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Case study (anonymised)

ASHP retrofit case study: one report for design and install

A detached retrofit job where the installer did not need more theory. They needed the site detail laid out clearly enough for design and install to pick it up fast.

Project typeASHP retrofit survey
LocationNorth England (generalised)
Installer profileGrowing regional installer team
Property typeDetached retrofit property

Project summary

The problem was not missing information. It was slow reading. Previous jobs had the detail, but too much of it had to be explained again before design could move.

What was captured

Layout

Floor plans, room detail, and route constraints grouped where the team would expect to find them.

Electrical

Consumer unit, incoming supply, and service photos kept in the same report instead of being chased afterwards.

Heating context

Emitter and cylinder detail recorded clearly enough for design and install briefing.

Constraints identified on site

Evidence the installer could check

Report extract

The anonymised sample report shows how floor-plan pages, room references, and site photographs are grouped so design can review the same evidence as the office.

Electrical record

Incoming supply, consumer-unit context, and visible constraints were recorded as photos and notes rather than left as verbal handover.

Design handoff

Cylinder, emitter, external-unit, and route notes were kept in one report, reducing the risk that design and install worked from different assumptions.

A report the team could read quickly

The survey landed in the same layout the installer already knew, with Checked before issue and one shared portal record for the people pricing, designing, and fitting it.

What changed for the installer

Office

The quote team could check the same floor-plan, electrical, and plant-location evidence without rebuilding the survey from messages.

Design

Design review started from documented constraints rather than loose photo sets or a second explanation from the surveyor.

Install

Install planning had visible route and location evidence before the job moved from survey to scheduling.