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Thermal bridging calculation prices

Clear fees for standard 2D junctions, with the same helpful service whether you're planning ahead or working to a deadline.

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First distinct junction
£150
Each additional detail on the same project
£100
Variation of an existing model
£50

What would my project cost?

2 distinct details

£250

On the same project, within the agreed standard 2D scope.

5 distinct details

£550

On the same project, within the agreed standard 2D scope.

10 distinct details

£1,050

On the same project, within the agreed standard 2D scope.

Details and variations

We charge for the distinct construction detail, not each place it occurs around your building. Ten identical window jambs need one model, rather than ten separate calculation fees.

A flat roof with an overhang and one with a parapet are two different details. A different insulation thickness in an otherwise reusable model is usually a variation.

Variations are £50 each. Reasonable minor revisions are included in the original scope, and corrections to our work are free. We'll agree any additional fee before carrying out a substantial redesign.

What's included?

  • The calculated Psi-value and fRsi assessment.
  • An illustrated report with the detail, material properties, assumptions and results.
  • Advice and reasonable minor revisions.

We'll review the drawings and confirm the total and delivery date before starting. Details requiring 3D modelling need a different scope, which we'll identify during that review.

No emergency surcharge. Tell us your deadline and we'll let you know what we can do.