Octopus Trusted Partners Explained (2026)

Octopus Trusted Partners is a vetted network of independent MCS-certified heat-pump installers that Octopus Energy routes its heat-pump customers to. Octopus doesn't directly employ the engineers who design or install the system - they curate which installation companies they recommend, handle the customer-facing quote journey, and integrate the installation with their heat-pump-friendly electricity tariffs (Cosy Octopus, Octopus Flux).

The structure has three components:

• Octopus Energy - handles the customer relationship, the heat-pump quote enquiry, the tariff-on-completion setup, and a small fraction of the in-house design work.
• Heat Geek - the most prominent named Trusted Partner, offering a structured nationwide installer network of MCS-certified installers under their Mastery / Elite / Mastery Engineer hierarchy. A meaningful share of Octopus quote requests are routed through Heat Geek's national partner list.
• Other independent MCS installers - smaller named brands and regional installer companies that Octopus has vetted and added to their partner list. These vary by region and over time.

This is structurally different from the single-brand model used by BOXT, Heatable, and Aira (more on those below), where the customer-facing brand directly employs the survey and install engineers.

Heat Geek is the most prominent and most-explicitly-named Trusted Partner in the Octopus network. The relationship is structural: Octopus has historically routed a meaningful share of heat-pump quotes through the Heat Geek installer network rather than spreading them evenly across many small independent partners. There are two practical reasons for this.

First, Heat Geek's installer-quality framework is unusually rigorous for the UK MCS market. Their Mastery / Elite / Mastery Engineer tiers add an extra layer of certification beyond the baseline MCS standard, covering specific competencies (low-flow-temperature design, weather compensation, system optimisation) that aren't formally part of the MCS exam. For a brand like Octopus that's selling heat pumps on tariff-coupled performance promises, partnering with a high-bar installer network reduces the risk of poor installs damaging the customer-perception narrative.

Second, the Heat Geek partner roster is unusually transparent. Their website lists installer partners by location and certification level, making it easier for an Octopus-routed customer to know exactly which company is going to do the install before committing. Compare this to the typical UK installer-network model where the brand is opaque and you only find out which company is showing up when the surveyor knocks on the door.

If you specifically want a Heat Geek installer through the Octopus quote journey, you can name-request one when filling in your enquiry. Octopus's routing engine will typically honour this if a Heat Geek partner covers your postcode.

Choose Octopus Trusted Partners if:

• You're already an Octopus electricity customer or planning to switch - the Cosy Octopus tariff is genuinely well-aligned with heat-pump usage patterns, and the in-house tariff transition is friction-free.
• You want the broader installer pool (BOXT and Aira are direct-employ models with smaller engineer footprints; Octopus's partner network has wider geographic coverage in some regions).
• You specifically want a Heat Geek installer - the Octopus journey is the most convenient way to access that network with one combined quote process.
• You're comfortable with the split-warranty model (installer handles install warranty, manufacturer handles unit warranty, Octopus handles tariff).

Choose a single-brand alternative if:

• You want a single warranty contact for everything heat-pump related - BOXT and Aira simplify this.
• You want standardised national pricing - BOXT in particular has clearer per-property-archetype pricing than a custom installer quote.
• You want vertically-integrated ongoing maintenance - Aira's subscription model includes long-term service that the Octopus + Trusted Partner model doesn't bundle.
• You're not switching to Octopus electricity and don't value tariff integration.

For a deeper comparison of the install models, see our UK installer rankings and our heat pump vs hybrid comparison.