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Heat loss

Heat loss calculations with assumptions made visible

Produced to the scope agreed at booking, using inputs captured from the site pack.

We document inputs and assumptions so installers and homeowners can understand the basis of the result.

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Scope and timeline are confirmed when you book.

Survey professional using measurement tools during a site assessment

Measured inputs, documented assumptions

Heat loss outputs are only as useful as the inputs. We document what was measured and what was assumed—so the basis of the result is easy to understand.

Clarity

What you can expect

We keep it evidence-led and explicit about what was used as an input.

Inputs

Inputs captured from the site pack

  • Measurements relevant to the booked scope
  • Notes and photos to support key assumptions
  • Room-by-room context where applicable
Assumptions

Assumptions documented

  • Assumptions shown clearly in the pack
  • Constraints made visible
  • Designed to reduce follow-up questions
Handoff

Installer-ready structure

  • Consistent layout
  • Evidence placed next to decisions
  • Built for design → install → sign-off workflows
The standard

Calculations you can stand behind

Truth-safe outputs: scope agreed at booking, inputs documented, assumptions visible.

Structure

Standardised, room-by-room outputs

  • Room-by-room context where applicable
  • Consistent presentation for installer handoff
  • Designed to reduce follow-up questions
Assumptions

Inputs and assumptions made visible

  • Inputs captured from the site pack
  • Constraints and uncertainties documented
  • So results are explainable to the homeowner
Integrations

Less re-typing (coming soon)

  • Integration options with heat loss software
  • Consistent field structure for reliable inputs
  • Built for installer workflows
Request heat loss scope