Nothing Substandard Leaves the Essco Shop. That’s our Promise.
Engineered offsite heating, hot water and electrical prefabricated solutions to suit your requirements and budget.
Our engineers understand the pressures faced when working on site and have successfully project managed many builds to tight schedules. You can rely on us to help you do a good job for your customer.
DESIGN
BUILD
DELIVER
Features & Benefits
- Offsite prefabrication saves time and reduces project costs
- Expensive equipment stays off site making it less vulnerable to theft
- Simplified logistics and project management
- Technical support on-hand by phone, video call, email or face to face
- Gas Safe Registered engineers with extensive experience
- Cloud-based; project specific QA files available via QR code
- Products are tested and approved for peace of mind
- Aftersales service and support – ESSCO never walk away
- 2-year warranty as standard

Prefab Utility Cupboards for Heat Networks
With communal heating in apartments on the rise, many developers are choosing to install prefabricated utility cupboards to reduce cost and risk. This also allows them to deliver projects ahead of schedule.
Our utility cupboards are supplied fully fitted, pre-tested and ready to install on-site.
Typically, they include –
- Heat Interface Unit
- Cooling Interface Unit (Optional)
- Mechanical Ventilation and Heat Recovery unit
- Water Meter Assembly
- All associated piping and electricals
Essco cupboards are built bespoke to project design requirements.
EDGE Heat Interface Units (HIUs)
Our HIUs are perfect for use in prefabricated utility cupboards for heat networks.
Units feature first-class components, including the market-leading valve from ESBE and intelligent electronic flow and temperature control technology.
Packaged Plant Rooms and Skids
Reduce onsite labour costs and simplify installation with our bespoke packaged plant.
Equipment ranges from skid mounted buffer tanks or simple heat transfer packages to complete plant rooms with BMS control.
From initial design and specification to finished product on site, we can provide a solution no matter how big or small.
Offsite Packaged Solutions for Data Centres
Some of our data centre prefabricated solutions include:
- HVAC plant rooms
- Cooling plant rooms
- GRP enclosures
- LV switch rooms
- Wastewater reverse osmosis
- Chilled water UV filtration
Prefabricated offsite solutions can mitigate issues such as –
- labour and skills shortages
- Theft on site
- Soaring material and labour costs
- Poor onsite workmanship
- Difficult site conditions and access problems
Digital QA Process
We partner with Mobtag to digitise the QA process.
This cuts down on paperwork and gives our customers easy access to QA files and O&M manuals specific to each plant room or PUC from any internet connected device.
Especially useful during commissioning and handover.
Scan the QR code opposite to access a sample project QA pack.
Downloads
Latest News & Case Studies
Essco’s Haunted House of Heating
Welcome to Essco’s Haunted House of Heating 👻 🎃 No Tricks. Just Terrifyingly Good Service. Step inside…if you dare. Here’s what happens when you summon Essco Group this Halloween – 🕷️Our Approach 💀 Our Promise Happy Halloween from the Essco team.
Heat Pump Plant Room for Northolt School
Last week, this plant room was safely delivered to Northolt High School in Harrow, where a major redevelopment led by Kier Construction will create space for 1,130 pupils and target a Net Zero rating. Working with heat pump specialist G-Core, we were commissioned to construct this packaged plant room solution to house: • 3 ground…
How often should you service and maintain a HIU?
As heat interface units are an inherently low maintenance space heating system, the recommendation from BSRIA BG 62/2015 is that a maintenance check every 3 years should be sufficient. However, we recommend that HIU strainers are checked at least once annually, depending on the water quality of the installation. Any build-up of debris can cause…
Essco Group Acquires Helec Ltd, Expanding Capabilities Across All Divisions
It is with great pleasure that we announce that Helec Ltd has officially joined Essco Group. With over 17 years of expertise across sectors such as residential, healthcare, education and hospitality, Helec is one of the UK’s leading providers of Combined Heat and Power (CHP) systems. Their reputation for delivering comprehensive, energy efficient systems, aligns…