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Our Company

Thermagal manufactures 18 million thermostatic elements and 4 million membranes for heating and sanitary applications every year.

Building on all our previous experience at Magal Dauphinoise Thomson, we do it with our high speed in-house designed wax element production machines, our automated and manual assembly, and our development and technical facility with fully-equipped test laboratory.

It means Thermagal is able to offer element and thermostat manufacturing like no other. We develop specific wax elements that are suitable for your cartridge, providing a better regulation throughout.

For over 50 years we’ve led this exciting business, not just with a skill set focusing on design, engineering, project management and commercial awareness, but also with a firm ethos on quality, reliability and accreditation.

Thermagal has received the quality certificates:
IATF 16949:2016 for Quality management systems
ISO 9001:2015 for Quality management systems
ISO 14001:2015 for Environmental management systems


Designing our products to enable the most efficient use of materials and resource in their manufacture, therefore offering the most competitive price to our customers. 


Using the Earth’s energy efficiently, aiming for the smallest impact to the environment over the entire products’ lifecycle.


Creating systems which are both robust and reliable in their operating environment, now and for years to come.


Engineering our products to be as efficient as possible, also by optimising use of raw materials.

50 years of Experience


Magal Dauphinoise Thomson completes plant extension increasing plant size to 5,500 m2 from 4,000 m2 for dedicated Wax Element production


Arlington Automotive acquires Magal Engineering. The Automotive division of Arlington Industries Group acquired 100% of the share capital of Magal Engineering


PTC element production changes from gluing to pressing


High output wax element calibrator introduced for capacity and competitiveness


Captured 66% (2/3) of global market share for PTC Wax Elements 


Acquisition of Metallifacture Ltd; Adwest Cables Ltd; Western Thomson Controls Ltd, Dauphinoise Thomson SAS (France); Bowden SAS (France); Western Thomson India. Formation of the Magal Engineering Group


Head Office and production is moved from Central Grenoble to a purpose-built site in Grenoble’s new Industrial district. This coincided with the commencement of a strategic partnership with Moehlenhoff 


Production of the PTC wax element starts


Launch of La Dauphinoise. The business produces thermostats for the automotive market for engine cooling