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District Heating Systems

district heating service

Roberts & Son Specialise in maintaining and repairing district heating both the HIU (Heat Interface Unit) and the Plant Room aspect.

The basic principle of a District Heating Systems is to have one centralised heating plant that is distributing to local aided heat exchanges to provide heating and hot water in multi occupied building structures from homes to offices.

We work on District Heating Systems in shelter houses, office blocks and multi housing complex’s such as blocks of flats.


Heat interface units, also known as HIU systems act as a bridge between the central boilers and the heating and hot water systems within a property. These are typically installed within large apartment blocks where you can have one central boiler system sometimes referred to as an energy centre which provides heating and hot water to the entire block of flats. This not only saves costs but also maximise the use of space available within each flat.

The hot water produced by the centralised boiler system is transferred via heat exchangers, to provide each apartment with on-demand heating and hot water. Heat interface units can be designed to work alongside other renewable technologies such as solar PV or air source heat pumps.


Here at Roberts & Son, we provide both planned maintenance as well as operations and maintenance (O&M) contracts for heat interface units. As part of these packages, one of our qualified and experienced engineers will attend your property to carry out a thorough annual service of your heat interface unit. We will also attend your property for any reactive / emergency repairs.

We not only provide reactive call outs for our clients signed up to our maintenance contracts but will also attend emergency repairs for none contractual clients as well.

So, if you are a private individual, commercial business or manage a portfolio of HIU units that require servicing or maintenance works get in touch with our dedicated team today who will be happy to help!

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Lets get started! Contact us for a free quote on your next home improvement project.

Why Choose Us?

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Years of experience

  • Unrivalled workmanship
  • Responsive and Respectful
  • Professional and Qualified
  • Personalised solutions
  • Competitive prices
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