Energy
Water
AirVentilation, Air Quality & Regulated Environments
Air is half of HVAC — and it's all controls. We engineer the BMS side of air handling: AHUs, fan coils, dampers and heat recovery brought under one strategy, with demand-controlled ventilation that follows real occupancy, and monitoring that proves the result.
AHU & Plant Control
Supply and extract fans, damper actuators, heating and cooling coils, frost strategies — full BEMS control of air handling plant, new or inherited.
Fan Coil & Zone Comfort
Networked FCU control across offices, hotels and apartment blocks — consistent setpoints, scheduled operation, no zones fighting each other.
Demand-Controlled Ventilation
CO2-led fan and damper modulation: fresh air where people are, energy saved where they aren't.
The full air-side offering
MVHR & Heat Recovery
Thermal wheels, plate exchangers and run-around coils controlled properly — plus free cooling and night purge strategies that cut mechanical cooling before it's ever needed.
Clean Rooms & Pressure Regimes
Pressure cascades, air-change rates and alarm-backed excursions for pharmaceutical, laboratory and healthcare spaces — held continuously and evidenced.
Extract & Critical Ventilation
Kitchen, laboratory and plant-room extract with the interlocks, run-proving and duty/standby changeover that keep critical spaces safe and compliant.
Filter & Plant Health
Filter differential-pressure monitoring, fan run/fail status, frost protection and coil alarms — so ventilation plant tells you it's struggling before occupants do.
Signs your ventilation needs attention
Stuffy rooms, CO2 complaints
Ventilation isn't tracking occupancy. Demand-controlled ventilation — or fixing the one you have — brings fresh air back to where people actually are.
AHUs running flat out
Drifted setpoints, stuck dampers or failed sensors quietly pin fans at 100%. A controls survey usually finds weeks of wasted energy in an afternoon.
Frost trips & nuisance alarms
Repeated morning trips and alarm floods are strategy problems, not plant problems — and they're fixable in software before you replace anything.
Comfort complaints that never close
Zones fighting each other — heating and cooling at once — point to control logic, not capacity. We read the strategy and fix the cause.
Prove the air is right.
Control moves the air; monitoring proves it. From school estates to pharmaceutical clean rooms, we install and maintain air quality monitoring that keeps regulated environments compliant and everyday spaces healthy — with the records to show for it.
Life Sciences & Clean Rooms
Deep expertise in BEMS for regulated pharmaceutical and healthcare sectors, guaranteeing legal environmental compliance.
Rapid, Wire-Free Installation
Whole estates monitored without new wiring — open-protocol LoRaWAN wireless, e.g. 47 schools in 14 days.
Reporting & Compliance Evidence
CO2, PM2.5/PM10, temperature and humidity presented as clear, actionable reports — the evidence your estate is judged against, delivered through the Planetic platform.
Facing a complex integration challenge?
E.W.A. Controls Ltd. · Est. 1996
2 Farnell Road, Isleworth, Middlesex TW7 6EX
0208 737 7281 · sales@ewacontrols.com
© 2026 E.W.A. Controls Ltd. · Registered in England & Wales no. 03256538
Registered office: 17 Leeland Mansions, Leeland Road, West Ealing, London W13 9HE