Keep Your Teams Comfortable and Your Energy Costs Under Control
Quiet comfort, efficient control and year round stability
Modern AirCon is essential for UK businesses and charities, creating calm, comfortable environments for staff, volunteers, visitors and customers. Today’s high efficiency heat pump AirCon systems provide both heating and cooling with exceptionally low running costs and a much lower carbon footprint, helping organisations stay sustainable and economical.
AirCon maintains stable temperatures across offices, retail spaces, hospitality venues and community buildings, supporting productivity and delivering a better overall experience.
Pretium Synergy designs, installs and maintains commercial AirCon systems tailored to your building — from targeted single split units for individual rooms to multi split and VRF systems for multi room sites with limited outdoor plant space. Every solution is engineered for efficiency, quiet performance and long term reliability.
👉 Create a More Comfortable Working Environment
Air Source Heat Pumps: Two Types — Know the Difference
(This page covers Air-to-Air heat pumps. For Air-to-Water, use the link below.)
Air Source Heat Pumps (ASHPs) come in two categories, and choosing the right one depends entirely on whether you need heating + hot water (full boiler replacement) or comfort heating/cooling (like airconditioning).
2) Air-to-Air Heat Pumps
(This Page)Air to Air Heat Pumps (Modern AirCons):
- Deliver warm or cool air
- Provide room by room climate control
- Do not connect to radiators or underfloor heating
- Not designed to replace your boiler
They are ideal for offices, retail, hospitality, and any building needing cooling + space heating, rather than a full wet-heating replacement.
1) Air-to-Water Heat Pumps
(See Our Other Page)Air to Water ASHPs supply hot water for:
- Radiators
- Underfloor heating
- Commercial heating circuits
- Hot Water Systems (including DHW)
They are the correct choice for boiler replacement and for buildings that need a central heating and hot-water system.
👉Visit Air-to-Water Heat Pumps & AC PageThis entire page — including, survey methodology, system design, installation and commissioning — refers specifically to Air-to-Air Heat Pumps — the modern form of Air Conditioning.
| Feature | Air-to-Water Heat Pump | Air-to-Air Heat Pump |
|---|---|---|
| Primary Function | Space heating + hot water | Space heating + cooling |
| Distribution Method | Water-based system (radiators, UFH, cylinders) | Direct-to-air via indoor fan units |
| Hot Water Production | ✔ Yes | ✖ No |
| Cooling Capability | ✖ No | ✔ Yes (air-conditioning) |
| Best For | Buildings replacing boilers or needing hot water | Offices, retail, hospitality, spaces needing year-round temperature control |
| Installation Requirements | Requires pipework & water connections | Requires ductless indoor air units |
| Energy Efficiency | Very high for heating & Hot Water | Very high for heating & cooling |
| Typical Commercial Uses | Warehouses, residential blocks, training centres, schools | Offices, gyms, retail units, classrooms, server rooms |
| Ideal Replacement For | Gas/oil boilers, electric heaters | Air-conditioning units |
How We Work (Commercial Air Conditioning)
1. Survey & Analysis
2. System Design
The design covers indoor unit placement, outdoor siting with aesthetic considerations, pipe routes, condensate management, electrical requirements and coordination with fresh-air systems or BMS/smart controls. It’s engineered for comfort, efficiency and minimal disruption.
3. Approvals, Compliance & TM44
Where relevant, we help you meet the expectations of key stakeholders — including facilities teams, local authorities and insurers — so your project runs smoothly and stays compliant over its lifecycle.
4. Professional Installation
5. Commissioning, Optimisation & Warranty
6. Ongoing Care
Which system is right for you?
A simple guide to choosing the best AC solution for your building.
Single-Split
Targeted control for individual rooms
- One indoor unit per outdoor unit
- Fast installation and minimal disruption
- Independent control per room
Best for: small commercial spaces or rooms that operate independently
Multi-Split
Different temperatures across several rooms
- One outdoor unit serving multiple indoor units
- Cleaner building appearance with fewer condensers
- Good energy performance across multiple zones
Best for: offices, retail units, healthcare rooms, restaurants, or any building with distinct zones
VRF/VRV
Scalable, whole-building comfort
- Supports 5 to 40+ indoor units
- Long pipe runs and flexible routing
- Exceptional efficiency with advanced modulation
Best for: multi-storey offices, hotels, education, hospitality, healthcare and large workspaces
| System Type | Rooms Served | Outdoor Units | Zoning Level | Typical Use Case | Notes |
|---|---|---|---|---|---|
| Single‑Split | 1 room | 1 indoor ↔ 1 outdoor | Basic | Small offices, shops, meeting rooms | Lowest cost; simple installation |
| Multi‑Split | 2–9 rooms | 1 outdoor | Good | Multi‑room offices, retail, clinics | Cleaner façade; more complex install |
| VRF / VRV | 5–40+ rooms | 1 outdoor (large) | Advanced | Large offices, hotels, education, healthcare | Highly scalable; advanced controls |
