AHU Design & Selection
Air-handling units selected and designed for your building's loads and air-quality needs.
VAV Air Systems
Variable air volume systems for comfort, air quality and efficiency.
Air-distribution that matches conditioned-air supply to demand across large floorplates — improving comfort, indoor air quality and energy performance.
Demand-based airflow
Improved air quality
Energy efficient
BMS controlled
Large floorplates
Overview
What is a VAV system?
Variable Air Volume (VAV) systems regulate the volume of conditioned air delivered to each zone, rather than its temperature alone — matching supply precisely to demand throughout the day.
That means better comfort, healthier indoor air and lower energy use across large buildings. VeeKay designs and installs complete VAV systems — air-handling units, ductwork, VAV terminals and controls — tuned to your building.
- Comfort that adapts to occupancy
- Better indoor air quality
- Lower energy use across large floorplates
- Quieter, balanced operation
Our VAV Solutions
Complete VAV air-distribution
From air-handling units to balancing, we deliver every part of your VAV system.
Ductwork Design & Install
Efficient ductwork designed and installed for balanced, low-loss air distribution.
VAV Terminal Boxes
VAV boxes that modulate airflow zone-by-zone for precise, responsive comfort.
Dampers & Diffusers
Dampers, grilles and diffusers positioned for even, draught-free delivery.
Controls & BMS
Controls and building-management integration for demand-based operation.
Testing & Balancing
Full testing, balancing and commissioning before handover.
Why VeeKay
VAV engineering you can trust.
01
Experienced Engineers
Qualified HVAC engineers who design and build to last — not just to install.
02
Custom-Designed Solutions
Every system is sized and engineered around your building, load and use — never a generic kit.
03
Energy-Efficient Systems
Demand-based airflow and smart controls that cut fan energy and running costs.
04
Compliance With Standards
Built and documented to current ventilation and regulatory standards.
05
Ongoing Support & Maintenance
Planned maintenance and responsive support keep your system efficient and reliable.
Industries We Serve
Air systems for large, busy buildings
Commercial OfficesLarge, multi-zone workplaces
Shopping CentresRetail & leisure complexes
Airports & TransportHigh-occupancy public spaces
LaboratoriesControlled-air environments
Public BuildingsCivic & institutional facilities
Our Process
From consultation to ongoing support
01
Consultation
We learn your building, zones, occupancy and goals.
02
Design
Our engineers design the AHUs, ductwork and controls to specification.
03
Installation
AHUs, ductwork, VAV boxes and controls installed by qualified teams.
04
Testing & Commissioning
Systems tested, balanced and certified before handover.
05
Ongoing Support
Planned maintenance and rapid support keep it running.
VAV FAQs
Common VAV questions
What's the difference between VAV and CAV?
CAV (Constant Air Volume) delivers a fixed airflow; VAV varies airflow to match demand, which is more comfortable and far more energy-efficient in large buildings.
Is VAV more energy-efficient?
Yes. By supplying only the air each zone needs at any moment, VAV reduces fan energy and conditioning loads compared with constant-volume systems.
Can VAV improve indoor air quality?
Yes. Properly designed VAV systems maintain ventilation rates and filtration while controlling temperature, supporting healthier indoor air.
Will VAV integrate with our BMS?
Yes. We integrate VAV controls with your building-management system for monitoring, scheduling and optimisation.
Do you retrofit VAV into existing buildings?
Yes. We design VAV upgrades and retrofits to suit existing structures and services.
Get started
Planning a VAV installation or upgrade?
Talk to our engineers about a new system, a retrofit or a maintenance agreement — and get a clear, costed proposal.
Or call our engineering team — +27 63 839 4390