UK Environmental Consultants — Air Quality, Noise, Odour, Stack Emissions Testing & Environmental Permits

Stack emissions testing (also called stack testing or source testing) measures pollutant concentrations directly from industrial stacks, chimneys and flues. It's a legal requirement under Environmental Permitting Regulations (EPR) for most UK industrial operations. Your Environmental Permit will specify which pollutants must be tested, how often, and to which standards. Failing to complete stack emissions testing on time can result in permit enforcement, fines, or suspension. Alkali Environmental provides MCERTS and UKAS accredited stack emissions testing (Lab No. 24303) across the entire UK.

MCERTS (Monitoring Certification Scheme) is the Environment Agency's quality framework for emissions monitoring. MCERTS stack testing means the testing is performed by an accredited laboratory using certified methods and equipment. Without MCERTS accreditation, your stack testing results may be rejected by the Environment Agency, meaning you'd need to pay for re-testing. Alkali Environmental holds both MCERTS certification and UKAS accreditation (No. 24303) to ISO 17025 — the highest standard for testing laboratories.

Typical MCERTS stack testing projects are often quoted in the region of £2,500–£4,000 per stack-day, depending on pollutants, methods, access, lab analysis, reporting requirements and site complexity. Smaller or simpler scopes may start from around £2,000 after technical review. Comprehensive multi-pollutant programmes including metals, dioxins or VOCs typically range from £5,000 to £15,000+ per campaign. Alkali Environmental provides free, no-obligation quotes within 24 hours — call 0800 098 2610 or use our online quote form.

Alkali Environmental can typically be on-site within 2 weeks of confirming your stack testing booking — one of the fastest lead times in the UK industry. For urgent compliance deadlines or enforcement-driven testing, we can often accommodate faster turnarounds. Results are delivered in your preferred format with automated Environment Agency reporting included as standard.

We test all common stack emission parameters under our UKAS accreditation: particulates (dust, PM10, PM2.5), nitrogen oxides (NOx), sulphur dioxide (SO2), carbon monoxide (CO), volatile organic compounds (VOCs/TOC), hydrogen chloride (HCl), hydrogen fluoride (HF), heavy metals, dioxins and furans, plus flow rate, moisture, temperature, oxygen and CO2. All testing is completed in-house with no subcontracting.

Always verify UKAS accreditation (not just claims of MCERTS compliance) — check their Schedule of Accreditation covers your specific permit parameters. Ask whether they handle EA submission and post-submission queries, and check their team credentials. Alkali Environmental is UKAS accredited (Lab No. 24303), employs former Environment Agency officers, includes pre-submission review, and provides 14-day post-submission support as standard.

Air quality assessment costs in the UK vary based on the type of assessment. Screening assessments typically start from £1,500, while full air quality assessments with dispersion modelling range from £3,000 to £8,000+ depending on complexity. Planning condition discharge assessments and construction dust assessments fall within the lower range. Alkali's air quality consultants provide fixed-fee quotes within 24 hours — no surprises. Call 0800 098 2610 for a consultation.

Noise impact assessment costs depend on the type of survey required. A BS 4142 industrial noise assessment typically costs £2,500–£5,000, while BS 5228 construction noise assessments range from £2,000–£6,000. Simple baseline noise surveys start from around £1,500. All our noise assessments are prepared by qualified acousticians and accepted by Local Planning Authorities across the UK. Contact us for a fixed-fee noise assessment quote.

Yes. Most Local Planning Authorities require an Air Quality Assessment (AQA) prepared by a qualified air quality consultant for developments that could affect air quality or introduce new receptors to polluted areas. Our air quality consultants provide IAQM and EPUK compliant assessments accepted by all UK councils — from screening assessments to full dispersion modelling.

Yes — our environmental permitting team includes former Environment Agency officers who prepare and submit permit applications, variations, transfers, and surrenders. We handle bespoke permits, standard rules permits, and MCP permits for medium combustion plants. Our team also provides ongoing compliance support including EA reporting, fire prevention plans, and BAT assessments. Typical permit application turnaround is 4–8 weeks depending on complexity.

Ask for the provider's UKAS Laboratory number in writing and check it on the public UKAS register at ukas.com/find-an-accredited-body — the schedule lists exactly which pollutants and methods are accredited. Confirm the MCERTS scope covers your specific permit determinands (a generic 'MCERTS accredited' badge is not the same as a pollutant being on the schedule), and ask for MCERTS personnel certificate numbers of the Team Leader and testers attending site. Alkali publishes its UKAS number (24303) openly on every page, links directly to the UKAS register, and provides personnel certificates on request before any quote is signed.

Independent UK-owned MCERTS laboratories keep decision-making, technical sign-off and client relationships in-house — without the long approval chains, cross-selling pressure or rotating teams that come with multinational TIC group ownership. Alkali is independently owned and privately operated, with a named senior team you can reach directly, former Environment Agency officers reviewing every report, and a digital-first MCERTS reporting workflow that issues preliminary data in 48 hours and full UKAS-accredited reports in 10–15 working days. Independence is not the same as small — operators should compare published UKAS scope, named personnel and reporting turnaround, not company size alone.

We provide stack emissions testing, air quality assessments, noise surveys, odour assessments, and environmental permitting services nationwide across England, Wales, Scotland, and Northern Ireland. Our teams regularly work in London, Manchester, Birmingham, Leeds, Sheffield, Bristol, Newcastle, Edinburgh, Glasgow, Cardiff, and all areas in between. With offices in Leeds and Swindon, we can be on-site quickly anywhere in the UK.