Who we help · Commercial and public buildings
Places of worship and heritage buildings
Usual measures: Breathable insulation, secondary glazing, heating controls. Watch-out: Consents and breathable materials.
Priced after survey
Heat loss survey: commercial building
From £750
Room-by-room or zone heat loss for heating and HVAC design.
Send a commercial enquiryCredited against your works if you go ahead.
Read the full guide: Commercial
Open the guideAt a glance
Construction, heat loss and watch-outs
- Typical construction
- Historic fabric
- Where heat is lost
- Walls, roof, windows
- Usual measures
- Breathable insulation, secondary glazing, heating controls
- Watch-outs
- Consents and breathable materials
Consents and breathable materials
Listed buildings need listed building consent, conservation areas and Article 4 directions can restrict changes to the outside, and solid walls need breathable materials after a moisture risk check.Measured after survey
Commercial buildings are measured and priced per m² after a survey, and works are planned around how the building runs.Recommended
The insulation we usually recommend
Breathable IWI for period homes
Wood-fibre, cork or hemp-lime systems that let solid walls stay dry.
Wood-fibre insulation
Breathable boards and batts with good summer heat protection and low carbon.
Sheep's wool insulation
Natural insulation that handles moisture, popular with period owners.
Lime render
Breathable lime render and lime plaster for older solid walls.
Funding and VAT
0% VAT on energy-saving materials applies to homes, so commercial work is normally standard-rated. We'll set out any funding that may apply after the survey.Begin your project
Planning works on a commercial building?
Tell us about the building and we'll arrange the right survey, then a priced, phased proposal.