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Welcome to Watford Control

With over 70 years’ experience to our name, Watford Control are the trusted world leader in AC voltage stabilisation, power conditioning and voltage management technology. Our voltage stabilisers and power conditioners operate in some of the most challenging conditions on Earth, including the nuclear industry, contaminated environments, specialist outdoor applications and even sub-sea installations.

Over the last 70 years, we’ve installed tens of thousands of units across the globe, being the preferred supplier for many government and commercial installations.

With the increase of renewable generating technology, national grids around the world are struggling to maintain stable supplies, which leads to an inevitable decline in power quality - we are therefore, the preferred choice for embassies, hospitals, manufacturers and military operations where power quality
is critical.

Our continuous improvement programme ensures that our customers always get the latest advances in voltage control technology, and that’s why our in-house engineers are always working to advance our offering and meet the growing demand for our services.

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How can we help you with our services?


Voltage Stabilisers

Our range of Servo Controlled and Solid State AC voltage stabilisers, offer a solution to meet the most exacting requirements, from 1kVA right up to 4mVA across single or 3 phase applications...


Power Conditioners

Power Conditioners are used to keep voltage spikes and interference at harmless levels, whilst maintaining a stable voltage supply. There will always be some transient noise in any mains...


Variable Transformers

Our Rotavolt variable autotransformers provide a continuous linear regulation of AC voltage, with high efficiency, without distorting waveforms significantly. The Watford Control Rotavolt...


Voltage Optimisation

Did you know that you could reduce the cost of your energy by up to 18% through voltage optimisation and management? At Watford Control, we’re working with some of the best known retail brands in...


Specialist Applications

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...