Commercial HVAC & Air Conditioning Design
Commercial HVAC and air conditioning design in the UK — heat load calculations, system selection, ductwork and pipework layouts, and drawings ready for building control and tender.
About Commercial HVAC & Air Conditioning Design
Commercial HVAC and air conditioning design in the UK — heat load calculations, system selection, ductwork and pipework layouts, and drawings ready for building control and tender.
Our commercial hvac & air conditioning design work in the UK is delivered by directly employed, REFCOM F-Gas registered engineers — never sub-contracted. Every job is priced as a fixed written quote with no hidden extras and finished with a same-day service report covering operating pressures, temperatures, electrical readings and any refrigerant added or recovered.
We work across offices, restaurants, hotels, retail units, schools, clinics, gyms, server rooms and light industrial sites in the UK — from a single split system to multi-floor VRF estates — to manufacturer specification and BESA SFG20 maintenance standards.
Common issues we resolve include weak cooling or heating output, refrigerant leaks, iced coils, blocked condensate drains, error codes and lockouts, noisy fans and compressors, failed PCBs, contactors and capacitors, dirty filters, and controls that no longer match how the building is used.
What's Included in Commercial HVAC & Air Conditioning Design
- Room-by-room heat load and cooling calculations
- System selection: split, VRF, chilled water or hybrid
- Ductwork, pipework and plant space layouts
- Design drawings and specifications for tender
How Commercial HVAC & Air Conditioning Design Works
- 1
Get in touch
Call or book online for commercial hvac & air conditioning design anywhere in the UK. We confirm scope and a fixed price.
- 2
Engineer attends
An F-Gas registered HVAC engineer attends at the agreed time, fully equipped and qualified for the work.
- 3
Work completed & reported
Work is completed to manufacturer and industry standards (CIBSE, BESA, F-Gas) and you receive a written service report on the day.
Commercial HVAC & Air Conditioning Design: Quick Answer
We offer commercial HVAC and air conditioning design, including heat load calculations, system selection, and layouts for building control and tender, from £450 + VAT per scheme. Our F-Gas certified engineers and TM44 accredited assessors provide services across London and the M25, with same-day or next-day appointments available seven days a week, 07:00–21:00.
Common Problems We Solve
Unsure about HVAC system needs
Our F-Gas certified engineers expertly handle heat load calculations and system selection. We provide detailed designs, including ductwork and pipework layouts, ensuring the optimal HVAC solution for your commercial space in London and the M25, ready for building control and tender.
Need compliant AC designs
We deliver comprehensive commercial air conditioning designs that meet all regulatory requirements, including drawings ready for building control and tender. Our TM44 accredited assessors ensure your system design is efficient and compliant, supported by transparent, fixed written quotes and no call-out fee.
Urgent design project
For urgent commercial HVAC and air conditioning design needs, we offer same-day and next-day appointments. Our services are available seven days a week, from 07:00 to 21:00, ensuring your project progresses swiftly with professional heat load calculations and system layouts by F-Gas certified engineers.
Concerned about costs
Our commercial HVAC and air conditioning design services start from a fixed price of £450 + VAT per scheme, ensuring transparency. We provide fixed written quotes with no call-out fee, allowing you to budget effectively for your heat load calculations, system selection, and detailed design requirements.
What People Ask About Commercial HVAC & Air Conditioning Design
What is a HVAC design engineer?
An HVAC design engineer specialises in planning and creating heating, ventilation, and air conditioning systems. This includes heat load calculations, selecting appropriate equipment, and designing ductwork and pipework layouts, ensuring efficient and compliant installations for commercial properties across London and the M25.
What is VRF and VRV in HVAC?
VRF (Variable Refrigerant Flow) and VRV (Variable Refrigerant Volume) are advanced HVAC technologies that allow for precise temperature control in different zones of a building. Our F-Gas certified engineers can incorporate these systems into commercial air conditioning designs, providing flexible and energy-efficient solutions for properties in our service area.
Which is better, split AC or VRF?
The choice between split AC and VRF systems depends on the specific needs of a commercial property. Split ACs are good for individual zones, while VRF offers greater energy efficiency and zone control for larger or multi-room commercial spaces. Our design service helps you select the optimal system based on heat load calculations.
What is a Daikin VRF system?
A Daikin VRF system is a type of Variable Refrigerant Flow air conditioning system manufactured by Daikin, known for its advanced technology and energy efficiency. These systems are often chosen for commercial applications due to their ability to provide simultaneous heating and cooling to multiple zones, which we can incorporate into our designs.
What does commercial air conditioning design involve?
Commercial air conditioning design involves heat load calculations, system selection (e.g., concealed, ducted, wall-mounted), and creating detailed ductwork and pipework layouts. Our F-Gas certified engineers produce drawings ready for building control and tender, ensuring an optimal and compliant system for your premises in London and the M25.
Do I need planning permission for commercial AC?
For commercial air conditioning installations, planning permission may be required, particularly for external units or significant alterations to a building's appearance. Our design service includes preparing drawings ready for building control, assisting with the necessary documentation to ensure compliance within London and the M25.
Can you design for ducted air conditioning?
Yes, our commercial air conditioning design service includes comprehensive plans for ducted air conditioning systems. Our F-Gas certified engineers create detailed layouts for ductwork and pipework, ensuring efficient and aesthetically integrated climate control for your premises. This service is available across London and the M25.
How are air conditioner design calculations performed?
Air conditioner design calculations involve detailed heat load assessments, considering factors like building size, insulation, windows, occupancy, and equipment heat output. Our F-Gas certified engineers use these calculations to accurately size systems and select appropriate equipment for optimal performance and efficiency, producing drawings for building control.
Key Terms
- F-Gas certified engineers
- TM44 accredited assessors
- Refcom
- HVAC
- refrigeration
- heat load calculations
- system selection
- ductwork layouts
- pipework layouts
- building control
FAQs about Commercial HVAC & Air Conditioning Design
How much does commercial hvac & air conditioning design cost in the UK?+
Pricing for commercial hvac & air conditioning design in the UK depends on system size, access and equipment specification. We always provide a fixed written quote before any work starts.
What qualifications do your engineers hold for commercial hvac & air conditioning design?+
Yes. Every engineer is REFCOM F-Gas registered to the appropriate category (I–IV) for refrigerant-handling and is qualified to deliver commercial hvac & air conditioning design in the UK.
How quickly can you attend in the UK?+
For most the UK jobs we attend the same day or next day. Emergency HVAC call-outs are available 24/7 across the UK and surrounding areas.
Do you provide a service report or certificate on completion?+
Yes — every visit ends with a full service report covering the readings taken and any parts fitted, plus an F-Gas logbook entry where refrigerant is involved and any applicable commissioning or compliance certificate.
Do you cover all sectors in the UK?+
Yes. We deliver commercial hvac & air conditioning design across offices, retail, restaurants, hotels, schools, hospitals, data centres and industrial sites in the UK and surrounding areas.
Related HVAC & Refrigeration Services
Our engineers can carry out any of the works below in the same visit across the UK.
HVAC Fault Finding & Diagnostics
Expert HVAC fault finding and diagnostics in the UK — when another contractor is stuck, we find the fault. Refrigerant, electrical, controls and BMS.
HVAC Preventive Maintenance
SFG20-aligned HVAC preventive maintenance in the UK — scheduled visits, asset registers and digital service reports for every plant item on site.
HVAC Controls & Thermostat Installation
HVAC controls and thermostat installation in the UK — smart, programmable, Wi-Fi and BMS-linked controls for offices, retail and homes.
BMS HVAC Controls Service
Building Management System (BMS) HVAC controls service in the UK — Trend, Tridium/Niagara, Cylon, Distech and Honeywell systems supported.
Data Centre Cooling Systems
Data centre cooling design, installation and maintenance in the UK — CRAC, in-row, rear-door heat exchangers and free-cooling chillers under strict SLAs.
Commercial HVAC Services
Full-service commercial HVAC in the UK — system design, installation, planned maintenance (PPM) contracts and 24/7 emergency repairs for offices, retail, hospitality, schools and industrial sites.
Ready to Book Your Commercial HVAC & Air Conditioning Design?
Book a commercial hvac & air conditioning design, maintenance visit or inspection with our commercial HVAC engineers.
- ✓ Qualified Commercial HVAC Engineers
From £450 + VAT per scheme