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About Us

With over 70 years of continuous manufacturing in the UK, and tens of thousands of products worldwide, it’s easy to see why Watford Control are the world’s leading brand of voltage stabilisers and voltage management systems.

Our electromechanical stabilisers have been in operation for over 60 years and our first solid state stabiliser was patented in 1972, many of which are still in operation today and still sets the benchmark for today’s modern products.

     We are also ISO 9001 and ISO 14001 accredited.


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Despite the passage of time, the general principle of stabilising AC voltages in factories, hospitals, military installations airports or wherever you may need us, remains largely unchanged and that’s why over the last 70 years, Watford Control are still the #1 brand around the world.

Our continuous improvements in technology and manufacturing processes have enabled us to offer integrated PFC to all our stabilisers (at a significant cost advantage over separate systems) and new Solid State stabilisers up to 4mVA in capacity.

We take the lead when it comes to designing products and we come up with unique solutions to your voltage stabilisation and optimisation needs, many of which are patented to us. Our EM/EMS turbo range, BE solid-state stabilisers and new Powersaver range of voltage optimisers are just a few examples of the power conditioning technology which benefits our customers every day.


Our systems offer surge-free operation and unrivalled reliability. Whether you want the convenience of a ready-made system, IP00 for your own product range or a bespoke device, we’ve got the solution to your national and international power supply requirements.

our timeline



Stephen Brod, Chairman and founder of the company introduces a range of precision timers for X-ray and photographic equipment.



Introduction of EM range of Servo Mechanical AC Voltage Stabilisers



Move from Kilburn north London to new factory in Watford.



True solid-state, low distortion AC Voltage stabilisers introduced. Still the basis of the very latest ‘solid state’ stabilisers made today.



Stabilisers supplied to the CERN project in Genéve.



Major contact awarded to supply over 500 stabilisers for unmanned television transmitters.



Company moved to Corby, Northants.



EM range smtended by the addition of the EM21 Series, providing 50% more kVA for the same frame and size.



EM21 design technology introduced to entire stabiliser range up to 8000 kVA



Econostab energy saving stabilisers introduced.



Powersaver Voltage Optimiser range introduced.



Compact range of single phase PSC Powersavers aimed at the smaller commercial premises such as small retail outlets, offices, medical practitioners and public houses.



Remote Monitoring Ethernet communication module to allow remote monitoring of Voltage, Current, Frequency and Power levels.



Business acquired by Envirovolt and JMS Transformers. Move to new manufacturing centre August 2016.

We’re Here To Help

Highly experienced team with over 70 years in the industry.

Mark Massetti

Mark Massetti

Managing Director

Scott Clinton

Scott Clinton

Customer & Technical Services Director

Ed Hudson

Ed Hudson

Sales Director

Whatever your needs or application, our friendly technical sales staff at Watford Control can help you to get the right product.
Simply fill out our online Fast Track Enquiry Form or call us on +44 (0) 333 210–2–240.

Over 10,000+ Products Shipped Worldwide

Unrivalled Voltage Correction Range
of ± 40%

Solid State or Electro
Mechanical Operation

Independent 3 Phase Control

Large Range of Models From 1kVA to
4mVA Single or Three Phase

Fully Customisable to Unique
Customer Requirements

Clients we have served...