When it comes to new-build projects, there are few systems as important as the HVAC. It plays a critical role in keeping the building comfortable, energy efficient, and compliant with regulations. But with so much to plan, it’s easy for key details to be missed in the early design stages.

At iACS, we work closely with consultants, specifiers, and contractors across the UK to supply HVAC for new buildings that performs exactly as it should—right from the start. We know the difference the right component can make, which is why we stock only proven, high-quality brands like Belimo and Siemens. If you're about to start a new HVAC installation, here's your checklist of iACS essentials that will help you deliver a reliable and efficient system.

1. Actuators That Perform Under Pressure

No HVAC installation checklist is complete without actuators. These small components have a big job: they control the flow of air and water through valves and dampers, helping to maintain the perfect balance of temperature, pressure, and ventilation.

We recommend Belimo actuators for their precision, durability, and ease of integration. Whether you’re looking for fail-safe damper actuators, fast-running options, or modulating control units, we’ve got stock ready to go. And if you're unsure what model fits your spec, our expert team is just a phone call away.

2. Valves for Control and Safety

When it comes to regulating flow and pressure, valves are vital. We supply a wide range of control valves, zone valves, and pressure-independent control valves (PICVs) that are perfect for balancing complex HVAC systems in modern buildings.

Belimo and Siemens valves are known across the industry for their reliability and smooth operation. They also help ensure compliance with energy performance targets and can be easily incorporated into Building Management Systems (BMS).

3. Sensors That Support Smarter Buildings

In a new building, getting accurate readings on temperature, humidity, CO2, and pressure is essential. That’s where sensors come in. At iACS, we stock a full range of room, duct, and immersion sensors that provide real-time data for smarter HVAC control.

Good sensor placement and configuration can dramatically improve energy efficiency and indoor air quality (IAQ). So it’s worth choosing sensors that are not only accurate but also built to last. Our sensor options integrate easily with most BMS platforms and are designed to support long-term performance.

4. Weather Sensors for External Conditions

If you're managing a commercial build with external air handling or environmental monitoring, don't forget to include weather sensors in your HVAC spec sheet. Our Belimo and Siemens external sensors monitor temperature, wind, rain, and sunlight to help systems respond intelligently to changes in outside conditions.

They play a big part in optimising ventilation and cooling, especially in high-performance or sustainable buildings. If comfort and compliance are a priority, outdoor data is just as important as indoor.

5. Mounting Kits and Accessories

It's often the small items that cause delays on-site. That’s why we stock a full range of mounting kits, brackets, couplings, and other accessories to keep your HVAC installation running smoothly.

When ordering iACS HVAC products, we always recommend reviewing your full parts list with us to ensure nothing gets left out. We can help you build a complete, installation-ready kit tailored to your project’s needs.

6. Fire and Smoke Damper Controls

Safety is non-negotiable in any new build. Fire and smoke damper actuators are essential for compliance with UK building regulations. Our actuators are designed for reliability in emergency conditions, ensuring dampers close properly in the event of a fire or smoke detection.

We supply Belimo fire damper actuators that are CE marked and tested to the highest standards. If your project includes car parks, corridors, or plant rooms, make sure these components are on your HVAC installation checklist.

7. Energy Valves and Flow Control

With energy efficiency playing a bigger role in building design, we recommend considering energy valves and dynamic flow controls. Belimo’s Energy Valve is a smart device that combines flow measurement, control, and energy monitoring in one compact unit.

These solutions are ideal for commercial buildings looking to meet stringent energy targets or for integration into energy performance contracts (EPCs). With remote access and data logging features, they provide long-term visibility and control over energy use.

Why Choose iACS for Your HVAC Installation?

We’re not just a supplier. At iACS, we understand the pressures of new-build schedules, compliance requirements, and energy efficiency targets. That’s why we offer more than just top-tier components.

Our team brings decades of experience and technical know-how. We can review your HVAC spec sheet, recommend alternatives, and ensure everything is delivered on time and ready to install. If a product needs configuring or you're facing integration issues with your BMS, we’re here to help.

And because we hold many of our best-selling Belimo install essentials in stock, you can rely on fast dispatch and dependable availability.

Make Your New Build Smarter, Safer and More Efficient

A successful HVAC system doesn’t start on site – it starts in the planning. With iACS by your side, you can be confident that your new building is equipped with smart, safe, and reliable solutions that make long-term sense.

Explore our full range of iACS HVAC products online or speak to our technical team for personalised support with your next specification. We’re here to help you get it right first time.