Commercial Heating, Ventilation and Air Conditioning Contractors in Great Dunmow
Boiler house refurbishment, heating, ventilation, air conditioning and maintenance for new community buildings, schools and village halls in Great Dunmow.

Preou in Great Dunmow
In Great Dunmow we were the M&E contractor for the new community centre, a new-build project with a ground source heat pump at its centre.
The new community centre is on the Sapphire Fields development. Our engineers travel from Billericay, about 17 miles away, and projects are managed by a named contracts manager from first survey to handover.
The buildings we work on in Great Dunmow are mostly new community buildings, schools and village halls. 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 Great Dunmow

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: Great Dunmow
Do you carry out commercial heating, ventilation and air conditioning work in Great Dunmow?
Yes. Our office in Billericay is about 17 miles from Great Dunmow, and we work across Essex. The new community centre is on the Sapphire Fields development.
What kind of buildings do you work on in Great Dunmow (CM6)?
Mostly new community buildings, schools and village halls. Local reference points for our work here include Sapphire Fields. We do not carry out domestic work.
What have you completed in or near Great Dunmow?
In Great Dunmow: Dunmow Community Centre (£300k). Each has a full case study on this site.
Can you maintain plant in Great Dunmow 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 17 miles away.
Can the work be done while the building in Great Dunmow stays open?
Yes. Most of our projects are delivered in occupied buildings. One example is Dunmow Community Centre: the complete mechanical and electrical package for a new community centre, built around a ground source heat pump.
Other areas we cover
Planning a project in Great Dunmow?
Send us your drawings and specification, or call the office to discuss the programme.