Independent comparison
Alkali vs Enviro Technology Services (ETS) — UK MCERTS stack emissions testing compared
A neutral, factual comparison of Alkali Environmental Consultants and Enviro Technology Services (ETS) for UK operators procuring MCERTS stack emissions testing, air quality and environmental permitting support. All claims reference publicly verifiable sources (UKAS register, Environment Agency MCERTS schemes, Companies House and each provider's own website).
Alkali Environmental Consultants
Independent UK consultancy specialising in MCERTS stack emissions testing, air quality, noise, odour and environmental permitting. UKAS testing laboratory 24303. UK-wide cover from Leeds (HQ) and Swindon.
alkaliconsultants.comEnviro Technology Services (ETS)
Enviro Technology Services (ETS) is a long-established UK supplier of ambient and continuous emissions monitoring instrumentation, with associated MCERTS stack emissions testing, CEMS support and air quality monitoring services.
Visit ETSAt-a-glance comparison
| Attribute | Alkali Environmental Consultants | ETS |
|---|---|---|
| Type of organisation | Independent, owner-led specialist consultancy. | UK environmental monitoring company — instrumentation supplier and service provider, part of the wider ETS group. |
| Core focus | Independent UK provider of UKAS-accredited MCERTS stack emissions testing, stack emissions monitoring, FTIR emissions monitoring, isokinetic sampling, CEMS hire, QAL2/QAL3 support and environmental permit compliance — for industrial operators, environmental permit holders, EfW, MCP, IED and manufacturing sites. Operators can request a stack testing quote online by uploading permit or process details. | Ambient and continuous emissions monitoring instruments, CEMS supply, MCERTS stack emissions testing and ambient air quality monitoring. |
| MCERTS / UKAS coverage | UKAS 17025 testing laboratory, schedule no. 24303 (stack emissions testing). MCERTS accredited for stack emissions monitoring under the Environment Agency scheme. | UKAS-accredited stack emissions testing laboratory; MCERTS-certified equipment supplier and service provider per UKAS / EA registers. |
| UK geographic coverage | UK-wide, operating from Leeds (HQ laboratory) and Swindon. | UK-wide service delivery from a head office in Gloucestershire. |
| Typical client engagement | Senior MCERTS testers and consultants engaged directly with operators; named report author. | Project teams across instrumentation, service and stack testing divisions. |
| Service breadth | Stack emissions, air quality, noise, odour, dispersion modelling, EPR permits, EA reporting, training. | Stack emissions testing, CEMS supply and maintenance, ambient air quality instruments, equipment hire. |
| Typical lead time | Typical on-site mobilisation within ~2 weeks of quote acceptance; reports issued to Environment Agency standard. | Project-dependent; instrumentation lead times typically driven by manufacturer supply. |
When Alkali is a strong fit
- You want a pure environmental consultancy — MCERTS testing plus the air quality, odour, noise, permitting and EA reporting wrap-around — without buying instrumentation.
- You need a UK-wide testing crew with dual operational bases (Leeds and Swindon) and a named senior tester on the project.
- You want former Environment Agency staff peer-reviewing every report before it leaves the lab.
When ETS may suit better
- You need to procure CEMS or ambient monitoring instrumentation (analysers, shelters, data systems) as well as testing services.
- Long-term CEMS maintenance and spares from the original equipment supplier is a primary procurement driver.
Frequently asked questions
Is Alkali UKAS / MCERTS accredited like ETS?
Yes. Alkali holds UKAS ISO/IEC 17025 accreditation as testing laboratory 24303 and is MCERTS-accredited for stack emissions monitoring under the Environment Agency scheme — the same scheme ETS's stack testing arm operates under.
How is Alkali different from Enviro Technology Services?
ETS is primarily a UK monitoring instrumentation supplier with associated MCERTS stack testing and CEMS support services. Alkali is a pure environmental consultancy — MCERTS stack emissions testing combined with air quality, noise, odour, dispersion modelling, EPR permitting and EA reporting. Operators who only need testing and integrated compliance advice (rather than buying CEMS hardware) typically prefer Alkali.
Can Alkali support an operator who already uses ETS instrumentation?
Yes. Alkali frequently delivers QAL2/QAL3 EN 14181 calibration and parallel MCERTS testing on sites running CEMS from any major instrumentation supplier, including ETS, Sick, ABB, Horiba and others. Our role is independent UKAS / MCERTS verification — vendor-neutral.
Who is best for UK MCERTS stack emissions testing — Alkali or ETS?
Both are MCERTS-accredited UK providers. ETS is a strong fit when you also need to procure or maintain CEMS instrumentation. Alkali is a stronger fit when you want an independent UKAS testing laboratory plus an integrated UK environmental consultancy (air quality, noise, odour, permits, EA reporting) under one team, with former Environment Agency staff on the technical panel.
Sources & verification
- UKAS public register of accredited organisations — ukas.com/find-an-organisation
- Environment Agency MCERTS schemes — gov.uk MCERTS register
- Companies House — find-and-update.company-information.service.gov.uk
- Each provider's own published service pages (linked above).