About us

QES Ltd

QES Limited was established in 1990 as a high quality repair and engineering services business that specialises in electronic power conversion equipment (Power Supplies). Twenty one years later these Quality Electronic Services are well known across a wide range of customers and markets globally.

All of the services provided are covered under our Quality and Environmental management systems which are certified to ISO9001:2015.

QES is the company for anything relating to power supplies. If you need Custom Designed product, off the shelf repacements for older units, or a power supply for a new application then contact us and we will be more than happy to help.

Repairs are what we are renowned for. We repair any power supply made by anyone anywhere around the world. We deal with product from all over Europe for repair in our UK workshop. Our reputation for doing a quality job at the right price.

Take a look at our web site for more information or give us a call to discuss what your requirement are or get a price.


Services

Added Value Modification Of Old Power Supplies

Added Value Modification Of Old Power Supplies

Added Value Modification Of Old Power Supplies Here at QES LTD we are market leaders in engineering, we can provide Added Value Modification Of Old ...

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Bespoke Electronic Power Conversion Equipment

Bespoke Electronic Power Conversion Equipment

Bespoke Electronic Power Conversion Equipment Here at QES LTD we pride ourselves in being experts in Bespoke Electronic Power Conversion Equipment ....

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Bespoke Electronic Product Design Service

Bespoke Electronic Product Design Service

Bespoke Electronic Product Design Service We can always design a fit, form & function replacement. We have successfully taken this approach for a nu...

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Commercial Electronic Power Supply Repairs

Commercial Electronic Power Supply Repairs

If you are interested in Commercial Electronic Power Supply Repairs please phone +44(0)1438 749849 where our staff will be happy to help you. We are l...

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Commercial Power Supply Repairs

Commercial Power Supply Repairs

Our range of services includes Commercial Power Supply Repairs. Our website has many more examples visit it at www.qesltd.co.uk or call us on +44(0)14...

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Consolidated Power Supply (psu) Repair Services

Consolidated Power Supply (psu) Repair Services

Consolidated Power Supply (psu) Repair Services QES works with a wide range of customers; from small companies to world wide organisations; from com...

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Custom Electronic Conversion Equipment Specialists

Custom Electronic Conversion Equipment Specialists

Custom Electronic Conversion Equipment Specialists Here at QES LTD we pride ourselves on being Custom Electronic Conversion Equipment Specialists. W...

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Data Communication Products For Broadcast Sector

Data Communication Products For Broadcast Sector

Data Communication Products For Broadcast Sector If you are looking for Data Communication Products For Broadcast Sector then QES LTD are here to hel...

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Design & Development Service In The Military Sector

Design & Development Service In The Military Sector

Design & Development Service In The Military Sector We provide a Design & Development Service In The Military Sector for customers that are looking f...

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Design and Development In Engineering Services

Design and Development In Engineering Services

Design and Development In Engineering Services Here at QES LTD pride ourselves at being at the forefront of the industry in Design and Development I...

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Design And Electronics Engineering Consultancy Specialists

Design And Electronics Engineering Consultancy Specialists

Design And Electronics Engineering Consultancy Specialists If your looking for Design And Electronics Engineering Consultancy Specialists QES LTD ar...

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Electronic Design Services For Obsolete Products

Electronic Design Services For Obsolete Products

QES Ltd operates in Hertfordshire. We provide Electronic Design Services For Obsolete Products throughout the UK. Call us today. We pride ourselves on...

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Electronic Design Services For Replacement Products

Electronic Design Services For Replacement Products

QES Ltd has developed a wide range of services including Electronic Design Services For Replacement Products from our headquarters in Hertfordshire. C...

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Electronic Power Supply Repair Specialists

Electronic Power Supply Repair Specialists

QES Ltd are a specialized Electronic Power Supply Repair Specialists company based in Hertfordshire. Please don't hesitate to call, phone, fax, email ...

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Electronics Design Service In Stevenage

Electronics Design Service In Stevenage

Electronics Design Service In Stevenage We can provide a Electronics Design Service In Stevenage for customers that are looking for something special...

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Electronics Manufacturers & Assembly In Stevenage

Electronics Manufacturers & Assembly In Stevenage

Electronics Manufacturers & Assembly In Stevenage As well as manufacturing our own electronics products we carry out a low volume high quality Electr...

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Electronics Modification Service In Birmingham

Electronics Modification Service In Birmingham

Electronics Modification Service In Birmingham We are able to provide a Huge Electronics Modification Service In Birmingham .Companies who produce h...

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Experienced Power Electronics Engineers

Experienced Power Electronics Engineers

QES Ltd are a specialized Experienced Power Electronics Engineers company based in Hertfordshire. Please don't hesitate to call, phone, fax, email or ...

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Experienced Power Electronics Technicians

Experienced Power Electronics Technicians

Please contact us on +44(0)1438 749849 and one of our friendly will team will provide more information on our Experienced Power Electronics Technician...

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High End Surface Mount Circuit Board

High End Surface Mount Circuit Board

High End Surface Mount Circuit Boards At QES LTD we provide a vast selection of products and services, we specialise in High End Surface Mount Circ...

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High Voltage DC Input Power Supply Repairs

High Voltage DC Input Power Supply Repairs

QES Ltd operates in Hertfordshire. We provide High Voltage DC Input Power Supply Repairs throughout the UK. Call us today. We pride ourselves on offer...

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High Voltage Output Power Supply Repairs

High Voltage Output Power Supply Repairs

QES Ltd are a specialized High Voltage Output Power Supply Repairs company based in Hertfordshire. Please don't hesitate to call, phone, fax, email or...

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IPL Machine Power Supply Repairs

IPL Machine Power Supply Repairs

Please contact us on +44(0)1438 749849 and one of our friendly will team will provide more information on our IPL Machine Power Supply Repairs

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IPL Machine PSU Repairs

IPL Machine PSU Repairs

If you are interested in IPL Machine PSU Repairs please phone +44(0)1438 749849 where our staff will be happy to help you. We are located in Hertfords...

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Laser Machine Power Supply Repairs

Laser Machine Power Supply Repairs

QES Ltd has developed a wide range of services including Laser Machine Power Supply Repairs from our headquarters in Hertfordshire. Call us to be deal...

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Laser Machine PSU Repairs

Laser Machine PSU Repairs

Are you looking for a professional job at a competitive rate? At QES Ltd we are consistently providing a quality service. We specialize in Laser Machi...

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Low Voltage DC Input Power Supply Repairs

Low Voltage DC Input Power Supply Repairs

QES Ltd has developed a wide range of services including Low Voltage DC Input Power Supply Repairs from our headquarters in Hertfordshire. Call us to ...

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Low Voltage Output Power Supply Repairs

Low Voltage Output Power Supply Repairs

Please contact us on +44(0)1438 749849 and one of our friendly will team will provide more information on our Low Voltage Output Power Supply Repairs

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Manufacturers Of Analytical Devices For The Broadcast Sector

Manufacturers Of Analytical Devices For The Broadcast Sector

Manufacturers Of Analytical Devices For The Broadcast Sector Here at QES LTD we are number one Manufacturers Of Analytical Devices For The Broadcast...

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 Specialist Supplier Of Contract Electronics Manufacturing

Specialist Supplier Of Contract Electronics Manufacturing

Specialist Supplier Of Contract Electronics Manufacturing We handle outsourcing right through the manufacturing process and deliver boxed products ...

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Case Studies

A Military Naval Sheltered Environment Power Supply Unit

A Military Naval Sheltered Environment Power Supply Unit

This unit was designed to a full customer specification for use within a system now deployed on the new UK type 45 Destroyers. The design & developmen...

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Power Supply Design & Manufacture

Power Supply Design & Manufacture

The Problem All products eventually become obsolete giving rise to a need to design fit, form and function replacements. We offer a “one stop” solutio...

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2 Case Studies

Documents

QES Catalogue

QES Catalogue

Catalogue

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1 Documents

Social Media

Contact Us

QES Ltd

  • Unit 4, Chells Enterprise Village
  • Chells Way
  • Stevenage
  • Hertfordshire
  • SG2 0LQ

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