What documents should you keep after installing a ground source heat pump?
Ground-loop permits, drilling records, MCS paperwork, and building control evidence that sellers should retain for a future sale in England and Wales.
Published: 18 Apr 2026 · Updated: 18 Apr 2026 · 11 min read
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What is different about ground source
Ground source heat pumps involve collector pipework or boreholes that interact with land, access rights, and sometimes environmental regulation. Buyers (and their lenders) may ask how installation was authorised and how the system is isolated for maintenance.
Core documents
MCS and installer pack: include MCS certificate, design assumptions, and as-fitted schematics where available.
Building control: keep completion documentation for the energy system and any related electrical work.
Groundworks evidence: retain records from loop or borehole installation, pressure tests, and any warranty on ground collectors.
Rights and access: if pipework crosses boundaries, keep copies of relevant consents or deeds references your conveyancer confirmed.
Presentation to buyers
A well-labelled file reduces anxiety. Use a short cover note with install date, installer name, service history, and links to user manuals.
Using Property Passport UK
Start from the address on [Property Search](/search). When you own or manage the home, [claim your Property Passport](/claim/start) and upload Documents with clear dates and sources. Browse more explainers in the [Property Guides library](/guides). This article is general information, not legal, tax, mortgage, or survey advice.
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