Power Supply Units

QES Ltd, founded in 1990, specialises in electronic power conversion equipment. We repair and manufacture power supply units and other electronic components

We are an independent industrial electronics design and repair house, specialising in switch mode power supplies, rectifiers and IPL chargers. Over the last three decades we have manufactured and repaired power supplies for militiary, avionic, industrial and commercial companies worldwide.

We provide a solid and dependable repair and manufacturing service, alongside our custom power supplies service, which provides a cost-effective solution where applications cannot be fulfilled from an ‘off the shelf’ product.

power supply unit repair

Power supply unit repair services

Linear power supplies
Switched mode power supplies
DC/DC converters
Inverters
Battery chargers
Power amplifiers and more...

QES designs power supply units

Electronic Product Design

Obsolete unit replacement
Turn ideas into products
Product development

There is no electronic design project too big or small for our expert team.

low volume, high quality electronic manufacturing services

Electronic Manufacturing

High quality - Low volume
Cost-effective
Reliable on-time delivery
Flexible, trustworthy service
Attention to detail at all times

QES are proud to offer the most reliable, cost-effective electronics repair solution in the UK.

Our quality electronic services are well known across a wide range of customers and markets the world over. Our emphasis is always on excellent electronic manufacturing to the highest standards. We are a strong, committed team at QES and your product is our priority.

We have an open door policy to customers, staff and suppliers and everything we do is transparent and open. We believe in creating good, open relationships.

Our engineers are all fully-trained and we invest in our staff, utilising our own in-house training and external resources. We understand that investment into equipment is essential in this industry and we have a programme of continual investment and upgrade.

QES Ltd cover all areas of industry and are able to offer your our expertise in commercial and industrial applications; medical, defence, energy and the environment. We are able to manufacture your product to your specification, including full testing. As an ISO company everything we do is traceable from the moment an enquiry is made.

We can take your idea and concept and design a product which incorporates all the functions you specified.

Our manufacturing capabilities are excellent. Testimony to this is the fact that our customers stay with us, year after year.

Please call +447549 355840 to discuss your needs, we are here to help you.

What We Do?

We repair power supplies and most other power electronics products

  • All brands
  • An evaluation fee applies, determined by the size and value of the product.
  • Repair yields over 98%
  • Solid and dependable products – 99% warranty return rate
  • Worldwide service
  • 3 months warranty

And we also do much more…

  • Source and replace obsolete products
  • Fit, form & function replacements
  • Custom design & development to your specification
  • Low volume manufacture & assembly
  • Build to standard, medical or military specs.

Reasons to choose QES

1: Our quality and attention to detail

As a certified ISO 9001:2015 organisation, all units are repaired or manufactured to the highest quality with minimum impact on the environment.

2: Built-in Reliability

Backed by using quality components, thorough testing and clear thinking

3: Flexible service

We create tailored solutions rather than a ‘one-size fits all’ combined with a willingness to accept that customers can change their minds.

4: Value for money

Cost-effective pricing with high quality production and products.

5: On-time delivery

Both repaired and manufactuered electronic units are packed with care and shipped directly to end users – anywhere in the world.

6: Confidence in QES

Thorough functional testing is a major part of our manufacturing process. Ensuring that your product will work first time and every time… ‘straight out of the box’.

Need a PSU repair?

Please contact us with your power supply unit repair needs.

We will promptly provide you with a cost-effective, high-quality, on-time repair solution.