including routine maintenance and full-service inspections. Our skilled team of engineers are trained on all aspects of electrical switchgear health checking procedures and our specialist logistics department ensure all equipment is delivered on time and within budget.

SIM Switchgear’s range of test equipment for circuit breaker protection relays and panel mounted current and voltage relays is very comprehensive and includes testing for most relays. If we find we do not have one available, we will make every endeavour to source one.


Switchgear Service


Our workshop engineers will carry out all types of repairs, refurbishment and modifications to equipment from circuit breakers to complete switchboards. We also specialise in the refurbishment of fire and flood damaged switchgear, from the removal and return to our works for repair. We provide re-installation and re-commissioning of the plant and associated equipment.

Switchgear Service


Protection Service Areas:
• Generator Protection
• Motor Protection
• Feeder Unit Protection
• Busbar Protection
• Transformer Protection
• Synchronising Devices
• Translay
• Buchholtz
• Tripping & Control Equipment

Switchgear Service


Our design team is constantly designing new equipment which incorporates the latest technology from Vacuum Circuit breakers to Air Circuit Breaker technology to replace either worn out or dangerous circuit breakers.

Switchgear Service


Infrared thermography of electrical equipment is a vital preventive maintenance inspection technique, which can give instant real-time temperature of the electrical equipment. Thermal image inspection can help identify areas of insulation break down, loose connections and areas of abnormally high resistance that would ultimately lead to asset failure. It is also proven to provide substantial cost savings to the user.

Switchgear Service


SIM Switchgear engineers are specifically trained on all aspects of electrical switchgear, from the routine maintenance and repair of the mechanical aspect of the equipment to the periodic testing of the protection systems and associated relays.

Switchgear Service


SIM Switchgear provide clients with a comprehensive instrument calibration and repair service to ensure the integrity and performance of equipment. We utilise the latest diagnostic equipment available to ensure the highest possible standard of calibration. Each calibration is issued with full report and certifications.


Working closely with customers, consulting engineers and contractors, we design and manufacture low/medium voltage switchgear solutions in a timely cost effective manner.

Switchgear Service

The team

Dave McWilliam

Commercial Director

Steve Houson

Technical & Service Director

Lewis Rowland

Executive Director


Senior Commissioning Engineer

Mokhtar medaffar

Technical Service Director - Aberdeen

Brian Kerr

Technical Manager - Aberdeen

Dave Billington

Contract Manager


Senior Commissioning Engineer

KEVIN Crossland-jones

Site Service Engineer

David Baker

Site Service Engineer

Martin Sharp

Financial Controller

Colin Bennett

Site Service Engineer

Hannah Rowland

Accounts Assistant

Craig Baker

Site Service Engineer

Mohamed Aldoubasi

Electrical Engineer

Service Sectors

Offshore Switchgear Installations

Oil & Gas Offshore


Industrial Switchgear
Industrial and Building Services

Building Services

Contact Us

We’re always open to enquiries, please contact us with any questions you have

Working hours

Monday - Friday : 8:00-17:00

Our Headquarters

Unit 10, Gateway, 4 School Ln,
Knowsley L34 9EN
Phone:+44 151 546 2330
Email: info@sim-switchgear.com

Manchester Office

Unit 2, Sedgley Park Trading Estate,
Prestwich, Manchester
M25 9WD
Phone:+44 161 260 0460
Email: info@sim-switchgear.com

Aberdeen Office

Unit 24, Robert Leonard Centre,
Kirkhill Ind. Estate
Dyce, Aberdeen AB21 0GG
Phone:+44 1224 058 006
Email: info@sim-aberdeen.com