Start with the survey: why sequencing matters
The single most important procedural rule in any asbestos project is this: commission the survey before anything else, and commission it from a contractor who will not be doing the removal. An asbestos survey is the diagnostic tool — it tells you what materials are present, where they are, in what condition, and what action is recommended. Without a survey, any removal quote is a guess, any management decision is uninformed, and any regulatory compliance claim is indefensible.
The correct sequence for any project involving a building that may contain asbestos is: survey first, then interpret the results, then decide on the management strategy (removal or encapsulation), then obtain removal quotes based on the survey's identified ACMs, then select a removal contractor, then commission independent air monitoring. Telescoping these steps — for example, asking a removal contractor to survey and remove in the same contract — creates a conflict of interest that compromises every subsequent step.
Never commission removal without a survey
Commissioning asbestos removal without a prior survey is a regulatory offence in most jurisdictions — a refurbishment and demolition survey is a legal prerequisite for intrusive work in any pre-ban building. It is also operationally reckless: the remover does not know the full scope of what they are removing, and you cannot verify the job is complete.
Credentials to verify for asbestos surveyors
An asbestos surveyor must be both personally competent and employed by an accredited organisation. These are distinct requirements and both must be verified independently. A company with ISO/IEC 17020 accreditation employing an uncertified individual does not satisfy the requirement; nor does a highly qualified individual working for a non-accredited company.
- Company accreditation: ISO/IEC 17020:2012 accreditation from the relevant national accreditation body — UKAS in the UK, COFRAC in France, ENAC in Spain, DAkkS in Germany. The accreditation certificate must explicitly include the scope "asbestos surveys." Ask for the certificate number and verify it on the accreditation body's public register.
- Individual certification: the surveyor must hold personal competence certification. In the UK: BOHS P402 (Building Surveys and Bulk Sampling for Asbestos) or membership of the Asbestos Professionals Register. In France: certification under the Certification des Opérateurs de Repérage scheme. In Spain: individual competence through INSST-approved training records.
- Laboratory accreditation: samples collected during the survey must be analysed by a laboratory accredited to ISO/IEC 17025:2017 for asbestos bulk analysis by polarised light microscopy (PLM). The lab's accreditation number should appear on every analytical certificate in the final report.
- Independence from removal: the surveyor's company should not also be quoting for the removal work. If the same company performs both roles, the conflict of interest must be declared in writing and managed with a formal separation of personnel.
Credentials to verify for removal contractors
Asbestos removal of high-hazard materials is licensed work in most jurisdictions, and the licensing requirements are strict. A contractor without the correct licence cannot legally perform licensed removal work.
- United Kingdom: an HSE asbestos removal licence issued under CAR 2012 Regulation 8 is required for work with asbestos insulating board, lagging, sprayed asbestos or any work that would release significant fiber quantities. The licence must be on display at the work site. Verify on the public HSE licensed contractor register at hse.gov.uk/asbestos/licensing.
- France: QUALIBAT certification under category 1512 (DĂ©samiantage) or equivalent Certibat certification. All workers must be individually certified under the Formation Amiante Sub-Section 3 or Sub-Section 4 scheme.
- Spain: inscription in the RERA (Registro de Empresas con Riesgo de Amianto) maintained by the Ministry of Labour. The contractor must also hold a current Plan de Trabajo approved by the Autoridad Laboral for the specific project.
- Germany: DGUV certification and compliance with TRGS 519. Contractors carrying out work on highly friable materials must hold specialist qualifications under Appendix 4 of TRGS 519.
- All jurisdictions: the contractor must hold public liability insurance (typically €2–10 million for commercial work) and employer's liability insurance. Request the certificate with expiry dates, not just a declaration that insurance exists.
How to verify credentials independently
Do not rely on the contractor's own declaration of their credentials. All major accreditation and licensing registers are publicly accessible, and verification takes less than five minutes:
- UK HSE licensed asbestos removal contractor register: hse.gov.uk/asbestos/licensing/index.htm — searchable by company name or postcode.
- UKAS accreditation register (UK): ukas.com — search "17020" and "asbestos" for accredited surveying bodies; "17025" and "asbestos" for laboratories.
- QUALIBAT (France): qualibat.com — search by certification number or company name.
- COFRAC (France): cofrac.fr — search accredited inspection and testing bodies.
- RERA (Spain): maintained by the Ministerio de Trabajo y EconomĂa Social. Contact the relevant Autoridad Laboral for the specific province.
- ENAC (Spain): enac.es — search for ISO 17020 and ISO 17025 accredited bodies.
- DAkkS (Germany): dakks.de — searchable by accreditation number or scope.
Always verify before signing
Fraudulent or lapsed accreditation claims are not unknown in the asbestos industry. The five minutes you spend verifying credentials on a public register can protect you from being jointly liable for unlicensed work, facing regulatory enforcement, or having survey reports rejected by regulators, insurers or property purchasers.
What to ask for in quotes
A compliant quote should be detailed enough to compare against other contractors on a line-by-line basis. Ask every contractor to provide the following in their quote:
- The contractor's licence or registration number and expiry date.
- The name and individual certification number of the site supervisor and the licensed operatives.
- A clear statement of scope referencing the survey report number and the specific ACMs included by type, location and quantity.
- Itemised costs for enclosure erection, labor, air monitoring (with the name and accreditation of the independent monitoring body), waste packaging, waste transport and waste disposal.
- The name of the landfill facility, its Environmental Permit or national equivalent, and the EWC codes for the waste.
- The planned date of regulatory notification and confirmation that the required notice period will be observed.
- A copy of the method statement and risk assessment (safe system of work) that will govern the project.
- Professional indemnity insurance details including insurer, policy number, coverage amount and expiry date.
The conflict-of-interest trap
The most common structural conflict of interest in asbestos contracting is the surveyor-remover combination: a company that carries out the asbestos survey and then quotes for the removal based on its own findings. The surveyor's commercial interest in generating removal revenue creates an incentive to find more asbestos, assess it as being in worse condition, and recommend removal rather than management.
A second common conflict is in air monitoring: removal contractors who provide their own clearance air monitoring are certifying their own work. The four-stage clearance procedure must be conducted by an independent, accredited analyst who has no commercial relationship with the removal contractor. A third, less obvious conflict occurs when a contractor offers a free or heavily discounted survey on condition they receive the removal contract — treat findings from these arrangements with particular caution.
The surveyor-remover conflict
In several EU jurisdictions and the UK, the same company is explicitly prohibited from both surveying and removing asbestos on the same project. Even where not explicitly prohibited, best practice requires complete separation. Commission the survey independently, then use the survey findings as the basis for competitive removal quotes from separate contractors.
Comparing quotes on equal terms
Asbestos removal quotes are only comparable if every contractor is quoting on exactly the same scope of work. Before requesting quotes, prepare a written scope document derived directly from the asbestos survey report, specifying: the survey report reference, the specific ACMs to be removed by type, location and quantity, all access constraints, the occupation status of the building, and whether reinstatement is included.
Send the identical scope document to all contractors simultaneously. When quotes are received, compare each cost category line by line — not just the total. Pay particular attention to waste disposal costs (these should be consistent between contractors for the same volume and EWC code) and air monitoring costs (these should reflect an independent analyst, not an in-house service).
Contract terms to insist on
Before signing any asbestos removal contract, ensure the following terms are explicitly included:
- A clear scope of work referencing the survey report number and the specific ACMs, quantities and locations being removed.
- Milestone payments tied to completion stages — typically 30% on contract signing, 40% on completion of removal, and 30% on receipt of the clearance certificate and waste documentation.
- A requirement to provide the complete waste documentation pack (signed consignment notes, landfill receipts) as a condition of final payment.
- A requirement for independent air monitoring clearance — naming the specific analyst or laboratory — before the enclosure is struck.
- A requirement to maintain the applicable national licence or registration throughout the contract period, with immediate notification to the client if it lapses.
- A defects liability period of no less than 12 months for any reinstatement or encapsulation work.
- A clause requiring all workers on site to hold current individual certification relevant to their role.
- Compliance with all regulatory notification requirements at the contractor's responsibility, with confirmation in writing when notification has been submitted.
References, track record and site visits
Before committing to a contractor for a significant project, ask for at least three references from comparable projects completed in the previous 12 months, with contact details for the commissioning client. Ask references specifically whether the contractor completed on time, whether all documentation (clearance certificate, waste consignment notes) was provided at conclusion, whether any regulatory notifications or incidents occurred, and whether they would re-commission the contractor.
For major projects, ask to visit one of the contractor's current sites to observe their working practices. A competent, legitimate contractor will have no objection to a supervised site visit. A contractor who refuses, or who cannot provide references from comparable projects, should be treated with caution.
The three-step credential check
Before accepting any quote: (1) verify the company's licence or accreditation on the relevant public register; (2) ask for and verify the named individual's certification; (3) ask for and verify the laboratory's ISO 17025 accreditation number. Any contractor who cannot satisfy all three steps within 24 hours of being asked should be removed from consideration.