Commercial Heating, Ventilation and Air Conditioning Contractors in Colchester
Boiler house refurbishment, heating, ventilation, air conditioning and maintenance for NHS and mental health facilities, schools, university buildings and barracks-era public estate in Colchester.

Preou in Colchester
Our work in Colchester includes the hot water plant replacement at The St Aubyn Centre, an NHS mental health facility, delivered as main contractor.
The St Aubyn Centre is on Boxted Road in Mile End, north of the city centre. Our engineers travel from Billericay, about 27 miles away, and projects are managed by a named contracts manager from first survey to handover.
The buildings we work on in Colchester are mostly NHS and mental health facilities, schools, university buildings and barracks-era public estate. They are occupied buildings, so the works are planned in detail before we start on site: shutdowns agreed in advance, heavy work programmed into holidays or quiet periods, and temporary plant where heating or hot water has to stay on.
Our services in Colchester

Boiler House Refurbishment
Plant room strip-out and renewal around live buildings: boilers, pumps, plate heat exchangers, flues, pressurisation and BMS, programmed into school holidays and hospital shutdown windows.
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Heating and Ventilation
LTHW heating, radiators and distribution pipework, air handling units, MVHR and extract systems, from design to commissioning.
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Air Conditioning
VRV and VRF systems, split units and fan coil units, installed by F-Gas certified engineers in occupied buildings.
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Chilled Water and Cooling
Cooling towers, chillers, chilled water pipework and process cooling for MRI and CT, with pressurisation and water treatment.
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Domestic Water Services
Hot and cold water plant and distribution: water heaters, cylinders, booster sets, UV filtration, chlorination and washroom refurbishment.
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Gas Services
Gas Safe registered. Gas supplies, pipework alterations, gas safety circuits and boiler plant connections.
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Temporary Boiler Plant
Temporary heating and hot water plant that keeps a building running while its permanent plant is replaced.
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Service and Maintenance
Preou FM: tailored planned maintenance for boiler plant, air conditioning, ventilation, water hygiene, BMS and electrical systems.
Find out moreFrequently asked questions: Colchester
Do you carry out commercial heating, ventilation and air conditioning work in Colchester?
Yes. Our office in Billericay is about 27 miles from Colchester, and we work across Essex. The St Aubyn Centre is on Boxted Road in Mile End, north of the city centre.
What kind of buildings do you work on in Colchester (CO4)?
Mostly NHS and mental health facilities, schools, university buildings and barracks-era public estate. Local reference points for our work here include Boxted Road, Mile End. We do not carry out domestic work.
What have you completed in or near Colchester?
In Colchester: The St Aubyn Centre (£80k). Each has a full case study on this site.
Can you maintain plant in Colchester after it is installed?
Yes. Preou FM provides tailored planned and reactive maintenance for boiler plant, air conditioning, ventilation, water hygiene and BMS controls, run from our service department in Billericay, around 27 miles away.
Can the work be done while the building in Colchester stays open?
Yes. Most of our projects are delivered in occupied buildings. One example is The St Aubyn Centre: essential plant replacement and associated mechanical and building works as main contractor at an NHS mental health facility.
Other areas we cover
Planning a project in Colchester?
Send us your drawings and specification, or call the office to discuss the programme.