Verified update: ONS reported on 15 October that construction output in Great Britain fell by an estimated 1.0% in the three months to August 2026. Monthly output fell by 0.2% in August. These are estimates for the wider industry, not a measure of ventilation workload.
Read the period and geography correctly
The bulletin covers Great Britain: England, Scotland and Wales. Over the three-month period, new work fell by 1.4% and repair and maintenance by 0.3%. In August alone, repair and maintenance increased by 0.4%. The release also revises earlier estimates. A monthly movement and a three-month movement therefore describe different comparisons.
Cliventa commentary: check the live package
A national output figure cannot establish whether an installation team is available for a particular hotel, office or fit-out package. Nor does it establish the price of ductwork, the readiness of a workface or a supplier's fabrication lead time. Buyers should keep those project checks separate from their market briefing.
Before reissuing a ventilation enquiry, compare the tender programme with the latest site programme. Record which areas can actually be released, what information is approved and whether access depends on another trade. If a proposed start has moved, ask for an updated availability review rather than relying on an earlier quotation.
Four tender checks before refreshing the price
- Confirm the enquiry revision.Issue a dated drawing and specification register so all bidders price the same information.
- Separate dates from assumptions.Identify the required start, phased access and any client decisions still outstanding.
- Check the supply interfaces.State who procures ductwork, fans, supports and terminals, and who confirms delivery dates.
- Record quotation validity.Ask each bidder to state the period and conditions under which its offer remains available.
Compare offers on a common scope
A lower headline price is difficult to evaluate if one offer assumes unrestricted access and another includes repeated mobilisation. Use a common clarification schedule for access equipment, unloading, storage, fire interfaces, testing responsibilities and handover records. The ventilation scope-before-award guide can help organise that discussion.
For a ductwork installation package, send the actual project information with the enquiry. Treat market statistics as context for commercial planning; use project-specific confirmations to agree the package. This commentary is a procurement aid, not a forecast of prices or a promise of labour availability.
Primary source and review date
Read the official source (published 15 October 2026; reviewed 16 October 2026). Check the source for subsequent updates.