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British Cleaning Solutions
Specialist ventilation cleaning to TR19® standards — ductwork, kitchen extract systems and ventilation hygiene for commercial and industrial sites.
Ductwork CleaningKitchen Extract CleaningVentilation Hygiene
The Tenra Group — Cleaning · Testing · Systems
Specialist cleaning, testing and system maintenance.
Tenra is the group behind British Cleaning Solutions, British Testing Solutions and British System Solutions — one accountable partner for ventilation hygiene and building compliance across the UK.
TR19® compliantVentilation hygiene standard
4.9 from 300+ reviews
1,200+
Sites serviced
4.9 from 300+ reviews
Accredited & compliantTR19®BESA
What we do
Three divisions, one standard.
From ductwork and kitchen extract cleaning to compliance testing and planned maintenance — every requirement handled by one specialist group.
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British Testing Solutions
Independent testing and inspection that keeps your systems safe, efficient and fully compliant — with clear reporting you can act on.
Fire Damper TestingAir Quality TestingSystem Performance
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British System Solutions
Planned and reactive maintenance that keeps building systems running reliably — protecting performance, compliance and uptime.
Planned MaintenanceReactive RepairsSystem Upgrades
Why Tenra
Compliance you can prove.
Every job is delivered by our own qualified engineers and backed by photographic reporting and certification — one point of contact, three specialist divisions, and an audit trail your insurers will want to see.
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Years operating
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Sites serviced
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Qualified engineers
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Compliance rate
How it works
From first call to certification.
A clear, accountable process on every job — whatever the size of the site.
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Enquire
Tell us about your site and requirements — we’ll come back within one working day with a clear, no-obligation quotation.
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Survey
Our engineers assess your systems, access and compliance requirements on site before any work is scheduled.
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Deliver
Work is carried out to TR19® and industry standards by our own qualified engineers, with minimal disruption to your operations.
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Certify
You receive photographic reports and certification for your compliance records — proof of work, not just a promise.
Testimonials
Trusted on sites across the UK.
Speak to the team
Ready when you are.
Get a clear, no-obligation quotation — or call and talk it through with an engineer first.