Underfloor Heating Commissioning
Underfloor heating commissioning is the set-up and balancing work that makes a wet underfloor heating system run properly. It ensures each circuit gets the right flow, temperatures are stable, and the controls respond as they should, helping you avoid cold spots, noise, and wasted energy.
More information
What underfloor heating commissioning covers
Commissioning focuses on performance, safety checks, and correct settings across the whole wet UFH system.
- Inspecting the manifold, pipe circuits, flow meters and actuators
- Purging trapped air and confirming circuits are flowing correctly
- Setting and balancing flow rates across all loops for even heat output
- Checking pump operation and, where fitted, the mixing valve and temperature blending
- Verifying thermostats, wiring centre and control responses (zone by zone)
- Taking temperature readings to confirm the system is delivering low, steady heat
- Identifying common issues like stuck actuators, blocked strainers, or incorrect settings
- Providing clear notes on key settings for future servicing or adjustments
When commissioning is most useful
- After a new underfloor heating installation or major renovation
- If some rooms feel cooler than others, or warm-up times vary widely
- If the system is noisy, frequently needs bleeding, or pressure is unstable
- When running costs seem high for the level of comfort achieved
- Before handing a property over to tenants or reopening a small commercial space
How the service is delivered
First, the system is checked for correct layout and control operation, then each circuit is assessed at the manifold. Flows are adjusted and balanced so longer and shorter loops heat evenly, and temperatures are verified to confirm the system is working in its intended low-temperature range. If faults are found, you will be told what is causing them and what options you have to put them right.
After commissioning
You receive a clear handover of settings and what to monitor over the next few heat cycles. If you later change room use, floor finishes, or control schedules, a re-balance can help keep comfort consistent. Periodic checks also help maintain efficiency and reduce the chance of call-outs during colder weather.