Cost guide

What does LEV testing cost?

LEV examination is usually priced around attendance, systems, hoods or extraction points, measurement complexity, available benchmark data and reporting. Floor area or employee count alone is a poor pricing basis.

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Decision checkpoint

Ask for the visit and point-count logic separately

A meaningful quotation identifies the number of complete LEV systems, connected extraction points, test conditions and report deliverables. If those counts are missing, a low headline figure may simply exclude part of the plant or rely on assumptions that will change on arrival.

  • List each fan/system and every hood or extraction point connected to it.
  • State whether commissioning data, diagrams and previous readings are available.
  • Identify access equipment, shutdowns, multiple shifts, recirculation and higher-complexity controls.

What to do next: Send every provider the same equipment schedule and request a fixed scope showing attendance, point counts, reporting, travel, VAT, retesting and remedial-work exclusions. Compare the deliverable before comparing the fee.

What normally moves the price

More systems create more complete physical and performance checks; more hoods create more measurements; missing benchmarks require additional investigation; complex filtration, recirculation, variable controls and access can extend the work.

  • Number of separately driven systems
  • Total hoods and test points
  • Availability of commissioning benchmarks
  • Complex controls or recirculated air
  • Travel, access, shutdown and reporting requirements

What the Vendor Atlas range includes

The calculator uses an attendance allowance, per-system amount, extraction-point increment, complexity allowance, missing-baseline allowance and additional-site amount. Each adjustment is displayed and the result is widened into a planning range.

The model is calibrated against a small number of provider-published simple-system figures. It is not a national average and it does not claim that a complex industrial system can be priced from those examples without scoping.

Keep repairs outside the comparison

The statutory examination identifies condition and performance. Filter replacement, fan or duct repair, hood redesign, balancing and retesting should be shown separately unless every bidder has been asked to include the same work.

A provider able to repair systems may be useful, but the commercial interest and examination conclusion should remain visible. Ask who makes the pass/fail judgement and how recommendations are quality reviewed.

Published price evidence

Published prices are boundaries, not a market average

Vendor Atlas uses these provider sources only to constrain the deterministic planning model. Dates, regions, inclusions and equipment differ, so the result is not a market benchmark or a live quotation.

What is still missing: awarded quote data normalised to the same asset schedule, access conditions and deliverables. The calculator shows every adjustment so it can be replaced cleanly as that evidence arrives.

Use the comparable-quote standard