Office Address

G.E.M.S. (SW) Ltd

687 Budshead Road




Tel No: 01752 769950

Electric Blanket Testing

Second Hand Electrical Goods Enforcement

Portable Appliance Testing

Festive Lights Safety Testing

About Us

Providing skills and quality products.

The company has its roots from a partnership formed by Clive Macdonald, Managing Director in 1989. It began by providing skills and quality products to the Marine Industry worldwide. Many of the skilled personnel were drawn from the naval industry based in Devonport Dockyard in Plymouth. Major projects were undertaken for Shell Tankers (UK) Ltd and other international companies worldwide.

About GEMS Electric Blanket Safety Testing Expertise in electrical engineering.
During the mid nineties the company began to diversify into areas associated with electrical safety and today, provides national expertise in electrical engineering to Local authorities, Fire authorities, manufacturers and local businesses.


“...To Whom it May Concern,
GEMS (SW) Ltd has worked with Age Concern England since 1999 to deliver Electric blanket testing across the UK. To date they have tested in excess of 25,000 blankets on our behalf.
In addition to providing first class engineers to carry out the testing of blankets, GEMS has also assisted Age Concern's projects in the following:

  • Sourcing, ordering, storing and delivering all replacement blankets for the project on a sale or return basis and liaising with Age Concern groups regarding delivery.
  • Putting together a schedule of testing days around the country accommodating the Age Concern's needs where possible.
  • Liaising with other partners to avoid clash of dates in blanket testing.
  • Providing advice regarding the care of electric blankets to our clients during our testing days.
  • Handling customer service enquiries after testing events, regarding operation of blankets.
  • Replacing any new blankets that fail, which are under warranty.
  • Giving feedback to Age Concern England at the end of the project regarding general organisation, appropriateness of venues hired by Age Concern groups and any problems arising durinq the project
GEMS has never failed to deliver what they have been contracted to do. ”
Yours faithfully, Shelagh Paterson Account Director Age Concern England

Why Choose Us

Commitment & Quality

The personal touch and commitment to quality has been the driving force to success. Everyone employed by the company is dedicated to the highest standards of service to our clients.

  • Providing skills and quality products.
  • Expertise in electrical engineering.
  • Commitment & Quality.