Written up properly, not just photographed.

The brief. A four bedroom 1930s property with a solid concrete ground floor, tiled hallway and a kitchen extension the owners had no intention of disturbing. They wanted underfloor heating throughout the ground floor without lifting a single finished surface they cared about.

Our approach. A room by room heat loss calculation set the pipe spacing and the design flow temperature at 38 degrees. We milled channels directly into the existing slab using dust extracted equipment, laid 16mm pipe into the channels, reinstated and pressure tested before any floor finishes went back down. Zoning was split across five circuits so the hallway, kitchen, dining room, lounge and utility could each hold their own setpoint.

The result. Floor levels rose by a matter of millimetres, so no doors were trimmed and no skirtings were replaced. The system runs at a low enough flow temperature to be paired with an air source heat pump later, which was the owners' stated five year plan.

3 working days on site

The brief. A first floor renovation in an occupied family home where milling was not an option because the substrate was suspended timber rather than concrete. The brief was warmth underfoot in the bathroom and two bedrooms with minimal build up.

Our approach. We specified a 15mm low profile overlay panel system laid straight over the existing deck. Because the panels add so little height, the existing door set stayed in place. Pipe was routed to a compact manifold sited in the airing cupboard, keeping pipe runs short and pressure loss low.

The result. Total floor build up of 15mm plus finish. The bathroom now reaches temperature well before the rest of the floor because of tighter pipe spacing under the tiled area, which was a specific request from the client.

2 working days on site

The brief. An existing underfloor heating system installed by others, running the entire ground floor from one thermostat in the hallway. The living areas were overheating while the far end of the property never warmed up, and running costs were higher than they should have been.

Our approach. No pipework was replaced. We rebuilt the manifold arrangement, fitted actuators per circuit, balanced every loop against the original design flow rates and installed Heatmiser Neo zonal controls with a stat per zone. Each circuit was flushed and pressure tested as part of the works.

The result. Even temperatures across the ground floor and a noticeably lower flow temperature required to hold them. This is the most common problem we are called to on other installers' systems, and it is almost always a balancing and control issue rather than a pipework fault. It falls under our fault diagnosis and repair service.

1 working day on site

The brief. A self build where the client had already committed to an air source heat pump. The underfloor heating needed to be designed for a 35 degree flow temperature rather than retrofitted to it afterwards.

Our approach. Pipe centres were tightened to 150mm throughout the living spaces and insulation was specified to sit ahead of the minimum, so the design could carry the load at 35 degrees. Circuits were laid, clipped and pressure tested before the screed pour, and the manifold was positioned centrally to keep loop lengths even.

The result. The heat pump runs at its design flow temperature year round rather than being pushed up in cold weather, which is where the efficiency gains actually come from. Full detail on how that pairing works is in our heat pumps versus gas boilers guide service.

4 working days on site across two visits