Check the company and applicable certification through the relevant official registers, and ask who will design, install and commission the system. Read the written scope, payment schedule, warranties and complaint arrangements. GOV.UK explains MCS certification and consumer protection schemes for heat pump installers. Registration is useful evidence, but you still need a clear design, contract and realistic performance assumptions.
Join the discussion: Which part of the proposal is unclear: design, accreditation, payment terms or aftercare?
Suggested next step: Shortlist suitable installers and compare documented proposals before paying.
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