08:30 Who we are

New name on the van. Old hands on the tools.

Clean Ducts has spent a decade keeping commercial and industrial ventilation clean, safe and compliant — ductwork, kitchen extract, fire dampers, AHUs, clean rooms. Many of our supervisors and engineers have over 30 years in the ventilation industry.

Behind the brand is Gemini AMPM Ltd — the employee-owned fire and security firm that has protected the South East’s most demanding buildings since 1997. Clean Ducts is its ventilation-hygiene arm: same engineers’ culture, same evidence-first standard, same group answerable for the result.

Ventilation supervisor on site
Head of Ventilation · on site
1997
The group’s trading history — Gemini AMPM, protecting buildings ever since
EOT
Employee-owned — every engineer has a stake in the result
30+ YRS
Ventilation experience across our senior engineers and supervisors
2
Offices — Burgess Hill (South East) and Chippenham (South West)

11:00 The standard

Certified, verified, on the register.

TR19®

Every clean to BESA’s Guide to Good Practice — TR19 for ventilation hygiene, TR19 Grease for kitchen extract. Deposits measured, results certificated.

BESCA VH

Vent Hygiene Associate member of BESCA — our work is independently verified, not self-declared.

Group: 13+

Live accreditations held across AMPM Group — BAFE, NSI Gold, FIRAS, CHAS, Constructionline, SafeContractor and more, each verifiable on its register.

14:00 How we run a job

Consult. Agree. Execute. Prove.

01
Consultation

Free survey. We walk the system, measure what’s there and tell you what the regulations actually require.

02
Agreement

A written scope with transparent pricing — frequency set by the evidence, not by a sales target.

03
Execution

Worked around your operation — nights, weekends, term breaks — by directly employed engineers.

04
Proof

Photographs, measurements, test results and certificates — filed and in your inbox before we leave site.

19:00 The group

Three names. One standard.

Talk to the team.

Burgess Hill · Chippenham · working nationwide for group clients.