Hertfordshire · Fire damper testing
Fire damper testing in Shenley, Hertfordshire
Fire damper testing in Shenley from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Missing or out-of-date damper records
- Smoke dampers with no recent test
- Fire dampers that fail to drop shut
Your questions about fire damper testing in Shenley
Who enforces fire safety at workplaces in Shenley?
It’s Hertfordshire Fire and Rescue Service, which covers Shenley. Keep each damper test report with the fire risk assessment and the building’s log book, ready to show.
Do you work overnight in Shenley?
Yes, evening, overnight and weekend work is normal for us. That way a site in Shenley doesn’t have to lose a day’s trading. When you give us a ring on 0345 646 2711, or email photos, mention when the site is quiet.
Do you have a 24/7 line?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we will talk you through the next steps.
Do you work with multi-site operators?
Yes. We work across South East England and London, so sites at different addresses can be planned together as one programme. Every site has its own report.
Is TR19 cleaning required by law?
No. TR19® is BESA’s specification, not legislation. The law is the Regulatory Reform (Fire Safety) Order 2005, which makes the responsible person assess and reduce fire risk, and TR19® is the benchmark for showing that grease in the extract is under control.
What accreditations do you have?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
Can you set up regular visits?
Yes. Scheduled maintenance plans are part of what we do, set at the interval the system needs. Each report recommends when the next visit should be.
Who is responsible for fire damper testing?
It sits with the building’s responsible person. That’s often the employer, owner, landlord, facilities manager or managing agent. Our part is the testing and the records that show it’s been done.
About our fire damper testing in Shenley
Not every damper relies on heat. Smoke dampers are motorised and are opened and closed by a control system, so testing means running them through their controls and checking that each blade moves fully and returns. Typical jobs include smoke dampers that need testing through their controls and dust or grease build-up on damper blades, across motorised smoke dampers, riser dampers and fusible link fire dampers.
Buildings around Shenley may have just a handful of dampers, and each still needs an annual drop test at least, with the result recorded.
The paperwork matters as much as the work. You get a written report with photos after each visit, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.

- Location
- Shenley (WD7)
- Wider area
- Hertfordshire
- Reporting
- Photo report after each visit
- Quote
- A fixed price before we start
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Checked
- 30 October 2026
How the visit works
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. It takes a couple of hours for a few dampers, and a day or more across a big site, and we clear up before we go. For a site near Shenley, the work is booked around your opening hours, evenings and weekends included.
- We plan access and timing with you first, including any out-of-hours work.
- Ceiling tiles and hatches are opened and each damper’s access panel removed.
- We release each blade and check it shuts all the way.
- We reset it and record any dirt, corrosion or damage.
- We close everything up and send the results in a report.
Before we arrive
- Plan for cooking equipment or plant to be off before we arrive
- Mention any sign-in, permit or induction we need
- Let us know about parking and loading
Ask for a quote
Getting a quote does not take long. Send a few details and pictures, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Read more
Between visits
To keep the system working properly between visits:
- Fix water leaks in plant rooms and risers promptly
- Keep cables and fixings away from damper blades
- Keep ceiling hatches and duct panels easy to open
- Act on failed dampers rather than leaving them on file
Dampers we couldn’t reach are listed with the reason, for example a missing panel or a covered hatch. Access panels can be fitted so those dampers are tested on the next visit.
Keeping to at least annual testing stops small faults turning into failed dampers. A blade that is just starting to stick is easier to deal with than a seized one.
What staff can safely do
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We will take a look and give you a fixed quote.
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, which is where we come in.
Landlords, agents and facilities managers
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
Signs you need fire damper testing in Shenley
In most buildings, Shenley included, dampers are out of sight in ceiling voids, risers and service shafts. Without an access panel nearby, they’re easy to forget, and anything nobody can get to goes untested.
What we’re most often called out for:
- Fire dampers that fail to drop shut
- Fire dampers with no recent test record
- Rusted damper blades and springs
- Dampers hidden with no access panel or hatch
Hospitals such as Shenley Hospital, about less than half a mile west, are a good example of buildings with dampers on many floors; if you manage a clinic, surgery or care home near Shenley, the same annual testing applies.
What to look for in a quote
- Which accreditations they hold, and whether you can check them
- What records you’ll receive afterwards
- Whether the quote shows VAT
- What’s included in the scope, part by part
Also near Shenley
More services for Shenley
What affects the quote in Shenley
Every site gets its own quote. This is what makes a difference:
- Parking and loading at the site
- Site requirements such as sign-in and permits
- How easy every part is to reach
- The condition of the system
What you pay depends on how big the system is, the condition it’s in and how easy it is to reach. You get a fixed price before any work starts, so there are no surprises.
What to send for a quote
What to send for a quote:
- Where the site is and what kind of site it is
- The paperwork from the last visit, if you have it
- Photos showing the whole system and its surroundings
- Any symptoms, from odd noises to smells or leaks
Here’s what helps us quote: the address, the type of site and when it’s open, photos of the system and any previous report or certificate. Then call us on 0345 646 2711, or email photos.
Shenley buildings and fire safety
There are about 3 schools, colleges and universities and about 7 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register within 1.5 miles or so of the middle of Shenley. If any of them has ducted ventilation, its dampers need an annual drop test at least. Shenley’s nearest hospital, Shenley Hospital, is about under half a mile west. Healthcare buildings rely on fire compartments to protect people who cannot easily move, and dampers keep those compartments sealed. Hertfordshire Fire and Rescue Service covers Shenley. In most workplaces and other non-domestic buildings, it’s the fire and rescue authority that enforces the Fire Safety Order.
If you manage a school site such as Shenley Primary School, any fire dampers can be tested in the holidays. Wyllyotts Manor, about 4.1 miles east, is one of the historic houses near Shenley, and older buildings converted to new uses often have ventilation added later.
Shenley is about 2 miles north of Borehamwood, in Hertfordshire. Across the WD7 area, we cover fire damper testing for commercial sites. Across Hertfordshire, we cover 381 places, and Shenley is one of them. There’s also a page for London, about 16 miles away.
We cover every part of WD7 for fire damper testing and the roads nearby. Whether your site is on London Road, Southerton Way and Juniper Gardens or a nearby road, we can help. You’ll find Shenley on the B5378, which makes it straightforward for our technicians to reach for out-of-hours visits. We also cover the places around Shenley: Green Street (1 mile south-east), Ridge (2 miles east), Well End (2 miles south-east), Borehamwood (2 miles south) and South Mimms (2 miles east). Further out, we also cover Watford (5 miles south-west), Hemel Hempstead (8 miles north-west), St Albans (4 miles north-west), Welwyn Garden City (8 miles north-east), Harpenden (9 miles north) and Hoddesdon (12 miles east).
Landmarks near Shenley
We work in commercial kitchens and buildings around Manor Lodge School, Hertswood Academy and The Black Lion pub and the streets around them. For rail, the closest station is Radlett station, roughly 1.4 miles south-west. Nearby you will also find Radlett and District Museum (1.5 miles south-west) and Shenley Hospital (less than half a mile west). Green spaces nearby include Verulamium Lake and Broad Colney Lakes.
When it’s something else
To be straight with you, some problems need a different fix:
- Approving the building’s fire strategy
- Fire risk assessments, which need a fire risk assessor
- Gaps in the wall or floor around the damper
If in doubt, call 0345 646 2711 or email us and we will say what we think before booking.
What the work covers
- Wall and floor dampers
- Offices and schools
- Motorised smoke dampers
- Riser dampers
- Hospitals and care homes
- Fusible link fire dampers