Octopus
Avoid as installer in my experience
Go via HeatGeeks
Bet the price is a lot more via HG and that’s is what most folk look at these days
They use ‘better’ (more expensive) equipment and offer a guarantee on ‘cop’. They are far more thorough with surveys and calculations, but you’re right you pay for it.
@konastab01 started
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Avoid as installer in my experience
Go via HeatGeeks