Commercial heating, ventilating and air conditioning engineers – successfully trading for over fifty years (Est. 1972)

Commercial Heating Specialists

Argonaut Heating Ltd, established in 1972, is a specialist contractor providing efficient and cost effective commercial and industrial gas fired heating, air conditioning, plumbing and ventilation services in a range of building types across London, Essex, Hertfordshire, Cambridge and East Anglia areas.

Our experienced engineers regularly complete projects of all sizes ranging from complete gas fired boiler house refurbishments, church heating and school heating installations, chemical cleaning of heating systems to small works like replacement of pumps and controls.

We are a specialist commercial heating contractor providing efficient and cost effective commercial and industrial gas fired boiler installations, gas fired boiler replacements, repairs and maintenance services.

See our commercial heating services page for more information.

Specialist Commercial Air Conditioning Services

Our air conditioning engineers provide the full range of air conditioning services including the installation of new air conditioning systems, upgrading of existing air conditioning systems and comfort cooling systems and air conditioning unit service and maintenance.

For information on our commercial air conditioning services, visit our page.

Commercial Plumbing, Ventilation & Controls

With over fifty years’ experience in the commercial and industrial mechanical services industry, Argonaut Heating Ltd offers a bespoke design, installation, repair and maintenance service for a diverse range of mechanical services works.

Our engineers provide services for fresh air ventilation, supply and extract ventilation systems, heat extraction, ductwork cleaning, completing projects of all sizes in a variety of building types. We offer free advice and quotations for ensuring your building is safe under the current health guidelines, including healthcare premises and correct dental practice ventilation.

Our control systems engineers are experienced in the installation and maintenance of computer based building energy management systems including Trend and Schneider.

See our commercial ventilation services information for more details.

Legionella Control Services

Argonaut Heating Limited offers a specialised provision of legionella control services including Legionella Risk Assessments and water quality testing for our clients for a variety of building types in both the public and private sectors, including schools, colleges, churches, offices, embassies, private members’ clubs, warehouses and factories.

Our range of legionella control services are available in the London, Essex, Hertfordshire, Cambridge and East Anglia areas.

Commercial & Industrial Boiler Services

Argonaut Heating Ltd engineers carry out a wide range of commercial gas fired heating boiler services, from complete gas fired boiler house refurbishments and gas fired boiler installations or replacement of heating pumps and controls to commercial gas fired boiler repairs and industrial boiler maintenance.

School Heating, Plumbing and Air Conditioning Services

In addition to our school heating and school boiler services, for our education sector clients we specialise in the design, project management and complete refurbishment of toilet areas including all plumbing and sanitaryware, cubicles, flooring, tiling, lighting and accessories.

We provide a range of air conditioning services for all areas within school buildings including offices, classrooms and school computer rooms.

Experienced Team of Engineers

All Argonaut Heating Ltd engineers are fully qualified and committed to excellence in health and safety thus ensuring that all installations and repairs are carried out in compliance with latest regulations.

We provide a range of commercial heating, ventilation, plumbing, air conditioning and comfort cooling services as well as Legionella water treatment and testing services.

Our engineers work in a variety of building types in both the public and private sectors including churches, schools, colleges, universities, embassies, private members clubs, hotels, sports centres, art galleries, healthcare premises, dental practices, warehouses and factories.

News – Client Case Studies

For information on commercial heating, ventilating and air conditioning work recently carried out for our clients, please visit the News page

Recent Testimonials

We would like to thank Terry and his team at Argonaut Heating for our new boiler at St Mary’s C of E Primary School, East Barnet.

From the first phone call I made it’s been a breeze, very helpful and always there if you have a question. As with any works we have here, we have a number of companies come to give quotes and Argonaut Heating came out with the best quote – but not just that, an easy to understand breakdown of what we need and what will work for our school. All work taken place was clean and safe with a friendly team that talked you through what you wanted to know. Fully recommend this company which are very hard to find these days.

Thanks once again.

Peter Waller, Caretaker, St Mary’s C of E Primary School, East Barnet, Herts
Your engineer has just left and we have heating! I can’t thank you enough and your service has been excellent.

Many, many thanks.

Julie Mohacek, Churchwarden, St. Mary the Virgin, Horne, Surrey
Thank you very much for the excellent job you recently carried out for us changing the pipework.

I was very impressed with the professionalism of the engineers you sent to us and am very grateful for the efficient service we received.

I look forward to continuing business with your company in the future.

Barry Dowsett, Facilities Manager, King Harold Business & Enterprise Academy, Waltham Abbey, Essex
We would like to thank you for the prompt and efficient way the new boiler was installed and we are very pleased with the result.

Please pass on our gratitude and thanks to all your team for their invaluable help.

Mark Smith, Facilities Manager, The Ursuline Academy Ilford, Essex

School boiler replacement works at Harlington Lower School, Harlington, Dunstable

Thank you so much for completing the work so quickly and without disruption to the school, it looks great.

The site manager, Marc, and Headteacher were both very complimentary about the actions of your engineers and their professional attitude.


Andy Morgan, The Pyramid Schools Trust

Argonaut Heating Ltd is an approved installer for all the leading and recognised manufacturers of commercial heating and air conditioning equipment including commercial boilers such as Hoval, Broag-Remeha, Strebel, Stelrad, Clyde Combustion, Potterton Commercial, Ideal Commercial, Vaillant Commercial, gas heaters including Drugasar, Rinnai heaters and Ambi Rad warm air heaters and air conditioning equipment including Daikin, Mitsubishi, Fujitsu and York, Trane and Carrier chillers.

Contact us for a free survey and quotation on all commercial heating, ventilating, plumbing and air conditioning requirements

Our team are happy to help