15 years of experience
Hands-on engineering experience across commercial air conditioning, refrigeration and connected mechanical systems.
ABOUT QMES
Commercial air conditioning & refrigeration specialists.
Experienced engineers supporting the performance, reliability and maintenance of essential cooling and mechanical systems.
WHO WE ARE
Specialist knowledge. Practical engineering.
Quadrant M&E Services Ltd specialises in commercial air conditioning, refrigeration, planned servicing and technical fault diagnosis, supported by expertise across chillers, ventilation, heating and associated mechanical plant.
Drawing on 15 years of hands-on industry experience, we investigate how systems operate as a whole, explain our findings clearly and provide practical recommendations tailored to each site.
Explore our services ↗
OUR CORE SPECIALISMS
What we work on.
Air conditioning and refrigeration are at the heart of QMES. Our wider engineering knowledge means we can also support the connected systems that keep commercial buildings operating.
01 / CORE SPECIALISM
Commercial Air Conditioning & VRV/VRF
Servicing, fault diagnosis, maintenance and repair of commercial air conditioning systems, from individual indoor units to complex multi-unit installations.
- VRV and VRF systems
- Split and multi-split air conditioning
- Fan coil units and heat pumps
- Refrigerant leak detection and repairs
- Electrical controls and communication faults
02 / CORE SPECIALISM
Commercial Refrigeration
Technical support for refrigeration equipment where dependable temperature control and system operation are critical.
- Walk-in cold rooms and freezer rooms
- Refrigeration compressor plant
- Condensing units and associated controls
- Leak detection and refrigerant circuit repairs
- Planned servicing and breakdown investigation
03 / COOLING PLANT
Commercial Chillers & Cooling Plant
Support for larger cooling systems and the mechanical and control components that influence performance.
- Chiller maintenance and fault diagnosis
- Cooling circuits and heat exchangers
- Pumps and water circulation
- Electrical and control system checks
- Component replacement and remedial works
04 / ASSOCIATED SERVICES
Heating & Mechanical Plant
Mechanical engineering capability extending beyond cooling to the equipment supporting building heating and water systems.
- Heating plant and heat exchangers
- Pumps and pressurisation units
- Valves, actuators and associated controls
- Electrical and mechanical fault investigation
- Planned maintenance and repairs
05 / ASSOCIATED SERVICES
Ventilation & Air Handling
Servicing and repair of ventilation systems that help maintain airflow and indoor environmental conditions.
- Air handling units and ventilation fans
- Fan motors and drive systems
- Airflow and operational checks
- Electrical controls and BMS interfaces
- Planned maintenance and component repairs
ADVANCED DIAGNOSTICS
We investigate the cause, not just the symptom.
Complex faults demand more than replacing parts. We use systematic testing and engineering knowledge to investigate refrigerant circuits, control boards, communication faults and the interaction between connected equipment.
Our approach is focused on identifying evidence, explaining findings and recommending appropriate repairs.
Diagnostics & repairs ↗SERVICING & MAINTENANCE
Protecting the systems your building relies on.
Planned preventative maintenance is a central part of our work. Regular inspections and servicing can help identify developing issues, support system reliability and inform future maintenance decisions.
We work with facilities teams and property managers to develop practical maintenance arrangements around the needs of each building.
Planned maintenance ↗Professional qualifications
City & Guilds qualified engineers, with company REFCOM F-Gas certification and Gas Safe registration.
Clear technical reporting
Practical findings, evidence-led recommendations and clear communication with clients.
COMMERCIAL EXPERIENCE
Experience in demanding environments.
Our engineering experience includes work at properties associated with established hospitality brands and other commercial operators.
Hilton
Marriott
Sheraton
Curio Collection by Hilton
Grand Plaza
Oakman Group
Brands and properties we have worked with through engineering projects and/or maintenance activities. This does not imply endorsement, group-wide contracts or direct QMES contracts for every engagement.
Supporting commercial clients across London, the Home Counties and East Anglia.
NEXT STEPS
Talk to QMES about your systems.
Commercial air conditioning, refrigeration, maintenance and specialist fault diagnosis.