What might a DSEAR assessment cost?
There is no official tariff. A useful estimate has to reflect the number of sites, processes, hazard types, available drawings, survey access and whether hazardous area classification is likely.
Check my situationPrice the scope, not the report title
Two quotations both called a ‘DSEAR assessment’ can contain materially different work. The main buying decision is whether each provider has allowed for the same site access, process review, technical analysis and deliverables.
- Is a site survey included, and how many locations or process areas are covered?
- Are zoning, drawings, equipment review, travel and report revisions included or excluded?
- Does the price assume that substance data, layouts and prior records are complete and current?
What to do next: Give every bidder the same brief and ask for assumptions, exclusions and optional work in writing. Compare the scope line by line before comparing the total.
How the Vendor Atlas estimate works
The calculator starts with a visible site-size allowance, then adds fixed amounts for additional sites, multiple hazard types, specialist processes, combustible dust and design-stage review. The result is a planning range—not a market tariff or supplier quote.
The model is deliberately deterministic so a buyer can see why the range changed. It does not infer a price from prose, use an LLM or quietly favour a listed supplier. The configuration can later be recalibrated against real comparable quotes.
What usually increases effort
Complexity tends to rise with multiple processes, poor records, several release sources, dust explosibility questions, hazardous area classification, equipment suitability checks and new-installation design input.
Travel and site access can matter, but technical uncertainty is often more important. A well-prepared substance inventory, layout and process description can reduce avoidable scoping time without reducing the assessment work that is genuinely needed.
Compare like with like
Ask each provider to state exactly what the price includes and what would trigger additional fees.
- Site visit, travel and number of survey days
- Substance inventory and process review
- Hazardous area classification and drawings where required
- Equipment suitability or ignition-source review
- Prioritised actions, draft review and final report
- VAT, testing and follow-on design or remedial work
Published ranges are a sense-check, not a market average
Vendor Atlas recalibrated its first model on 31 August 2026 against three provider-published ranges. They are commercial sources and their inclusions differ, so the calculator uses them as an order-of-magnitude boundary—not as proof of the price a competitive tender will achieve.
- OTECSA Consulting : publishes £1,500–£3,500 for a small/simple site, £3,000–£6,000 for mid-sized work and £5,000–£10,000 for complex work.
- DSEAR RA Ltd : publishes around £2,000–£3,000 for small single-site work, £3,500–£4,500 for most assessments and £5,000–£10,000 for larger/complex sites.
- York Green Safety Partners : publishes £3,000–£15,000+ for a scope it says includes HAC drawings and an ATEX equipment audit.
What is still missing: awarded quote data normalised to the same brief. Vendor Atlas will not describe the model as a market benchmark until that evidence exists.
Use the comparable-quote standard