A useful quotation separates product, subframe, insulation, membranes, trims, access and labour. A single square-metre figure can hide exclusions that reappear later.
Seven common cost drivers
- Access: scaffold, towers, permits and awkward boundaries.
- Wall condition: removal, disposal, levelling and structural repair.
- Insulation: thickness, continuity, fire performance and detailing.
- Subframe: timber or metal support, brackets and thermal breaks.
- Openings: windows, doors, vents, pipes and meters add cutting and trims.
- Geometry: corners, gables, curves and board direction increase labour and waste.
- Certification: design, building control and specialist evidence where required.
How to compare quotations
Give every installer the same drawing and specification. Ask for VAT, access, waste removal, trims, fixings, making good, warranties and exclusions to be stated. Check that the named product and complete build-up match the evidence supplied.
Use a range, not a promise
Our cladding calculator keeps material and installation assumptions visible. Use it to test scenarios before requesting project-specific quotations.