How it works

The Function & Fabric Method

Measure. Improve. Install. Tune. Return.

Five steps, in that order, on every house.

(01)

Measure

Room-by-room heat loss and a fabric survey before anything is specified. This is where we find out what your house actually needs — and, just as often, what it doesn't. Most of the money wasted on retrofit is spent doing the right things in the wrong order.

(02)

Improve

We look at what insulation can be added within grant parameters, and we do it before sizing the machine. Every improvement to the fabric shrinks the heat pump you need, the cost of installing it, and the cost of running it for the next twenty years. Funding is arranged through Whole House Heating Ltd, and we'll tell you plainly what's available and what it covers.

(03)

Install

The heat pump, the cylinder, the emitters, the pipework — designed around a house that now loses less heat, and around keeping your storage rather than consuming it.

(04)

Tune

Weather compensation, flow temperatures, hot water scheduling, tariff setup. This is where a system stops being correct and starts being comfortable. Most installers skip it.

(05)

Return

A visit after your first winter, when you actually know how the house feels. Adjustments made with a year of living in it behind you.

(06) Why the order matters

Most installers start at step three. That's why so many heat pumps are oversized, overpriced and disappointing — and why so many quotes include work that a calculation would have shown was unnecessary.

Start with a Home Heat Plan — [£X]

Room-by-room heat loss, a fabric and moisture survey, and a sequenced plan for your house. Yours to keep, whoever you use afterwards.